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Posted to commits@trafficserver.apache.org by zw...@apache.org on 2019/11/19 03:00:42 UTC

[trafficserver] branch 9.0.x updated: Upgrade Catch.hpp to v2.11 (#6185)

This is an automated email from the ASF dual-hosted git repository.

zwoop pushed a commit to branch 9.0.x
in repository https://gitbox.apache.org/repos/asf/trafficserver.git


The following commit(s) were added to refs/heads/9.0.x by this push:
     new ec47b2b  Upgrade Catch.hpp to v2.11 (#6185)
ec47b2b is described below

commit ec47b2bcd4ba650406332b1dfa629da6a67f4367
Author: Leif Hedstrom <zw...@apache.org>
AuthorDate: Tue Nov 19 11:00:11 2019 +0800

    Upgrade Catch.hpp to v2.11 (#6185)
    
    (cherry picked from commit 95601e9be8367cddce169bf9056da68b2d14517d)
---
 tests/include/catch.hpp | 10300 +++++++++++++++++++++++++++++++++-------------
 1 file changed, 7420 insertions(+), 2880 deletions(-)

diff --git a/tests/include/catch.hpp b/tests/include/catch.hpp
index bc24a42..b4eccfc 100644
--- a/tests/include/catch.hpp
+++ b/tests/include/catch.hpp
@@ -1,9 +1,9 @@
 /*
- *  Catch v2.2.2
- *  Generated: 2018-04-06 12:05:03.186665
+ *  Catch v2.11.0
+ *  Generated: 2019-11-15 15:01:56.628356
  *  ----------------------------------------------------------
  *  This file has been merged from multiple headers. Please don't edit it directly
- *  Copyright (c) 2018 Two Blue Cubes Ltd. All rights reserved.
+ *  Copyright (c) 2019 Two Blue Cubes Ltd. All rights reserved.
  *
  *  Distributed under the Boost Software License, Version 1.0. (See accompanying
  *  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
@@ -14,8 +14,8 @@
 
 
 #define CATCH_VERSION_MAJOR 2
-#define CATCH_VERSION_MINOR 2
-#define CATCH_VERSION_PATCH 2
+#define CATCH_VERSION_MINOR 11
+#define CATCH_VERSION_PATCH 0
 
 #ifdef __clang__
 #    pragma clang system_header
@@ -30,14 +30,17 @@
 #       pragma warning(push)
 #       pragma warning(disable: 161 1682)
 #   else // __ICC
-#       pragma clang diagnostic ignored "-Wunused-variable"
 #       pragma clang diagnostic push
 #       pragma clang diagnostic ignored "-Wpadded"
 #       pragma clang diagnostic ignored "-Wswitch-enum"
 #       pragma clang diagnostic ignored "-Wcovered-switch-default"
 #    endif
 #elif defined __GNUC__
-#    pragma GCC diagnostic ignored "-Wparentheses"
+     // Because REQUIREs trigger GCC's -Wparentheses, and because still
+     // supported version of g++ have only buggy support for _Pragmas,
+     // Wparentheses have to be suppressed globally.
+#    pragma GCC diagnostic ignored "-Wparentheses" // See #674 for details
+
 #    pragma GCC diagnostic push
 #    pragma GCC diagnostic ignored "-Wunused-variable"
 #    pragma GCC diagnostic ignored "-Wpadded"
@@ -55,7 +58,9 @@
 #  if defined(CATCH_CONFIG_DISABLE_MATCHERS)
 #    undef CATCH_CONFIG_DISABLE_MATCHERS
 #  endif
-#  define CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER
+#  if !defined(CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER)
+#    define CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER
+#  endif
 #endif
 
 #if !defined(CATCH_CONFIG_IMPL_ONLY)
@@ -72,7 +77,7 @@
 #elif defined(linux) || defined(__linux) || defined(__linux__)
 #  define CATCH_PLATFORM_LINUX
 
-#elif defined(WIN32) || defined(__WIN32__) || defined(_WIN32) || defined(_MSC_VER)
+#elif defined(WIN32) || defined(__WIN32__) || defined(_WIN32) || defined(_MSC_VER) || defined(__MINGW32__)
 #  define CATCH_PLATFORM_WINDOWS
 #endif
 
@@ -104,6 +109,7 @@ namespace Catch {
 // CATCH_CONFIG_COUNTER : is the __COUNTER__ macro supported?
 // CATCH_CONFIG_WINDOWS_SEH : is Windows SEH supported?
 // CATCH_CONFIG_POSIX_SIGNALS : are POSIX signals supported?
+// CATCH_CONFIG_DISABLE_EXCEPTIONS : Are exceptions enabled?
 // ****************
 // Note to maintainers: if new toggles are added please document them
 // in configuration.md, too
@@ -116,11 +122,11 @@ namespace Catch {
 
 #ifdef __cplusplus
 
-#  if __cplusplus >= 201402L
+#  if (__cplusplus >= 201402L) || (defined(_MSVC_LANG) && _MSVC_LANG >= 201402L)
 #    define CATCH_CPP14_OR_GREATER
 #  endif
 
-#  if __cplusplus >= 201703L
+#  if (__cplusplus >= 201703L) || (defined(_MSVC_LANG) && _MSVC_LANG >= 201703L)
 #    define CATCH_CPP17_OR_GREATER
 #  endif
 
@@ -130,20 +136,33 @@ namespace Catch {
 #  define CATCH_INTERNAL_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS
 #endif
 
-#ifdef __clang__
+// We have to avoid both ICC and Clang, because they try to mask themselves
+// as gcc, and we want only GCC in this block
+#if defined(__GNUC__) && !defined(__clang__) && !defined(__ICC)
+#    define CATCH_INTERNAL_START_WARNINGS_SUPPRESSION _Pragma( "GCC diagnostic push" )
+#    define CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION  _Pragma( "GCC diagnostic pop" )
+#endif
+
+#if defined(__clang__)
+
+#    define CATCH_INTERNAL_START_WARNINGS_SUPPRESSION _Pragma( "clang diagnostic push" )
+#    define CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION  _Pragma( "clang diagnostic pop" )
 
-#       define CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
-            _Pragma( "clang diagnostic push" ) \
-            _Pragma( "clang diagnostic ignored \"-Wexit-time-destructors\"" ) \
-            _Pragma( "clang diagnostic ignored \"-Wglobal-constructors\"")
-#       define CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS \
-            _Pragma( "clang diagnostic pop" )
+#    define CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
+         _Pragma( "clang diagnostic ignored \"-Wexit-time-destructors\"" ) \
+         _Pragma( "clang diagnostic ignored \"-Wglobal-constructors\"")
 
-#       define CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS \
-            _Pragma( "clang diagnostic push" ) \
-            _Pragma( "clang diagnostic ignored \"-Wparentheses\"" )
-#       define CATCH_INTERNAL_UNSUPPRESS_PARENTHESES_WARNINGS \
-            _Pragma( "clang diagnostic pop" )
+#    define CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS \
+         _Pragma( "clang diagnostic ignored \"-Wparentheses\"" )
+
+#    define CATCH_INTERNAL_SUPPRESS_UNUSED_WARNINGS \
+         _Pragma( "clang diagnostic ignored \"-Wunused-variable\"" )
+
+#    define CATCH_INTERNAL_SUPPRESS_ZERO_VARIADIC_WARNINGS \
+         _Pragma( "clang diagnostic ignored \"-Wgnu-zero-variadic-macro-arguments\"" )
+
+#    define CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS \
+         _Pragma( "clang diagnostic ignored \"-Wunused-template\"" )
 
 #endif // __clang__
 
@@ -165,18 +184,47 @@ namespace Catch {
 #endif
 
 ////////////////////////////////////////////////////////////////////////////////
+// Android somehow still does not support std::to_string
+#if defined(__ANDROID__)
+#    define CATCH_INTERNAL_CONFIG_NO_CPP11_TO_STRING
+#    define CATCH_INTERNAL_CONFIG_ANDROID_LOGWRITE
+#endif
+
+////////////////////////////////////////////////////////////////////////////////
+// Not all Windows environments support SEH properly
+#if defined(__MINGW32__)
+#    define CATCH_INTERNAL_CONFIG_NO_WINDOWS_SEH
+#endif
+
+////////////////////////////////////////////////////////////////////////////////
+// PS4
+#if defined(__ORBIS__)
+#    define CATCH_INTERNAL_CONFIG_NO_NEW_CAPTURE
+#endif
+
+////////////////////////////////////////////////////////////////////////////////
 // Cygwin
 #ifdef __CYGWIN__
 
 // Required for some versions of Cygwin to declare gettimeofday
 // see: http://stackoverflow.com/questions/36901803/gettimeofday-not-declared-in-this-scope-cygwin
 #   define _BSD_SOURCE
+// some versions of cygwin (most) do not support std::to_string. Use the libstd check.
+// https://gcc.gnu.org/onlinedocs/gcc-4.8.2/libstdc++/api/a01053_source.html line 2812-2813
+# if !((__cplusplus >= 201103L) && defined(_GLIBCXX_USE_C99) \
+           && !defined(_GLIBCXX_HAVE_BROKEN_VSWPRINTF))
 
+#    define CATCH_INTERNAL_CONFIG_NO_CPP11_TO_STRING
+
+# endif
 #endif // __CYGWIN__
 
 ////////////////////////////////////////////////////////////////////////////////
 // Visual C++
-#ifdef _MSC_VER
+#if defined(_MSC_VER)
+
+#  define CATCH_INTERNAL_START_WARNINGS_SUPPRESSION __pragma( warning(push) )
+#  define CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION  __pragma( warning(pop) )
 
 #  if _MSC_VER >= 1900 // Visual Studio 2015 or newer
 #    define CATCH_INTERNAL_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS
@@ -190,16 +238,38 @@ namespace Catch {
 #    define CATCH_INTERNAL_CONFIG_WINDOWS_SEH
 #  endif
 
+// MSVC traditional preprocessor needs some workaround for __VA_ARGS__
+// _MSVC_TRADITIONAL == 0 means new conformant preprocessor
+// _MSVC_TRADITIONAL == 1 means old traditional non-conformant preprocessor
+#  if !defined(_MSVC_TRADITIONAL) || (defined(_MSVC_TRADITIONAL) && _MSVC_TRADITIONAL)
+#    define CATCH_INTERNAL_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
+#  endif
+#endif // _MSC_VER
+
+#if defined(_REENTRANT) || defined(_MSC_VER)
+// Enable async processing, as -pthread is specified or no additional linking is required
+# define CATCH_INTERNAL_CONFIG_USE_ASYNC
 #endif // _MSC_VER
 
 ////////////////////////////////////////////////////////////////////////////////
+// Check if we are compiled with -fno-exceptions or equivalent
+#if defined(__EXCEPTIONS) || defined(__cpp_exceptions) || defined(_CPPUNWIND)
+#  define CATCH_INTERNAL_CONFIG_EXCEPTIONS_ENABLED
+#endif
 
+////////////////////////////////////////////////////////////////////////////////
 // DJGPP
 #ifdef __DJGPP__
 #  define CATCH_INTERNAL_CONFIG_NO_WCHAR
 #endif // __DJGPP__
 
 ////////////////////////////////////////////////////////////////////////////////
+// Embarcadero C++Build
+#if defined(__BORLANDC__)
+    #define CATCH_INTERNAL_CONFIG_POLYFILL_ISNAN
+#endif
+
+////////////////////////////////////////////////////////////////////////////////
 
 // Use of __COUNTER__ is suppressed during code analysis in
 // CLion/AppCode 2017.2.x and former, because __COUNTER__ is not properly
@@ -210,10 +280,59 @@ namespace Catch {
     #define CATCH_INTERNAL_CONFIG_COUNTER
 #endif
 
+////////////////////////////////////////////////////////////////////////////////
+
+// RTX is a special version of Windows that is real time.
+// This means that it is detected as Windows, but does not provide
+// the same set of capabilities as real Windows does.
+#if defined(UNDER_RTSS) || defined(RTX64_BUILD)
+    #define CATCH_INTERNAL_CONFIG_NO_WINDOWS_SEH
+    #define CATCH_INTERNAL_CONFIG_NO_ASYNC
+    #define CATCH_CONFIG_COLOUR_NONE
+#endif
+
+#if defined(__UCLIBC__)
+#define CATCH_INTERNAL_CONFIG_GLOBAL_NEXTAFTER
+#endif
+
+// Various stdlib support checks that require __has_include
+#if defined(__has_include)
+  // Check if string_view is available and usable
+  #if __has_include(<string_view>) && defined(CATCH_CPP17_OR_GREATER)
+  #    define CATCH_INTERNAL_CONFIG_CPP17_STRING_VIEW
+  #endif
+
+  // Check if optional is available and usable
+  #  if __has_include(<optional>) && defined(CATCH_CPP17_OR_GREATER)
+  #    define CATCH_INTERNAL_CONFIG_CPP17_OPTIONAL
+  #  endif // __has_include(<optional>) && defined(CATCH_CPP17_OR_GREATER)
+
+  // Check if byte is available and usable
+  #  if __has_include(<cstddef>) && defined(CATCH_CPP17_OR_GREATER)
+  #    define CATCH_INTERNAL_CONFIG_CPP17_BYTE
+  #  endif // __has_include(<cstddef>) && defined(CATCH_CPP17_OR_GREATER)
+
+  // Check if variant is available and usable
+  #  if __has_include(<variant>) && defined(CATCH_CPP17_OR_GREATER)
+  #    if defined(__clang__) && (__clang_major__ < 8)
+         // work around clang bug with libstdc++ https://bugs.llvm.org/show_bug.cgi?id=31852
+         // fix should be in clang 8, workaround in libstdc++ 8.2
+  #      include <ciso646>
+  #      if defined(__GLIBCXX__) && defined(_GLIBCXX_RELEASE) && (_GLIBCXX_RELEASE < 9)
+  #        define CATCH_CONFIG_NO_CPP17_VARIANT
+  #      else
+  #        define CATCH_INTERNAL_CONFIG_CPP17_VARIANT
+  #      endif // defined(__GLIBCXX__) && defined(_GLIBCXX_RELEASE) && (_GLIBCXX_RELEASE < 9)
+  #    else
+  #      define CATCH_INTERNAL_CONFIG_CPP17_VARIANT
+  #    endif // defined(__clang__) && (__clang_major__ < 8)
+  #  endif // __has_include(<variant>) && defined(CATCH_CPP17_OR_GREATER)
+#endif // defined(__has_include)
+
 #if defined(CATCH_INTERNAL_CONFIG_COUNTER) && !defined(CATCH_CONFIG_NO_COUNTER) && !defined(CATCH_CONFIG_COUNTER)
 #   define CATCH_CONFIG_COUNTER
 #endif
-#if defined(CATCH_INTERNAL_CONFIG_WINDOWS_SEH) && !defined(CATCH_CONFIG_NO_WINDOWS_SEH) && !defined(CATCH_CONFIG_WINDOWS_SEH)
+#if defined(CATCH_INTERNAL_CONFIG_WINDOWS_SEH) && !defined(CATCH_CONFIG_NO_WINDOWS_SEH) && !defined(CATCH_CONFIG_WINDOWS_SEH) && !defined(CATCH_INTERNAL_CONFIG_NO_WINDOWS_SEH)
 #   define CATCH_CONFIG_WINDOWS_SEH
 #endif
 // This is set by default, because we assume that unix compilers are posix-signal-compatible by default.
@@ -225,17 +344,101 @@ namespace Catch {
 #   define CATCH_CONFIG_WCHAR
 #endif
 
+#if !defined(CATCH_INTERNAL_CONFIG_NO_CPP11_TO_STRING) && !defined(CATCH_CONFIG_NO_CPP11_TO_STRING) && !defined(CATCH_CONFIG_CPP11_TO_STRING)
+#    define CATCH_CONFIG_CPP11_TO_STRING
+#endif
+
+#if defined(CATCH_INTERNAL_CONFIG_CPP17_OPTIONAL) && !defined(CATCH_CONFIG_NO_CPP17_OPTIONAL) && !defined(CATCH_CONFIG_CPP17_OPTIONAL)
+#  define CATCH_CONFIG_CPP17_OPTIONAL
+#endif
+
 #if defined(CATCH_INTERNAL_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS) && !defined(CATCH_CONFIG_NO_CPP17_UNCAUGHT_EXCEPTIONS) && !defined(CATCH_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS)
 #  define CATCH_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS
 #endif
 
+#if defined(CATCH_INTERNAL_CONFIG_CPP17_STRING_VIEW) && !defined(CATCH_CONFIG_NO_CPP17_STRING_VIEW) && !defined(CATCH_CONFIG_CPP17_STRING_VIEW)
+#  define CATCH_CONFIG_CPP17_STRING_VIEW
+#endif
+
+#if defined(CATCH_INTERNAL_CONFIG_CPP17_VARIANT) && !defined(CATCH_CONFIG_NO_CPP17_VARIANT) && !defined(CATCH_CONFIG_CPP17_VARIANT)
+#  define CATCH_CONFIG_CPP17_VARIANT
+#endif
+
+#if defined(CATCH_INTERNAL_CONFIG_CPP17_BYTE) && !defined(CATCH_CONFIG_NO_CPP17_BYTE) && !defined(CATCH_CONFIG_CPP17_BYTE)
+#  define CATCH_CONFIG_CPP17_BYTE
+#endif
+
+#if defined(CATCH_CONFIG_EXPERIMENTAL_REDIRECT)
+#  define CATCH_INTERNAL_CONFIG_NEW_CAPTURE
+#endif
+
+#if defined(CATCH_INTERNAL_CONFIG_NEW_CAPTURE) && !defined(CATCH_INTERNAL_CONFIG_NO_NEW_CAPTURE) && !defined(CATCH_CONFIG_NO_NEW_CAPTURE) && !defined(CATCH_CONFIG_NEW_CAPTURE)
+#  define CATCH_CONFIG_NEW_CAPTURE
+#endif
+
+#if !defined(CATCH_INTERNAL_CONFIG_EXCEPTIONS_ENABLED) && !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
+#  define CATCH_CONFIG_DISABLE_EXCEPTIONS
+#endif
+
+#if defined(CATCH_INTERNAL_CONFIG_POLYFILL_ISNAN) && !defined(CATCH_CONFIG_NO_POLYFILL_ISNAN) && !defined(CATCH_CONFIG_POLYFILL_ISNAN)
+#  define CATCH_CONFIG_POLYFILL_ISNAN
+#endif
+
+#if defined(CATCH_INTERNAL_CONFIG_USE_ASYNC)  && !defined(CATCH_INTERNAL_CONFIG_NO_ASYNC) && !defined(CATCH_CONFIG_NO_USE_ASYNC) && !defined(CATCH_CONFIG_USE_ASYNC)
+#  define CATCH_CONFIG_USE_ASYNC
+#endif
+
+#if defined(CATCH_INTERNAL_CONFIG_ANDROID_LOGWRITE) && !defined(CATCH_CONFIG_NO_ANDROID_LOGWRITE) && !defined(CATCH_CONFIG_ANDROID_LOGWRITE)
+#  define CATCH_CONFIG_ANDROID_LOGWRITE
+#endif
+
+#if defined(CATCH_INTERNAL_CONFIG_GLOBAL_NEXTAFTER) && !defined(CATCH_CONFIG_NO_GLOBAL_NEXTAFTER) && !defined(CATCH_CONFIG_GLOBAL_NEXTAFTER)
+#  define CATCH_CONFIG_GLOBAL_NEXTAFTER
+#endif
+
+// Even if we do not think the compiler has that warning, we still have
+// to provide a macro that can be used by the code.
+#if !defined(CATCH_INTERNAL_START_WARNINGS_SUPPRESSION)
+#   define CATCH_INTERNAL_START_WARNINGS_SUPPRESSION
+#endif
+#if !defined(CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION)
+#   define CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION
+#endif
 #if !defined(CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS)
 #   define CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS
-#   define CATCH_INTERNAL_UNSUPPRESS_PARENTHESES_WARNINGS
 #endif
 #if !defined(CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS)
 #   define CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS
-#   define CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS
+#endif
+#if !defined(CATCH_INTERNAL_SUPPRESS_UNUSED_WARNINGS)
+#   define CATCH_INTERNAL_SUPPRESS_UNUSED_WARNINGS
+#endif
+#if !defined(CATCH_INTERNAL_SUPPRESS_ZERO_VARIADIC_WARNINGS)
+#   define CATCH_INTERNAL_SUPPRESS_ZERO_VARIADIC_WARNINGS
+#endif
+
+#if defined(__APPLE__) && defined(__apple_build_version__) && (__clang_major__ < 10)
+#   undef CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS
+#elif defined(__clang__) && (__clang_major__ < 5)
+#   undef CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS
+#endif
+
+#if !defined(CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS)
+#   define CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS
+#endif
+
+#if defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
+#define CATCH_TRY if ((true))
+#define CATCH_CATCH_ALL if ((false))
+#define CATCH_CATCH_ANON(type) if ((false))
+#else
+#define CATCH_TRY try
+#define CATCH_CATCH_ALL catch (...)
+#define CATCH_CATCH_ANON(type) catch (type)
+#endif
+
+#if defined(CATCH_INTERNAL_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR) && !defined(CATCH_CONFIG_NO_TRADITIONAL_MSVC_PREPROCESSOR) && !defined(CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR)
+#define CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
 #endif
 
 // end catch_compiler_capabilities.h
@@ -251,6 +454,10 @@ namespace Catch {
 #include <string>
 #include <cstdint>
 
+// We need a dummy global operator<< so we can bring it into Catch namespace later
+struct Catch_global_namespace_dummy {};
+std::ostream& operator<<(std::ostream&, Catch_global_namespace_dummy);
+
 namespace Catch {
 
     struct CaseSensitive { enum Choice {
@@ -277,12 +484,12 @@ namespace Catch {
             line( _line )
         {}
 
-        SourceLineInfo( SourceLineInfo const& other )        = default;
-        SourceLineInfo( SourceLineInfo && )                  = default;
-        SourceLineInfo& operator = ( SourceLineInfo const& ) = default;
-        SourceLineInfo& operator = ( SourceLineInfo && )     = default;
+        SourceLineInfo( SourceLineInfo const& other )            = default;
+        SourceLineInfo& operator = ( SourceLineInfo const& )     = default;
+        SourceLineInfo( SourceLineInfo&& )              noexcept = default;
+        SourceLineInfo& operator = ( SourceLineInfo&& ) noexcept = default;
 
-        bool empty() const noexcept;
+        bool empty() const noexcept { return file[0] == '\0'; }
         bool operator == ( SourceLineInfo const& other ) const noexcept;
         bool operator < ( SourceLineInfo const& other ) const noexcept;
 
@@ -292,6 +499,11 @@ namespace Catch {
 
     std::ostream& operator << ( std::ostream& os, SourceLineInfo const& info );
 
+    // Bring in operator<< from global namespace into Catch namespace
+    // This is necessary because the overload of operator<< above makes
+    // lookup stop at namespace Catch
+    using ::operator<<;
+
     // Use this in variadic streaming macros to allow
     //    >> +StreamEndStop
     // as well as
@@ -318,9 +530,10 @@ namespace Catch {
 } // end namespace Catch
 
 #define CATCH_REGISTER_TAG_ALIAS( alias, spec ) \
+    CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
     CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
     namespace{ Catch::RegistrarForTagAliases INTERNAL_CATCH_UNIQUE_NAME( AutoRegisterTagAlias )( alias, spec, CATCH_INTERNAL_LINEINFO ); } \
-    CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS
+    CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION
 
 // end catch_tag_alias_autoregistrar.h
 // start catch_test_registry.h
@@ -328,7 +541,6 @@ namespace Catch {
 // start catch_interfaces_testcase.h
 
 #include <vector>
-#include <memory>
 
 namespace Catch {
 
@@ -339,8 +551,6 @@ namespace Catch {
         virtual ~ITestInvoker();
     };
 
-    using ITestCasePtr = std::shared_ptr<ITestInvoker>;
-
     class TestCase;
     struct IConfig;
 
@@ -350,6 +560,7 @@ namespace Catch {
         virtual std::vector<TestCase> const& getAllTestsSorted( IConfig const& config ) const = 0;
     };
 
+    bool isThrowSafe( TestCase const& testCase, IConfig const& config );
     bool matchTest( TestCase const& testCase, TestSpec const& testSpec, IConfig const& config );
     std::vector<TestCase> filterTests( std::vector<TestCase> const& testCases, TestSpec const& testSpec, IConfig const& config );
     std::vector<TestCase> const& getAllTestCasesSorted( IConfig const& config );
@@ -362,55 +573,30 @@ namespace Catch {
 #include <cstddef>
 #include <string>
 #include <iosfwd>
+#include <cassert>
 
 namespace Catch {
 
-    class StringData;
-
     /// A non-owning string class (similar to the forthcoming std::string_view)
     /// Note that, because a StringRef may be a substring of another string,
-    /// it may not be null terminated. c_str() must return a null terminated
-    /// string, however, and so the StringRef will internally take ownership
-    /// (taking a copy), if necessary. In theory this ownership is not externally
-    /// visible - but it does mean (substring) StringRefs should not be shared between
-    /// threads.
+    /// it may not be null terminated.
     class StringRef {
     public:
         using size_type = std::size_t;
+        using const_iterator = const char*;
 
     private:
-        friend struct StringRefTestAccess;
-
-        char const* m_start;
-        size_type m_size;
-
-        char* m_data = nullptr;
-
-        void takeOwnership();
-
         static constexpr char const* const s_empty = "";
 
-    public: // construction/ assignment
-        StringRef() noexcept
-        :   StringRef( s_empty, 0 )
-        {}
-
-        StringRef( StringRef const& other ) noexcept
-        :   m_start( other.m_start ),
-            m_size( other.m_size )
-        {}
+        char const* m_start = s_empty;
+        size_type m_size = 0;
 
-        StringRef( StringRef&& other ) noexcept
-        :   m_start( other.m_start ),
-            m_size( other.m_size ),
-            m_data( other.m_data )
-        {
-            other.m_data = nullptr;
-        }
+    public: // construction
+        constexpr StringRef() noexcept = default;
 
         StringRef( char const* rawChars ) noexcept;
 
-        StringRef( char const* rawChars, size_type size ) noexcept
+        constexpr StringRef( char const* rawChars, size_type size ) noexcept
         :   m_start( rawChars ),
             m_size( size )
         {}
@@ -420,65 +606,333 @@ namespace Catch {
             m_size( stdString.size() )
         {}
 
-        ~StringRef() noexcept {
-            delete[] m_data;
-        }
-
-        auto operator = ( StringRef const &other ) noexcept -> StringRef& {
-            delete[] m_data;
-            m_data = nullptr;
-            m_start = other.m_start;
-            m_size = other.m_size;
-            return *this;
+        explicit operator std::string() const {
+            return std::string(m_start, m_size);
         }
 
-        operator std::string() const;
-
-        void swap( StringRef& other ) noexcept;
-
     public: // operators
         auto operator == ( StringRef const& other ) const noexcept -> bool;
-        auto operator != ( StringRef const& other ) const noexcept -> bool;
+        auto operator != (StringRef const& other) const noexcept -> bool {
+            return !(*this == other);
+        }
 
-        auto operator[] ( size_type index ) const noexcept -> char;
+        auto operator[] ( size_type index ) const noexcept -> char {
+            assert(index < m_size);
+            return m_start[index];
+        }
 
     public: // named queries
-        auto empty() const noexcept -> bool {
+        constexpr auto empty() const noexcept -> bool {
             return m_size == 0;
         }
-        auto size() const noexcept -> size_type {
+        constexpr auto size() const noexcept -> size_type {
             return m_size;
         }
 
-        auto numberOfCharacters() const noexcept -> size_type;
+        // Returns the current start pointer. If the StringRef is not
+        // null-terminated, throws std::domain_exception
         auto c_str() const -> char const*;
 
     public: // substrings and searches
-        auto substr( size_type start, size_type size ) const noexcept -> StringRef;
+        // Returns a substring of [start, start + length).
+        // If start + length > size(), then the substring is [start, size()).
+        // If start > size(), then the substring is empty.
+        auto substr( size_type start, size_type length ) const noexcept -> StringRef;
 
-        // Returns the current start pointer.
-        // Note that the pointer can change when if the StringRef is a substring
-        auto currentData() const noexcept -> char const*;
+        // Returns the current start pointer. May not be null-terminated.
+        auto data() const noexcept -> char const*;
 
-    private: // ownership queries - may not be consistent between calls
-        auto isOwned() const noexcept -> bool;
-        auto isSubstring() const noexcept -> bool;
-    };
+        constexpr auto isNullTerminated() const noexcept -> bool {
+            return m_start[m_size] == '\0';
+        }
 
-    auto operator + ( StringRef const& lhs, StringRef const& rhs ) -> std::string;
-    auto operator + ( StringRef const& lhs, char const* rhs ) -> std::string;
-    auto operator + ( char const* lhs, StringRef const& rhs ) -> std::string;
+    public: // iterators
+        constexpr const_iterator begin() const { return m_start; }
+        constexpr const_iterator end() const { return m_start + m_size; }
+    };
 
     auto operator += ( std::string& lhs, StringRef const& sr ) -> std::string&;
     auto operator << ( std::ostream& os, StringRef const& sr ) -> std::ostream&;
 
-    inline auto operator "" _sr( char const* rawChars, std::size_t size ) noexcept -> StringRef {
+    constexpr auto operator "" _sr( char const* rawChars, std::size_t size ) noexcept -> StringRef {
         return StringRef( rawChars, size );
     }
-
 } // namespace Catch
 
+constexpr auto operator "" _catch_sr( char const* rawChars, std::size_t size ) noexcept -> Catch::StringRef {
+    return Catch::StringRef( rawChars, size );
+}
+
 // end catch_stringref.h
+// start catch_preprocessor.hpp
+
+
+#define CATCH_RECURSION_LEVEL0(...) __VA_ARGS__
+#define CATCH_RECURSION_LEVEL1(...) CATCH_RECURSION_LEVEL0(CATCH_RECURSION_LEVEL0(CATCH_RECURSION_LEVEL0(__VA_ARGS__)))
+#define CATCH_RECURSION_LEVEL2(...) CATCH_RECURSION_LEVEL1(CATCH_RECURSION_LEVEL1(CATCH_RECURSION_LEVEL1(__VA_ARGS__)))
+#define CATCH_RECURSION_LEVEL3(...) CATCH_RECURSION_LEVEL2(CATCH_RECURSION_LEVEL2(CATCH_RECURSION_LEVEL2(__VA_ARGS__)))
+#define CATCH_RECURSION_LEVEL4(...) CATCH_RECURSION_LEVEL3(CATCH_RECURSION_LEVEL3(CATCH_RECURSION_LEVEL3(__VA_ARGS__)))
+#define CATCH_RECURSION_LEVEL5(...) CATCH_RECURSION_LEVEL4(CATCH_RECURSION_LEVEL4(CATCH_RECURSION_LEVEL4(__VA_ARGS__)))
+
+#ifdef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
+#define INTERNAL_CATCH_EXPAND_VARGS(...) __VA_ARGS__
+// MSVC needs more evaluations
+#define CATCH_RECURSION_LEVEL6(...) CATCH_RECURSION_LEVEL5(CATCH_RECURSION_LEVEL5(CATCH_RECURSION_LEVEL5(__VA_ARGS__)))
+#define CATCH_RECURSE(...)  CATCH_RECURSION_LEVEL6(CATCH_RECURSION_LEVEL6(__VA_ARGS__))
+#else
+#define CATCH_RECURSE(...)  CATCH_RECURSION_LEVEL5(__VA_ARGS__)
+#endif
+
+#define CATCH_REC_END(...)
+#define CATCH_REC_OUT
+
+#define CATCH_EMPTY()
+#define CATCH_DEFER(id) id CATCH_EMPTY()
+
+#define CATCH_REC_GET_END2() 0, CATCH_REC_END
+#define CATCH_REC_GET_END1(...) CATCH_REC_GET_END2
+#define CATCH_REC_GET_END(...) CATCH_REC_GET_END1
+#define CATCH_REC_NEXT0(test, next, ...) next CATCH_REC_OUT
+#define CATCH_REC_NEXT1(test, next) CATCH_DEFER ( CATCH_REC_NEXT0 ) ( test, next, 0)
+#define CATCH_REC_NEXT(test, next)  CATCH_REC_NEXT1(CATCH_REC_GET_END test, next)
+
+#define CATCH_REC_LIST0(f, x, peek, ...) , f(x) CATCH_DEFER ( CATCH_REC_NEXT(peek, CATCH_REC_LIST1) ) ( f, peek, __VA_ARGS__ )
+#define CATCH_REC_LIST1(f, x, peek, ...) , f(x) CATCH_DEFER ( CATCH_REC_NEXT(peek, CATCH_REC_LIST0) ) ( f, peek, __VA_ARGS__ )
+#define CATCH_REC_LIST2(f, x, peek, ...)   f(x) CATCH_DEFER ( CATCH_REC_NEXT(peek, CATCH_REC_LIST1) ) ( f, peek, __VA_ARGS__ )
+
+#define CATCH_REC_LIST0_UD(f, userdata, x, peek, ...) , f(userdata, x) CATCH_DEFER ( CATCH_REC_NEXT(peek, CATCH_REC_LIST1_UD) ) ( f, userdata, peek, __VA_ARGS__ )
+#define CATCH_REC_LIST1_UD(f, userdata, x, peek, ...) , f(userdata, x) CATCH_DEFER ( CATCH_REC_NEXT(peek, CATCH_REC_LIST0_UD) ) ( f, userdata, peek, __VA_ARGS__ )
+#define CATCH_REC_LIST2_UD(f, userdata, x, peek, ...)   f(userdata, x) CATCH_DEFER ( CATCH_REC_NEXT(peek, CATCH_REC_LIST1_UD) ) ( f, userdata, peek, __VA_ARGS__ )
+
+// Applies the function macro `f` to each of the remaining parameters, inserts commas between the results,
+// and passes userdata as the first parameter to each invocation,
+// e.g. CATCH_REC_LIST_UD(f, x, a, b, c) evaluates to f(x, a), f(x, b), f(x, c)
+#define CATCH_REC_LIST_UD(f, userdata, ...) CATCH_RECURSE(CATCH_REC_LIST2_UD(f, userdata, __VA_ARGS__, ()()(), ()()(), ()()(), 0))
+
+#define CATCH_REC_LIST(f, ...) CATCH_RECURSE(CATCH_REC_LIST2(f, __VA_ARGS__, ()()(), ()()(), ()()(), 0))
+
+#define INTERNAL_CATCH_EXPAND1(param) INTERNAL_CATCH_EXPAND2(param)
+#define INTERNAL_CATCH_EXPAND2(...) INTERNAL_CATCH_NO## __VA_ARGS__
+#define INTERNAL_CATCH_DEF(...) INTERNAL_CATCH_DEF __VA_ARGS__
+#define INTERNAL_CATCH_NOINTERNAL_CATCH_DEF
+#define INTERNAL_CATCH_STRINGIZE(...) INTERNAL_CATCH_STRINGIZE2(__VA_ARGS__)
+#ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
+#define INTERNAL_CATCH_STRINGIZE2(...) #__VA_ARGS__
+#define INTERNAL_CATCH_STRINGIZE_WITHOUT_PARENS(param) INTERNAL_CATCH_STRINGIZE(INTERNAL_CATCH_REMOVE_PARENS(param))
+#else
+// MSVC is adding extra space and needs another indirection to expand INTERNAL_CATCH_NOINTERNAL_CATCH_DEF
+#define INTERNAL_CATCH_STRINGIZE2(...) INTERNAL_CATCH_STRINGIZE3(__VA_ARGS__)
+#define INTERNAL_CATCH_STRINGIZE3(...) #__VA_ARGS__
+#define INTERNAL_CATCH_STRINGIZE_WITHOUT_PARENS(param) (INTERNAL_CATCH_STRINGIZE(INTERNAL_CATCH_REMOVE_PARENS(param)) + 1)
+#endif
+
+#define INTERNAL_CATCH_MAKE_NAMESPACE2(...) ns_##__VA_ARGS__
+#define INTERNAL_CATCH_MAKE_NAMESPACE(name) INTERNAL_CATCH_MAKE_NAMESPACE2(name)
+
+#define INTERNAL_CATCH_REMOVE_PARENS(...) INTERNAL_CATCH_EXPAND1(INTERNAL_CATCH_DEF __VA_ARGS__)
+
+#ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
+#define INTERNAL_CATCH_MAKE_TYPE_LIST2(...) decltype(get_wrapper<INTERNAL_CATCH_REMOVE_PARENS_GEN(__VA_ARGS__)>())
+#define INTERNAL_CATCH_MAKE_TYPE_LIST(...) INTERNAL_CATCH_MAKE_TYPE_LIST2(INTERNAL_CATCH_REMOVE_PARENS(__VA_ARGS__))
+#else
+#define INTERNAL_CATCH_MAKE_TYPE_LIST2(...) INTERNAL_CATCH_EXPAND_VARGS(decltype(get_wrapper<INTERNAL_CATCH_REMOVE_PARENS_GEN(__VA_ARGS__)>()))
+#define INTERNAL_CATCH_MAKE_TYPE_LIST(...) INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_MAKE_TYPE_LIST2(INTERNAL_CATCH_REMOVE_PARENS(__VA_ARGS__)))
+#endif
+
+#define INTERNAL_CATCH_MAKE_TYPE_LISTS_FROM_TYPES(...)\
+    CATCH_REC_LIST(INTERNAL_CATCH_MAKE_TYPE_LIST,__VA_ARGS__)
+
+#define INTERNAL_CATCH_REMOVE_PARENS_1_ARG(_0) INTERNAL_CATCH_REMOVE_PARENS(_0)
+#define INTERNAL_CATCH_REMOVE_PARENS_2_ARG(_0, _1) INTERNAL_CATCH_REMOVE_PARENS(_0), INTERNAL_CATCH_REMOVE_PARENS_1_ARG(_1)
+#define INTERNAL_CATCH_REMOVE_PARENS_3_ARG(_0, _1, _2) INTERNAL_CATCH_REMOVE_PARENS(_0), INTERNAL_CATCH_REMOVE_PARENS_2_ARG(_1, _2)
+#define INTERNAL_CATCH_REMOVE_PARENS_4_ARG(_0, _1, _2, _3) INTERNAL_CATCH_REMOVE_PARENS(_0), INTERNAL_CATCH_REMOVE_PARENS_3_ARG(_1, _2, _3)
+#define INTERNAL_CATCH_REMOVE_PARENS_5_ARG(_0, _1, _2, _3, _4) INTERNAL_CATCH_REMOVE_PARENS(_0), INTERNAL_CATCH_REMOVE_PARENS_4_ARG(_1, _2, _3, _4)
+#define INTERNAL_CATCH_REMOVE_PARENS_6_ARG(_0, _1, _2, _3, _4, _5) INTERNAL_CATCH_REMOVE_PARENS(_0), INTERNAL_CATCH_REMOVE_PARENS_5_ARG(_1, _2, _3, _4, _5)
+#define INTERNAL_CATCH_REMOVE_PARENS_7_ARG(_0, _1, _2, _3, _4, _5, _6) INTERNAL_CATCH_REMOVE_PARENS(_0), INTERNAL_CATCH_REMOVE_PARENS_6_ARG(_1, _2, _4, _5, _6)
+#define INTERNAL_CATCH_REMOVE_PARENS_8_ARG(_0, _1, _2, _3, _4, _5, _6, _7) INTERNAL_CATCH_REMOVE_PARENS(_0), INTERNAL_CATCH_REMOVE_PARENS_7_ARG(_1, _2, _3, _4, _5, _6, _7)
+#define INTERNAL_CATCH_REMOVE_PARENS_9_ARG(_0, _1, _2, _3, _4, _5, _6, _7, _8) INTERNAL_CATCH_REMOVE_PARENS(_0), INTERNAL_CATCH_REMOVE_PARENS_8_ARG(_1, _2, _3, _4, _5, _6, _7, _8)
+#define INTERNAL_CATCH_REMOVE_PARENS_10_ARG(_0, _1, _2, _3, _4, _5, _6, _7, _8, _9) INTERNAL_CATCH_REMOVE_PARENS(_0), INTERNAL_CATCH_REMOVE_PARENS_9_ARG(_1, _2, _3, _4, _5, _6, _7, _8, _9)
+#define INTERNAL_CATCH_REMOVE_PARENS_11_ARG(_0, _1, _2, _3, _4, _5, _6, _7, _8, _9, _10) INTERNAL_CATCH_REMOVE_PARENS(_0), INTERNAL_CATCH_REMOVE_PARENS_10_ARG(_1, _2, _3, _4, _5, _6, _7, _8, _9, _10)
+
+#define INTERNAL_CATCH_VA_NARGS_IMPL(_0, _1, _2, _3, _4, _5, _6, _7, _8, _9, _10, N, ...) N
+
+#define INTERNAL_CATCH_TYPE_GEN\
+    template<typename...> struct TypeList {};\
+    template<typename...Ts>\
+    constexpr auto get_wrapper() noexcept -> TypeList<Ts...> { return {}; }\
+    template<template<typename...> class...> struct TemplateTypeList{};\
+    template<template<typename...> class...Cs>\
+    constexpr auto get_wrapper() noexcept -> TemplateTypeList<Cs...> { return {}; }\
+    template<typename...>\
+    struct append;\
+    template<typename...>\
+    struct rewrap;\
+    template<template<typename...> class, typename...>\
+    struct create;\
+    template<template<typename...> class, typename>\
+    struct convert;\
+    \
+    template<typename T> \
+    struct append<T> { using type = T; };\
+    template< template<typename...> class L1, typename...E1, template<typename...> class L2, typename...E2, typename...Rest>\
+    struct append<L1<E1...>, L2<E2...>, Rest...> { using type = typename append<L1<E1...,E2...>, Rest...>::type; };\
+    template< template<typename...> class L1, typename...E1, typename...Rest>\
+    struct append<L1<E1...>, TypeList<mpl_::na>, Rest...> { using type = L1<E1...>; };\
+    \
+    template< template<typename...> class Container, template<typename...> class List, typename...elems>\
+    struct rewrap<TemplateTypeList<Container>, List<elems...>> { using type = TypeList<Container<elems...>>; };\
+    template< template<typename...> class Container, template<typename...> class List, class...Elems, typename...Elements>\
+    struct rewrap<TemplateTypeList<Container>, List<Elems...>, Elements...> { using type = typename append<TypeList<Container<Elems...>>, typename rewrap<TemplateTypeList<Container>, Elements...>::type>::type; };\
+    \
+    template<template <typename...> class Final, template< typename...> class...Containers, typename...Types>\
+    struct create<Final, TemplateTypeList<Containers...>, TypeList<Types...>> { using type = typename append<Final<>, typename rewrap<TemplateTypeList<Containers>, Types...>::type...>::type; };\
+    template<template <typename...> class Final, template <typename...> class List, typename...Ts>\
+    struct convert<Final, List<Ts...>> { using type = typename append<Final<>,TypeList<Ts>...>::type; };
+
+#define INTERNAL_CATCH_NTTP_1(signature, ...)\
+    template<INTERNAL_CATCH_REMOVE_PARENS(signature)> struct Nttp{};\
+    template<INTERNAL_CATCH_REMOVE_PARENS(signature)>\
+    constexpr auto get_wrapper() noexcept -> Nttp<__VA_ARGS__> { return {}; } \
+    template<template<INTERNAL_CATCH_REMOVE_PARENS(signature)> class...> struct NttpTemplateTypeList{};\
+    template<template<INTERNAL_CATCH_REMOVE_PARENS(signature)> class...Cs>\
+    constexpr auto get_wrapper() noexcept -> NttpTemplateTypeList<Cs...> { return {}; } \
+    \
+    template< template<INTERNAL_CATCH_REMOVE_PARENS(signature)> class Container, template<INTERNAL_CATCH_REMOVE_PARENS(signature)> class List, INTERNAL_CATCH_REMOVE_PARENS(signature)>\
+    struct rewrap<NttpTemplateTypeList<Container>, List<__VA_ARGS__>> { using type = TypeList<Container<__VA_ARGS__>>; };\
+    template< template<INTERNAL_CATCH_REMOVE_PARENS(signature)> class Container, template<INTERNAL_CATCH_REMOVE_PARENS(signature)> class List, INTERNAL_CATCH_REMOVE_PARENS(signature), typename...Elements>\
+    struct rewrap<NttpTemplateTypeList<Container>, List<__VA_ARGS__>, Elements...> { using type = typename append<TypeList<Container<__VA_ARGS__>>, typename rewrap<NttpTemplateTypeList<Container>, Elements...>::type>::type; };\
+    template<template <typename...> class Final, template<INTERNAL_CATCH_REMOVE_PARENS(signature)> class...Containers, typename...Types>\
+    struct create<Final, NttpTemplateTypeList<Containers...>, TypeList<Types...>> { using type = typename append<Final<>, typename rewrap<NttpTemplateTypeList<Containers>, Types...>::type...>::type; };
+
+#define INTERNAL_CATCH_DECLARE_SIG_TEST0(TestName)
+#define INTERNAL_CATCH_DECLARE_SIG_TEST1(TestName, signature)\
+    template<INTERNAL_CATCH_REMOVE_PARENS(signature)>\
+    static void TestName()
+#define INTERNAL_CATCH_DECLARE_SIG_TEST_X(TestName, signature, ...)\
+    template<INTERNAL_CATCH_REMOVE_PARENS(signature)>\
+    static void TestName()
+
+#define INTERNAL_CATCH_DEFINE_SIG_TEST0(TestName)
+#define INTERNAL_CATCH_DEFINE_SIG_TEST1(TestName, signature)\
+    template<INTERNAL_CATCH_REMOVE_PARENS(signature)>\
+    static void TestName()
+#define INTERNAL_CATCH_DEFINE_SIG_TEST_X(TestName, signature,...)\
+    template<INTERNAL_CATCH_REMOVE_PARENS(signature)>\
+    static void TestName()
+
+#define INTERNAL_CATCH_NTTP_REGISTER0(TestFunc, signature)\
+    template<typename Type>\
+    void reg_test(TypeList<Type>, Catch::NameAndTags nameAndTags)\
+    {\
+        Catch::AutoReg( Catch::makeTestInvoker(&TestFunc<Type>), CATCH_INTERNAL_LINEINFO, Catch::StringRef(), nameAndTags);\
+    }
+
+#define INTERNAL_CATCH_NTTP_REGISTER(TestFunc, signature, ...)\
+    template<INTERNAL_CATCH_REMOVE_PARENS(signature)>\
+    void reg_test(Nttp<__VA_ARGS__>, Catch::NameAndTags nameAndTags)\
+    {\
+        Catch::AutoReg( Catch::makeTestInvoker(&TestFunc<__VA_ARGS__>), CATCH_INTERNAL_LINEINFO, Catch::StringRef(), nameAndTags);\
+    }
+
+#define INTERNAL_CATCH_NTTP_REGISTER_METHOD0(TestName, signature, ...)\
+    template<typename Type>\
+    void reg_test(TypeList<Type>, Catch::StringRef className, Catch::NameAndTags nameAndTags)\
+    {\
+        Catch::AutoReg( Catch::makeTestInvoker(&TestName<Type>::test), CATCH_INTERNAL_LINEINFO, className, nameAndTags);\
+    }
+
+#define INTERNAL_CATCH_NTTP_REGISTER_METHOD(TestName, signature, ...)\
+    template<INTERNAL_CATCH_REMOVE_PARENS(signature)>\
+    void reg_test(Nttp<__VA_ARGS__>, Catch::StringRef className, Catch::NameAndTags nameAndTags)\
+    {\
+        Catch::AutoReg( Catch::makeTestInvoker(&TestName<__VA_ARGS__>::test), CATCH_INTERNAL_LINEINFO, className, nameAndTags);\
+    }
+
+#define INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD0(TestName, ClassName)
+#define INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD1(TestName, ClassName, signature)\
+    template<typename TestType> \
+    struct TestName : INTERNAL_CATCH_REMOVE_PARENS(ClassName)<TestType> { \
+        void test();\
+    }
+
+#define INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X(TestName, ClassName, signature, ...)\
+    template<INTERNAL_CATCH_REMOVE_PARENS(signature)> \
+    struct TestName : INTERNAL_CATCH_REMOVE_PARENS(ClassName)<__VA_ARGS__> { \
+        void test();\
+    }
+
+#define INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD0(TestName)
+#define INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD1(TestName, signature)\
+    template<typename TestType> \
+    void INTERNAL_CATCH_MAKE_NAMESPACE(TestName)::TestName<TestType>::test()
+#define INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X(TestName, signature, ...)\
+    template<INTERNAL_CATCH_REMOVE_PARENS(signature)> \
+    void INTERNAL_CATCH_MAKE_NAMESPACE(TestName)::TestName<__VA_ARGS__>::test()
+
+#ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
+#define INTERNAL_CATCH_NTTP_0
+#define INTERNAL_CATCH_NTTP_GEN(...) INTERNAL_CATCH_VA_NARGS_IMPL(__VA_ARGS__, INTERNAL_CATCH_NTTP_1(__VA_ARGS__), INTERNAL_CATCH_NTTP_1(__VA_ARGS__), INTERNAL_CATCH_NTTP_1(__VA_ARGS__), INTERNAL_CATCH_NTTP_1(__VA_ARGS__), INTERNAL_CATCH_NTTP_1(__VA_ARGS__), INTERNAL_CATCH_NTTP_1( __VA_ARGS__), INTERNAL_CATCH_NTTP_1( __VA_ARGS__), INTERNAL_CATCH_NTTP_1( __VA_ARGS__), INTERNAL_CATCH_NTTP_1( __VA_ARGS__),INTERNAL_CATCH_NTTP_1( __VA_ARGS__), INTERNAL_CATCH_NTTP_0)
+#define INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD(TestName, ...) INTERNAL_CATCH_VA_NARGS_IMPL( "dummy", __VA_ARGS__, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X,INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X,INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X,INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, INTERNAL_CATC [...]
+#define INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD(TestName, ClassName, ...) INTERNAL_CATCH_VA_NARGS_IMPL( "dummy", __VA_ARGS__, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X,INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X,INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X,INTERNAL_CATCH_DECLARE_SIG_TEST_ME [...]
+#define INTERNAL_CATCH_NTTP_REG_METHOD_GEN(TestName, ...) INTERNAL_CATCH_VA_NARGS_IMPL( "dummy", __VA_ARGS__, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD0, INTERNAL_CA [...]
+#define INTERNAL_CATCH_NTTP_REG_GEN(TestFunc, ...) INTERNAL_CATCH_VA_NARGS_IMPL( "dummy", __VA_ARGS__, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER0, INTERNAL_CATCH_NTTP_REGISTER0)(TestFunc, __VA_ARGS__)
+#define INTERNAL_CATCH_DEFINE_SIG_TEST(TestName, ...) INTERNAL_CATCH_VA_NARGS_IMPL( "dummy", __VA_ARGS__, INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X,INTERNAL_CATCH_DEFINE_SIG_TEST_X,INTERNAL_CATCH_DEFINE_SIG_TEST1, INTERNAL_CATCH_DEFINE_SIG_TEST0)(TestName, __VA_ARGS__)
+#define INTERNAL_CATCH_DECLARE_SIG_TEST(TestName, ...) INTERNAL_CATCH_VA_NARGS_IMPL( "dummy", __VA_ARGS__, INTERNAL_CATCH_DECLARE_SIG_TEST_X,INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X,INTERNAL_CATCH_DECLARE_SIG_TEST_X,INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DECLARE_SIG_TEST1, INTERNAL_CATCH_DECLARE_SIG_TEST0)(TestNa [...]
+#define INTERNAL_CATCH_REMOVE_PARENS_GEN(...) INTERNAL_CATCH_VA_NARGS_IMPL(__VA_ARGS__, INTERNAL_CATCH_REMOVE_PARENS_11_ARG,INTERNAL_CATCH_REMOVE_PARENS_10_ARG,INTERNAL_CATCH_REMOVE_PARENS_9_ARG,INTERNAL_CATCH_REMOVE_PARENS_8_ARG,INTERNAL_CATCH_REMOVE_PARENS_7_ARG,INTERNAL_CATCH_REMOVE_PARENS_6_ARG,INTERNAL_CATCH_REMOVE_PARENS_5_ARG,INTERNAL_CATCH_REMOVE_PARENS_4_ARG,INTERNAL_CATCH_REMOVE_PARENS_3_ARG,INTERNAL_CATCH_REMOVE_PARENS_2_ARG,INTERNAL_CATCH_REMOVE_PARENS_1_ARG)(__VA_ARGS__)
+#else
+#define INTERNAL_CATCH_NTTP_0(signature)
+#define INTERNAL_CATCH_NTTP_GEN(...) INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_VA_NARGS_IMPL(__VA_ARGS__, INTERNAL_CATCH_NTTP_1, INTERNAL_CATCH_NTTP_1, INTERNAL_CATCH_NTTP_1, INTERNAL_CATCH_NTTP_1, INTERNAL_CATCH_NTTP_1, INTERNAL_CATCH_NTTP_1, INTERNAL_CATCH_NTTP_1, INTERNAL_CATCH_NTTP_1, INTERNAL_CATCH_NTTP_1,INTERNAL_CATCH_NTTP_1, INTERNAL_CATCH_NTTP_0)( __VA_ARGS__))
+#define INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD(TestName, ...) INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_VA_NARGS_IMPL( "dummy", __VA_ARGS__, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X,INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X,INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X,INTERNAL_CATCH_DEFINE_SIG_ [...]
+#define INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD(TestName, ClassName, ...) INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_VA_NARGS_IMPL( "dummy", __VA_ARGS__, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X,INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X,INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X,INTERN [...]
+#define INTERNAL_CATCH_NTTP_REG_METHOD_GEN(TestName, ...) INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_VA_NARGS_IMPL( "dummy", __VA_ARGS__, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_REGISTER_METHOD, INTERNAL_CATCH_NTTP_R [...]
+#define INTERNAL_CATCH_NTTP_REG_GEN(TestFunc, ...) INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_VA_NARGS_IMPL( "dummy", __VA_ARGS__, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER0, INTERNAL_CATCH_NTTP_REGISTER0)(TestFunc, __VA_ARGS__))
+#define INTERNAL_CATCH_DEFINE_SIG_TEST(TestName, ...) INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_VA_NARGS_IMPL( "dummy", __VA_ARGS__, INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X,INTERNAL_CATCH_DEFINE_SIG_TEST_X,INTERNAL_CATCH_DEFINE_SIG_TEST1, INTERNAL_CATCH_DEFINE [...]
+#define INTERNAL_CATCH_DECLARE_SIG_TEST(TestName, ...) INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_VA_NARGS_IMPL( "dummy", __VA_ARGS__, INTERNAL_CATCH_DECLARE_SIG_TEST_X,INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X,INTERNAL_CATCH_DECLARE_SIG_TEST_X,INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DECLARE_SIG_TEST1, INTERNAL_CAT [...]
+#define INTERNAL_CATCH_REMOVE_PARENS_GEN(...) INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_VA_NARGS_IMPL(__VA_ARGS__, INTERNAL_CATCH_REMOVE_PARENS_11_ARG,INTERNAL_CATCH_REMOVE_PARENS_10_ARG,INTERNAL_CATCH_REMOVE_PARENS_9_ARG,INTERNAL_CATCH_REMOVE_PARENS_8_ARG,INTERNAL_CATCH_REMOVE_PARENS_7_ARG,INTERNAL_CATCH_REMOVE_PARENS_6_ARG,INTERNAL_CATCH_REMOVE_PARENS_5_ARG,INTERNAL_CATCH_REMOVE_PARENS_4_ARG,INTERNAL_CATCH_REMOVE_PARENS_3_ARG,INTERNAL_CATCH_REMOVE_PARENS_2_ARG,INTERNAL_CATCH_REMOVE_PA [...]
+#endif
+
+// end catch_preprocessor.hpp
+// start catch_meta.hpp
+
+
+#include <type_traits>
+
+namespace Catch {
+    template<typename T>
+    struct always_false : std::false_type {};
+
+    template <typename> struct true_given : std::true_type {};
+    struct is_callable_tester {
+        template <typename Fun, typename... Args>
+        true_given<decltype(std::declval<Fun>()(std::declval<Args>()...))> static test(int);
+        template <typename...>
+        std::false_type static test(...);
+    };
+
+    template <typename T>
+    struct is_callable;
+
+    template <typename Fun, typename... Args>
+    struct is_callable<Fun(Args...)> : decltype(is_callable_tester::test<Fun, Args...>(0)) {};
+
+#if defined(__cpp_lib_is_invocable) && __cpp_lib_is_invocable >= 201703
+    // std::result_of is deprecated in C++17 and removed in C++20. Hence, it is
+    // replaced with std::invoke_result here. Also *_t format is preferred over
+    // typename *::type format.
+    template <typename Func, typename U>
+    using FunctionReturnType = std::remove_reference_t<std::remove_cv_t<std::invoke_result_t<Func, U>>>;
+#else
+    template <typename Func, typename U>
+    using FunctionReturnType = typename std::remove_reference<typename std::remove_cv<typename std::result_of<Func(U)>::type>::type>::type;
+#endif
+
+} // namespace Catch
+
+namespace mpl_{
+    struct na;
+}
+
+// end catch_meta.hpp
 namespace Catch {
 
 template<typename C>
@@ -518,49 +972,348 @@ struct AutoReg : NonCopyable {
         static void TestName()
     #define INTERNAL_CATCH_TESTCASE_METHOD_NO_REGISTRATION( TestName, ClassName, ... ) \
         namespace{                        \
-            struct TestName : ClassName { \
+            struct TestName : INTERNAL_CATCH_REMOVE_PARENS(ClassName) { \
                 void test();              \
             };                            \
         }                                 \
         void TestName::test()
+    #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION_2( TestName, TestFunc, Name, Tags, Signature, ... )  \
+        INTERNAL_CATCH_DEFINE_SIG_TEST(TestFunc, INTERNAL_CATCH_REMOVE_PARENS(Signature))
+    #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION_2( TestNameClass, TestName, ClassName, Name, Tags, Signature, ... )    \
+        namespace{                                                                                  \
+            namespace INTERNAL_CATCH_MAKE_NAMESPACE(TestName) {                                      \
+            INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD(TestName, ClassName, INTERNAL_CATCH_REMOVE_PARENS(Signature));\
+        }                                                                                           \
+        }                                                                                           \
+        INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD(TestName, INTERNAL_CATCH_REMOVE_PARENS(Signature))
+
+    #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
+        #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION(Name, Tags, ...) \
+            INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION_2( INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____ ), INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____F_U_N_C____ ), Name, Tags, typename TestType, __VA_ARGS__ )
+    #else
+        #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION(Name, Tags, ...) \
+            INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION_2( INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____ ), INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____F_U_N_C____ ), Name, Tags, typename TestType, __VA_ARGS__ ) )
+    #endif
+
+    #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
+        #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG_NO_REGISTRATION(Name, Tags, Signature, ...) \
+            INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION_2( INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____ ), INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____F_U_N_C____ ), Name, Tags, Signature, __VA_ARGS__ )
+    #else
+        #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG_NO_REGISTRATION(Name, Tags, Signature, ...) \
+            INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION_2( INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____ ), INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____F_U_N_C____ ), Name, Tags, Signature, __VA_ARGS__ ) )
+    #endif
 
+    #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
+        #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION( ClassName, Name, Tags,... ) \
+            INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION_2( INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____C_L_A_S_S____ ), INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____ ) , ClassName, Name, Tags, typename T, __VA_ARGS__ )
+    #else
+        #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION( ClassName, Name, Tags,... ) \
+            INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION_2( INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____C_L_A_S_S____ ), INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____ ) , ClassName, Name, Tags, typename T, __VA_ARGS__ ) )
+    #endif
+
+    #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
+        #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG_NO_REGISTRATION( ClassName, Name, Tags, Signature, ... ) \
+            INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION_2( INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____C_L_A_S_S____ ), INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____ ) , ClassName, Name, Tags, Signature, __VA_ARGS__ )
+    #else
+        #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG_NO_REGISTRATION( ClassName, Name, Tags, Signature, ... ) \
+            INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION_2( INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____C_L_A_S_S____ ), INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____ ) , ClassName, Name, Tags, Signature, __VA_ARGS__ ) )
+    #endif
 #endif
 
     ///////////////////////////////////////////////////////////////////////////////
     #define INTERNAL_CATCH_TESTCASE2( TestName, ... ) \
         static void TestName(); \
+        CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
         CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
-        namespace{ Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME( autoRegistrar )( Catch::makeTestInvoker( &TestName ), CATCH_INTERNAL_LINEINFO, "", Catch::NameAndTags{ __VA_ARGS__ } ); } /* NOLINT */ \
-        CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS \
+        namespace{ Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME( autoRegistrar )( Catch::makeTestInvoker( &TestName ), CATCH_INTERNAL_LINEINFO, Catch::StringRef(), Catch::NameAndTags{ __VA_ARGS__ } ); } /* NOLINT */ \
+        CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION \
         static void TestName()
     #define INTERNAL_CATCH_TESTCASE( ... ) \
         INTERNAL_CATCH_TESTCASE2( INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ), __VA_ARGS__ )
 
     ///////////////////////////////////////////////////////////////////////////////
     #define INTERNAL_CATCH_METHOD_AS_TEST_CASE( QualifiedMethod, ... ) \
+        CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
         CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
         namespace{ Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME( autoRegistrar )( Catch::makeTestInvoker( &QualifiedMethod ), CATCH_INTERNAL_LINEINFO, "&" #QualifiedMethod, Catch::NameAndTags{ __VA_ARGS__ } ); } /* NOLINT */ \
-        CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS
+        CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION
 
     ///////////////////////////////////////////////////////////////////////////////
     #define INTERNAL_CATCH_TEST_CASE_METHOD2( TestName, ClassName, ... )\
+        CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
         CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
         namespace{ \
-            struct TestName : ClassName{ \
+            struct TestName : INTERNAL_CATCH_REMOVE_PARENS(ClassName) { \
                 void test(); \
             }; \
             Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME( autoRegistrar ) ( Catch::makeTestInvoker( &TestName::test ), CATCH_INTERNAL_LINEINFO, #ClassName, Catch::NameAndTags{ __VA_ARGS__ } ); /* NOLINT */ \
         } \
-        CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS \
+        CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION \
         void TestName::test()
     #define INTERNAL_CATCH_TEST_CASE_METHOD( ClassName, ... ) \
         INTERNAL_CATCH_TEST_CASE_METHOD2( INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ), ClassName, __VA_ARGS__ )
 
     ///////////////////////////////////////////////////////////////////////////////
     #define INTERNAL_CATCH_REGISTER_TESTCASE( Function, ... ) \
+        CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
+        CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
+        Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME( autoRegistrar )( Catch::makeTestInvoker( Function ), CATCH_INTERNAL_LINEINFO, Catch::StringRef(), Catch::NameAndTags{ __VA_ARGS__ } ); /* NOLINT */ \
+        CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION
+
+    ///////////////////////////////////////////////////////////////////////////////
+    #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_2(TestName, TestFunc, Name, Tags, Signature, ... )\
+        CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
+        CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
+        CATCH_INTERNAL_SUPPRESS_ZERO_VARIADIC_WARNINGS \
+        CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS \
+        INTERNAL_CATCH_DECLARE_SIG_TEST(TestFunc, INTERNAL_CATCH_REMOVE_PARENS(Signature));\
+        namespace {\
+        namespace INTERNAL_CATCH_MAKE_NAMESPACE(TestName){\
+            INTERNAL_CATCH_TYPE_GEN\
+            INTERNAL_CATCH_NTTP_GEN(INTERNAL_CATCH_REMOVE_PARENS(Signature))\
+            INTERNAL_CATCH_NTTP_REG_GEN(TestFunc,INTERNAL_CATCH_REMOVE_PARENS(Signature))\
+            template<typename...Types> \
+            struct TestName{\
+                TestName(){\
+                    int index = 0;                                    \
+                    constexpr char const* tmpl_types[] = {CATCH_REC_LIST(INTERNAL_CATCH_STRINGIZE_WITHOUT_PARENS, __VA_ARGS__)};\
+                    using expander = int[];\
+                    (void)expander{(reg_test(Types{}, Catch::NameAndTags{ Name " - " + std::string(tmpl_types[index]), Tags } ), index++, 0)... };/* NOLINT */ \
+                }\
+            };\
+            static int INTERNAL_CATCH_UNIQUE_NAME( globalRegistrar ) = [](){\
+            TestName<INTERNAL_CATCH_MAKE_TYPE_LISTS_FROM_TYPES(__VA_ARGS__)>();\
+            return 0;\
+        }();\
+        }\
+        }\
+        CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION \
+        INTERNAL_CATCH_DEFINE_SIG_TEST(TestFunc,INTERNAL_CATCH_REMOVE_PARENS(Signature))
+
+#ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
+    #define INTERNAL_CATCH_TEMPLATE_TEST_CASE(Name, Tags, ...) \
+        INTERNAL_CATCH_TEMPLATE_TEST_CASE_2( INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____ ), INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____F_U_N_C____ ), Name, Tags, typename TestType, __VA_ARGS__ )
+#else
+    #define INTERNAL_CATCH_TEMPLATE_TEST_CASE(Name, Tags, ...) \
+        INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_2( INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____ ), INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____F_U_N_C____ ), Name, Tags, typename TestType, __VA_ARGS__ ) )
+#endif
+
+#ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
+    #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG(Name, Tags, Signature, ...) \
+        INTERNAL_CATCH_TEMPLATE_TEST_CASE_2( INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____ ), INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____F_U_N_C____ ), Name, Tags, Signature, __VA_ARGS__ )
+#else
+    #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG(Name, Tags, Signature, ...) \
+        INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_2( INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____ ), INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____F_U_N_C____ ), Name, Tags, Signature, __VA_ARGS__ ) )
+#endif
+
+    #define INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE2(TestName, TestFuncName, Name, Tags, Signature, TmplTypes, TypesList) \
+        CATCH_INTERNAL_START_WARNINGS_SUPPRESSION                      \
+        CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS                      \
+        CATCH_INTERNAL_SUPPRESS_ZERO_VARIADIC_WARNINGS                \
+        CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS              \
+        template<typename TestType> static void TestFuncName();       \
+        namespace {\
+        namespace INTERNAL_CATCH_MAKE_NAMESPACE(TestName) {                                     \
+            INTERNAL_CATCH_TYPE_GEN                                                  \
+            INTERNAL_CATCH_NTTP_GEN(INTERNAL_CATCH_REMOVE_PARENS(Signature))         \
+            template<typename... Types>                               \
+            struct TestName {                                         \
+                void reg_tests() {                                          \
+                    int index = 0;                                    \
+                    using expander = int[];                           \
+                    constexpr char const* tmpl_types[] = {CATCH_REC_LIST(INTERNAL_CATCH_STRINGIZE_WITHOUT_PARENS, INTERNAL_CATCH_REMOVE_PARENS(TmplTypes))};\
+                    constexpr char const* types_list[] = {CATCH_REC_LIST(INTERNAL_CATCH_STRINGIZE_WITHOUT_PARENS, INTERNAL_CATCH_REMOVE_PARENS(TypesList))};\
+                    constexpr auto num_types = sizeof(types_list) / sizeof(types_list[0]);\
+                    (void)expander{(Catch::AutoReg( Catch::makeTestInvoker( &TestFuncName<Types> ), CATCH_INTERNAL_LINEINFO, Catch::StringRef(), Catch::NameAndTags{ Name " - " + std::string(tmpl_types[index / num_types]) + "<" + std::string(types_list[index % num_types]) + ">", Tags } ), index++, 0)... };/* NOLINT */\
+                }                                                     \
+            };                                                        \
+            static int INTERNAL_CATCH_UNIQUE_NAME( globalRegistrar ) = [](){ \
+                using TestInit = typename create<TestName, decltype(get_wrapper<INTERNAL_CATCH_REMOVE_PARENS(TmplTypes)>()), TypeList<INTERNAL_CATCH_MAKE_TYPE_LISTS_FROM_TYPES(INTERNAL_CATCH_REMOVE_PARENS(TypesList))>>::type; \
+                TestInit t;                                           \
+                t.reg_tests();                                        \
+                return 0;                                             \
+            }();                                                      \
+        }                                                             \
+        }                                                             \
+        CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION                       \
+        template<typename TestType>                                   \
+        static void TestFuncName()
+
+#ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
+    #define INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE(Name, Tags, ...)\
+        INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE2(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____ ), INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____F_U_N_C____ ), Name, Tags, typename T,__VA_ARGS__)
+#else
+    #define INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE(Name, Tags, ...)\
+        INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE2( INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____ ), INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____F_U_N_C____ ), Name, Tags, typename T, __VA_ARGS__ ) )
+#endif
+
+#ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
+    #define INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_SIG(Name, Tags, Signature, ...)\
+        INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE2(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____ ), INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____F_U_N_C____ ), Name, Tags, Signature, __VA_ARGS__)
+#else
+    #define INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_SIG(Name, Tags, Signature, ...)\
+        INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE2( INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____ ), INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____F_U_N_C____ ), Name, Tags, Signature, __VA_ARGS__ ) )
+#endif
+
+    #define INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE_2(TestName, TestFunc, Name, Tags, TmplList)\
+        CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
+        CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
+        CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS \
+        template<typename TestType> static void TestFunc();       \
+        namespace {\
+        namespace INTERNAL_CATCH_MAKE_NAMESPACE(TestName){\
+        INTERNAL_CATCH_TYPE_GEN\
+        template<typename... Types>                               \
+        struct TestName {                                         \
+            void reg_tests() {                                          \
+                int index = 0;                                    \
+                using expander = int[];                           \
+                (void)expander{(Catch::AutoReg( Catch::makeTestInvoker( &TestFunc<Types> ), CATCH_INTERNAL_LINEINFO, Catch::StringRef(), Catch::NameAndTags{ Name " - " + std::string(INTERNAL_CATCH_STRINGIZE(TmplList)) + " - " + std::to_string(index), Tags } ), index++, 0)... };/* NOLINT */\
+            }                                                     \
+        };\
+        static int INTERNAL_CATCH_UNIQUE_NAME( globalRegistrar ) = [](){ \
+                using TestInit = typename convert<TestName, TmplList>::type; \
+                TestInit t;                                           \
+                t.reg_tests();                                        \
+                return 0;                                             \
+            }();                                                      \
+        }}\
+        CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION                       \
+        template<typename TestType>                                   \
+        static void TestFunc()
+
+    #define INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE(Name, Tags, TmplList) \
+        INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE_2( INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____ ), INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____F_U_N_C____ ), Name, Tags, TmplList )
+
+    #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_2( TestNameClass, TestName, ClassName, Name, Tags, Signature, ... ) \
+        CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
+        CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
+        CATCH_INTERNAL_SUPPRESS_ZERO_VARIADIC_WARNINGS \
+        CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS \
+        namespace {\
+        namespace INTERNAL_CATCH_MAKE_NAMESPACE(TestName){ \
+            INTERNAL_CATCH_TYPE_GEN\
+            INTERNAL_CATCH_NTTP_GEN(INTERNAL_CATCH_REMOVE_PARENS(Signature))\
+            INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD(TestName, ClassName, INTERNAL_CATCH_REMOVE_PARENS(Signature));\
+            INTERNAL_CATCH_NTTP_REG_METHOD_GEN(TestName, INTERNAL_CATCH_REMOVE_PARENS(Signature))\
+            template<typename...Types> \
+            struct TestNameClass{\
+                TestNameClass(){\
+                    int index = 0;                                    \
+                    constexpr char const* tmpl_types[] = {CATCH_REC_LIST(INTERNAL_CATCH_STRINGIZE_WITHOUT_PARENS, __VA_ARGS__)};\
+                    using expander = int[];\
+                    (void)expander{(reg_test(Types{}, #ClassName, Catch::NameAndTags{ Name " - " + std::string(tmpl_types[index]), Tags } ), index++, 0)... };/* NOLINT */ \
+                }\
+            };\
+            static int INTERNAL_CATCH_UNIQUE_NAME( globalRegistrar ) = [](){\
+                TestNameClass<INTERNAL_CATCH_MAKE_TYPE_LISTS_FROM_TYPES(__VA_ARGS__)>();\
+                return 0;\
+        }();\
+        }\
+        }\
+        CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION \
+        INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD(TestName, INTERNAL_CATCH_REMOVE_PARENS(Signature))
+
+#ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
+    #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD( ClassName, Name, Tags,... ) \
+        INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_2( INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____C_L_A_S_S____ ), INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____ ) , ClassName, Name, Tags, typename T, __VA_ARGS__ )
+#else
+    #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD( ClassName, Name, Tags,... ) \
+        INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_2( INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____C_L_A_S_S____ ), INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____ ) , ClassName, Name, Tags, typename T, __VA_ARGS__ ) )
+#endif
+
+#ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
+    #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG( ClassName, Name, Tags, Signature, ... ) \
+        INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_2( INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____C_L_A_S_S____ ), INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____ ) , ClassName, Name, Tags, Signature, __VA_ARGS__ )
+#else
+    #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG( ClassName, Name, Tags, Signature, ... ) \
+        INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_2( INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____C_L_A_S_S____ ), INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____ ) , ClassName, Name, Tags, Signature, __VA_ARGS__ ) )
+#endif
+
+    #define INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_2(TestNameClass, TestName, ClassName, Name, Tags, Signature, TmplTypes, TypesList)\
+        CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
+        CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
+        CATCH_INTERNAL_SUPPRESS_ZERO_VARIADIC_WARNINGS \
+        CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS \
+        template<typename TestType> \
+            struct TestName : INTERNAL_CATCH_REMOVE_PARENS(ClassName <TestType>) { \
+                void test();\
+            };\
+        namespace {\
+        namespace INTERNAL_CATCH_MAKE_NAMESPACE(TestNameClass) {\
+            INTERNAL_CATCH_TYPE_GEN                  \
+            INTERNAL_CATCH_NTTP_GEN(INTERNAL_CATCH_REMOVE_PARENS(Signature))\
+            template<typename...Types>\
+            struct TestNameClass{\
+                void reg_tests(){\
+                    int index = 0;\
+                    using expander = int[];\
+                    constexpr char const* tmpl_types[] = {CATCH_REC_LIST(INTERNAL_CATCH_STRINGIZE_WITHOUT_PARENS, INTERNAL_CATCH_REMOVE_PARENS(TmplTypes))};\
+                    constexpr char const* types_list[] = {CATCH_REC_LIST(INTERNAL_CATCH_STRINGIZE_WITHOUT_PARENS, INTERNAL_CATCH_REMOVE_PARENS(TypesList))};\
+                    constexpr auto num_types = sizeof(types_list) / sizeof(types_list[0]);\
+                    (void)expander{(Catch::AutoReg( Catch::makeTestInvoker( &TestName<Types>::test ), CATCH_INTERNAL_LINEINFO, #ClassName, Catch::NameAndTags{ Name " - " + std::string(tmpl_types[index / num_types]) + "<" + std::string(types_list[index % num_types]) + ">", Tags } ), index++, 0)... };/* NOLINT */ \
+                }\
+            };\
+            static int INTERNAL_CATCH_UNIQUE_NAME( globalRegistrar ) = [](){\
+                using TestInit = typename create<TestNameClass, decltype(get_wrapper<INTERNAL_CATCH_REMOVE_PARENS(TmplTypes)>()), TypeList<INTERNAL_CATCH_MAKE_TYPE_LISTS_FROM_TYPES(INTERNAL_CATCH_REMOVE_PARENS(TypesList))>>::type;\
+                TestInit t;\
+                t.reg_tests();\
+                return 0;\
+            }(); \
+        }\
+        }\
+        CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION \
+        template<typename TestType> \
+        void TestName<TestType>::test()
+
+#ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
+    #define INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD( ClassName, Name, Tags, ... )\
+        INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_2( INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____ ), INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____F_U_N_C____ ), ClassName, Name, Tags, typename T, __VA_ARGS__ )
+#else
+    #define INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD( ClassName, Name, Tags, ... )\
+        INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_2( INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____ ), INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____F_U_N_C____ ), ClassName, Name, Tags, typename T,__VA_ARGS__ ) )
+#endif
+
+#ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
+    #define INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_SIG( ClassName, Name, Tags, Signature, ... )\
+        INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_2( INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____ ), INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____F_U_N_C____ ), ClassName, Name, Tags, Signature, __VA_ARGS__ )
+#else
+    #define INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_SIG( ClassName, Name, Tags, Signature, ... )\
+        INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_2( INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____ ), INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____F_U_N_C____ ), ClassName, Name, Tags, Signature,__VA_ARGS__ ) )
+#endif
+
+    #define INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE_METHOD_2( TestNameClass, TestName, ClassName, Name, Tags, TmplList) \
+        CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
         CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
-        Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME( autoRegistrar )( Catch::makeTestInvoker( Function ), CATCH_INTERNAL_LINEINFO, "", Catch::NameAndTags{ __VA_ARGS__ } ); /* NOLINT */ \
-        CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS
+        CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS \
+        template<typename TestType> \
+        struct TestName : INTERNAL_CATCH_REMOVE_PARENS(ClassName <TestType>) { \
+            void test();\
+        };\
+        namespace {\
+        namespace INTERNAL_CATCH_MAKE_NAMESPACE(TestName){ \
+            INTERNAL_CATCH_TYPE_GEN\
+            template<typename...Types>\
+            struct TestNameClass{\
+                void reg_tests(){\
+                    int index = 0;\
+                    using expander = int[];\
+                    (void)expander{(Catch::AutoReg( Catch::makeTestInvoker( &TestName<Types>::test ), CATCH_INTERNAL_LINEINFO, #ClassName, Catch::NameAndTags{ Name " - " + std::string(INTERNAL_CATCH_STRINGIZE(TmplList)) + " - " + std::to_string(index), Tags } ), index++, 0)... };/* NOLINT */ \
+                }\
+            };\
+            static int INTERNAL_CATCH_UNIQUE_NAME( globalRegistrar ) = [](){\
+                using TestInit = typename convert<TestNameClass, TmplList>::type;\
+                TestInit t;\
+                t.reg_tests();\
+                return 0;\
+            }(); \
+        }}\
+        CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION \
+        template<typename TestType> \
+        void TestName<TestType>::test()
+
+#define INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE_METHOD(ClassName, Name, Tags, TmplList) \
+        INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE_METHOD_2( INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____ ), INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____F_U_N_C____ ), ClassName, Name, Tags, TmplList )
 
 // end catch_test_registry.h
 // start catch_capture.hpp
@@ -661,7 +1414,7 @@ namespace Catch {
 
     auto makeStream( StringRef const &filename ) -> IStream const*;
 
-    class ReusableStringStream {
+    class ReusableStringStream : NonCopyable {
         std::size_t m_index;
         std::ostream* m_oss;
     public:
@@ -676,12 +1429,50 @@ namespace Catch {
             return *this;
         }
         auto get() -> std::ostream& { return *m_oss; }
-
-        static void cleanup();
     };
 }
 
 // end catch_stream.h
+// start catch_interfaces_enum_values_registry.h
+
+#include <vector>
+
+namespace Catch {
+
+    namespace Detail {
+        struct EnumInfo {
+            StringRef m_name;
+            std::vector<std::pair<int, StringRef>> m_values;
+
+            ~EnumInfo();
+
+            StringRef lookup( int value ) const;
+        };
+    } // namespace Detail
+
+    struct IMutableEnumValuesRegistry {
+        virtual ~IMutableEnumValuesRegistry();
+
+        virtual Detail::EnumInfo const& registerEnum( StringRef enumName, StringRef allEnums, std::vector<int> const& values ) = 0;
+
+        template<typename E>
+        Detail::EnumInfo const& registerEnum( StringRef enumName, StringRef allEnums, std::initializer_list<E> values ) {
+            static_assert(sizeof(int) >= sizeof(E), "Cannot serialize enum to int");
+            std::vector<int> intValues;
+            intValues.reserve( values.size() );
+            for( auto enumValue : values )
+                intValues.push_back( static_cast<int>( enumValue ) );
+            return registerEnum( enumName, allEnums, intValues );
+        }
+    };
+
+} // Catch
+
+// end catch_interfaces_enum_values_registry.h
+
+#ifdef CATCH_CONFIG_CPP17_STRING_VIEW
+#include <string_view>
+#endif
 
 #ifdef __OBJC__
 // start catch_objc_arc.hpp
@@ -734,14 +1525,7 @@ inline id performOptionalSelector( id obj, SEL sel ) {
 #pragma warning(disable:4180) // We attempt to stream a function (address) by const&, which MSVC complains about but is harmless
 #endif
 
-// We need a dummy global operator<< so we can bring it into Catch namespace later
-struct Catch_global_namespace_dummy {};
-std::ostream& operator<<(std::ostream&, Catch_global_namespace_dummy);
-
 namespace Catch {
-    // Bring in operator<< from global namespace into Catch namespace
-    using ::operator<<;
-
     namespace Detail {
 
         extern const std::string unprintableString;
@@ -755,9 +1539,9 @@ namespace Catch {
 
         template<typename T>
         class IsStreamInsertable {
-            template<typename SS, typename TT>
+            template<typename Stream, typename U>
             static auto test(int)
-                -> decltype(std::declval<SS&>() << std::declval<TT>(), std::true_type());
+                -> decltype(std::declval<Stream&>() << std::declval<U>(), std::true_type());
 
             template<typename, typename>
             static auto test(...)->std::false_type;
@@ -770,16 +1554,22 @@ namespace Catch {
         std::string convertUnknownEnumToString( E e );
 
         template<typename T>
-        typename std::enable_if<!std::is_enum<T>::value, std::string>::type convertUnstreamable( T const& value ) {
-#if !defined(CATCH_CONFIG_FALLBACK_STRINGIFIER)
-            (void)value;
+        typename std::enable_if<
+            !std::is_enum<T>::value && !std::is_base_of<std::exception, T>::value,
+        std::string>::type convertUnstreamable( T const& ) {
             return Detail::unprintableString;
-#else
-            return CATCH_CONFIG_FALLBACK_STRINGIFIER(value);
-#endif
         }
         template<typename T>
-        typename std::enable_if<std::is_enum<T>::value, std::string>::type convertUnstreamable( T const& value ) {
+        typename std::enable_if<
+            !std::is_enum<T>::value && std::is_base_of<std::exception, T>::value,
+         std::string>::type convertUnstreamable(T const& ex) {
+            return ex.what();
+        }
+
+        template<typename T>
+        typename std::enable_if<
+            std::is_enum<T>::value
+        , std::string>::type convertUnstreamable( T const& value ) {
             return convertUnknownEnumToString( value );
         }
 
@@ -805,7 +1595,9 @@ namespace Catch {
         typename std::enable_if<::Catch::Detail::IsStreamInsertable<Fake>::value, std::string>::type
             convert(const Fake& value) {
                 ReusableStringStream rss;
-                rss << value;
+                // NB: call using the function-like syntax to avoid ambiguity with
+                // user-defined templated operator<< under clang.
+                rss.operator<<(value);
                 return rss.str();
         }
 
@@ -813,7 +1605,11 @@ namespace Catch {
         static
         typename std::enable_if<!::Catch::Detail::IsStreamInsertable<Fake>::value, std::string>::type
             convert( const Fake& value ) {
-                return Detail::convertUnstreamable( value );
+#if !defined(CATCH_CONFIG_FALLBACK_STRINGIFIER)
+            return Detail::convertUnstreamable(value);
+#else
+            return CATCH_CONFIG_FALLBACK_STRINGIFIER(value);
+#endif
         }
     };
 
@@ -846,10 +1642,11 @@ namespace Catch {
     struct StringMaker<std::string> {
         static std::string convert(const std::string& str);
     };
-#ifdef CATCH_CONFIG_WCHAR
+
+#ifdef CATCH_CONFIG_CPP17_STRING_VIEW
     template<>
-    struct StringMaker<std::wstring> {
-        static std::string convert(const std::wstring& wstr);
+    struct StringMaker<std::string_view> {
+        static std::string convert(std::string_view str);
     };
 #endif
 
@@ -864,6 +1661,18 @@ namespace Catch {
 
 #ifdef CATCH_CONFIG_WCHAR
     template<>
+    struct StringMaker<std::wstring> {
+        static std::string convert(const std::wstring& wstr);
+    };
+
+# ifdef CATCH_CONFIG_CPP17_STRING_VIEW
+    template<>
+    struct StringMaker<std::wstring_view> {
+        static std::string convert(std::wstring_view str);
+    };
+# endif
+
+    template<>
     struct StringMaker<wchar_t const *> {
         static std::string convert(wchar_t const * str);
     };
@@ -894,6 +1703,12 @@ namespace Catch {
         }
     };
 
+#if defined(CATCH_CONFIG_CPP17_BYTE)
+    template<>
+    struct StringMaker<std::byte> {
+        static std::string convert(std::byte value);
+    };
+#endif // defined(CATCH_CONFIG_CPP17_BYTE)
     template<>
     struct StringMaker<int> {
         static std::string convert(int value);
@@ -945,10 +1760,13 @@ namespace Catch {
     template<>
     struct StringMaker<float> {
         static std::string convert(float value);
+        static int precision;
     };
+
     template<>
     struct StringMaker<double> {
         static std::string convert(double value);
+        static int precision;
     };
 
     template <typename T>
@@ -1031,7 +1849,9 @@ namespace Catch {
 #if defined(CATCH_CONFIG_ENABLE_ALL_STRINGMAKERS)
 #  define CATCH_CONFIG_ENABLE_PAIR_STRINGMAKER
 #  define CATCH_CONFIG_ENABLE_TUPLE_STRINGMAKER
+#  define CATCH_CONFIG_ENABLE_VARIANT_STRINGMAKER
 #  define CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER
+#  define CATCH_CONFIG_ENABLE_OPTIONAL_STRINGMAKER
 #endif
 
 // Separate std::pair specialization
@@ -1053,6 +1873,24 @@ namespace Catch {
 }
 #endif // CATCH_CONFIG_ENABLE_PAIR_STRINGMAKER
 
+#if defined(CATCH_CONFIG_ENABLE_OPTIONAL_STRINGMAKER) && defined(CATCH_CONFIG_CPP17_OPTIONAL)
+#include <optional>
+namespace Catch {
+    template<typename T>
+    struct StringMaker<std::optional<T> > {
+        static std::string convert(const std::optional<T>& optional) {
+            ReusableStringStream rss;
+            if (optional.has_value()) {
+                rss << ::Catch::Detail::stringify(*optional);
+            } else {
+                rss << "{ }";
+            }
+            return rss.str();
+        }
+    };
+}
+#endif // CATCH_CONFIG_ENABLE_OPTIONAL_STRINGMAKER
+
 // Separate std::tuple specialization
 #if defined(CATCH_CONFIG_ENABLE_TUPLE_STRINGMAKER)
 #include <tuple>
@@ -1094,12 +1932,40 @@ namespace Catch {
 }
 #endif // CATCH_CONFIG_ENABLE_TUPLE_STRINGMAKER
 
+#if defined(CATCH_CONFIG_ENABLE_VARIANT_STRINGMAKER) && defined(CATCH_CONFIG_CPP17_VARIANT)
+#include <variant>
 namespace Catch {
-    struct not_this_one {}; // Tag type for detecting which begin/ end are being selected
+    template<>
+    struct StringMaker<std::monostate> {
+        static std::string convert(const std::monostate&) {
+            return "{ }";
+        }
+    };
 
-    // Import begin/ end from std here so they are considered alongside the fallback (...) overloads in this namespace
-    using std::begin;
-    using std::end;
+    template<typename... Elements>
+    struct StringMaker<std::variant<Elements...>> {
+        static std::string convert(const std::variant<Elements...>& variant) {
+            if (variant.valueless_by_exception()) {
+                return "{valueless variant}";
+            } else {
+                return std::visit(
+                    [](const auto& value) {
+                        return ::Catch::Detail::stringify(value);
+                    },
+                    variant
+                );
+            }
+        }
+    };
+}
+#endif // CATCH_CONFIG_ENABLE_VARIANT_STRINGMAKER
+
+namespace Catch {
+    struct not_this_one {}; // Tag type for detecting which begin/ end are being selected
+
+    // Import begin/ end from std here so they are considered alongside the fallback (...) overloads in this namespace
+    using std::begin;
+    using std::end;
 
     not_this_one begin( ... );
     not_this_one end( ... );
@@ -1273,6 +2139,18 @@ struct ratio_string<std::milli> {
 }
 #endif // CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER
 
+#define INTERNAL_CATCH_REGISTER_ENUM( enumName, ... ) \
+namespace Catch { \
+    template<> struct StringMaker<enumName> { \
+        static std::string convert( enumName value ) { \
+            static const auto& enumInfo = ::Catch::getMutableRegistryHub().getMutableEnumValuesRegistry().registerEnum( #enumName, #__VA_ARGS__, { __VA_ARGS__ } ); \
+            return static_cast<std::string>(enumInfo.lookup( static_cast<int>( value ) )); \
+        } \
+    }; \
+}
+
+#define CATCH_REGISTER_ENUM( enumName, ... ) INTERNAL_CATCH_REGISTER_ENUM( enumName, __VA_ARGS__ )
+
 #ifdef _MSC_VER
 #pragma warning(pop)
 #endif
@@ -1286,6 +2164,7 @@ struct ratio_string<std::milli> {
 #pragma warning(disable:4018) // more "signed/unsigned mismatch"
 #pragma warning(disable:4312) // Converting int to T* using reinterpret_cast (issue on x64 platform)
 #pragma warning(disable:4180) // qualifier applied to function type has no meaning
+#pragma warning(disable:4800) // Forcing result to true or false
 #endif
 
 namespace Catch {
@@ -1329,6 +2208,62 @@ namespace Catch {
             m_op( op ),
             m_rhs( rhs )
         {}
+
+        template<typename T>
+        auto operator && ( T ) const -> BinaryExpr<LhsT, RhsT const&> const {
+            static_assert(always_false<T>::value,
+            "chained comparisons are not supported inside assertions, "
+            "wrap the expression inside parentheses, or decompose it");
+        }
+
+        template<typename T>
+        auto operator || ( T ) const -> BinaryExpr<LhsT, RhsT const&> const {
+            static_assert(always_false<T>::value,
+            "chained comparisons are not supported inside assertions, "
+            "wrap the expression inside parentheses, or decompose it");
+        }
+
+        template<typename T>
+        auto operator == ( T ) const -> BinaryExpr<LhsT, RhsT const&> const {
+            static_assert(always_false<T>::value,
+            "chained comparisons are not supported inside assertions, "
+            "wrap the expression inside parentheses, or decompose it");
+        }
+
+        template<typename T>
+        auto operator != ( T ) const -> BinaryExpr<LhsT, RhsT const&> const {
+            static_assert(always_false<T>::value,
+            "chained comparisons are not supported inside assertions, "
+            "wrap the expression inside parentheses, or decompose it");
+        }
+
+        template<typename T>
+        auto operator > ( T ) const -> BinaryExpr<LhsT, RhsT const&> const {
+            static_assert(always_false<T>::value,
+            "chained comparisons are not supported inside assertions, "
+            "wrap the expression inside parentheses, or decompose it");
+        }
+
+        template<typename T>
+        auto operator < ( T ) const -> BinaryExpr<LhsT, RhsT const&> const {
+            static_assert(always_false<T>::value,
+            "chained comparisons are not supported inside assertions, "
+            "wrap the expression inside parentheses, or decompose it");
+        }
+
+        template<typename T>
+        auto operator >= ( T ) const -> BinaryExpr<LhsT, RhsT const&> const {
+            static_assert(always_false<T>::value,
+            "chained comparisons are not supported inside assertions, "
+            "wrap the expression inside parentheses, or decompose it");
+        }
+
+        template<typename T>
+        auto operator <= ( T ) const -> BinaryExpr<LhsT, RhsT const&> const {
+            static_assert(always_false<T>::value,
+            "chained comparisons are not supported inside assertions, "
+            "wrap the expression inside parentheses, or decompose it");
+        }
     };
 
     template<typename LhsT>
@@ -1341,7 +2276,7 @@ namespace Catch {
 
     public:
         explicit UnaryExpr( LhsT lhs )
-        :   ITransientExpression{ false, lhs ? true : false },
+        :   ITransientExpression{ false, static_cast<bool>(lhs) },
             m_lhs( lhs )
         {}
     };
@@ -1408,6 +2343,20 @@ namespace Catch {
             return { static_cast<bool>(m_lhs <= rhs), m_lhs, "<=", rhs };
         }
 
+        template<typename RhsT>
+        auto operator && ( RhsT const& ) -> BinaryExpr<LhsT, RhsT const&> const {
+            static_assert(always_false<RhsT>::value,
+            "operator&& is not supported inside assertions, "
+            "wrap the expression inside parentheses, or decompose it");
+        }
+
+        template<typename RhsT>
+        auto operator || ( RhsT const& ) -> BinaryExpr<LhsT, RhsT const&> const {
+            static_assert(always_false<RhsT>::value,
+            "operator|| is not supported inside assertions, "
+            "wrap the expression inside parentheses, or decompose it");
+        }
+
         auto makeUnaryExpr() const -> UnaryExpr<LhsT> {
             return UnaryExpr<LhsT>{ m_lhs };
         }
@@ -1441,6 +2390,7 @@ namespace Catch {
 // start catch_interfaces_capture.h
 
 #include <string>
+#include <chrono>
 
 namespace Catch {
 
@@ -1449,12 +2399,19 @@ namespace Catch {
     struct SectionInfo;
     struct SectionEndInfo;
     struct MessageInfo;
+    struct MessageBuilder;
     struct Counts;
-    struct BenchmarkInfo;
-    struct BenchmarkStats;
     struct AssertionReaction;
+    struct SourceLineInfo;
 
     struct ITransientExpression;
+    struct IGeneratorTracker;
+
+#if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
+    struct BenchmarkInfo;
+    template <typename Duration = std::chrono::duration<double, std::nano>>
+    struct BenchmarkStats;
+#endif // CATCH_CONFIG_ENABLE_BENCHMARKING
 
     struct IResultCapture {
 
@@ -1465,12 +2422,20 @@ namespace Catch {
         virtual void sectionEnded( SectionEndInfo const& endInfo ) = 0;
         virtual void sectionEndedEarly( SectionEndInfo const& endInfo ) = 0;
 
+        virtual auto acquireGeneratorTracker( SourceLineInfo const& lineInfo ) -> IGeneratorTracker& = 0;
+
+#if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
+        virtual void benchmarkPreparing( std::string const& name ) = 0;
         virtual void benchmarkStarting( BenchmarkInfo const& info ) = 0;
-        virtual void benchmarkEnded( BenchmarkStats const& stats ) = 0;
+        virtual void benchmarkEnded( BenchmarkStats<> const& stats ) = 0;
+        virtual void benchmarkFailed( std::string const& error ) = 0;
+#endif // CATCH_CONFIG_ENABLE_BENCHMARKING
 
         virtual void pushScopedMessage( MessageInfo const& message ) = 0;
         virtual void popScopedMessage( MessageInfo const& message ) = 0;
 
+        virtual void emplaceUnscopedMessage( MessageBuilder const& builder ) = 0;
+
         virtual void handleFatalErrorCondition( StringRef message ) = 0;
 
         virtual void handleExpr
@@ -1546,7 +2511,7 @@ namespace Catch {
 
     public:
         AssertionHandler
-            (   StringRef macroName,
+            (   StringRef const& macroName,
                 SourceLineInfo const& lineInfo,
                 StringRef capturedExpression,
                 ResultDisposition::Flags resultDisposition );
@@ -1577,7 +2542,7 @@ namespace Catch {
         auto allowThrows() const -> bool;
     };
 
-    void handleExceptionMatchExpr( AssertionHandler& handler, std::string const& str, StringRef matcherString );
+    void handleExceptionMatchExpr( AssertionHandler& handler, std::string const& str, StringRef const& matcherString );
 
 } // namespace Catch
 
@@ -1585,15 +2550,16 @@ namespace Catch {
 // start catch_message.h
 
 #include <string>
+#include <vector>
 
 namespace Catch {
 
     struct MessageInfo {
-        MessageInfo(    std::string const& _macroName,
+        MessageInfo(    StringRef const& _macroName,
                         SourceLineInfo const& _lineInfo,
                         ResultWas::OfType _type );
 
-        std::string macroName;
+        StringRef macroName;
         std::string message;
         SourceLineInfo lineInfo;
         ResultWas::OfType type;
@@ -1617,7 +2583,7 @@ namespace Catch {
     };
 
     struct MessageBuilder : MessageStream {
-        MessageBuilder( std::string const& macroName,
+        MessageBuilder( StringRef const& macroName,
                         SourceLineInfo const& lineInfo,
                         ResultWas::OfType type );
 
@@ -1633,9 +2599,34 @@ namespace Catch {
     class ScopedMessage {
     public:
         explicit ScopedMessage( MessageBuilder const& builder );
+        ScopedMessage( ScopedMessage& duplicate ) = delete;
+        ScopedMessage( ScopedMessage&& old );
         ~ScopedMessage();
 
         MessageInfo m_info;
+        bool m_moved;
+    };
+
+    class Capturer {
+        std::vector<MessageInfo> m_messages;
+        IResultCapture& m_resultCapture = getResultCapture();
+        size_t m_captured = 0;
+    public:
+        Capturer( StringRef macroName, SourceLineInfo const& lineInfo, ResultWas::OfType resultType, StringRef names );
+        ~Capturer();
+
+        void captureValue( size_t index, std::string const& value );
+
+        template<typename T>
+        void captureValues( size_t index, T const& value ) {
+            captureValue( index, Catch::Detail::stringify( value ) );
+        }
+
+        template<typename T, typename... Ts>
+        void captureValues( size_t index, T const& value, Ts const&... values ) {
+            captureValue( index, Catch::Detail::stringify(value) );
+            captureValues( index+1, values... );
+        }
     };
 
 } // end namespace Catch
@@ -1649,7 +2640,7 @@ namespace Catch {
   #define CATCH_INTERNAL_STRINGIFY(...) "Disabled by CATCH_CONFIG_DISABLE_STRINGIFICATION"
 #endif
 
-#if defined(CATCH_CONFIG_FAST_COMPILE)
+#if defined(CATCH_CONFIG_FAST_COMPILE) || defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
 
 ///////////////////////////////////////////////////////////////////////////////
 // Another way to speed-up compilation is to omit local try-catch for REQUIRE*
@@ -1669,14 +2660,15 @@ namespace Catch {
 ///////////////////////////////////////////////////////////////////////////////
 #define INTERNAL_CATCH_TEST( macroName, resultDisposition, ... ) \
     do { \
-        Catch::AssertionHandler catchAssertionHandler( macroName, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__), resultDisposition ); \
+        Catch::AssertionHandler catchAssertionHandler( macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__), resultDisposition ); \
         INTERNAL_CATCH_TRY { \
+            CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
             CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS \
             catchAssertionHandler.handleExpr( Catch::Decomposer() <= __VA_ARGS__ ); \
-            CATCH_INTERNAL_UNSUPPRESS_PARENTHESES_WARNINGS \
+            CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION \
         } INTERNAL_CATCH_CATCH( catchAssertionHandler ) \
         INTERNAL_CATCH_REACT( catchAssertionHandler ) \
-    } while( (void)0, false && static_cast<bool>( !!(__VA_ARGS__) ) ) // the expression here is never evaluated at runtime but it forces the compiler to give it a look
+    } while( (void)0, (false) && static_cast<bool>( !!(__VA_ARGS__) ) ) // the expression here is never evaluated at runtime but it forces the compiler to give it a look
     // The double negation silences MSVC's C4800 warning, the static_cast forces short-circuit evaluation if the type has overloaded &&.
 
 ///////////////////////////////////////////////////////////////////////////////
@@ -1692,7 +2684,7 @@ namespace Catch {
 ///////////////////////////////////////////////////////////////////////////////
 #define INTERNAL_CATCH_NO_THROW( macroName, resultDisposition, ... ) \
     do { \
-        Catch::AssertionHandler catchAssertionHandler( macroName, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__), resultDisposition ); \
+        Catch::AssertionHandler catchAssertionHandler( macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__), resultDisposition ); \
         try { \
             static_cast<void>(__VA_ARGS__); \
             catchAssertionHandler.handleExceptionNotThrownAsExpected(); \
@@ -1706,7 +2698,7 @@ namespace Catch {
 ///////////////////////////////////////////////////////////////////////////////
 #define INTERNAL_CATCH_THROWS( macroName, resultDisposition, ... ) \
     do { \
-        Catch::AssertionHandler catchAssertionHandler( macroName, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__), resultDisposition); \
+        Catch::AssertionHandler catchAssertionHandler( macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__), resultDisposition); \
         if( catchAssertionHandler.allowThrows() ) \
             try { \
                 static_cast<void>(__VA_ARGS__); \
@@ -1723,7 +2715,7 @@ namespace Catch {
 ///////////////////////////////////////////////////////////////////////////////
 #define INTERNAL_CATCH_THROWS_AS( macroName, exceptionType, resultDisposition, expr ) \
     do { \
-        Catch::AssertionHandler catchAssertionHandler( macroName, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(expr) ", " CATCH_INTERNAL_STRINGIFY(exceptionType), resultDisposition ); \
+        Catch::AssertionHandler catchAssertionHandler( macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(expr) ", " CATCH_INTERNAL_STRINGIFY(exceptionType), resultDisposition ); \
         if( catchAssertionHandler.allowThrows() ) \
             try { \
                 static_cast<void>(expr); \
@@ -1743,27 +2735,36 @@ namespace Catch {
 ///////////////////////////////////////////////////////////////////////////////
 #define INTERNAL_CATCH_MSG( macroName, messageType, resultDisposition, ... ) \
     do { \
-        Catch::AssertionHandler catchAssertionHandler( macroName, CATCH_INTERNAL_LINEINFO, "", resultDisposition ); \
+        Catch::AssertionHandler catchAssertionHandler( macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, Catch::StringRef(), resultDisposition ); \
         catchAssertionHandler.handleMessage( messageType, ( Catch::MessageStream() << __VA_ARGS__ + ::Catch::StreamEndStop() ).m_stream.str() ); \
         INTERNAL_CATCH_REACT( catchAssertionHandler ) \
     } while( false )
 
 ///////////////////////////////////////////////////////////////////////////////
+#define INTERNAL_CATCH_CAPTURE( varName, macroName, ... ) \
+    auto varName = Catch::Capturer( macroName, CATCH_INTERNAL_LINEINFO, Catch::ResultWas::Info, #__VA_ARGS__ ); \
+    varName.captureValues( 0, __VA_ARGS__ )
+
+///////////////////////////////////////////////////////////////////////////////
 #define INTERNAL_CATCH_INFO( macroName, log ) \
-    Catch::ScopedMessage INTERNAL_CATCH_UNIQUE_NAME( scopedMessage )( Catch::MessageBuilder( macroName, CATCH_INTERNAL_LINEINFO, Catch::ResultWas::Info ) << log );
+    Catch::ScopedMessage INTERNAL_CATCH_UNIQUE_NAME( scopedMessage )( Catch::MessageBuilder( macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, Catch::ResultWas::Info ) << log );
+
+///////////////////////////////////////////////////////////////////////////////
+#define INTERNAL_CATCH_UNSCOPED_INFO( macroName, log ) \
+    Catch::getResultCapture().emplaceUnscopedMessage( Catch::MessageBuilder( macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, Catch::ResultWas::Info ) << log )
 
 ///////////////////////////////////////////////////////////////////////////////
 // Although this is matcher-based, it can be used with just a string
 #define INTERNAL_CATCH_THROWS_STR_MATCHES( macroName, resultDisposition, matcher, ... ) \
     do { \
-        Catch::AssertionHandler catchAssertionHandler( macroName, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__) ", " CATCH_INTERNAL_STRINGIFY(matcher), resultDisposition ); \
+        Catch::AssertionHandler catchAssertionHandler( macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__) ", " CATCH_INTERNAL_STRINGIFY(matcher), resultDisposition ); \
         if( catchAssertionHandler.allowThrows() ) \
             try { \
                 static_cast<void>(__VA_ARGS__); \
                 catchAssertionHandler.handleUnexpectedExceptionNotThrown(); \
             } \
             catch( ... ) { \
-                Catch::handleExceptionMatchExpr( catchAssertionHandler, matcher, #matcher ); \
+                Catch::handleExceptionMatchExpr( catchAssertionHandler, matcher, #matcher##_catch_sr ); \
             } \
         else \
             catchAssertionHandler.handleThrowingCallSkipped(); \
@@ -1817,17 +2818,20 @@ namespace Catch {
     struct SectionInfo {
         SectionInfo
             (   SourceLineInfo const& _lineInfo,
+                std::string const& _name );
+
+        // Deprecated
+        SectionInfo
+            (   SourceLineInfo const& _lineInfo,
                 std::string const& _name,
-                std::string const& _description = std::string() );
+                std::string const& ) : SectionInfo( _lineInfo, _name ) {}
 
         std::string name;
-        std::string description;
+        std::string description; // !Deprecated: this will always be empty
         SourceLineInfo lineInfo;
     };
 
     struct SectionEndInfo {
-        SectionEndInfo( SectionInfo const& _sectionInfo, Counts const& _prevAssertions, double _durationInSeconds );
-
         SectionInfo sectionInfo;
         Counts prevAssertions;
         double durationInSeconds;
@@ -1881,56 +2885,19 @@ namespace Catch {
 
 } // end namespace Catch
 
-    #define INTERNAL_CATCH_SECTION( ... ) \
-        if( Catch::Section const& INTERNAL_CATCH_UNIQUE_NAME( catch_internal_Section ) = Catch::SectionInfo( CATCH_INTERNAL_LINEINFO, __VA_ARGS__ ) )
-
-// end catch_section.h
-// start catch_benchmark.h
-
-#include <cstdint>
-#include <string>
-
-namespace Catch {
-
-    class BenchmarkLooper {
-
-        std::string m_name;
-        std::size_t m_count = 0;
-        std::size_t m_iterationsToRun = 1;
-        uint64_t m_resolution;
-        Timer m_timer;
-
-        static auto getResolution() -> uint64_t;
-    public:
-        // Keep most of this inline as it's on the code path that is being timed
-        BenchmarkLooper( StringRef name )
-        :   m_name( name ),
-            m_resolution( getResolution() )
-        {
-            reportStart();
-            m_timer.start();
-        }
-
-        explicit operator bool() {
-            if( m_count < m_iterationsToRun )
-                return true;
-            return needsMoreIterations();
-        }
-
-        void increment() {
-            ++m_count;
-        }
-
-        void reportStart();
-        auto needsMoreIterations() -> bool;
-    };
-
-} // end namespace Catch
+#define INTERNAL_CATCH_SECTION( ... ) \
+    CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
+    CATCH_INTERNAL_SUPPRESS_UNUSED_WARNINGS \
+    if( Catch::Section const& INTERNAL_CATCH_UNIQUE_NAME( catch_internal_Section ) = Catch::SectionInfo( CATCH_INTERNAL_LINEINFO, __VA_ARGS__ ) ) \
+    CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION
 
-#define BENCHMARK( name ) \
-    for( Catch::BenchmarkLooper looper( name ); looper; looper.increment() )
+#define INTERNAL_CATCH_DYNAMIC_SECTION( ... ) \
+    CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
+    CATCH_INTERNAL_SUPPRESS_UNUSED_WARNINGS \
+    if( Catch::Section const& INTERNAL_CATCH_UNIQUE_NAME( catch_internal_Section ) = Catch::SectionInfo( CATCH_INTERNAL_LINEINFO, (Catch::ReusableStringStream() << __VA_ARGS__).str() ) ) \
+    CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION
 
-// end catch_benchmark.h
+// end catch_section.h
 // start catch_interfaces_exception.h
 
 // start catch_interfaces_registry_hub.h
@@ -1947,6 +2914,8 @@ namespace Catch {
     struct IReporterRegistry;
     struct IReporterFactory;
     struct ITagAliasRegistry;
+    struct IMutableEnumValuesRegistry;
+
     class StartupExceptionRegistry;
 
     using IReporterFactoryPtr = std::shared_ptr<IReporterFactory>;
@@ -1957,8 +2926,7 @@ namespace Catch {
         virtual IReporterRegistry const& getReporterRegistry() const = 0;
         virtual ITestCaseRegistry const& getTestCaseRegistry() const = 0;
         virtual ITagAliasRegistry const& getTagAliasRegistry() const = 0;
-
-        virtual IExceptionTranslatorRegistry& getExceptionTranslatorRegistry() = 0;
+        virtual IExceptionTranslatorRegistry const& getExceptionTranslatorRegistry() const = 0;
 
         virtual StartupExceptionRegistry const& getStartupExceptionRegistry() const = 0;
     };
@@ -1971,9 +2939,10 @@ namespace Catch {
         virtual void registerTranslator( const IExceptionTranslator* translator ) = 0;
         virtual void registerTagAlias( std::string const& alias, std::string const& tag, SourceLineInfo const& lineInfo ) = 0;
         virtual void registerStartupException() noexcept = 0;
+        virtual IMutableEnumValuesRegistry& getMutableEnumValuesRegistry() = 0;
     };
 
-    IRegistryHub& getRegistryHub();
+    IRegistryHub const& getRegistryHub();
     IMutableRegistryHub& getMutableRegistryHub();
     void cleanUp();
     std::string translateActiveException();
@@ -2044,9 +3013,10 @@ namespace Catch {
 ///////////////////////////////////////////////////////////////////////////////
 #define INTERNAL_CATCH_TRANSLATE_EXCEPTION2( translatorName, signature ) \
     static std::string translatorName( signature ); \
+    CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
     CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
     namespace{ Catch::ExceptionTranslatorRegistrar INTERNAL_CATCH_UNIQUE_NAME( catch_internal_ExceptionRegistrar )( &translatorName ); } \
-    CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS \
+    CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION \
     static std::string translatorName( signature )
 
 #define INTERNAL_CATCH_TRANSLATE_EXCEPTION( signature ) INTERNAL_CATCH_TRANSLATE_EXCEPTION2( INTERNAL_CATCH_UNIQUE_NAME( catch_internal_ExceptionTranslator ), signature )
@@ -2055,7 +3025,6 @@ namespace Catch {
 // start catch_approx.h
 
 #include <type_traits>
-#include <stdexcept>
 
 namespace Catch {
 namespace Detail {
@@ -2063,18 +3032,26 @@ namespace Detail {
     class Approx {
     private:
         bool equalityComparisonImpl(double other) const;
+        // Validates the new margin (margin >= 0)
+        // out-of-line to avoid including stdexcept in the header
+        void setMargin(double margin);
+        // Validates the new epsilon (0 < epsilon < 1)
+        // out-of-line to avoid including stdexcept in the header
+        void setEpsilon(double epsilon);
 
     public:
         explicit Approx ( double value );
 
         static Approx custom();
 
+        Approx operator-() const;
+
         template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
         Approx operator()( T const& value ) {
             Approx approx( static_cast<double>(value) );
-            approx.epsilon( m_epsilon );
-            approx.margin( m_margin );
-            approx.scale( m_scale );
+            approx.m_epsilon = m_epsilon;
+            approx.m_margin = m_margin;
+            approx.m_scale = m_scale;
             return approx;
         }
 
@@ -2126,27 +3103,14 @@ namespace Detail {
         template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
         Approx& epsilon( T const& newEpsilon ) {
             double epsilonAsDouble = static_cast<double>(newEpsilon);
-            if( epsilonAsDouble < 0 || epsilonAsDouble > 1.0 ) {
-                throw std::domain_error
-                    (   "Invalid Approx::epsilon: " +
-                        Catch::Detail::stringify( epsilonAsDouble ) +
-                        ", Approx::epsilon has to be between 0 and 1" );
-            }
-            m_epsilon = epsilonAsDouble;
+            setEpsilon(epsilonAsDouble);
             return *this;
         }
 
         template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
         Approx& margin( T const& newMargin ) {
             double marginAsDouble = static_cast<double>(newMargin);
-            if( marginAsDouble < 0 ) {
-                throw std::domain_error
-                    (   "Invalid Approx::margin: " +
-                         Catch::Detail::stringify( marginAsDouble ) +
-                         ", Approx::Margin has to be non-negative." );
-
-            }
-            m_margin = marginAsDouble;
+            setMargin(marginAsDouble);
             return *this;
         }
 
@@ -2164,7 +3128,12 @@ namespace Detail {
         double m_scale;
         double m_value;
     };
-}
+} // end namespace Detail
+
+namespace literals {
+    Detail::Approx operator "" _a(long double val);
+    Detail::Approx operator "" _a(unsigned long long val);
+} // end namespace literals
 
 template<>
 struct StringMaker<Catch::Detail::Approx> {
@@ -2178,6 +3147,7 @@ struct StringMaker<Catch::Detail::Approx> {
 
 #include <string>
 #include <iosfwd>
+#include <vector>
 
 namespace Catch {
 
@@ -2188,7 +3158,13 @@ namespace Catch {
     bool contains( std::string const& s, std::string const& infix );
     void toLowerInPlace( std::string& s );
     std::string toLower( std::string const& s );
+    //! Returns a new string without whitespace at the start/end
     std::string trim( std::string const& str );
+    //! Returns a substring of the original ref without whitespace. Beware lifetimes!
+    StringRef trim(StringRef ref);
+
+    // !!! Be aware, returns refs into original string - make sure original string outlives them
+    std::vector<StringRef> splitStringRef( StringRef str, char delimiter );
     bool replaceInPlace( std::string& str, std::string const& replaceThis, std::string const& withThis );
 
     struct pluralise {
@@ -2231,14 +3207,28 @@ namespace Matchers {
             mutable std::string m_cachedToString;
         };
 
+#ifdef __clang__
+#    pragma clang diagnostic push
+#    pragma clang diagnostic ignored "-Wnon-virtual-dtor"
+#endif
+
         template<typename ObjectT>
         struct MatcherMethod {
             virtual bool match( ObjectT const& arg ) const = 0;
         };
-        template<typename PtrT>
-        struct MatcherMethod<PtrT*> {
-            virtual bool match( PtrT* arg ) const = 0;
+
+#if defined(__OBJC__)
+        // Hack to fix Catch GH issue #1661. Could use id for generic Object support.
+        // use of const for Object pointers is very uncommon and under ARC it causes some kind of signature mismatch that breaks compilation
+        template<>
+        struct MatcherMethod<NSString*> {
+            virtual bool match( NSString* arg ) const = 0;
         };
+#endif
+
+#ifdef __clang__
+#    pragma clang diagnostic pop
+#endif
 
         template<typename T>
         struct MatcherBase : MatcherUntypedBase, MatcherMethod<T> {
@@ -2352,10 +3342,34 @@ using Matchers::Impl::MatcherBase;
 } // namespace Catch
 
 // end catch_matchers.h
-// start catch_matchers_floating.h
+// start catch_matchers_exception.hpp
 
-#include <type_traits>
-#include <cmath>
+namespace Catch {
+namespace Matchers {
+namespace Exception {
+
+class ExceptionMessageMatcher : public MatcherBase<std::exception> {
+    std::string m_message;
+public:
+
+    ExceptionMessageMatcher(std::string const& message):
+        m_message(message)
+    {}
+
+    bool match(std::exception const& ex) const override;
+
+    std::string describe() const override;
+};
+
+} // namespace Exception
+
+Exception::ExceptionMessageMatcher Message(std::string const& message);
+
+} // namespace Matchers
+} // namespace Catch
+
+// end catch_matchers_exception.hpp
+// start catch_matchers_floating.h
 
 namespace Catch {
 namespace Matchers {
@@ -2374,22 +3388,43 @@ namespace Matchers {
         };
 
         struct WithinUlpsMatcher : MatcherBase<double> {
-            WithinUlpsMatcher(double target, int ulps, FloatingPointKind baseType);
+            WithinUlpsMatcher(double target, uint64_t ulps, FloatingPointKind baseType);
             bool match(double const& matchee) const override;
             std::string describe() const override;
         private:
             double m_target;
-            int m_ulps;
+            uint64_t m_ulps;
             FloatingPointKind m_type;
         };
 
+        // Given IEEE-754 format for floats and doubles, we can assume
+        // that float -> double promotion is lossless. Given this, we can
+        // assume that if we do the standard relative comparison of
+        // |lhs - rhs| <= epsilon * max(fabs(lhs), fabs(rhs)), then we get
+        // the same result if we do this for floats, as if we do this for
+        // doubles that were promoted from floats.
+        struct WithinRelMatcher : MatcherBase<double> {
+            WithinRelMatcher(double target, double epsilon);
+            bool match(double const& matchee) const override;
+            std::string describe() const override;
+        private:
+            double m_target;
+            double m_epsilon;
+        };
+
     } // namespace Floating
 
     // The following functions create the actual matcher objects.
     // This allows the types to be inferred
-    Floating::WithinUlpsMatcher WithinULP(double target, int maxUlpDiff);
-    Floating::WithinUlpsMatcher WithinULP(float target, int maxUlpDiff);
+    Floating::WithinUlpsMatcher WithinULP(double target, uint64_t maxUlpDiff);
+    Floating::WithinUlpsMatcher WithinULP(float target, uint64_t maxUlpDiff);
     Floating::WithinAbsMatcher WithinAbs(double target, double margin);
+    Floating::WithinRelMatcher WithinRel(double target, double eps);
+    // defaults epsilon to 100*numeric_limits<double>::epsilon()
+    Floating::WithinRelMatcher WithinRel(double target);
+    Floating::WithinRelMatcher WithinRel(float target, float eps);
+    // defaults epsilon to 100*numeric_limits<float>::epsilon()
+    Floating::WithinRelMatcher WithinRel(float target);
 
 } // namespace Matchers
 } // namespace Catch
@@ -2432,7 +3467,7 @@ public:
 
     // The following functions create the actual matcher objects.
     // The user has to explicitly specify type to the function, because
-    // infering std::function<bool(T const&)> is hard (but possible) and
+    // inferring std::function<bool(T const&)> is hard (but possible) and
     // requires a lot of TMP.
     template<typename T>
     Generic::PredicateMatcher<T> Predicate(std::function<bool(T const&)> const& predicate, std::string const& description = "") {
@@ -2520,28 +3555,6 @@ namespace Catch {
 namespace Matchers {
 
     namespace Vector {
-        namespace Detail {
-            template <typename InputIterator, typename T>
-            size_t count(InputIterator first, InputIterator last, T const& item) {
-                size_t cnt = 0;
-                for (; first != last; ++first) {
-                    if (*first == item) {
-                        ++cnt;
-                    }
-                }
-                return cnt;
-            }
-            template <typename InputIterator, typename T>
-            bool contains(InputIterator first, InputIterator last, T const& item) {
-                for (; first != last; ++first) {
-                    if (*first == item) {
-                        return true;
-                    }
-                }
-                return false;
-            }
-        }
-
         template<typename T>
         struct ContainsElementMatcher : MatcherBase<std::vector<T>> {
 
@@ -2617,6 +3630,42 @@ namespace Matchers {
         };
 
         template<typename T>
+        struct ApproxMatcher : MatcherBase<std::vector<T>> {
+
+            ApproxMatcher(std::vector<T> const& comparator) : m_comparator( comparator ) {}
+
+            bool match(std::vector<T> const &v) const override {
+                if (m_comparator.size() != v.size())
+                    return false;
+                for (std::size_t i = 0; i < v.size(); ++i)
+                    if (m_comparator[i] != approx(v[i]))
+                        return false;
+                return true;
+            }
+            std::string describe() const override {
+                return "is approx: " + ::Catch::Detail::stringify( m_comparator );
+            }
+            template <typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
+            ApproxMatcher& epsilon( T const& newEpsilon ) {
+                approx.epsilon(newEpsilon);
+                return *this;
+            }
+            template <typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
+            ApproxMatcher& margin( T const& newMargin ) {
+                approx.margin(newMargin);
+                return *this;
+            }
+            template <typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
+            ApproxMatcher& scale( T const& newScale ) {
+                approx.scale(newScale);
+                return *this;
+            }
+
+            std::vector<T> const& m_comparator;
+            mutable Catch::Detail::Approx approx = Catch::Detail::Approx::custom();
+        };
+
+        template<typename T>
         struct UnorderedEqualsMatcher : MatcherBase<std::vector<T>> {
             UnorderedEqualsMatcher(std::vector<T> const& target) : m_target(target) {}
             bool match(std::vector<T> const& vec) const override {
@@ -2625,28 +3674,7 @@ namespace Matchers {
                 if (m_target.size() != vec.size()) {
                     return false;
                 }
-                auto lfirst = m_target.begin(), llast = m_target.end();
-                auto rfirst = vec.begin(), rlast = vec.end();
-                // Cut common prefix to optimize checking of permuted parts
-                while (lfirst != llast && *lfirst != *rfirst) {
-                    ++lfirst; ++rfirst;
-                }
-                if (lfirst == llast) {
-                    return true;
-                }
-
-                for (auto mid = lfirst; mid != llast; ++mid) {
-                    // Skip already counted items
-                    if (Detail::contains(lfirst, mid, *mid)) {
-                        continue;
-                    }
-                    size_t num_vec = Detail::count(rfirst, rlast, *mid);
-                    if (num_vec == 0 || Detail::count(lfirst, llast, *mid) != num_vec) {
-                        return false;
-                    }
-                }
-
-                return true;
+                return std::is_permutation(m_target.begin(), m_target.end(), vec.begin());
             }
 
             std::string describe() const override {
@@ -2677,6 +3705,11 @@ namespace Matchers {
     }
 
     template<typename T>
+    Vector::ApproxMatcher<T> Approx( std::vector<T> const& comparator ) {
+        return Vector::ApproxMatcher<T>( comparator );
+    }
+
+    template<typename T>
     Vector::UnorderedEqualsMatcher<T> UnorderedEquals(std::vector<T> const& target) {
         return Vector::UnorderedEqualsMatcher<T>(target);
     }
@@ -2693,7 +3726,7 @@ namespace Catch {
         MatcherT m_matcher;
         StringRef m_matcherString;
     public:
-        MatchExpr( ArgT const& arg, MatcherT const& matcher, StringRef matcherString )
+        MatchExpr( ArgT const& arg, MatcherT const& matcher, StringRef const& matcherString )
         :   ITransientExpression{ true, matcher.match( arg ) },
             m_arg( arg ),
             m_matcher( matcher ),
@@ -2712,10 +3745,10 @@ namespace Catch {
 
     using StringMatcher = Matchers::Impl::MatcherBase<std::string>;
 
-    void handleExceptionMatchExpr( AssertionHandler& handler, StringMatcher const& matcher, StringRef matcherString  );
+    void handleExceptionMatchExpr( AssertionHandler& handler, StringMatcher const& matcher, StringRef const& matcherString  );
 
     template<typename ArgT, typename MatcherT>
-    auto makeMatchExpr( ArgT const& arg, MatcherT const& matcher, StringRef matcherString  ) -> MatchExpr<ArgT, MatcherT> {
+    auto makeMatchExpr( ArgT const& arg, MatcherT const& matcher, StringRef const& matcherString  ) -> MatchExpr<ArgT, MatcherT> {
         return MatchExpr<ArgT, MatcherT>( arg, matcher, matcherString );
     }
 
@@ -2724,9 +3757,9 @@ namespace Catch {
 ///////////////////////////////////////////////////////////////////////////////
 #define INTERNAL_CHECK_THAT( macroName, matcher, resultDisposition, arg ) \
     do { \
-        Catch::AssertionHandler catchAssertionHandler( macroName, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(arg) ", " CATCH_INTERNAL_STRINGIFY(matcher), resultDisposition ); \
+        Catch::AssertionHandler catchAssertionHandler( macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(arg) ", " CATCH_INTERNAL_STRINGIFY(matcher), resultDisposition ); \
         INTERNAL_CATCH_TRY { \
-            catchAssertionHandler.handleExpr( Catch::makeMatchExpr( arg, matcher, #matcher ) ); \
+            catchAssertionHandler.handleExpr( Catch::makeMatchExpr( arg, matcher, #matcher##_catch_sr ) ); \
         } INTERNAL_CATCH_CATCH( catchAssertionHandler ) \
         INTERNAL_CATCH_REACT( catchAssertionHandler ) \
     } while( false )
@@ -2734,14 +3767,14 @@ namespace Catch {
 ///////////////////////////////////////////////////////////////////////////////
 #define INTERNAL_CATCH_THROWS_MATCHES( macroName, exceptionType, resultDisposition, matcher, ... ) \
     do { \
-        Catch::AssertionHandler catchAssertionHandler( macroName, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__) ", " CATCH_INTERNAL_STRINGIFY(exceptionType) ", " CATCH_INTERNAL_STRINGIFY(matcher), resultDisposition ); \
+        Catch::AssertionHandler catchAssertionHandler( macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__) ", " CATCH_INTERNAL_STRINGIFY(exceptionType) ", " CATCH_INTERNAL_STRINGIFY(matcher), resultDisposition ); \
         if( catchAssertionHandler.allowThrows() ) \
             try { \
                 static_cast<void>(__VA_ARGS__ ); \
                 catchAssertionHandler.handleUnexpectedExceptionNotThrown(); \
             } \
             catch( exceptionType const& ex ) { \
-                catchAssertionHandler.handleExpr( Catch::makeMatchExpr( ex, matcher, #matcher ) ); \
+                catchAssertionHandler.handleExpr( Catch::makeMatchExpr( ex, matcher, #matcher##_catch_sr ) ); \
             } \
             catch( ... ) { \
                 catchAssertionHandler.handleUnexpectedInflightException(); \
@@ -2753,494 +3786,629 @@ namespace Catch {
 
 // end catch_capture_matchers.h
 #endif
+// start catch_generators.hpp
 
-// These files are included here so the single_include script doesn't put them
-// in the conditionally compiled sections
-// start catch_test_case_info.h
+// start catch_interfaces_generatortracker.h
 
-#include <string>
-#include <vector>
-#include <memory>
 
-#ifdef __clang__
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wpadded"
-#endif
+#include <memory>
 
 namespace Catch {
 
-    struct ITestInvoker;
-
-    struct TestCaseInfo {
-        enum SpecialProperties{
-            None = 0,
-            IsHidden = 1 << 1,
-            ShouldFail = 1 << 2,
-            MayFail = 1 << 3,
-            Throws = 1 << 4,
-            NonPortable = 1 << 5,
-            Benchmark = 1 << 6
+    namespace Generators {
+        class GeneratorUntypedBase {
+        public:
+            GeneratorUntypedBase() = default;
+            virtual ~GeneratorUntypedBase();
+            // Attempts to move the generator to the next element
+             //
+             // Returns true iff the move succeeded (and a valid element
+             // can be retrieved).
+            virtual bool next() = 0;
         };
+        using GeneratorBasePtr = std::unique_ptr<GeneratorUntypedBase>;
 
-        TestCaseInfo(   std::string const& _name,
-                        std::string const& _className,
-                        std::string const& _description,
-                        std::vector<std::string> const& _tags,
-                        SourceLineInfo const& _lineInfo );
+    } // namespace Generators
 
-        friend void setTags( TestCaseInfo& testCaseInfo, std::vector<std::string> tags );
+    struct IGeneratorTracker {
+        virtual ~IGeneratorTracker();
+        virtual auto hasGenerator() const -> bool = 0;
+        virtual auto getGenerator() const -> Generators::GeneratorBasePtr const& = 0;
+        virtual void setGenerator( Generators::GeneratorBasePtr&& generator ) = 0;
+    };
 
-        bool isHidden() const;
-        bool throws() const;
-        bool okToFail() const;
-        bool expectedToFail() const;
+} // namespace Catch
 
-        std::string tagsAsString() const;
+// end catch_interfaces_generatortracker.h
+// start catch_enforce.h
 
-        std::string name;
-        std::string className;
-        std::string description;
-        std::vector<std::string> tags;
-        std::vector<std::string> lcaseTags;
-        SourceLineInfo lineInfo;
-        SpecialProperties properties;
-    };
+#include <exception>
 
-    class TestCase : public TestCaseInfo {
-    public:
+namespace Catch {
+#if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
+    template <typename Ex>
+    [[noreturn]]
+    void throw_exception(Ex const& e) {
+        throw e;
+    }
+#else // ^^ Exceptions are enabled //  Exceptions are disabled vv
+    [[noreturn]]
+    void throw_exception(std::exception const& e);
+#endif
 
-        TestCase( ITestInvoker* testCase, TestCaseInfo&& info );
+    [[noreturn]]
+    void throw_logic_error(std::string const& msg);
+    [[noreturn]]
+    void throw_domain_error(std::string const& msg);
+    [[noreturn]]
+    void throw_runtime_error(std::string const& msg);
 
-        TestCase withName( std::string const& _newName ) const;
+} // namespace Catch;
 
-        void invoke() const;
+#define CATCH_MAKE_MSG(...) \
+    (Catch::ReusableStringStream() << __VA_ARGS__).str()
 
-        TestCaseInfo const& getTestCaseInfo() const;
+#define CATCH_INTERNAL_ERROR(...) \
+    Catch::throw_logic_error(CATCH_MAKE_MSG( CATCH_INTERNAL_LINEINFO << ": Internal Catch2 error: " << __VA_ARGS__))
 
-        bool operator == ( TestCase const& other ) const;
-        bool operator < ( TestCase const& other ) const;
+#define CATCH_ERROR(...) \
+    Catch::throw_domain_error(CATCH_MAKE_MSG( __VA_ARGS__ ))
 
-    private:
-        std::shared_ptr<ITestInvoker> test;
-    };
+#define CATCH_RUNTIME_ERROR(...) \
+    Catch::throw_runtime_error(CATCH_MAKE_MSG( __VA_ARGS__ ))
 
-    TestCase makeTestCase(  ITestInvoker* testCase,
-                            std::string const& className,
-                            NameAndTags const& nameAndTags,
-                            SourceLineInfo const& lineInfo );
-}
+#define CATCH_ENFORCE( condition, ... ) \
+    do{ if( !(condition) ) CATCH_ERROR( __VA_ARGS__ ); } while(false)
 
-#ifdef __clang__
-#pragma clang diagnostic pop
-#endif
+// end catch_enforce.h
+#include <memory>
+#include <vector>
+#include <cassert>
 
-// end catch_test_case_info.h
-// start catch_interfaces_runner.h
+#include <utility>
+#include <exception>
 
 namespace Catch {
 
-    struct IRunner {
-        virtual ~IRunner();
-        virtual bool aborting() const = 0;
-    };
-}
-
-// end catch_interfaces_runner.h
-
-#ifdef __OBJC__
-// start catch_objc.hpp
+class GeneratorException : public std::exception {
+    const char* const m_msg = "";
 
-#import <objc/runtime.h>
+public:
+    GeneratorException(const char* msg):
+        m_msg(msg)
+    {}
 
-#include <string>
+    const char* what() const noexcept override final;
+};
 
-// NB. Any general catch headers included here must be included
-// in catch.hpp first to make sure they are included by the single
-// header for non obj-usage
+namespace Generators {
 
-///////////////////////////////////////////////////////////////////////////////
-// This protocol is really only here for (self) documenting purposes, since
-// all its methods are optional.
-@protocol OcFixture
+    // !TBD move this into its own location?
+    namespace pf{
+        template<typename T, typename... Args>
+        std::unique_ptr<T> make_unique( Args&&... args ) {
+            return std::unique_ptr<T>(new T(std::forward<Args>(args)...));
+        }
+    }
 
-@optional
+    template<typename T>
+    struct IGenerator : GeneratorUntypedBase {
+        virtual ~IGenerator() = default;
+
+        // Returns the current element of the generator
+        //
+        // \Precondition The generator is either freshly constructed,
+        // or the last call to `next()` returned true
+        virtual T const& get() const = 0;
+        using type = T;
+    };
 
--(void) setUp;
--(void) tearDown;
+    template<typename T>
+    class SingleValueGenerator final : public IGenerator<T> {
+        T m_value;
+    public:
+        SingleValueGenerator(T const& value) : m_value( value ) {}
+        SingleValueGenerator(T&& value) : m_value(std::move(value)) {}
 
-@end
+        T const& get() const override {
+            return m_value;
+        }
+        bool next() override {
+            return false;
+        }
+    };
 
-namespace Catch {
+    template<typename T>
+    class FixedValuesGenerator final : public IGenerator<T> {
+        static_assert(!std::is_same<T, bool>::value,
+            "FixedValuesGenerator does not support bools because of std::vector<bool>"
+            "specialization, use SingleValue Generator instead.");
+        std::vector<T> m_values;
+        size_t m_idx = 0;
+    public:
+        FixedValuesGenerator( std::initializer_list<T> values ) : m_values( values ) {}
 
-    class OcMethod : public ITestInvoker {
+        T const& get() const override {
+            return m_values[m_idx];
+        }
+        bool next() override {
+            ++m_idx;
+            return m_idx < m_values.size();
+        }
+    };
 
+    template <typename T>
+    class GeneratorWrapper final {
+        std::unique_ptr<IGenerator<T>> m_generator;
     public:
-        OcMethod( Class cls, SEL sel ) : m_cls( cls ), m_sel( sel ) {}
+        GeneratorWrapper(std::unique_ptr<IGenerator<T>> generator):
+            m_generator(std::move(generator))
+        {}
+        T const& get() const {
+            return m_generator->get();
+        }
+        bool next() {
+            return m_generator->next();
+        }
+    };
 
-        virtual void invoke() const {
-            id obj = [[m_cls alloc] init];
+    template <typename T>
+    GeneratorWrapper<T> value(T&& value) {
+        return GeneratorWrapper<T>(pf::make_unique<SingleValueGenerator<T>>(std::forward<T>(value)));
+    }
+    template <typename T>
+    GeneratorWrapper<T> values(std::initializer_list<T> values) {
+        return GeneratorWrapper<T>(pf::make_unique<FixedValuesGenerator<T>>(values));
+    }
 
-            performOptionalSelector( obj, @selector(setUp)  );
-            performOptionalSelector( obj, m_sel );
-            performOptionalSelector( obj, @selector(tearDown)  );
+    template<typename T>
+    class Generators : public IGenerator<T> {
+        std::vector<GeneratorWrapper<T>> m_generators;
+        size_t m_current = 0;
 
-            arcSafeRelease( obj );
+        void populate(GeneratorWrapper<T>&& generator) {
+            m_generators.emplace_back(std::move(generator));
+        }
+        void populate(T&& val) {
+            m_generators.emplace_back(value(std::move(val)));
+        }
+        template<typename U>
+        void populate(U&& val) {
+            populate(T(std::move(val)));
+        }
+        template<typename U, typename... Gs>
+        void populate(U&& valueOrGenerator, Gs... moreGenerators) {
+            populate(std::forward<U>(valueOrGenerator));
+            populate(std::forward<Gs>(moreGenerators)...);
         }
-    private:
-        virtual ~OcMethod() {}
 
-        Class m_cls;
-        SEL m_sel;
-    };
+    public:
+        template <typename... Gs>
+        Generators(Gs... moreGenerators) {
+            m_generators.reserve(sizeof...(Gs));
+            populate(std::forward<Gs>(moreGenerators)...);
+        }
 
-    namespace Detail{
+        T const& get() const override {
+            return m_generators[m_current].get();
+        }
 
-        inline std::string getAnnotation(   Class cls,
-                                            std::string const& annotationName,
-                                            std::string const& testCaseName ) {
-            NSString* selStr = [[NSString alloc] initWithFormat:@"Catch_%s_%s", annotationName.c_str(), testCaseName.c_str()];
-            SEL sel = NSSelectorFromString( selStr );
-            arcSafeRelease( selStr );
-            id value = performOptionalSelector( cls, sel );
-            if( value )
-                return [(NSString*)value UTF8String];
-            return "";
+        bool next() override {
+            if (m_current >= m_generators.size()) {
+                return false;
+            }
+            const bool current_status = m_generators[m_current].next();
+            if (!current_status) {
+                ++m_current;
+            }
+            return m_current < m_generators.size();
         }
+    };
+
+    template<typename... Ts>
+    GeneratorWrapper<std::tuple<Ts...>> table( std::initializer_list<std::tuple<typename std::decay<Ts>::type...>> tuples ) {
+        return values<std::tuple<Ts...>>( tuples );
     }
 
-    inline std::size_t registerTestMethods() {
-        std::size_t noTestMethods = 0;
-        int noClasses = objc_getClassList( nullptr, 0 );
+    // Tag type to signal that a generator sequence should convert arguments to a specific type
+    template <typename T>
+    struct as {};
 
-        Class* classes = (CATCH_UNSAFE_UNRETAINED Class *)malloc( sizeof(Class) * noClasses);
-        objc_getClassList( classes, noClasses );
+    template<typename T, typename... Gs>
+    auto makeGenerators( GeneratorWrapper<T>&& generator, Gs... moreGenerators ) -> Generators<T> {
+        return Generators<T>(std::move(generator), std::forward<Gs>(moreGenerators)...);
+    }
+    template<typename T>
+    auto makeGenerators( GeneratorWrapper<T>&& generator ) -> Generators<T> {
+        return Generators<T>(std::move(generator));
+    }
+    template<typename T, typename... Gs>
+    auto makeGenerators( T&& val, Gs... moreGenerators ) -> Generators<T> {
+        return makeGenerators( value( std::forward<T>( val ) ), std::forward<Gs>( moreGenerators )... );
+    }
+    template<typename T, typename U, typename... Gs>
+    auto makeGenerators( as<T>, U&& val, Gs... moreGenerators ) -> Generators<T> {
+        return makeGenerators( value( T( std::forward<U>( val ) ) ), std::forward<Gs>( moreGenerators )... );
+    }
 
-        for( int c = 0; c < noClasses; c++ ) {
-            Class cls = classes[c];
-            {
-                u_int count;
-                Method* methods = class_copyMethodList( cls, &count );
-                for( u_int m = 0; m < count ; m++ ) {
-                    SEL selector = method_getName(methods[m]);
-                    std::string methodName = sel_getName(selector);
-                    if( startsWith( methodName, "Catch_TestCase_" ) ) {
-                        std::string testCaseName = methodName.substr( 15 );
-                        std::string name = Detail::getAnnotation( cls, "Name", testCaseName );
-                        std::string desc = Detail::getAnnotation( cls, "Description", testCaseName );
-                        const char* className = class_getName( cls );
+    auto acquireGeneratorTracker( SourceLineInfo const& lineInfo ) -> IGeneratorTracker&;
 
-                        getMutableRegistryHub().registerTest( makeTestCase( new OcMethod( cls, selector ), className, name.c_str(), desc.c_str(), SourceLineInfo("",0) ) );
-                        noTestMethods++;
-                    }
-                }
-                free(methods);
-            }
+    template<typename L>
+    // Note: The type after -> is weird, because VS2015 cannot parse
+    //       the expression used in the typedef inside, when it is in
+    //       return type. Yeah.
+    auto generate( SourceLineInfo const& lineInfo, L const& generatorExpression ) -> decltype(std::declval<decltype(generatorExpression())>().get()) {
+        using UnderlyingType = typename decltype(generatorExpression())::type;
+
+        IGeneratorTracker& tracker = acquireGeneratorTracker( lineInfo );
+        if (!tracker.hasGenerator()) {
+            tracker.setGenerator(pf::make_unique<Generators<UnderlyingType>>(generatorExpression()));
         }
-        return noTestMethods;
+
+        auto const& generator = static_cast<IGenerator<UnderlyingType> const&>( *tracker.getGenerator() );
+        return generator.get();
     }
 
-#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
+} // namespace Generators
+} // namespace Catch
 
-    namespace Matchers {
-        namespace Impl {
-        namespace NSStringMatchers {
+#define GENERATE( ... ) \
+    Catch::Generators::generate( CATCH_INTERNAL_LINEINFO, [ ]{ using namespace Catch::Generators; return makeGenerators( __VA_ARGS__ ); } )
+#define GENERATE_COPY( ... ) \
+    Catch::Generators::generate( CATCH_INTERNAL_LINEINFO, [=]{ using namespace Catch::Generators; return makeGenerators( __VA_ARGS__ ); } )
+#define GENERATE_REF( ... ) \
+    Catch::Generators::generate( CATCH_INTERNAL_LINEINFO, [&]{ using namespace Catch::Generators; return makeGenerators( __VA_ARGS__ ); } )
 
-            struct StringHolder : MatcherBase<NSString*>{
-                StringHolder( NSString* substr ) : m_substr( [substr copy] ){}
-                StringHolder( StringHolder const& other ) : m_substr( [other.m_substr copy] ){}
-                StringHolder() {
-                    arcSafeRelease( m_substr );
-                }
+// end catch_generators.hpp
+// start catch_generators_generic.hpp
 
-                bool match( NSString* arg ) const override {
-                    return false;
-                }
+namespace Catch {
+namespace Generators {
 
-                NSString* CATCH_ARC_STRONG m_substr;
-            };
+    template <typename T>
+    class TakeGenerator : public IGenerator<T> {
+        GeneratorWrapper<T> m_generator;
+        size_t m_returned = 0;
+        size_t m_target;
+    public:
+        TakeGenerator(size_t target, GeneratorWrapper<T>&& generator):
+            m_generator(std::move(generator)),
+            m_target(target)
+        {
+            assert(target != 0 && "Empty generators are not allowed");
+        }
+        T const& get() const override {
+            return m_generator.get();
+        }
+        bool next() override {
+            ++m_returned;
+            if (m_returned >= m_target) {
+                return false;
+            }
 
-            struct Equals : StringHolder {
-                Equals( NSString* substr ) : StringHolder( substr ){}
+            const auto success = m_generator.next();
+            // If the underlying generator does not contain enough values
+            // then we cut short as well
+            if (!success) {
+                m_returned = m_target;
+            }
+            return success;
+        }
+    };
 
-                bool match( NSString* str ) const override {
-                    return  (str != nil || m_substr == nil ) &&
-                            [str isEqualToString:m_substr];
-                }
+    template <typename T>
+    GeneratorWrapper<T> take(size_t target, GeneratorWrapper<T>&& generator) {
+        return GeneratorWrapper<T>(pf::make_unique<TakeGenerator<T>>(target, std::move(generator)));
+    }
 
-                std::string describe() const override {
-                    return "equals string: " + Catch::Detail::stringify( m_substr );
+    template <typename T, typename Predicate>
+    class FilterGenerator : public IGenerator<T> {
+        GeneratorWrapper<T> m_generator;
+        Predicate m_predicate;
+    public:
+        template <typename P = Predicate>
+        FilterGenerator(P&& pred, GeneratorWrapper<T>&& generator):
+            m_generator(std::move(generator)),
+            m_predicate(std::forward<P>(pred))
+        {
+            if (!m_predicate(m_generator.get())) {
+                // It might happen that there are no values that pass the
+                // filter. In that case we throw an exception.
+                auto has_initial_value = next();
+                if (!has_initial_value) {
+                    Catch::throw_exception(GeneratorException("No valid value found in filtered generator"));
                 }
-            };
+            }
+        }
 
-            struct Contains : StringHolder {
-                Contains( NSString* substr ) : StringHolder( substr ){}
+        T const& get() const override {
+            return m_generator.get();
+        }
 
-                bool match( NSString* str ) const {
-                    return  (str != nil || m_substr == nil ) &&
-                            [str rangeOfString:m_substr].location != NSNotFound;
-                }
+        bool next() override {
+            bool success = m_generator.next();
+            if (!success) {
+                return false;
+            }
+            while (!m_predicate(m_generator.get()) && (success = m_generator.next()) == true);
+            return success;
+        }
+    };
 
-                std::string describe() const override {
-                    return "contains string: " + Catch::Detail::stringify( m_substr );
-                }
-            };
+    template <typename T, typename Predicate>
+    GeneratorWrapper<T> filter(Predicate&& pred, GeneratorWrapper<T>&& generator) {
+        return GeneratorWrapper<T>(std::unique_ptr<IGenerator<T>>(pf::make_unique<FilterGenerator<T, Predicate>>(std::forward<Predicate>(pred), std::move(generator))));
+    }
 
-            struct StartsWith : StringHolder {
-                StartsWith( NSString* substr ) : StringHolder( substr ){}
+    template <typename T>
+    class RepeatGenerator : public IGenerator<T> {
+        static_assert(!std::is_same<T, bool>::value,
+            "RepeatGenerator currently does not support bools"
+            "because of std::vector<bool> specialization");
+        GeneratorWrapper<T> m_generator;
+        mutable std::vector<T> m_returned;
+        size_t m_target_repeats;
+        size_t m_current_repeat = 0;
+        size_t m_repeat_index = 0;
+    public:
+        RepeatGenerator(size_t repeats, GeneratorWrapper<T>&& generator):
+            m_generator(std::move(generator)),
+            m_target_repeats(repeats)
+        {
+            assert(m_target_repeats > 0 && "Repeat generator must repeat at least once");
+        }
 
-                bool match( NSString* str ) const override {
-                    return  (str != nil || m_substr == nil ) &&
-                            [str rangeOfString:m_substr].location == 0;
-                }
+        T const& get() const override {
+            if (m_current_repeat == 0) {
+                m_returned.push_back(m_generator.get());
+                return m_returned.back();
+            }
+            return m_returned[m_repeat_index];
+        }
 
-                std::string describe() const override {
-                    return "starts with: " + Catch::Detail::stringify( m_substr );
-                }
-            };
-            struct EndsWith : StringHolder {
-                EndsWith( NSString* substr ) : StringHolder( substr ){}
+        bool next() override {
+            // There are 2 basic cases:
+            // 1) We are still reading the generator
+            // 2) We are reading our own cache
 
-                bool match( NSString* str ) const override {
-                    return  (str != nil || m_substr == nil ) &&
-                            [str rangeOfString:m_substr].location == [str length] - [m_substr length];
+            // In the first case, we need to poke the underlying generator.
+            // If it happily moves, we are left in that state, otherwise it is time to start reading from our cache
+            if (m_current_repeat == 0) {
+                const auto success = m_generator.next();
+                if (!success) {
+                    ++m_current_repeat;
                 }
+                return m_current_repeat < m_target_repeats;
+            }
 
-                std::string describe() const override {
-                    return "ends with: " + Catch::Detail::stringify( m_substr );
-                }
-            };
+            // In the second case, we need to move indices forward and check that we haven't run up against the end
+            ++m_repeat_index;
+            if (m_repeat_index == m_returned.size()) {
+                m_repeat_index = 0;
+                ++m_current_repeat;
+            }
+            return m_current_repeat < m_target_repeats;
+        }
+    };
 
-        } // namespace NSStringMatchers
-        } // namespace Impl
+    template <typename T>
+    GeneratorWrapper<T> repeat(size_t repeats, GeneratorWrapper<T>&& generator) {
+        return GeneratorWrapper<T>(pf::make_unique<RepeatGenerator<T>>(repeats, std::move(generator)));
+    }
 
-        inline Impl::NSStringMatchers::Equals
-            Equals( NSString* substr ){ return Impl::NSStringMatchers::Equals( substr ); }
+    template <typename T, typename U, typename Func>
+    class MapGenerator : public IGenerator<T> {
+        // TBD: provide static assert for mapping function, for friendly error message
+        GeneratorWrapper<U> m_generator;
+        Func m_function;
+        // To avoid returning dangling reference, we have to save the values
+        T m_cache;
+    public:
+        template <typename F2 = Func>
+        MapGenerator(F2&& function, GeneratorWrapper<U>&& generator) :
+            m_generator(std::move(generator)),
+            m_function(std::forward<F2>(function)),
+            m_cache(m_function(m_generator.get()))
+        {}
 
-        inline Impl::NSStringMatchers::Contains
-            Contains( NSString* substr ){ return Impl::NSStringMatchers::Contains( substr ); }
+        T const& get() const override {
+            return m_cache;
+        }
+        bool next() override {
+            const auto success = m_generator.next();
+            if (success) {
+                m_cache = m_function(m_generator.get());
+            }
+            return success;
+        }
+    };
 
-        inline Impl::NSStringMatchers::StartsWith
-            StartsWith( NSString* substr ){ return Impl::NSStringMatchers::StartsWith( substr ); }
+    template <typename Func, typename U, typename T = FunctionReturnType<Func, U>>
+    GeneratorWrapper<T> map(Func&& function, GeneratorWrapper<U>&& generator) {
+        return GeneratorWrapper<T>(
+            pf::make_unique<MapGenerator<T, U, Func>>(std::forward<Func>(function), std::move(generator))
+        );
+    }
 
-        inline Impl::NSStringMatchers::EndsWith
-            EndsWith( NSString* substr ){ return Impl::NSStringMatchers::EndsWith( substr ); }
+    template <typename T, typename U, typename Func>
+    GeneratorWrapper<T> map(Func&& function, GeneratorWrapper<U>&& generator) {
+        return GeneratorWrapper<T>(
+            pf::make_unique<MapGenerator<T, U, Func>>(std::forward<Func>(function), std::move(generator))
+        );
+    }
 
-    } // namespace Matchers
+    template <typename T>
+    class ChunkGenerator final : public IGenerator<std::vector<T>> {
+        std::vector<T> m_chunk;
+        size_t m_chunk_size;
+        GeneratorWrapper<T> m_generator;
+        bool m_used_up = false;
+    public:
+        ChunkGenerator(size_t size, GeneratorWrapper<T> generator) :
+            m_chunk_size(size), m_generator(std::move(generator))
+        {
+            m_chunk.reserve(m_chunk_size);
+            if (m_chunk_size != 0) {
+                m_chunk.push_back(m_generator.get());
+                for (size_t i = 1; i < m_chunk_size; ++i) {
+                    if (!m_generator.next()) {
+                        Catch::throw_exception(GeneratorException("Not enough values to initialize the first chunk"));
+                    }
+                    m_chunk.push_back(m_generator.get());
+                }
+            }
+        }
+        std::vector<T> const& get() const override {
+            return m_chunk;
+        }
+        bool next() override {
+            m_chunk.clear();
+            for (size_t idx = 0; idx < m_chunk_size; ++idx) {
+                if (!m_generator.next()) {
+                    return false;
+                }
+                m_chunk.push_back(m_generator.get());
+            }
+            return true;
+        }
+    };
 
-    using namespace Matchers;
-
-#endif // CATCH_CONFIG_DISABLE_MATCHERS
+    template <typename T>
+    GeneratorWrapper<std::vector<T>> chunk(size_t size, GeneratorWrapper<T>&& generator) {
+        return GeneratorWrapper<std::vector<T>>(
+            pf::make_unique<ChunkGenerator<T>>(size, std::move(generator))
+        );
+    }
 
+} // namespace Generators
 } // namespace Catch
 
-///////////////////////////////////////////////////////////////////////////////
-#define OC_MAKE_UNIQUE_NAME( root, uniqueSuffix ) root##uniqueSuffix
-#define OC_TEST_CASE2( name, desc, uniqueSuffix ) \
-+(NSString*) OC_MAKE_UNIQUE_NAME( Catch_Name_test_, uniqueSuffix ) \
-{ \
-return @ name; \
-} \
-+(NSString*) OC_MAKE_UNIQUE_NAME( Catch_Description_test_, uniqueSuffix ) \
-{ \
-return @ desc; \
-} \
--(void) OC_MAKE_UNIQUE_NAME( Catch_TestCase_test_, uniqueSuffix )
-
-#define OC_TEST_CASE( name, desc ) OC_TEST_CASE2( name, desc, __LINE__ )
-
-// end catch_objc.hpp
-#endif
-
-#ifdef CATCH_CONFIG_EXTERNAL_INTERFACES
-// start catch_external_interfaces.h
-
-// start catch_reporter_bases.hpp
-
-// start catch_interfaces_reporter.h
-
-// start catch_config.hpp
+// end catch_generators_generic.hpp
+// start catch_generators_specific.hpp
 
-// start catch_test_spec_parser.h
+// start catch_context.h
 
-#ifdef __clang__
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wpadded"
-#endif
+#include <memory>
 
-// start catch_test_spec.h
+namespace Catch {
 
-#ifdef __clang__
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wpadded"
-#endif
+    struct IResultCapture;
+    struct IRunner;
+    struct IConfig;
+    struct IMutableContext;
 
-// start catch_wildcard_pattern.h
+    using IConfigPtr = std::shared_ptr<IConfig const>;
 
-namespace Catch
-{
-    class WildcardPattern {
-        enum WildcardPosition {
-            NoWildcard = 0,
-            WildcardAtStart = 1,
-            WildcardAtEnd = 2,
-            WildcardAtBothEnds = WildcardAtStart | WildcardAtEnd
-        };
+    struct IContext
+    {
+        virtual ~IContext();
 
-    public:
+        virtual IResultCapture* getResultCapture() = 0;
+        virtual IRunner* getRunner() = 0;
+        virtual IConfigPtr const& getConfig() const = 0;
+    };
 
-        WildcardPattern( std::string const& pattern, CaseSensitive::Choice caseSensitivity );
-        virtual ~WildcardPattern() = default;
-        virtual bool matches( std::string const& str ) const;
+    struct IMutableContext : IContext
+    {
+        virtual ~IMutableContext();
+        virtual void setResultCapture( IResultCapture* resultCapture ) = 0;
+        virtual void setRunner( IRunner* runner ) = 0;
+        virtual void setConfig( IConfigPtr const& config ) = 0;
 
     private:
-        std::string adjustCase( std::string const& str ) const;
-        CaseSensitive::Choice m_caseSensitivity;
-        WildcardPosition m_wildcard = NoWildcard;
-        std::string m_pattern;
+        static IMutableContext *currentContext;
+        friend IMutableContext& getCurrentMutableContext();
+        friend void cleanUpContext();
+        static void createContext();
     };
-}
-
-// end catch_wildcard_pattern.h
-#include <string>
-#include <vector>
-#include <memory>
-
-namespace Catch {
-
-    class TestSpec {
-        struct Pattern {
-            virtual ~Pattern();
-            virtual bool matches( TestCaseInfo const& testCase ) const = 0;
-        };
-        using PatternPtr = std::shared_ptr<Pattern>;
 
-        class NamePattern : public Pattern {
-        public:
-            NamePattern( std::string const& name );
-            virtual ~NamePattern();
-            virtual bool matches( TestCaseInfo const& testCase ) const override;
-        private:
-            WildcardPattern m_wildcardPattern;
-        };
-
-        class TagPattern : public Pattern {
-        public:
-            TagPattern( std::string const& tag );
-            virtual ~TagPattern();
-            virtual bool matches( TestCaseInfo const& testCase ) const override;
-        private:
-            std::string m_tag;
-        };
-
-        class ExcludedPattern : public Pattern {
-        public:
-            ExcludedPattern( PatternPtr const& underlyingPattern );
-            virtual ~ExcludedPattern();
-            virtual bool matches( TestCaseInfo const& testCase ) const override;
-        private:
-            PatternPtr m_underlyingPattern;
-        };
-
-        struct Filter {
-            std::vector<PatternPtr> m_patterns;
-
-            bool matches( TestCaseInfo const& testCase ) const;
-        };
+    inline IMutableContext& getCurrentMutableContext()
+    {
+        if( !IMutableContext::currentContext )
+            IMutableContext::createContext();
+        // NOLINTNEXTLINE(clang-analyzer-core.uninitialized.UndefReturn)
+        return *IMutableContext::currentContext;
+    }
 
-    public:
-        bool hasFilters() const;
-        bool matches( TestCaseInfo const& testCase ) const;
+    inline IContext& getCurrentContext()
+    {
+        return getCurrentMutableContext();
+    }
 
-    private:
-        std::vector<Filter> m_filters;
+    void cleanUpContext();
 
-        friend class TestSpecParser;
-    };
+    class SimplePcg32;
+    SimplePcg32& rng();
 }
 
-#ifdef __clang__
-#pragma clang diagnostic pop
-#endif
-
-// end catch_test_spec.h
-// start catch_interfaces_tag_alias_registry.h
+// end catch_context.h
+// start catch_interfaces_config.h
 
-#include <string>
+// start catch_option.hpp
 
 namespace Catch {
 
-    struct TagAlias;
-
-    struct ITagAliasRegistry {
-        virtual ~ITagAliasRegistry();
-        // Nullptr if not present
-        virtual TagAlias const* find( std::string const& alias ) const = 0;
-        virtual std::string expandAliases( std::string const& unexpandedTestSpec ) const = 0;
-
-        static ITagAliasRegistry const& get();
-    };
+    // An optional type
+    template<typename T>
+    class Option {
+    public:
+        Option() : nullableValue( nullptr ) {}
+        Option( T const& _value )
+        : nullableValue( new( storage ) T( _value ) )
+        {}
+        Option( Option const& _other )
+        : nullableValue( _other ? new( storage ) T( *_other ) : nullptr )
+        {}
 
-} // end namespace Catch
+        ~Option() {
+            reset();
+        }
 
-// end catch_interfaces_tag_alias_registry.h
-namespace Catch {
+        Option& operator= ( Option const& _other ) {
+            if( &_other != this ) {
+                reset();
+                if( _other )
+                    nullableValue = new( storage ) T( *_other );
+            }
+            return *this;
+        }
+        Option& operator = ( T const& _value ) {
+            reset();
+            nullableValue = new( storage ) T( _value );
+            return *this;
+        }
 
-    class TestSpecParser {
-        enum Mode{ None, Name, QuotedName, Tag, EscapedName };
-        Mode m_mode = None;
-        bool m_exclusion = false;
-        std::size_t m_start = std::string::npos, m_pos = 0;
-        std::string m_arg;
-        std::vector<std::size_t> m_escapeChars;
-        TestSpec::Filter m_currentFilter;
-        TestSpec m_testSpec;
-        ITagAliasRegistry const* m_tagAliases = nullptr;
+        void reset() {
+            if( nullableValue )
+                nullableValue->~T();
+            nullableValue = nullptr;
+        }
 
-    public:
-        TestSpecParser( ITagAliasRegistry const& tagAliases );
+        T& operator*() { return *nullableValue; }
+        T const& operator*() const { return *nullableValue; }
+        T* operator->() { return nullableValue; }
+        const T* operator->() const { return nullableValue; }
 
-        TestSpecParser& parse( std::string const& arg );
-        TestSpec testSpec();
+        T valueOr( T const& defaultValue ) const {
+            return nullableValue ? *nullableValue : defaultValue;
+        }
 
-    private:
-        void visitChar( char c );
-        void startNewMode( Mode mode, std::size_t start );
-        void escape();
-        std::string subString() const;
+        bool some() const { return nullableValue != nullptr; }
+        bool none() const { return nullableValue == nullptr; }
 
-        template<typename T>
-        void addPattern() {
-            std::string token = subString();
-            for( std::size_t i = 0; i < m_escapeChars.size(); ++i )
-                token = token.substr( 0, m_escapeChars[i]-m_start-i ) + token.substr( m_escapeChars[i]-m_start-i+1 );
-            m_escapeChars.clear();
-            if( startsWith( token, "exclude:" ) ) {
-                m_exclusion = true;
-                token = token.substr( 8 );
-            }
-            if( !token.empty() ) {
-                TestSpec::PatternPtr pattern = std::make_shared<T>( token );
-                if( m_exclusion )
-                    pattern = std::make_shared<TestSpec::ExcludedPattern>( pattern );
-                m_currentFilter.m_patterns.push_back( pattern );
-            }
-            m_exclusion = false;
-            m_mode = None;
+        bool operator !() const { return nullableValue == nullptr; }
+        explicit operator bool() const {
+            return some();
         }
 
-        void addFilter();
+    private:
+        T *nullableValue;
+        alignas(alignof(T)) char storage[sizeof(T)];
     };
-    TestSpec parseTestSpec( std::string const& arg );
-
-} // namespace Catch
-
-#ifdef __clang__
-#pragma clang diagnostic pop
-#endif
 
-// end catch_test_spec_parser.h
-// start catch_interfaces_config.h
+} // end namespace Catch
 
+// end catch_option.hpp
 #include <iosfwd>
 #include <string>
 #include <vector>
@@ -3300,1122 +4468,2916 @@ namespace Catch {
         virtual ShowDurations::OrNot showDurations() const = 0;
         virtual TestSpec const& testSpec() const = 0;
         virtual bool hasTestFilters() const = 0;
+        virtual std::vector<std::string> const& getTestsOrTags() const = 0;
         virtual RunTests::InWhatOrder runOrder() const = 0;
         virtual unsigned int rngSeed() const = 0;
-        virtual int benchmarkResolutionMultiple() const = 0;
         virtual UseColour::YesOrNo useColour() const = 0;
         virtual std::vector<std::string> const& getSectionsToRun() const = 0;
         virtual Verbosity verbosity() const = 0;
+
+        virtual bool benchmarkNoAnalysis() const = 0;
+        virtual int benchmarkSamples() const = 0;
+        virtual double benchmarkConfidenceInterval() const = 0;
+        virtual unsigned int benchmarkResamples() const = 0;
     };
 
     using IConfigPtr = std::shared_ptr<IConfig const>;
 }
 
 // end catch_interfaces_config.h
-// Libstdc++ doesn't like incomplete classes for unique_ptr
-
-#include <memory>
-#include <vector>
-#include <string>
+// start catch_random_number_generator.h
 
-#ifndef CATCH_CONFIG_CONSOLE_WIDTH
-#define CATCH_CONFIG_CONSOLE_WIDTH 80
-#endif
+#include <cstdint>
 
 namespace Catch {
 
-    struct IStream;
+    // This is a simple implementation of C++11 Uniform Random Number
+    // Generator. It does not provide all operators, because Catch2
+    // does not use it, but it should behave as expected inside stdlib's
+    // distributions.
+    // The implementation is based on the PCG family (http://pcg-random.org)
+    class SimplePcg32 {
+        using state_type = std::uint64_t;
+    public:
+        using result_type = std::uint32_t;
+        static constexpr result_type (min)() {
+            return 0;
+        }
+        static constexpr result_type (max)() {
+            return static_cast<result_type>(-1);
+        }
 
-    struct ConfigData {
-        bool listTests = false;
-        bool listTags = false;
-        bool listReporters = false;
-        bool listTestNamesOnly = false;
-
-        bool showSuccessfulTests = false;
-        bool shouldDebugBreak = false;
-        bool noThrow = false;
-        bool showHelp = false;
-        bool showInvisibles = false;
-        bool filenamesAsTags = false;
-        bool libIdentify = false;
+        // Provide some default initial state for the default constructor
+        SimplePcg32():SimplePcg32(0xed743cc4U) {}
 
-        int abortAfter = -1;
-        unsigned int rngSeed = 0;
-        int benchmarkResolutionMultiple = 100;
+        explicit SimplePcg32(result_type seed_);
 
-        Verbosity verbosity = Verbosity::Normal;
-        WarnAbout::What warnings = WarnAbout::Nothing;
-        ShowDurations::OrNot showDurations = ShowDurations::DefaultForReporter;
-        RunTests::InWhatOrder runOrder = RunTests::InDeclarationOrder;
-        UseColour::YesOrNo useColour = UseColour::Auto;
-        WaitForKeypress::When waitForKeypress = WaitForKeypress::Never;
+        void seed(result_type seed_);
+        void discard(uint64_t skip);
 
-        std::string outputFilename;
-        std::string name;
-        std::string processName;
+        result_type operator()();
 
-        std::vector<std::string> reporterNames;
-        std::vector<std::string> testsOrTags;
-        std::vector<std::string> sectionsToRun;
+    private:
+        friend bool operator==(SimplePcg32 const& lhs, SimplePcg32 const& rhs);
+        friend bool operator!=(SimplePcg32 const& lhs, SimplePcg32 const& rhs);
+
+        // In theory we also need operator<< and operator>>
+        // In practice we do not use them, so we will skip them for now
+
+        std::uint64_t m_state;
+        // This part of the state determines which "stream" of the numbers
+        // is chosen -- we take it as a constant for Catch2, so we only
+        // need to deal with seeding the main state.
+        // Picked by reading 8 bytes from `/dev/random` :-)
+        static const std::uint64_t s_inc = (0x13ed0cc53f939476ULL << 1ULL) | 1ULL;
     };
 
-    class Config : public IConfig {
-    public:
+} // end namespace Catch
 
-        Config() = default;
-        Config( ConfigData const& data );
-        virtual ~Config() = default;
+// end catch_random_number_generator.h
+#include <random>
 
-        std::string const& getFilename() const;
+namespace Catch {
+namespace Generators {
 
-        bool listTests() const;
-        bool listTestNamesOnly() const;
-        bool listTags() const;
-        bool listReporters() const;
+template <typename Float>
+class RandomFloatingGenerator final : public IGenerator<Float> {
+    Catch::SimplePcg32& m_rng;
+    std::uniform_real_distribution<Float> m_dist;
+    Float m_current_number;
+public:
 
-        std::string getProcessName() const;
+    RandomFloatingGenerator(Float a, Float b):
+        m_rng(rng()),
+        m_dist(a, b) {
+        static_cast<void>(next());
+    }
 
-        std::vector<std::string> const& getReporterNames() const;
-        std::vector<std::string> const& getTestsOrTags() const;
-        std::vector<std::string> const& getSectionsToRun() const override;
+    Float const& get() const override {
+        return m_current_number;
+    }
+    bool next() override {
+        m_current_number = m_dist(m_rng);
+        return true;
+    }
+};
 
-        virtual TestSpec const& testSpec() const override;
-        bool hasTestFilters() const override;
+template <typename Integer>
+class RandomIntegerGenerator final : public IGenerator<Integer> {
+    Catch::SimplePcg32& m_rng;
+    std::uniform_int_distribution<Integer> m_dist;
+    Integer m_current_number;
+public:
 
-        bool showHelp() const;
+    RandomIntegerGenerator(Integer a, Integer b):
+        m_rng(rng()),
+        m_dist(a, b) {
+        static_cast<void>(next());
+    }
 
-        // IConfig interface
-        bool allowThrows() const override;
-        std::ostream& stream() const override;
-        std::string name() const override;
-        bool includeSuccessfulResults() const override;
-        bool warnAboutMissingAssertions() const override;
-        bool warnAboutNoTests() const override;
-        ShowDurations::OrNot showDurations() const override;
-        RunTests::InWhatOrder runOrder() const override;
-        unsigned int rngSeed() const override;
-        int benchmarkResolutionMultiple() const override;
-        UseColour::YesOrNo useColour() const override;
-        bool shouldDebugBreak() const override;
-        int abortAfter() const override;
-        bool showInvisibles() const override;
-        Verbosity verbosity() const override;
+    Integer const& get() const override {
+        return m_current_number;
+    }
+    bool next() override {
+        m_current_number = m_dist(m_rng);
+        return true;
+    }
+};
 
-    private:
+// TODO: Ideally this would be also constrained against the various char types,
+//       but I don't expect users to run into that in practice.
+template <typename T>
+typename std::enable_if<std::is_integral<T>::value && !std::is_same<T, bool>::value,
+GeneratorWrapper<T>>::type
+random(T a, T b) {
+    return GeneratorWrapper<T>(
+        pf::make_unique<RandomIntegerGenerator<T>>(a, b)
+    );
+}
 
-        IStream const* openStream();
-        ConfigData m_data;
+template <typename T>
+typename std::enable_if<std::is_floating_point<T>::value,
+GeneratorWrapper<T>>::type
+random(T a, T b) {
+    return GeneratorWrapper<T>(
+        pf::make_unique<RandomFloatingGenerator<T>>(a, b)
+    );
+}
 
-        std::unique_ptr<IStream const> m_stream;
-        TestSpec m_testSpec;
-        bool m_hasTestFilters = false;
-    };
+template <typename T>
+class RangeGenerator final : public IGenerator<T> {
+    T m_current;
+    T m_end;
+    T m_step;
+    bool m_positive;
 
-} // end namespace Catch
+public:
+    RangeGenerator(T const& start, T const& end, T const& step):
+        m_current(start),
+        m_end(end),
+        m_step(step),
+        m_positive(m_step > T(0))
+    {
+        assert(m_current != m_end && "Range start and end cannot be equal");
+        assert(m_step != T(0) && "Step size cannot be zero");
+        assert(((m_positive && m_current <= m_end) || (!m_positive && m_current >= m_end)) && "Step moves away from end");
+    }
 
-// end catch_config.hpp
-// start catch_assertionresult.h
+    RangeGenerator(T const& start, T const& end):
+        RangeGenerator(start, end, (start < end) ? T(1) : T(-1))
+    {}
 
-#include <string>
+    T const& get() const override {
+        return m_current;
+    }
 
-namespace Catch {
+    bool next() override {
+        m_current += m_step;
+        return (m_positive) ? (m_current < m_end) : (m_current > m_end);
+    }
+};
 
-    struct AssertionResultData
-    {
-        AssertionResultData() = delete;
+template <typename T>
+GeneratorWrapper<T> range(T const& start, T const& end, T const& step) {
+    static_assert(std::is_arithmetic<T>::value && !std::is_same<T, bool>::value, "Type must be numeric");
+    return GeneratorWrapper<T>(pf::make_unique<RangeGenerator<T>>(start, end, step));
+}
 
-        AssertionResultData( ResultWas::OfType _resultType, LazyExpression const& _lazyExpression );
+template <typename T>
+GeneratorWrapper<T> range(T const& start, T const& end) {
+    static_assert(std::is_integral<T>::value && !std::is_same<T, bool>::value, "Type must be an integer");
+    return GeneratorWrapper<T>(pf::make_unique<RangeGenerator<T>>(start, end));
+}
 
-        std::string message;
-        mutable std::string reconstructedExpression;
-        LazyExpression lazyExpression;
-        ResultWas::OfType resultType;
+template <typename T>
+class IteratorGenerator final : public IGenerator<T> {
+    static_assert(!std::is_same<T, bool>::value,
+        "IteratorGenerator currently does not support bools"
+        "because of std::vector<bool> specialization");
 
-        std::string reconstructExpression() const;
-    };
+    std::vector<T> m_elems;
+    size_t m_current = 0;
+public:
+    template <typename InputIterator, typename InputSentinel>
+    IteratorGenerator(InputIterator first, InputSentinel last):m_elems(first, last) {
+        if (m_elems.empty()) {
+            Catch::throw_exception(GeneratorException("IteratorGenerator received no valid values"));
+        }
+    }
 
-    class AssertionResult {
-    public:
-        AssertionResult() = delete;
-        AssertionResult( AssertionInfo const& info, AssertionResultData const& data );
+    T const& get() const override {
+        return m_elems[m_current];
+    }
 
-        bool isOk() const;
-        bool succeeded() const;
-        ResultWas::OfType getResultType() const;
-        bool hasExpression() const;
-        bool hasMessage() const;
-        std::string getExpression() const;
-        std::string getExpressionInMacro() const;
-        bool hasExpandedExpression() const;
-        std::string getExpandedExpression() const;
-        std::string getMessage() const;
-        SourceLineInfo getSourceInfo() const;
-        StringRef getTestMacroName() const;
+    bool next() override {
+        ++m_current;
+        return m_current != m_elems.size();
+    }
+};
 
-    //protected:
-        AssertionInfo m_info;
-        AssertionResultData m_resultData;
-    };
+template <typename InputIterator,
+          typename InputSentinel,
+          typename ResultType = typename std::iterator_traits<InputIterator>::value_type>
+GeneratorWrapper<ResultType> from_range(InputIterator from, InputSentinel to) {
+    return GeneratorWrapper<ResultType>(pf::make_unique<IteratorGenerator<ResultType>>(from, to));
+}
 
-} // end namespace Catch
+template <typename Container,
+          typename ResultType = typename Container::value_type>
+GeneratorWrapper<ResultType> from_range(Container const& cnt) {
+    return GeneratorWrapper<ResultType>(pf::make_unique<IteratorGenerator<ResultType>>(cnt.begin(), cnt.end()));
+}
 
-// end catch_assertionresult.h
-// start catch_option.hpp
+} // namespace Generators
+} // namespace Catch
 
-namespace Catch {
+// end catch_generators_specific.hpp
 
-    // An optional type
-    template<typename T>
-    class Option {
-    public:
-        Option() : nullableValue( nullptr ) {}
-        Option( T const& _value )
-        : nullableValue( new( storage ) T( _value ) )
-        {}
-        Option( Option const& _other )
-        : nullableValue( _other ? new( storage ) T( *_other ) : nullptr )
-        {}
+// These files are included here so the single_include script doesn't put them
+// in the conditionally compiled sections
+// start catch_test_case_info.h
 
-        ~Option() {
-            reset();
-        }
+#include <string>
+#include <vector>
+#include <memory>
 
-        Option& operator= ( Option const& _other ) {
-            if( &_other != this ) {
-                reset();
-                if( _other )
-                    nullableValue = new( storage ) T( *_other );
-            }
-            return *this;
-        }
-        Option& operator = ( T const& _value ) {
-            reset();
-            nullableValue = new( storage ) T( _value );
-            return *this;
-        }
+#ifdef __clang__
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wpadded"
+#endif
 
-        void reset() {
-            if( nullableValue )
-                nullableValue->~T();
-            nullableValue = nullptr;
-        }
+namespace Catch {
 
-        T& operator*() { return *nullableValue; }
-        T const& operator*() const { return *nullableValue; }
-        T* operator->() { return nullableValue; }
-        const T* operator->() const { return nullableValue; }
+    struct ITestInvoker;
 
-        T valueOr( T const& defaultValue ) const {
-            return nullableValue ? *nullableValue : defaultValue;
-        }
+    struct TestCaseInfo {
+        enum SpecialProperties{
+            None = 0,
+            IsHidden = 1 << 1,
+            ShouldFail = 1 << 2,
+            MayFail = 1 << 3,
+            Throws = 1 << 4,
+            NonPortable = 1 << 5,
+            Benchmark = 1 << 6
+        };
 
-        bool some() const { return nullableValue != nullptr; }
-        bool none() const { return nullableValue == nullptr; }
+        TestCaseInfo(   std::string const& _name,
+                        std::string const& _className,
+                        std::string const& _description,
+                        std::vector<std::string> const& _tags,
+                        SourceLineInfo const& _lineInfo );
 
-        bool operator !() const { return nullableValue == nullptr; }
-        explicit operator bool() const {
-            return some();
-        }
+        friend void setTags( TestCaseInfo& testCaseInfo, std::vector<std::string> tags );
 
-    private:
-        T *nullableValue;
-        alignas(alignof(T)) char storage[sizeof(T)];
+        bool isHidden() const;
+        bool throws() const;
+        bool okToFail() const;
+        bool expectedToFail() const;
+
+        std::string tagsAsString() const;
+
+        std::string name;
+        std::string className;
+        std::string description;
+        std::vector<std::string> tags;
+        std::vector<std::string> lcaseTags;
+        SourceLineInfo lineInfo;
+        SpecialProperties properties;
     };
 
-} // end namespace Catch
+    class TestCase : public TestCaseInfo {
+    public:
 
-// end catch_option.hpp
-#include <string>
-#include <iosfwd>
-#include <map>
-#include <set>
-#include <memory>
+        TestCase( ITestInvoker* testCase, TestCaseInfo&& info );
 
-namespace Catch {
+        TestCase withName( std::string const& _newName ) const;
 
-    struct ReporterConfig {
-        explicit ReporterConfig( IConfigPtr const& _fullConfig );
+        void invoke() const;
 
-        ReporterConfig( IConfigPtr const& _fullConfig, std::ostream& _stream );
+        TestCaseInfo const& getTestCaseInfo() const;
 
-        std::ostream& stream() const;
-        IConfigPtr fullConfig() const;
+        bool operator == ( TestCase const& other ) const;
+        bool operator < ( TestCase const& other ) const;
 
     private:
-        std::ostream* m_stream;
-        IConfigPtr m_fullConfig;
+        std::shared_ptr<ITestInvoker> test;
     };
 
-    struct ReporterPreferences {
+    TestCase makeTestCase(  ITestInvoker* testCase,
+                            std::string const& className,
+                            NameAndTags const& nameAndTags,
+                            SourceLineInfo const& lineInfo );
+}
+
+#ifdef __clang__
+#pragma clang diagnostic pop
+#endif
+
+// end catch_test_case_info.h
+// start catch_interfaces_runner.h
+
+namespace Catch {
+
+    struct IRunner {
+        virtual ~IRunner();
+        virtual bool aborting() const = 0;
+    };
+}
+
+// end catch_interfaces_runner.h
+
+#ifdef __OBJC__
+// start catch_objc.hpp
+
+#import <objc/runtime.h>
+
+#include <string>
+
+// NB. Any general catch headers included here must be included
+// in catch.hpp first to make sure they are included by the single
+// header for non obj-usage
+
+///////////////////////////////////////////////////////////////////////////////
+// This protocol is really only here for (self) documenting purposes, since
+// all its methods are optional.
+@protocol OcFixture
+
+@optional
+
+-(void) setUp;
+-(void) tearDown;
+
+@end
+
+namespace Catch {
+
+    class OcMethod : public ITestInvoker {
+
+    public:
+        OcMethod( Class cls, SEL sel ) : m_cls( cls ), m_sel( sel ) {}
+
+        virtual void invoke() const {
+            id obj = [[m_cls alloc] init];
+
+            performOptionalSelector( obj, @selector(setUp)  );
+            performOptionalSelector( obj, m_sel );
+            performOptionalSelector( obj, @selector(tearDown)  );
+
+            arcSafeRelease( obj );
+        }
+    private:
+        virtual ~OcMethod() {}
+
+        Class m_cls;
+        SEL m_sel;
+    };
+
+    namespace Detail{
+
+        inline std::string getAnnotation(   Class cls,
+                                            std::string const& annotationName,
+                                            std::string const& testCaseName ) {
+            NSString* selStr = [[NSString alloc] initWithFormat:@"Catch_%s_%s", annotationName.c_str(), testCaseName.c_str()];
+            SEL sel = NSSelectorFromString( selStr );
+            arcSafeRelease( selStr );
+            id value = performOptionalSelector( cls, sel );
+            if( value )
+                return [(NSString*)value UTF8String];
+            return "";
+        }
+    }
+
+    inline std::size_t registerTestMethods() {
+        std::size_t noTestMethods = 0;
+        int noClasses = objc_getClassList( nullptr, 0 );
+
+        Class* classes = (CATCH_UNSAFE_UNRETAINED Class *)malloc( sizeof(Class) * noClasses);
+        objc_getClassList( classes, noClasses );
+
+        for( int c = 0; c < noClasses; c++ ) {
+            Class cls = classes[c];
+            {
+                u_int count;
+                Method* methods = class_copyMethodList( cls, &count );
+                for( u_int m = 0; m < count ; m++ ) {
+                    SEL selector = method_getName(methods[m]);
+                    std::string methodName = sel_getName(selector);
+                    if( startsWith( methodName, "Catch_TestCase_" ) ) {
+                        std::string testCaseName = methodName.substr( 15 );
+                        std::string name = Detail::getAnnotation( cls, "Name", testCaseName );
+                        std::string desc = Detail::getAnnotation( cls, "Description", testCaseName );
+                        const char* className = class_getName( cls );
+
+                        getMutableRegistryHub().registerTest( makeTestCase( new OcMethod( cls, selector ), className, NameAndTags( name.c_str(), desc.c_str() ), SourceLineInfo("",0) ) );
+                        noTestMethods++;
+                    }
+                }
+                free(methods);
+            }
+        }
+        return noTestMethods;
+    }
+
+#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
+
+    namespace Matchers {
+        namespace Impl {
+        namespace NSStringMatchers {
+
+            struct StringHolder : MatcherBase<NSString*>{
+                StringHolder( NSString* substr ) : m_substr( [substr copy] ){}
+                StringHolder( StringHolder const& other ) : m_substr( [other.m_substr copy] ){}
+                StringHolder() {
+                    arcSafeRelease( m_substr );
+                }
+
+                bool match( NSString* str ) const override {
+                    return false;
+                }
+
+                NSString* CATCH_ARC_STRONG m_substr;
+            };
+
+            struct Equals : StringHolder {
+                Equals( NSString* substr ) : StringHolder( substr ){}
+
+                bool match( NSString* str ) const override {
+                    return  (str != nil || m_substr == nil ) &&
+                            [str isEqualToString:m_substr];
+                }
+
+                std::string describe() const override {
+                    return "equals string: " + Catch::Detail::stringify( m_substr );
+                }
+            };
+
+            struct Contains : StringHolder {
+                Contains( NSString* substr ) : StringHolder( substr ){}
+
+                bool match( NSString* str ) const override {
+                    return  (str != nil || m_substr == nil ) &&
+                            [str rangeOfString:m_substr].location != NSNotFound;
+                }
+
+                std::string describe() const override {
+                    return "contains string: " + Catch::Detail::stringify( m_substr );
+                }
+            };
+
+            struct StartsWith : StringHolder {
+                StartsWith( NSString* substr ) : StringHolder( substr ){}
+
+                bool match( NSString* str ) const override {
+                    return  (str != nil || m_substr == nil ) &&
+                            [str rangeOfString:m_substr].location == 0;
+                }
+
+                std::string describe() const override {
+                    return "starts with: " + Catch::Detail::stringify( m_substr );
+                }
+            };
+            struct EndsWith : StringHolder {
+                EndsWith( NSString* substr ) : StringHolder( substr ){}
+
+                bool match( NSString* str ) const override {
+                    return  (str != nil || m_substr == nil ) &&
+                            [str rangeOfString:m_substr].location == [str length] - [m_substr length];
+                }
+
+                std::string describe() const override {
+                    return "ends with: " + Catch::Detail::stringify( m_substr );
+                }
+            };
+
+        } // namespace NSStringMatchers
+        } // namespace Impl
+
+        inline Impl::NSStringMatchers::Equals
+            Equals( NSString* substr ){ return Impl::NSStringMatchers::Equals( substr ); }
+
+        inline Impl::NSStringMatchers::Contains
+            Contains( NSString* substr ){ return Impl::NSStringMatchers::Contains( substr ); }
+
+        inline Impl::NSStringMatchers::StartsWith
+            StartsWith( NSString* substr ){ return Impl::NSStringMatchers::StartsWith( substr ); }
+
+        inline Impl::NSStringMatchers::EndsWith
+            EndsWith( NSString* substr ){ return Impl::NSStringMatchers::EndsWith( substr ); }
+
+    } // namespace Matchers
+
+    using namespace Matchers;
+
+#endif // CATCH_CONFIG_DISABLE_MATCHERS
+
+} // namespace Catch
+
+///////////////////////////////////////////////////////////////////////////////
+#define OC_MAKE_UNIQUE_NAME( root, uniqueSuffix ) root##uniqueSuffix
+#define OC_TEST_CASE2( name, desc, uniqueSuffix ) \
++(NSString*) OC_MAKE_UNIQUE_NAME( Catch_Name_test_, uniqueSuffix ) \
+{ \
+return @ name; \
+} \
++(NSString*) OC_MAKE_UNIQUE_NAME( Catch_Description_test_, uniqueSuffix ) \
+{ \
+return @ desc; \
+} \
+-(void) OC_MAKE_UNIQUE_NAME( Catch_TestCase_test_, uniqueSuffix )
+
+#define OC_TEST_CASE( name, desc ) OC_TEST_CASE2( name, desc, __LINE__ )
+
+// end catch_objc.hpp
+#endif
+
+// Benchmarking needs the externally-facing parts of reporters to work
+#if defined(CATCH_CONFIG_EXTERNAL_INTERFACES) || defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
+// start catch_external_interfaces.h
+
+// start catch_reporter_bases.hpp
+
+// start catch_interfaces_reporter.h
+
+// start catch_config.hpp
+
+// start catch_test_spec_parser.h
+
+#ifdef __clang__
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wpadded"
+#endif
+
+// start catch_test_spec.h
+
+#ifdef __clang__
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wpadded"
+#endif
+
+// start catch_wildcard_pattern.h
+
+namespace Catch
+{
+    class WildcardPattern {
+        enum WildcardPosition {
+            NoWildcard = 0,
+            WildcardAtStart = 1,
+            WildcardAtEnd = 2,
+            WildcardAtBothEnds = WildcardAtStart | WildcardAtEnd
+        };
+
+    public:
+
+        WildcardPattern( std::string const& pattern, CaseSensitive::Choice caseSensitivity );
+        virtual ~WildcardPattern() = default;
+        virtual bool matches( std::string const& str ) const;
+
+    private:
+        std::string normaliseString( std::string const& str ) const;
+        CaseSensitive::Choice m_caseSensitivity;
+        WildcardPosition m_wildcard = NoWildcard;
+        std::string m_pattern;
+    };
+}
+
+// end catch_wildcard_pattern.h
+#include <string>
+#include <vector>
+#include <memory>
+
+namespace Catch {
+
+    struct IConfig;
+
+    class TestSpec {
+        class Pattern {
+        public:
+            explicit Pattern( std::string const& name );
+            virtual ~Pattern();
+            virtual bool matches( TestCaseInfo const& testCase ) const = 0;
+            std::string const& name() const;
+        private:
+            std::string const m_name;
+        };
+        using PatternPtr = std::shared_ptr<Pattern>;
+
+        class NamePattern : public Pattern {
+        public:
+            explicit NamePattern( std::string const& name, std::string const& filterString );
+            bool matches( TestCaseInfo const& testCase ) const override;
+        private:
+            WildcardPattern m_wildcardPattern;
+        };
+
+        class TagPattern : public Pattern {
+        public:
+            explicit TagPattern( std::string const& tag, std::string const& filterString );
+            bool matches( TestCaseInfo const& testCase ) const override;
+        private:
+            std::string m_tag;
+        };
+
+        class ExcludedPattern : public Pattern {
+        public:
+            explicit ExcludedPattern( PatternPtr const& underlyingPattern );
+            bool matches( TestCaseInfo const& testCase ) const override;
+        private:
+            PatternPtr m_underlyingPattern;
+        };
+
+        struct Filter {
+            std::vector<PatternPtr> m_patterns;
+
+            bool matches( TestCaseInfo const& testCase ) const;
+            std::string name() const;
+        };
+
+    public:
+        struct FilterMatch {
+            std::string name;
+            std::vector<TestCase const*> tests;
+        };
+        using Matches = std::vector<FilterMatch>;
+        using vectorStrings = std::vector<std::string>;
+
+        bool hasFilters() const;
+        bool matches( TestCaseInfo const& testCase ) const;
+        Matches matchesByFilter( std::vector<TestCase> const& testCases, IConfig const& config ) const;
+        const vectorStrings & getInvalidArgs() const;
+
+    private:
+        std::vector<Filter> m_filters;
+        std::vector<std::string> m_invalidArgs;
+        friend class TestSpecParser;
+    };
+}
+
+#ifdef __clang__
+#pragma clang diagnostic pop
+#endif
+
+// end catch_test_spec.h
+// start catch_interfaces_tag_alias_registry.h
+
+#include <string>
+
+namespace Catch {
+
+    struct TagAlias;
+
+    struct ITagAliasRegistry {
+        virtual ~ITagAliasRegistry();
+        // Nullptr if not present
+        virtual TagAlias const* find( std::string const& alias ) const = 0;
+        virtual std::string expandAliases( std::string const& unexpandedTestSpec ) const = 0;
+
+        static ITagAliasRegistry const& get();
+    };
+
+} // end namespace Catch
+
+// end catch_interfaces_tag_alias_registry.h
+namespace Catch {
+
+    class TestSpecParser {
+        enum Mode{ None, Name, QuotedName, Tag, EscapedName };
+        Mode m_mode = None;
+        Mode lastMode = None;
+        bool m_exclusion = false;
+        std::size_t m_pos = 0;
+        std::size_t m_realPatternPos = 0;
+        std::string m_arg;
+        std::string m_substring;
+        std::string m_patternName;
+        std::vector<std::size_t> m_escapeChars;
+        TestSpec::Filter m_currentFilter;
+        TestSpec m_testSpec;
+        ITagAliasRegistry const* m_tagAliases = nullptr;
+
+    public:
+        TestSpecParser( ITagAliasRegistry const& tagAliases );
+
+        TestSpecParser& parse( std::string const& arg );
+        TestSpec testSpec();
+
+    private:
+        bool visitChar( char c );
+        void startNewMode( Mode mode );
+        bool processNoneChar( char c );
+        void processNameChar( char c );
+        bool processOtherChar( char c );
+        void endMode();
+        void escape();
+        bool isControlChar( char c ) const;
+        void saveLastMode();
+        void revertBackToLastMode();
+        void addFilter();
+        bool separate();
+
+        // Handles common preprocessing of the pattern for name/tag patterns
+        std::string preprocessPattern();
+        // Adds the current pattern as a test name
+        void addNamePattern();
+        // Adds the current pattern as a tag
+        void addTagPattern();
+
+        inline void addCharToPattern(char c) {
+            m_substring += c;
+            m_patternName += c;
+            m_realPatternPos++;
+        }
+
+    };
+    TestSpec parseTestSpec( std::string const& arg );
+
+} // namespace Catch
+
+#ifdef __clang__
+#pragma clang diagnostic pop
+#endif
+
+// end catch_test_spec_parser.h
+// Libstdc++ doesn't like incomplete classes for unique_ptr
+
+#include <memory>
+#include <vector>
+#include <string>
+
+#ifndef CATCH_CONFIG_CONSOLE_WIDTH
+#define CATCH_CONFIG_CONSOLE_WIDTH 80
+#endif
+
+namespace Catch {
+
+    struct IStream;
+
+    struct ConfigData {
+        bool listTests = false;
+        bool listTags = false;
+        bool listReporters = false;
+        bool listTestNamesOnly = false;
+
+        bool showSuccessfulTests = false;
+        bool shouldDebugBreak = false;
+        bool noThrow = false;
+        bool showHelp = false;
+        bool showInvisibles = false;
+        bool filenamesAsTags = false;
+        bool libIdentify = false;
+
+        int abortAfter = -1;
+        unsigned int rngSeed = 0;
+
+        bool benchmarkNoAnalysis = false;
+        unsigned int benchmarkSamples = 100;
+        double benchmarkConfidenceInterval = 0.95;
+        unsigned int benchmarkResamples = 100000;
+
+        Verbosity verbosity = Verbosity::Normal;
+        WarnAbout::What warnings = WarnAbout::Nothing;
+        ShowDurations::OrNot showDurations = ShowDurations::DefaultForReporter;
+        RunTests::InWhatOrder runOrder = RunTests::InDeclarationOrder;
+        UseColour::YesOrNo useColour = UseColour::Auto;
+        WaitForKeypress::When waitForKeypress = WaitForKeypress::Never;
+
+        std::string outputFilename;
+        std::string name;
+        std::string processName;
+#ifndef CATCH_CONFIG_DEFAULT_REPORTER
+#define CATCH_CONFIG_DEFAULT_REPORTER "console"
+#endif
+        std::string reporterName = CATCH_CONFIG_DEFAULT_REPORTER;
+#undef CATCH_CONFIG_DEFAULT_REPORTER
+
+        std::vector<std::string> testsOrTags;
+        std::vector<std::string> sectionsToRun;
+    };
+
+    class Config : public IConfig {
+    public:
+
+        Config() = default;
+        Config( ConfigData const& data );
+        virtual ~Config() = default;
+
+        std::string const& getFilename() const;
+
+        bool listTests() const;
+        bool listTestNamesOnly() const;
+        bool listTags() const;
+        bool listReporters() const;
+
+        std::string getProcessName() const;
+        std::string const& getReporterName() const;
+
+        std::vector<std::string> const& getTestsOrTags() const override;
+        std::vector<std::string> const& getSectionsToRun() const override;
+
+        TestSpec const& testSpec() const override;
+        bool hasTestFilters() const override;
+
+        bool showHelp() const;
+
+        // IConfig interface
+        bool allowThrows() const override;
+        std::ostream& stream() const override;
+        std::string name() const override;
+        bool includeSuccessfulResults() const override;
+        bool warnAboutMissingAssertions() const override;
+        bool warnAboutNoTests() const override;
+        ShowDurations::OrNot showDurations() const override;
+        RunTests::InWhatOrder runOrder() const override;
+        unsigned int rngSeed() const override;
+        UseColour::YesOrNo useColour() const override;
+        bool shouldDebugBreak() const override;
+        int abortAfter() const override;
+        bool showInvisibles() const override;
+        Verbosity verbosity() const override;
+        bool benchmarkNoAnalysis() const override;
+        int benchmarkSamples() const override;
+        double benchmarkConfidenceInterval() const override;
+        unsigned int benchmarkResamples() const override;
+
+    private:
+
+        IStream const* openStream();
+        ConfigData m_data;
+
+        std::unique_ptr<IStream const> m_stream;
+        TestSpec m_testSpec;
+        bool m_hasTestFilters = false;
+    };
+
+} // end namespace Catch
+
+// end catch_config.hpp
+// start catch_assertionresult.h
+
+#include <string>
+
+namespace Catch {
+
+    struct AssertionResultData
+    {
+        AssertionResultData() = delete;
+
+        AssertionResultData( ResultWas::OfType _resultType, LazyExpression const& _lazyExpression );
+
+        std::string message;
+        mutable std::string reconstructedExpression;
+        LazyExpression lazyExpression;
+        ResultWas::OfType resultType;
+
+        std::string reconstructExpression() const;
+    };
+
+    class AssertionResult {
+    public:
+        AssertionResult() = delete;
+        AssertionResult( AssertionInfo const& info, AssertionResultData const& data );
+
+        bool isOk() const;
+        bool succeeded() const;
+        ResultWas::OfType getResultType() const;
+        bool hasExpression() const;
+        bool hasMessage() const;
+        std::string getExpression() const;
+        std::string getExpressionInMacro() const;
+        bool hasExpandedExpression() const;
+        std::string getExpandedExpression() const;
+        std::string getMessage() const;
+        SourceLineInfo getSourceInfo() const;
+        StringRef getTestMacroName() const;
+
+    //protected:
+        AssertionInfo m_info;
+        AssertionResultData m_resultData;
+    };
+
+} // end namespace Catch
+
+// end catch_assertionresult.h
+#if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
+// start catch_estimate.hpp
+
+ // Statistics estimates
+
+
+namespace Catch {
+    namespace Benchmark {
+        template <typename Duration>
+        struct Estimate {
+            Duration point;
+            Duration lower_bound;
+            Duration upper_bound;
+            double confidence_interval;
+
+            template <typename Duration2>
+            operator Estimate<Duration2>() const {
+                return { point, lower_bound, upper_bound, confidence_interval };
+            }
+        };
+    } // namespace Benchmark
+} // namespace Catch
+
+// end catch_estimate.hpp
+// start catch_outlier_classification.hpp
+
+// Outlier information
+
+namespace Catch {
+    namespace Benchmark {
+        struct OutlierClassification {
+            int samples_seen = 0;
+            int low_severe = 0;     // more than 3 times IQR below Q1
+            int low_mild = 0;       // 1.5 to 3 times IQR below Q1
+            int high_mild = 0;      // 1.5 to 3 times IQR above Q3
+            int high_severe = 0;    // more than 3 times IQR above Q3
+
+            int total() const {
+                return low_severe + low_mild + high_mild + high_severe;
+            }
+        };
+    } // namespace Benchmark
+} // namespace Catch
+
+// end catch_outlier_classification.hpp
+#endif // CATCH_CONFIG_ENABLE_BENCHMARKING
+
+#include <string>
+#include <iosfwd>
+#include <map>
+#include <set>
+#include <memory>
+#include <algorithm>
+
+namespace Catch {
+
+    struct ReporterConfig {
+        explicit ReporterConfig( IConfigPtr const& _fullConfig );
+
+        ReporterConfig( IConfigPtr const& _fullConfig, std::ostream& _stream );
+
+        std::ostream& stream() const;
+        IConfigPtr fullConfig() const;
+
+    private:
+        std::ostream* m_stream;
+        IConfigPtr m_fullConfig;
+    };
+
+    struct ReporterPreferences {
         bool shouldRedirectStdOut = false;
+        bool shouldReportAllAssertions = false;
+    };
+
+    template<typename T>
+    struct LazyStat : Option<T> {
+        LazyStat& operator=( T const& _value ) {
+            Option<T>::operator=( _value );
+            used = false;
+            return *this;
+        }
+        void reset() {
+            Option<T>::reset();
+            used = false;
+        }
+        bool used = false;
+    };
+
+    struct TestRunInfo {
+        TestRunInfo( std::string const& _name );
+        std::string name;
+    };
+    struct GroupInfo {
+        GroupInfo(  std::string const& _name,
+                    std::size_t _groupIndex,
+                    std::size_t _groupsCount );
+
+        std::string name;
+        std::size_t groupIndex;
+        std::size_t groupsCounts;
+    };
+
+    struct AssertionStats {
+        AssertionStats( AssertionResult const& _assertionResult,
+                        std::vector<MessageInfo> const& _infoMessages,
+                        Totals const& _totals );
+
+        AssertionStats( AssertionStats const& )              = default;
+        AssertionStats( AssertionStats && )                  = default;
+        AssertionStats& operator = ( AssertionStats const& ) = delete;
+        AssertionStats& operator = ( AssertionStats && )     = delete;
+        virtual ~AssertionStats();
+
+        AssertionResult assertionResult;
+        std::vector<MessageInfo> infoMessages;
+        Totals totals;
+    };
+
+    struct SectionStats {
+        SectionStats(   SectionInfo const& _sectionInfo,
+                        Counts const& _assertions,
+                        double _durationInSeconds,
+                        bool _missingAssertions );
+        SectionStats( SectionStats const& )              = default;
+        SectionStats( SectionStats && )                  = default;
+        SectionStats& operator = ( SectionStats const& ) = default;
+        SectionStats& operator = ( SectionStats && )     = default;
+        virtual ~SectionStats();
+
+        SectionInfo sectionInfo;
+        Counts assertions;
+        double durationInSeconds;
+        bool missingAssertions;
+    };
+
+    struct TestCaseStats {
+        TestCaseStats(  TestCaseInfo const& _testInfo,
+                        Totals const& _totals,
+                        std::string const& _stdOut,
+                        std::string const& _stdErr,
+                        bool _aborting );
+
+        TestCaseStats( TestCaseStats const& )              = default;
+        TestCaseStats( TestCaseStats && )                  = default;
+        TestCaseStats& operator = ( TestCaseStats const& ) = default;
+        TestCaseStats& operator = ( TestCaseStats && )     = default;
+        virtual ~TestCaseStats();
+
+        TestCaseInfo testInfo;
+        Totals totals;
+        std::string stdOut;
+        std::string stdErr;
+        bool aborting;
+    };
+
+    struct TestGroupStats {
+        TestGroupStats( GroupInfo const& _groupInfo,
+                        Totals const& _totals,
+                        bool _aborting );
+        TestGroupStats( GroupInfo const& _groupInfo );
+
+        TestGroupStats( TestGroupStats const& )              = default;
+        TestGroupStats( TestGroupStats && )                  = default;
+        TestGroupStats& operator = ( TestGroupStats const& ) = default;
+        TestGroupStats& operator = ( TestGroupStats && )     = default;
+        virtual ~TestGroupStats();
+
+        GroupInfo groupInfo;
+        Totals totals;
+        bool aborting;
+    };
+
+    struct TestRunStats {
+        TestRunStats(   TestRunInfo const& _runInfo,
+                        Totals const& _totals,
+                        bool _aborting );
+
+        TestRunStats( TestRunStats const& )              = default;
+        TestRunStats( TestRunStats && )                  = default;
+        TestRunStats& operator = ( TestRunStats const& ) = default;
+        TestRunStats& operator = ( TestRunStats && )     = default;
+        virtual ~TestRunStats();
+
+        TestRunInfo runInfo;
+        Totals totals;
+        bool aborting;
+    };
+
+#if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
+    struct BenchmarkInfo {
+        std::string name;
+        double estimatedDuration;
+        int iterations;
+        int samples;
+        unsigned int resamples;
+        double clockResolution;
+        double clockCost;
+    };
+
+    template <class Duration>
+    struct BenchmarkStats {
+        BenchmarkInfo info;
+
+        std::vector<Duration> samples;
+        Benchmark::Estimate<Duration> mean;
+        Benchmark::Estimate<Duration> standardDeviation;
+        Benchmark::OutlierClassification outliers;
+        double outlierVariance;
+
+        template <typename Duration2>
+        operator BenchmarkStats<Duration2>() const {
+            std::vector<Duration2> samples2;
+            samples2.reserve(samples.size());
+            std::transform(samples.begin(), samples.end(), std::back_inserter(samples2), [](Duration d) { return Duration2(d); });
+            return {
+                info,
+                std::move(samples2),
+                mean,
+                standardDeviation,
+                outliers,
+                outlierVariance,
+            };
+        }
+    };
+#endif // CATCH_CONFIG_ENABLE_BENCHMARKING
+
+    struct IStreamingReporter {
+        virtual ~IStreamingReporter() = default;
+
+        // Implementing class must also provide the following static methods:
+        // static std::string getDescription();
+        // static std::set<Verbosity> getSupportedVerbosities()
+
+        virtual ReporterPreferences getPreferences() const = 0;
+
+        virtual void noMatchingTestCases( std::string const& spec ) = 0;
+
+        virtual void reportInvalidArguments(std::string const&) {}
+
+        virtual void testRunStarting( TestRunInfo const& testRunInfo ) = 0;
+        virtual void testGroupStarting( GroupInfo const& groupInfo ) = 0;
+
+        virtual void testCaseStarting( TestCaseInfo const& testInfo ) = 0;
+        virtual void sectionStarting( SectionInfo const& sectionInfo ) = 0;
+
+#if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
+        virtual void benchmarkPreparing( std::string const& ) {}
+        virtual void benchmarkStarting( BenchmarkInfo const& ) {}
+        virtual void benchmarkEnded( BenchmarkStats<> const& ) {}
+        virtual void benchmarkFailed( std::string const& ) {}
+#endif // CATCH_CONFIG_ENABLE_BENCHMARKING
+
+        virtual void assertionStarting( AssertionInfo const& assertionInfo ) = 0;
+
+        // The return value indicates if the messages buffer should be cleared:
+        virtual bool assertionEnded( AssertionStats const& assertionStats ) = 0;
+
+        virtual void sectionEnded( SectionStats const& sectionStats ) = 0;
+        virtual void testCaseEnded( TestCaseStats const& testCaseStats ) = 0;
+        virtual void testGroupEnded( TestGroupStats const& testGroupStats ) = 0;
+        virtual void testRunEnded( TestRunStats const& testRunStats ) = 0;
+
+        virtual void skipTest( TestCaseInfo const& testInfo ) = 0;
+
+        // Default empty implementation provided
+        virtual void fatalErrorEncountered( StringRef name );
+
+        virtual bool isMulti() const;
+    };
+    using IStreamingReporterPtr = std::unique_ptr<IStreamingReporter>;
+
+    struct IReporterFactory {
+        virtual ~IReporterFactory();
+        virtual IStreamingReporterPtr create( ReporterConfig const& config ) const = 0;
+        virtual std::string getDescription() const = 0;
+    };
+    using IReporterFactoryPtr = std::shared_ptr<IReporterFactory>;
+
+    struct IReporterRegistry {
+        using FactoryMap = std::map<std::string, IReporterFactoryPtr>;
+        using Listeners = std::vector<IReporterFactoryPtr>;
+
+        virtual ~IReporterRegistry();
+        virtual IStreamingReporterPtr create( std::string const& name, IConfigPtr const& config ) const = 0;
+        virtual FactoryMap const& getFactories() const = 0;
+        virtual Listeners const& getListeners() const = 0;
+    };
+
+} // end namespace Catch
+
+// end catch_interfaces_reporter.h
+#include <algorithm>
+#include <cstring>
+#include <cfloat>
+#include <cstdio>
+#include <cassert>
+#include <memory>
+#include <ostream>
+
+namespace Catch {
+    void prepareExpandedExpression(AssertionResult& result);
+
+    // Returns double formatted as %.3f (format expected on output)
+    std::string getFormattedDuration( double duration );
+
+    std::string serializeFilters( std::vector<std::string> const& container );
+
+    template<typename DerivedT>
+    struct StreamingReporterBase : IStreamingReporter {
+
+        StreamingReporterBase( ReporterConfig const& _config )
+        :   m_config( _config.fullConfig() ),
+            stream( _config.stream() )
+        {
+            m_reporterPrefs.shouldRedirectStdOut = false;
+            if( !DerivedT::getSupportedVerbosities().count( m_config->verbosity() ) )
+                CATCH_ERROR( "Verbosity level not supported by this reporter" );
+        }
+
+        ReporterPreferences getPreferences() const override {
+            return m_reporterPrefs;
+        }
+
+        static std::set<Verbosity> getSupportedVerbosities() {
+            return { Verbosity::Normal };
+        }
+
+        ~StreamingReporterBase() override = default;
+
+        void noMatchingTestCases(std::string const&) override {}
+
+        void reportInvalidArguments(std::string const&) override {}
+
+        void testRunStarting(TestRunInfo const& _testRunInfo) override {
+            currentTestRunInfo = _testRunInfo;
+        }
+
+        void testGroupStarting(GroupInfo const& _groupInfo) override {
+            currentGroupInfo = _groupInfo;
+        }
+
+        void testCaseStarting(TestCaseInfo const& _testInfo) override  {
+            currentTestCaseInfo = _testInfo;
+        }
+        void sectionStarting(SectionInfo const& _sectionInfo) override {
+            m_sectionStack.push_back(_sectionInfo);
+        }
+
+        void sectionEnded(SectionStats const& /* _sectionStats */) override {
+            m_sectionStack.pop_back();
+        }
+        void testCaseEnded(TestCaseStats const& /* _testCaseStats */) override {
+            currentTestCaseInfo.reset();
+        }
+        void testGroupEnded(TestGroupStats const& /* _testGroupStats */) override {
+            currentGroupInfo.reset();
+        }
+        void testRunEnded(TestRunStats const& /* _testRunStats */) override {
+            currentTestCaseInfo.reset();
+            currentGroupInfo.reset();
+            currentTestRunInfo.reset();
+        }
+
+        void skipTest(TestCaseInfo const&) override {
+            // Don't do anything with this by default.
+            // It can optionally be overridden in the derived class.
+        }
+
+        IConfigPtr m_config;
+        std::ostream& stream;
+
+        LazyStat<TestRunInfo> currentTestRunInfo;
+        LazyStat<GroupInfo> currentGroupInfo;
+        LazyStat<TestCaseInfo> currentTestCaseInfo;
+
+        std::vector<SectionInfo> m_sectionStack;
+        ReporterPreferences m_reporterPrefs;
+    };
+
+    template<typename DerivedT>
+    struct CumulativeReporterBase : IStreamingReporter {
+        template<typename T, typename ChildNodeT>
+        struct Node {
+            explicit Node( T const& _value ) : value( _value ) {}
+            virtual ~Node() {}
+
+            using ChildNodes = std::vector<std::shared_ptr<ChildNodeT>>;
+            T value;
+            ChildNodes children;
+        };
+        struct SectionNode {
+            explicit SectionNode(SectionStats const& _stats) : stats(_stats) {}
+            virtual ~SectionNode() = default;
+
+            bool operator == (SectionNode const& other) const {
+                return stats.sectionInfo.lineInfo == other.stats.sectionInfo.lineInfo;
+            }
+            bool operator == (std::shared_ptr<SectionNode> const& other) const {
+                return operator==(*other);
+            }
+
+            SectionStats stats;
+            using ChildSections = std::vector<std::shared_ptr<SectionNode>>;
+            using Assertions = std::vector<AssertionStats>;
+            ChildSections childSections;
+            Assertions assertions;
+            std::string stdOut;
+            std::string stdErr;
+        };
+
+        struct BySectionInfo {
+            BySectionInfo( SectionInfo const& other ) : m_other( other ) {}
+            BySectionInfo( BySectionInfo const& other ) : m_other( other.m_other ) {}
+            bool operator() (std::shared_ptr<SectionNode> const& node) const {
+                return ((node->stats.sectionInfo.name == m_other.name) &&
+                        (node->stats.sectionInfo.lineInfo == m_other.lineInfo));
+            }
+            void operator=(BySectionInfo const&) = delete;
+
+        private:
+            SectionInfo const& m_other;
+        };
+
+        using TestCaseNode = Node<TestCaseStats, SectionNode>;
+        using TestGroupNode = Node<TestGroupStats, TestCaseNode>;
+        using TestRunNode = Node<TestRunStats, TestGroupNode>;
+
+        CumulativeReporterBase( ReporterConfig const& _config )
+        :   m_config( _config.fullConfig() ),
+            stream( _config.stream() )
+        {
+            m_reporterPrefs.shouldRedirectStdOut = false;
+            if( !DerivedT::getSupportedVerbosities().count( m_config->verbosity() ) )
+                CATCH_ERROR( "Verbosity level not supported by this reporter" );
+        }
+        ~CumulativeReporterBase() override = default;
+
+        ReporterPreferences getPreferences() const override {
+            return m_reporterPrefs;
+        }
+
+        static std::set<Verbosity> getSupportedVerbosities() {
+            return { Verbosity::Normal };
+        }
+
+        void testRunStarting( TestRunInfo const& ) override {}
+        void testGroupStarting( GroupInfo const& ) override {}
+
+        void testCaseStarting( TestCaseInfo const& ) override {}
+
+        void sectionStarting( SectionInfo const& sectionInfo ) override {
+            SectionStats incompleteStats( sectionInfo, Counts(), 0, false );
+            std::shared_ptr<SectionNode> node;
+            if( m_sectionStack.empty() ) {
+                if( !m_rootSection )
+                    m_rootSection = std::make_shared<SectionNode>( incompleteStats );
+                node = m_rootSection;
+            }
+            else {
+                SectionNode& parentNode = *m_sectionStack.back();
+                auto it =
+                    std::find_if(   parentNode.childSections.begin(),
+                                    parentNode.childSections.end(),
+                                    BySectionInfo( sectionInfo ) );
+                if( it == parentNode.childSections.end() ) {
+                    node = std::make_shared<SectionNode>( incompleteStats );
+                    parentNode.childSections.push_back( node );
+                }
+                else
+                    node = *it;
+            }
+            m_sectionStack.push_back( node );
+            m_deepestSection = std::move(node);
+        }
+
+        void assertionStarting(AssertionInfo const&) override {}
+
+        bool assertionEnded(AssertionStats const& assertionStats) override {
+            assert(!m_sectionStack.empty());
+            // AssertionResult holds a pointer to a temporary DecomposedExpression,
+            // which getExpandedExpression() calls to build the expression string.
+            // Our section stack copy of the assertionResult will likely outlive the
+            // temporary, so it must be expanded or discarded now to avoid calling
+            // a destroyed object later.
+            prepareExpandedExpression(const_cast<AssertionResult&>( assertionStats.assertionResult ) );
+            SectionNode& sectionNode = *m_sectionStack.back();
+            sectionNode.assertions.push_back(assertionStats);
+            return true;
+        }
+        void sectionEnded(SectionStats const& sectionStats) override {
+            assert(!m_sectionStack.empty());
+            SectionNode& node = *m_sectionStack.back();
+            node.stats = sectionStats;
+            m_sectionStack.pop_back();
+        }
+        void testCaseEnded(TestCaseStats const& testCaseStats) override {
+            auto node = std::make_shared<TestCaseNode>(testCaseStats);
+            assert(m_sectionStack.size() == 0);
+            node->children.push_back(m_rootSection);
+            m_testCases.push_back(node);
+            m_rootSection.reset();
+
+            assert(m_deepestSection);
+            m_deepestSection->stdOut = testCaseStats.stdOut;
+            m_deepestSection->stdErr = testCaseStats.stdErr;
+        }
+        void testGroupEnded(TestGroupStats const& testGroupStats) override {
+            auto node = std::make_shared<TestGroupNode>(testGroupStats);
+            node->children.swap(m_testCases);
+            m_testGroups.push_back(node);
+        }
+        void testRunEnded(TestRunStats const& testRunStats) override {
+            auto node = std::make_shared<TestRunNode>(testRunStats);
+            node->children.swap(m_testGroups);
+            m_testRuns.push_back(node);
+            testRunEndedCumulative();
+        }
+        virtual void testRunEndedCumulative() = 0;
+
+        void skipTest(TestCaseInfo const&) override {}
+
+        IConfigPtr m_config;
+        std::ostream& stream;
+        std::vector<AssertionStats> m_assertions;
+        std::vector<std::vector<std::shared_ptr<SectionNode>>> m_sections;
+        std::vector<std::shared_ptr<TestCaseNode>> m_testCases;
+        std::vector<std::shared_ptr<TestGroupNode>> m_testGroups;
+
+        std::vector<std::shared_ptr<TestRunNode>> m_testRuns;
+
+        std::shared_ptr<SectionNode> m_rootSection;
+        std::shared_ptr<SectionNode> m_deepestSection;
+        std::vector<std::shared_ptr<SectionNode>> m_sectionStack;
+        ReporterPreferences m_reporterPrefs;
+    };
+
+    template<char C>
+    char const* getLineOfChars() {
+        static char line[CATCH_CONFIG_CONSOLE_WIDTH] = {0};
+        if( !*line ) {
+            std::memset( line, C, CATCH_CONFIG_CONSOLE_WIDTH-1 );
+            line[CATCH_CONFIG_CONSOLE_WIDTH-1] = 0;
+        }
+        return line;
+    }
+
+    struct TestEventListenerBase : StreamingReporterBase<TestEventListenerBase> {
+        TestEventListenerBase( ReporterConfig const& _config );
+
+        static std::set<Verbosity> getSupportedVerbosities();
+
+        void assertionStarting(AssertionInfo const&) override;
+        bool assertionEnded(AssertionStats const&) override;
+    };
+
+} // end namespace Catch
+
+// end catch_reporter_bases.hpp
+// start catch_console_colour.h
+
+namespace Catch {
+
+    struct Colour {
+        enum Code {
+            None = 0,
+
+            White,
+            Red,
+            Green,
+            Blue,
+            Cyan,
+            Yellow,
+            Grey,
+
+            Bright = 0x10,
+
+            BrightRed = Bright | Red,
+            BrightGreen = Bright | Green,
+            LightGrey = Bright | Grey,
+            BrightWhite = Bright | White,
+            BrightYellow = Bright | Yellow,
+
+            // By intention
+            FileName = LightGrey,
+            Warning = BrightYellow,
+            ResultError = BrightRed,
+            ResultSuccess = BrightGreen,
+            ResultExpectedFailure = Warning,
+
+            Error = BrightRed,
+            Success = Green,
+
+            OriginalExpression = Cyan,
+            ReconstructedExpression = BrightYellow,
+
+            SecondaryText = LightGrey,
+            Headers = White
+        };
+
+        // Use constructed object for RAII guard
+        Colour( Code _colourCode );
+        Colour( Colour&& other ) noexcept;
+        Colour& operator=( Colour&& other ) noexcept;
+        ~Colour();
+
+        // Use static method for one-shot changes
+        static void use( Code _colourCode );
+
+    private:
+        bool m_moved = false;
+    };
+
+    std::ostream& operator << ( std::ostream& os, Colour const& );
+
+} // end namespace Catch
+
+// end catch_console_colour.h
+// start catch_reporter_registrars.hpp
+
+
+namespace Catch {
+
+    template<typename T>
+    class ReporterRegistrar {
+
+        class ReporterFactory : public IReporterFactory {
+
+            IStreamingReporterPtr create( ReporterConfig const& config ) const override {
+                return std::unique_ptr<T>( new T( config ) );
+            }
+
+            std::string getDescription() const override {
+                return T::getDescription();
+            }
+        };
+
+    public:
+
+        explicit ReporterRegistrar( std::string const& name ) {
+            getMutableRegistryHub().registerReporter( name, std::make_shared<ReporterFactory>() );
+        }
     };
 
     template<typename T>
-    struct LazyStat : Option<T> {
-        LazyStat& operator=( T const& _value ) {
-            Option<T>::operator=( _value );
-            used = false;
-            return *this;
-        }
-        void reset() {
-            Option<T>::reset();
-            used = false;
+    class ListenerRegistrar {
+
+        class ListenerFactory : public IReporterFactory {
+
+            IStreamingReporterPtr create( ReporterConfig const& config ) const override {
+                return std::unique_ptr<T>( new T( config ) );
+            }
+            std::string getDescription() const override {
+                return std::string();
+            }
+        };
+
+    public:
+
+        ListenerRegistrar() {
+            getMutableRegistryHub().registerListener( std::make_shared<ListenerFactory>() );
         }
-        bool used = false;
     };
+}
 
-    struct TestRunInfo {
-        TestRunInfo( std::string const& _name );
-        std::string name;
-    };
-    struct GroupInfo {
-        GroupInfo(  std::string const& _name,
-                    std::size_t _groupIndex,
-                    std::size_t _groupsCount );
+#if !defined(CATCH_CONFIG_DISABLE)
 
-        std::string name;
-        std::size_t groupIndex;
-        std::size_t groupsCounts;
-    };
+#define CATCH_REGISTER_REPORTER( name, reporterType ) \
+    CATCH_INTERNAL_START_WARNINGS_SUPPRESSION         \
+    CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS          \
+    namespace{ Catch::ReporterRegistrar<reporterType> catch_internal_RegistrarFor##reporterType( name ); } \
+    CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION
 
-    struct AssertionStats {
-        AssertionStats( AssertionResult const& _assertionResult,
-                        std::vector<MessageInfo> const& _infoMessages,
-                        Totals const& _totals );
+#define CATCH_REGISTER_LISTENER( listenerType ) \
+    CATCH_INTERNAL_START_WARNINGS_SUPPRESSION   \
+    CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS    \
+    namespace{ Catch::ListenerRegistrar<listenerType> catch_internal_RegistrarFor##listenerType; } \
+    CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION
+#else // CATCH_CONFIG_DISABLE
 
-        AssertionStats( AssertionStats const& )              = default;
-        AssertionStats( AssertionStats && )                  = default;
-        AssertionStats& operator = ( AssertionStats const& ) = default;
-        AssertionStats& operator = ( AssertionStats && )     = default;
-        virtual ~AssertionStats();
+#define CATCH_REGISTER_REPORTER(name, reporterType)
+#define CATCH_REGISTER_LISTENER(listenerType)
 
-        AssertionResult assertionResult;
-        std::vector<MessageInfo> infoMessages;
-        Totals totals;
-    };
+#endif // CATCH_CONFIG_DISABLE
 
-    struct SectionStats {
-        SectionStats(   SectionInfo const& _sectionInfo,
-                        Counts const& _assertions,
-                        double _durationInSeconds,
-                        bool _missingAssertions );
-        SectionStats( SectionStats const& )              = default;
-        SectionStats( SectionStats && )                  = default;
-        SectionStats& operator = ( SectionStats const& ) = default;
-        SectionStats& operator = ( SectionStats && )     = default;
-        virtual ~SectionStats();
+// end catch_reporter_registrars.hpp
+// Allow users to base their work off existing reporters
+// start catch_reporter_compact.h
 
-        SectionInfo sectionInfo;
-        Counts assertions;
-        double durationInSeconds;
-        bool missingAssertions;
-    };
+namespace Catch {
 
-    struct TestCaseStats {
-        TestCaseStats(  TestCaseInfo const& _testInfo,
-                        Totals const& _totals,
-                        std::string const& _stdOut,
-                        std::string const& _stdErr,
-                        bool _aborting );
+    struct CompactReporter : StreamingReporterBase<CompactReporter> {
 
-        TestCaseStats( TestCaseStats const& )              = default;
-        TestCaseStats( TestCaseStats && )                  = default;
-        TestCaseStats& operator = ( TestCaseStats const& ) = default;
-        TestCaseStats& operator = ( TestCaseStats && )     = default;
-        virtual ~TestCaseStats();
+        using StreamingReporterBase::StreamingReporterBase;
 
-        TestCaseInfo testInfo;
-        Totals totals;
-        std::string stdOut;
-        std::string stdErr;
-        bool aborting;
-    };
+        ~CompactReporter() override;
 
-    struct TestGroupStats {
-        TestGroupStats( GroupInfo const& _groupInfo,
-                        Totals const& _totals,
-                        bool _aborting );
-        TestGroupStats( GroupInfo const& _groupInfo );
+        static std::string getDescription();
 
-        TestGroupStats( TestGroupStats const& )              = default;
-        TestGroupStats( TestGroupStats && )                  = default;
-        TestGroupStats& operator = ( TestGroupStats const& ) = default;
-        TestGroupStats& operator = ( TestGroupStats && )     = default;
-        virtual ~TestGroupStats();
+        ReporterPreferences getPreferences() const override;
 
-        GroupInfo groupInfo;
-        Totals totals;
-        bool aborting;
-    };
+        void noMatchingTestCases(std::string const& spec) override;
 
-    struct TestRunStats {
-        TestRunStats(   TestRunInfo const& _runInfo,
-                        Totals const& _totals,
-                        bool _aborting );
+        void assertionStarting(AssertionInfo const&) override;
 
-        TestRunStats( TestRunStats const& )              = default;
-        TestRunStats( TestRunStats && )                  = default;
-        TestRunStats& operator = ( TestRunStats const& ) = default;
-        TestRunStats& operator = ( TestRunStats && )     = default;
-        virtual ~TestRunStats();
+        bool assertionEnded(AssertionStats const& _assertionStats) override;
 
-        TestRunInfo runInfo;
-        Totals totals;
-        bool aborting;
-    };
+        void sectionEnded(SectionStats const& _sectionStats) override;
+
+        void testRunEnded(TestRunStats const& _testRunStats) override;
 
-    struct BenchmarkInfo {
-        std::string name;
     };
-    struct BenchmarkStats {
-        BenchmarkInfo info;
-        std::size_t iterations;
-        uint64_t elapsedTimeInNanoseconds;
+
+} // end namespace Catch
+
+// end catch_reporter_compact.h
+// start catch_reporter_console.h
+
+#if defined(_MSC_VER)
+#pragma warning(push)
+#pragma warning(disable:4061) // Not all labels are EXPLICITLY handled in switch
+                              // Note that 4062 (not all labels are handled
+                              // and default is missing) is enabled
+#endif
+
+namespace Catch {
+    // Fwd decls
+    struct SummaryColumn;
+    class TablePrinter;
+
+    struct ConsoleReporter : StreamingReporterBase<ConsoleReporter> {
+        std::unique_ptr<TablePrinter> m_tablePrinter;
+
+        ConsoleReporter(ReporterConfig const& config);
+        ~ConsoleReporter() override;
+        static std::string getDescription();
+
+        void noMatchingTestCases(std::string const& spec) override;
+
+        void reportInvalidArguments(std::string const&arg) override;
+
+        void assertionStarting(AssertionInfo const&) override;
+
+        bool assertionEnded(AssertionStats const& _assertionStats) override;
+
+        void sectionStarting(SectionInfo const& _sectionInfo) override;
+        void sectionEnded(SectionStats const& _sectionStats) override;
+
+#if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
+        void benchmarkPreparing(std::string const& name) override;
+        void benchmarkStarting(BenchmarkInfo const& info) override;
+        void benchmarkEnded(BenchmarkStats<> const& stats) override;
+        void benchmarkFailed(std::string const& error) override;
+#endif // CATCH_CONFIG_ENABLE_BENCHMARKING
+
+        void testCaseEnded(TestCaseStats const& _testCaseStats) override;
+        void testGroupEnded(TestGroupStats const& _testGroupStats) override;
+        void testRunEnded(TestRunStats const& _testRunStats) override;
+        void testRunStarting(TestRunInfo const& _testRunInfo) override;
+    private:
+
+        void lazyPrint();
+
+        void lazyPrintWithoutClosingBenchmarkTable();
+        void lazyPrintRunInfo();
+        void lazyPrintGroupInfo();
+        void printTestCaseAndSectionHeader();
+
+        void printClosedHeader(std::string const& _name);
+        void printOpenHeader(std::string const& _name);
+
+        // if string has a : in first line will set indent to follow it on
+        // subsequent lines
+        void printHeaderString(std::string const& _string, std::size_t indent = 0);
+
+        void printTotals(Totals const& totals);
+        void printSummaryRow(std::string const& label, std::vector<SummaryColumn> const& cols, std::size_t row);
+
+        void printTotalsDivider(Totals const& totals);
+        void printSummaryDivider();
+        void printTestFilters();
+
+    private:
+        bool m_headerPrinted = false;
     };
 
-    struct IStreamingReporter {
-        virtual ~IStreamingReporter() = default;
+} // end namespace Catch
 
-        // Implementing class must also provide the following static methods:
-        // static std::string getDescription();
-        // static std::set<Verbosity> getSupportedVerbosities()
+#if defined(_MSC_VER)
+#pragma warning(pop)
+#endif
 
-        virtual ReporterPreferences getPreferences() const = 0;
+// end catch_reporter_console.h
+// start catch_reporter_junit.h
 
-        virtual void noMatchingTestCases( std::string const& spec ) = 0;
+// start catch_xmlwriter.h
 
-        virtual void testRunStarting( TestRunInfo const& testRunInfo ) = 0;
-        virtual void testGroupStarting( GroupInfo const& groupInfo ) = 0;
+#include <vector>
 
-        virtual void testCaseStarting( TestCaseInfo const& testInfo ) = 0;
-        virtual void sectionStarting( SectionInfo const& sectionInfo ) = 0;
+namespace Catch {
+    enum class XmlFormatting {
+        None = 0x00,
+        Indent = 0x01,
+        Newline = 0x02,
+    };
 
-        // *** experimental ***
-        virtual void benchmarkStarting( BenchmarkInfo const& ) {}
+    XmlFormatting operator | (XmlFormatting lhs, XmlFormatting rhs);
+    XmlFormatting operator & (XmlFormatting lhs, XmlFormatting rhs);
 
-        virtual void assertionStarting( AssertionInfo const& assertionInfo ) = 0;
+    class XmlEncode {
+    public:
+        enum ForWhat { ForTextNodes, ForAttributes };
 
-        // The return value indicates if the messages buffer should be cleared:
-        virtual bool assertionEnded( AssertionStats const& assertionStats ) = 0;
+        XmlEncode( std::string const& str, ForWhat forWhat = ForTextNodes );
 
-        // *** experimental ***
-        virtual void benchmarkEnded( BenchmarkStats const& ) {}
+        void encodeTo( std::ostream& os ) const;
 
-        virtual void sectionEnded( SectionStats const& sectionStats ) = 0;
-        virtual void testCaseEnded( TestCaseStats const& testCaseStats ) = 0;
-        virtual void testGroupEnded( TestGroupStats const& testGroupStats ) = 0;
-        virtual void testRunEnded( TestRunStats const& testRunStats ) = 0;
+        friend std::ostream& operator << ( std::ostream& os, XmlEncode const& xmlEncode );
 
-        virtual void skipTest( TestCaseInfo const& testInfo ) = 0;
+    private:
+        std::string m_str;
+        ForWhat m_forWhat;
+    };
 
-        // Default empty implementation provided
-        virtual void fatalErrorEncountered( StringRef name );
+    class XmlWriter {
+    public:
+
+        class ScopedElement {
+        public:
+            ScopedElement( XmlWriter* writer, XmlFormatting fmt );
+
+            ScopedElement( ScopedElement&& other ) noexcept;
+            ScopedElement& operator=( ScopedElement&& other ) noexcept;
 
-        virtual bool isMulti() const;
-    };
-    using IStreamingReporterPtr = std::unique_ptr<IStreamingReporter>;
+            ~ScopedElement();
 
-    struct IReporterFactory {
-        virtual ~IReporterFactory();
-        virtual IStreamingReporterPtr create( ReporterConfig const& config ) const = 0;
-        virtual std::string getDescription() const = 0;
-    };
-    using IReporterFactoryPtr = std::shared_ptr<IReporterFactory>;
+            ScopedElement& writeText( std::string const& text, XmlFormatting fmt = XmlFormatting::Newline | XmlFormatting::Indent );
 
-    struct IReporterRegistry {
-        using FactoryMap = std::map<std::string, IReporterFactoryPtr>;
-        using Listeners = std::vector<IReporterFactoryPtr>;
+            template<typename T>
+            ScopedElement& writeAttribute( std::string const& name, T const& attribute ) {
+                m_writer->writeAttribute( name, attribute );
+                return *this;
+            }
 
-        virtual ~IReporterRegistry();
-        virtual IStreamingReporterPtr create( std::string const& name, IConfigPtr const& config ) const = 0;
-        virtual FactoryMap const& getFactories() const = 0;
-        virtual Listeners const& getListeners() const = 0;
-    };
+        private:
+            mutable XmlWriter* m_writer = nullptr;
+            XmlFormatting m_fmt;
+        };
 
-    void addReporter( IStreamingReporterPtr& existingReporter, IStreamingReporterPtr&& additionalReporter );
+        XmlWriter( std::ostream& os = Catch::cout() );
+        ~XmlWriter();
 
-} // end namespace Catch
+        XmlWriter( XmlWriter const& ) = delete;
+        XmlWriter& operator=( XmlWriter const& ) = delete;
 
-// end catch_interfaces_reporter.h
-#include <algorithm>
-#include <cstring>
-#include <cfloat>
-#include <cstdio>
-#include <assert.h>
-#include <memory>
-#include <ostream>
+        XmlWriter& startElement( std::string const& name, XmlFormatting fmt = XmlFormatting::Newline | XmlFormatting::Indent);
 
-namespace Catch {
-    void prepareExpandedExpression(AssertionResult& result);
+        ScopedElement scopedElement( std::string const& name, XmlFormatting fmt = XmlFormatting::Newline | XmlFormatting::Indent);
 
-    // Returns double formatted as %.3f (format expected on output)
-    std::string getFormattedDuration( double duration );
+        XmlWriter& endElement(XmlFormatting fmt = XmlFormatting::Newline | XmlFormatting::Indent);
 
-    template<typename DerivedT>
-    struct StreamingReporterBase : IStreamingReporter {
+        XmlWriter& writeAttribute( std::string const& name, std::string const& attribute );
 
-        StreamingReporterBase( ReporterConfig const& _config )
-        :   m_config( _config.fullConfig() ),
-            stream( _config.stream() )
-        {
-            m_reporterPrefs.shouldRedirectStdOut = false;
-            if( !DerivedT::getSupportedVerbosities().count( m_config->verbosity() ) )
-                throw std::domain_error( "Verbosity level not supported by this reporter" );
-        }
+        XmlWriter& writeAttribute( std::string const& name, bool attribute );
 
-        ReporterPreferences getPreferences() const override {
-            return m_reporterPrefs;
+        template<typename T>
+        XmlWriter& writeAttribute( std::string const& name, T const& attribute ) {
+            ReusableStringStream rss;
+            rss << attribute;
+            return writeAttribute( name, rss.str() );
         }
 
-        static std::set<Verbosity> getSupportedVerbosities() {
-            return { Verbosity::Normal };
-        }
+        XmlWriter& writeText( std::string const& text, XmlFormatting fmt = XmlFormatting::Newline | XmlFormatting::Indent);
 
-        ~StreamingReporterBase() override = default;
+        XmlWriter& writeComment(std::string const& text, XmlFormatting fmt = XmlFormatting::Newline | XmlFormatting::Indent);
 
-        void noMatchingTestCases(std::string const&) override {}
+        void writeStylesheetRef( std::string const& url );
 
-        void testRunStarting(TestRunInfo const& _testRunInfo) override {
-            currentTestRunInfo = _testRunInfo;
-        }
-        void testGroupStarting(GroupInfo const& _groupInfo) override {
-            currentGroupInfo = _groupInfo;
-        }
+        XmlWriter& writeBlankLine();
 
-        void testCaseStarting(TestCaseInfo const& _testInfo) override  {
-            currentTestCaseInfo = _testInfo;
-        }
-        void sectionStarting(SectionInfo const& _sectionInfo) override {
-            m_sectionStack.push_back(_sectionInfo);
-        }
+        void ensureTagClosed();
 
-        void sectionEnded(SectionStats const& /* _sectionStats */) override {
-            m_sectionStack.pop_back();
-        }
-        void testCaseEnded(TestCaseStats const& /* _testCaseStats */) override {
-            currentTestCaseInfo.reset();
-        }
-        void testGroupEnded(TestGroupStats const& /* _testGroupStats */) override {
-            currentGroupInfo.reset();
-        }
-        void testRunEnded(TestRunStats const& /* _testRunStats */) override {
-            currentTestCaseInfo.reset();
-            currentGroupInfo.reset();
-            currentTestRunInfo.reset();
-        }
+    private:
 
-        void skipTest(TestCaseInfo const&) override {
-            // Don't do anything with this by default.
-            // It can optionally be overridden in the derived class.
-        }
+        void applyFormatting(XmlFormatting fmt);
 
-        IConfigPtr m_config;
-        std::ostream& stream;
+        void writeDeclaration();
 
-        LazyStat<TestRunInfo> currentTestRunInfo;
-        LazyStat<GroupInfo> currentGroupInfo;
-        LazyStat<TestCaseInfo> currentTestCaseInfo;
+        void newlineIfNecessary();
 
-        std::vector<SectionInfo> m_sectionStack;
-        ReporterPreferences m_reporterPrefs;
+        bool m_tagIsOpen = false;
+        bool m_needsNewline = false;
+        std::vector<std::string> m_tags;
+        std::string m_indent;
+        std::ostream& m_os;
     };
 
-    template<typename DerivedT>
-    struct CumulativeReporterBase : IStreamingReporter {
-        template<typename T, typename ChildNodeT>
-        struct Node {
-            explicit Node( T const& _value ) : value( _value ) {}
-            virtual ~Node() {}
+}
 
-            using ChildNodes = std::vector<std::shared_ptr<ChildNodeT>>;
-            T value;
-            ChildNodes children;
-        };
-        struct SectionNode {
-            explicit SectionNode(SectionStats const& _stats) : stats(_stats) {}
-            virtual ~SectionNode() = default;
+// end catch_xmlwriter.h
+namespace Catch {
 
-            bool operator == (SectionNode const& other) const {
-                return stats.sectionInfo.lineInfo == other.stats.sectionInfo.lineInfo;
-            }
-            bool operator == (std::shared_ptr<SectionNode> const& other) const {
-                return operator==(*other);
-            }
+    class JunitReporter : public CumulativeReporterBase<JunitReporter> {
+    public:
+        JunitReporter(ReporterConfig const& _config);
 
-            SectionStats stats;
-            using ChildSections = std::vector<std::shared_ptr<SectionNode>>;
-            using Assertions = std::vector<AssertionStats>;
-            ChildSections childSections;
-            Assertions assertions;
-            std::string stdOut;
-            std::string stdErr;
-        };
+        ~JunitReporter() override;
 
-        struct BySectionInfo {
-            BySectionInfo( SectionInfo const& other ) : m_other( other ) {}
-            BySectionInfo( BySectionInfo const& other ) : m_other( other.m_other ) {}
-            bool operator() (std::shared_ptr<SectionNode> const& node) const {
-                return ((node->stats.sectionInfo.name == m_other.name) &&
-                        (node->stats.sectionInfo.lineInfo == m_other.lineInfo));
-            }
-            void operator=(BySectionInfo const&) = delete;
+        static std::string getDescription();
 
-        private:
-            SectionInfo const& m_other;
-        };
+        void noMatchingTestCases(std::string const& /*spec*/) override;
 
-        using TestCaseNode = Node<TestCaseStats, SectionNode>;
-        using TestGroupNode = Node<TestGroupStats, TestCaseNode>;
-        using TestRunNode = Node<TestRunStats, TestGroupNode>;
+        void testRunStarting(TestRunInfo const& runInfo) override;
 
-        CumulativeReporterBase( ReporterConfig const& _config )
-        :   m_config( _config.fullConfig() ),
-            stream( _config.stream() )
-        {
-            m_reporterPrefs.shouldRedirectStdOut = false;
-            if( !DerivedT::getSupportedVerbosities().count( m_config->verbosity() ) )
-                throw std::domain_error( "Verbosity level not supported by this reporter" );
-        }
-        ~CumulativeReporterBase() override = default;
+        void testGroupStarting(GroupInfo const& groupInfo) override;
 
-        ReporterPreferences getPreferences() const override {
-            return m_reporterPrefs;
-        }
+        void testCaseStarting(TestCaseInfo const& testCaseInfo) override;
+        bool assertionEnded(AssertionStats const& assertionStats) override;
 
-        static std::set<Verbosity> getSupportedVerbosities() {
-            return { Verbosity::Normal };
-        }
+        void testCaseEnded(TestCaseStats const& testCaseStats) override;
 
-        void testRunStarting( TestRunInfo const& ) override {}
-        void testGroupStarting( GroupInfo const& ) override {}
+        void testGroupEnded(TestGroupStats const& testGroupStats) override;
 
-        void testCaseStarting( TestCaseInfo const& ) override {}
+        void testRunEndedCumulative() override;
 
-        void sectionStarting( SectionInfo const& sectionInfo ) override {
-            SectionStats incompleteStats( sectionInfo, Counts(), 0, false );
-            std::shared_ptr<SectionNode> node;
-            if( m_sectionStack.empty() ) {
-                if( !m_rootSection )
-                    m_rootSection = std::make_shared<SectionNode>( incompleteStats );
-                node = m_rootSection;
-            }
-            else {
-                SectionNode& parentNode = *m_sectionStack.back();
-                auto it =
-                    std::find_if(   parentNode.childSections.begin(),
-                                    parentNode.childSections.end(),
-                                    BySectionInfo( sectionInfo ) );
-                if( it == parentNode.childSections.end() ) {
-                    node = std::make_shared<SectionNode>( incompleteStats );
-                    parentNode.childSections.push_back( node );
-                }
-                else
-                    node = *it;
-            }
-            m_sectionStack.push_back( node );
-            m_deepestSection = std::move(node);
-        }
+        void writeGroup(TestGroupNode const& groupNode, double suiteTime);
 
-        void assertionStarting(AssertionInfo const&) override {}
+        void writeTestCase(TestCaseNode const& testCaseNode);
 
-        bool assertionEnded(AssertionStats const& assertionStats) override {
-            assert(!m_sectionStack.empty());
-            // AssertionResult holds a pointer to a temporary DecomposedExpression,
-            // which getExpandedExpression() calls to build the expression string.
-            // Our section stack copy of the assertionResult will likely outlive the
-            // temporary, so it must be expanded or discarded now to avoid calling
-            // a destroyed object later.
-            prepareExpandedExpression(const_cast<AssertionResult&>( assertionStats.assertionResult ) );
-            SectionNode& sectionNode = *m_sectionStack.back();
-            sectionNode.assertions.push_back(assertionStats);
-            return true;
-        }
-        void sectionEnded(SectionStats const& sectionStats) override {
-            assert(!m_sectionStack.empty());
-            SectionNode& node = *m_sectionStack.back();
-            node.stats = sectionStats;
-            m_sectionStack.pop_back();
-        }
-        void testCaseEnded(TestCaseStats const& testCaseStats) override {
-            auto node = std::make_shared<TestCaseNode>(testCaseStats);
-            assert(m_sectionStack.size() == 0);
-            node->children.push_back(m_rootSection);
-            m_testCases.push_back(node);
-            m_rootSection.reset();
+        void writeSection(std::string const& className,
+                          std::string const& rootName,
+                          SectionNode const& sectionNode);
+
+        void writeAssertions(SectionNode const& sectionNode);
+        void writeAssertion(AssertionStats const& stats);
+
+        XmlWriter xml;
+        Timer suiteTimer;
+        std::string stdOutForSuite;
+        std::string stdErrForSuite;
+        unsigned int unexpectedExceptions = 0;
+        bool m_okToFail = false;
+    };
+
+} // end namespace Catch
+
+// end catch_reporter_junit.h
+// start catch_reporter_xml.h
 
-            assert(m_deepestSection);
-            m_deepestSection->stdOut = testCaseStats.stdOut;
-            m_deepestSection->stdErr = testCaseStats.stdErr;
-        }
-        void testGroupEnded(TestGroupStats const& testGroupStats) override {
-            auto node = std::make_shared<TestGroupNode>(testGroupStats);
-            node->children.swap(m_testCases);
-            m_testGroups.push_back(node);
-        }
-        void testRunEnded(TestRunStats const& testRunStats) override {
-            auto node = std::make_shared<TestRunNode>(testRunStats);
-            node->children.swap(m_testGroups);
-            m_testRuns.push_back(node);
-            testRunEndedCumulative();
-        }
-        virtual void testRunEndedCumulative() = 0;
+namespace Catch {
+    class XmlReporter : public StreamingReporterBase<XmlReporter> {
+    public:
+        XmlReporter(ReporterConfig const& _config);
 
-        void skipTest(TestCaseInfo const&) override {}
+        ~XmlReporter() override;
 
-        IConfigPtr m_config;
-        std::ostream& stream;
-        std::vector<AssertionStats> m_assertions;
-        std::vector<std::vector<std::shared_ptr<SectionNode>>> m_sections;
-        std::vector<std::shared_ptr<TestCaseNode>> m_testCases;
-        std::vector<std::shared_ptr<TestGroupNode>> m_testGroups;
+        static std::string getDescription();
 
-        std::vector<std::shared_ptr<TestRunNode>> m_testRuns;
+        virtual std::string getStylesheetRef() const;
 
-        std::shared_ptr<SectionNode> m_rootSection;
-        std::shared_ptr<SectionNode> m_deepestSection;
-        std::vector<std::shared_ptr<SectionNode>> m_sectionStack;
-        ReporterPreferences m_reporterPrefs;
-    };
+        void writeSourceInfo(SourceLineInfo const& sourceInfo);
 
-    template<char C>
-    char const* getLineOfChars() {
-        static char line[CATCH_CONFIG_CONSOLE_WIDTH] = {0};
-        if( !*line ) {
-            std::memset( line, C, CATCH_CONFIG_CONSOLE_WIDTH-1 );
-            line[CATCH_CONFIG_CONSOLE_WIDTH-1] = 0;
-        }
-        return line;
-    }
+    public: // StreamingReporterBase
 
-    struct TestEventListenerBase : StreamingReporterBase<TestEventListenerBase> {
-        TestEventListenerBase( ReporterConfig const& _config );
+        void noMatchingTestCases(std::string const& s) override;
+
+        void testRunStarting(TestRunInfo const& testInfo) override;
+
+        void testGroupStarting(GroupInfo const& groupInfo) override;
+
+        void testCaseStarting(TestCaseInfo const& testInfo) override;
+
+        void sectionStarting(SectionInfo const& sectionInfo) override;
 
         void assertionStarting(AssertionInfo const&) override;
-        bool assertionEnded(AssertionStats const&) override;
+
+        bool assertionEnded(AssertionStats const& assertionStats) override;
+
+        void sectionEnded(SectionStats const& sectionStats) override;
+
+        void testCaseEnded(TestCaseStats const& testCaseStats) override;
+
+        void testGroupEnded(TestGroupStats const& testGroupStats) override;
+
+        void testRunEnded(TestRunStats const& testRunStats) override;
+
+#if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
+        void benchmarkPreparing(std::string const& name) override;
+        void benchmarkStarting(BenchmarkInfo const&) override;
+        void benchmarkEnded(BenchmarkStats<> const&) override;
+        void benchmarkFailed(std::string const&) override;
+#endif // CATCH_CONFIG_ENABLE_BENCHMARKING
+
+    private:
+        Timer m_testCaseTimer;
+        XmlWriter m_xml;
+        int m_sectionDepth = 0;
     };
 
 } // end namespace Catch
 
-// end catch_reporter_bases.hpp
-// start catch_console_colour.h
+// end catch_reporter_xml.h
 
-namespace Catch {
+// end catch_external_interfaces.h
+#endif
 
-    struct Colour {
-        enum Code {
-            None = 0,
+#if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
+// start catch_benchmarking_all.hpp
 
-            White,
-            Red,
-            Green,
-            Blue,
-            Cyan,
-            Yellow,
-            Grey,
+// A proxy header that includes all of the benchmarking headers to allow
+// concise include of the benchmarking features. You should prefer the
+// individual includes in standard use.
 
-            Bright = 0x10,
+// start catch_benchmark.hpp
 
-            BrightRed = Bright | Red,
-            BrightGreen = Bright | Green,
-            LightGrey = Bright | Grey,
-            BrightWhite = Bright | White,
-            BrightYellow = Bright | Yellow,
+ // Benchmark
 
-            // By intention
-            FileName = LightGrey,
-            Warning = BrightYellow,
-            ResultError = BrightRed,
-            ResultSuccess = BrightGreen,
-            ResultExpectedFailure = Warning,
+// start catch_chronometer.hpp
 
-            Error = BrightRed,
-            Success = Green,
+// User-facing chronometer
 
-            OriginalExpression = Cyan,
-            ReconstructedExpression = BrightYellow,
 
-            SecondaryText = LightGrey,
-            Headers = White
-        };
+// start catch_clock.hpp
 
-        // Use constructed object for RAII guard
-        Colour( Code _colourCode );
-        Colour( Colour&& other ) noexcept;
-        Colour& operator=( Colour&& other ) noexcept;
-        ~Colour();
+// Clocks
 
-        // Use static method for one-shot changes
-        static void use( Code _colourCode );
 
-    private:
-        bool m_moved = false;
-    };
+#include <chrono>
+#include <ratio>
 
-    std::ostream& operator << ( std::ostream& os, Colour const& );
+namespace Catch {
+    namespace Benchmark {
+        template <typename Clock>
+        using ClockDuration = typename Clock::duration;
+        template <typename Clock>
+        using FloatDuration = std::chrono::duration<double, typename Clock::period>;
 
-} // end namespace Catch
+        template <typename Clock>
+        using TimePoint = typename Clock::time_point;
 
-// end catch_console_colour.h
-// start catch_reporter_registrars.hpp
+        using default_clock = std::chrono::steady_clock;
+
+        template <typename Clock>
+        struct now {
+            TimePoint<Clock> operator()() const {
+                return Clock::now();
+            }
+        };
+
+        using fp_seconds = std::chrono::duration<double, std::ratio<1>>;
+    } // namespace Benchmark
+} // namespace Catch
+
+// end catch_clock.hpp
+// start catch_optimizer.hpp
+
+ // Hinting the optimizer
 
 
+#if defined(_MSC_VER)
+#   include <atomic> // atomic_thread_fence
+#endif
+
 namespace Catch {
+    namespace Benchmark {
+#if defined(__GNUC__) || defined(__clang__)
+        template <typename T>
+        inline void keep_memory(T* p) {
+            asm volatile("" : : "g"(p) : "memory");
+        }
+        inline void keep_memory() {
+            asm volatile("" : : : "memory");
+        }
 
-    template<typename T>
-    class ReporterRegistrar {
+        namespace Detail {
+            inline void optimizer_barrier() { keep_memory(); }
+        } // namespace Detail
+#elif defined(_MSC_VER)
 
-        class ReporterFactory : public IReporterFactory {
+#pragma optimize("", off)
+        template <typename T>
+        inline void keep_memory(T* p) {
+            // thanks @milleniumbug
+            *reinterpret_cast<char volatile*>(p) = *reinterpret_cast<char const volatile*>(p);
+        }
+        // TODO equivalent keep_memory()
+#pragma optimize("", on)
 
-            virtual IStreamingReporterPtr create( ReporterConfig const& config ) const override {
-                return std::unique_ptr<T>( new T( config ) );
+        namespace Detail {
+            inline void optimizer_barrier() {
+                std::atomic_thread_fence(std::memory_order_seq_cst);
             }
+        } // namespace Detail
 
-            virtual std::string getDescription() const override {
-                return T::getDescription();
+#endif
+
+        template <typename T>
+        inline void deoptimize_value(T&& x) {
+            keep_memory(&x);
+        }
+
+        template <typename Fn, typename... Args>
+        inline auto invoke_deoptimized(Fn&& fn, Args&&... args) -> typename std::enable_if<!std::is_same<void, decltype(fn(args...))>::value>::type {
+            deoptimize_value(std::forward<Fn>(fn) (std::forward<Args...>(args...)));
+        }
+
+        template <typename Fn, typename... Args>
+        inline auto invoke_deoptimized(Fn&& fn, Args&&... args) -> typename std::enable_if<std::is_same<void, decltype(fn(args...))>::value>::type {
+            std::forward<Fn>(fn) (std::forward<Args...>(args...));
+        }
+    } // namespace Benchmark
+} // namespace Catch
+
+// end catch_optimizer.hpp
+// start catch_complete_invoke.hpp
+
+// Invoke with a special case for void
+
+
+#include <type_traits>
+#include <utility>
+
+namespace Catch {
+    namespace Benchmark {
+        namespace Detail {
+            template <typename T>
+            struct CompleteType { using type = T; };
+            template <>
+            struct CompleteType<void> { struct type {}; };
+
+            template <typename T>
+            using CompleteType_t = typename CompleteType<T>::type;
+
+            template <typename Result>
+            struct CompleteInvoker {
+                template <typename Fun, typename... Args>
+                static Result invoke(Fun&& fun, Args&&... args) {
+                    return std::forward<Fun>(fun)(std::forward<Args>(args)...);
+                }
+            };
+            template <>
+            struct CompleteInvoker<void> {
+                template <typename Fun, typename... Args>
+                static CompleteType_t<void> invoke(Fun&& fun, Args&&... args) {
+                    std::forward<Fun>(fun)(std::forward<Args>(args)...);
+                    return {};
+                }
+            };
+            template <typename Sig>
+            using ResultOf_t = typename std::result_of<Sig>::type;
+
+            // invoke and not return void :(
+            template <typename Fun, typename... Args>
+            CompleteType_t<ResultOf_t<Fun(Args...)>> complete_invoke(Fun&& fun, Args&&... args) {
+                return CompleteInvoker<ResultOf_t<Fun(Args...)>>::invoke(std::forward<Fun>(fun), std::forward<Args>(args)...);
             }
-        };
 
-    public:
+            const std::string benchmarkErrorMsg = "a benchmark failed to run successfully";
+        } // namespace Detail
 
-        explicit ReporterRegistrar( std::string const& name ) {
-            getMutableRegistryHub().registerReporter( name, std::make_shared<ReporterFactory>() );
+        template <typename Fun>
+        Detail::CompleteType_t<Detail::ResultOf_t<Fun()>> user_code(Fun&& fun) {
+            CATCH_TRY{
+                return Detail::complete_invoke(std::forward<Fun>(fun));
+            } CATCH_CATCH_ALL{
+                getResultCapture().benchmarkFailed(translateActiveException());
+                CATCH_RUNTIME_ERROR(Detail::benchmarkErrorMsg);
+            }
         }
-    };
+    } // namespace Benchmark
+} // namespace Catch
 
-    template<typename T>
-    class ListenerRegistrar {
+// end catch_complete_invoke.hpp
+namespace Catch {
+    namespace Benchmark {
+        namespace Detail {
+            struct ChronometerConcept {
+                virtual void start() = 0;
+                virtual void finish() = 0;
+                virtual ~ChronometerConcept() = default;
+            };
+            template <typename Clock>
+            struct ChronometerModel final : public ChronometerConcept {
+                void start() override { started = Clock::now(); }
+                void finish() override { finished = Clock::now(); }
 
-        class ListenerFactory : public IReporterFactory {
+                ClockDuration<Clock> elapsed() const { return finished - started; }
 
-            virtual IStreamingReporterPtr create( ReporterConfig const& config ) const override {
-                return std::unique_ptr<T>( new T( config ) );
+                TimePoint<Clock> started;
+                TimePoint<Clock> finished;
+            };
+        } // namespace Detail
+
+        struct Chronometer {
+        public:
+            template <typename Fun>
+            void measure(Fun&& fun) { measure(std::forward<Fun>(fun), is_callable<Fun(int)>()); }
+
+            int runs() const { return k; }
+
+            Chronometer(Detail::ChronometerConcept& meter, int k)
+                : impl(&meter)
+                , k(k) {}
+
+        private:
+            template <typename Fun>
+            void measure(Fun&& fun, std::false_type) {
+                measure([&fun](int) { return fun(); }, std::true_type());
             }
-            virtual std::string getDescription() const override {
-                return std::string();
+
+            template <typename Fun>
+            void measure(Fun&& fun, std::true_type) {
+                Detail::optimizer_barrier();
+                impl->start();
+                for (int i = 0; i < k; ++i) invoke_deoptimized(fun, i);
+                impl->finish();
+                Detail::optimizer_barrier();
             }
+
+            Detail::ChronometerConcept* impl;
+            int k;
         };
+    } // namespace Benchmark
+} // namespace Catch
 
-    public:
+// end catch_chronometer.hpp
+// start catch_environment.hpp
 
-        ListenerRegistrar() {
-            getMutableRegistryHub().registerListener( std::make_shared<ListenerFactory>() );
-        }
-    };
-}
+// Environment information
 
-#if !defined(CATCH_CONFIG_DISABLE)
 
-#define CATCH_REGISTER_REPORTER( name, reporterType ) \
-    CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS          \
-    namespace{ Catch::ReporterRegistrar<reporterType> catch_internal_RegistrarFor##reporterType( name ); } \
-    CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS
+namespace Catch {
+    namespace Benchmark {
+        template <typename Duration>
+        struct EnvironmentEstimate {
+            Duration mean;
+            OutlierClassification outliers;
+
+            template <typename Duration2>
+            operator EnvironmentEstimate<Duration2>() const {
+                return { mean, outliers };
+            }
+        };
+        template <typename Clock>
+        struct Environment {
+            using clock_type = Clock;
+            EnvironmentEstimate<FloatDuration<Clock>> clock_resolution;
+            EnvironmentEstimate<FloatDuration<Clock>> clock_cost;
+        };
+    } // namespace Benchmark
+} // namespace Catch
 
-#define CATCH_REGISTER_LISTENER( listenerType ) \
-     CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS   \
-     namespace{ Catch::ListenerRegistrar<listenerType> catch_internal_RegistrarFor##listenerType; } \
-     CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS
-#else // CATCH_CONFIG_DISABLE
+// end catch_environment.hpp
+// start catch_execution_plan.hpp
 
-#define CATCH_REGISTER_REPORTER(name, reporterType)
-#define CATCH_REGISTER_LISTENER(listenerType)
+ // Execution plan
 
-#endif // CATCH_CONFIG_DISABLE
 
-// end catch_reporter_registrars.hpp
-// Allow users to base their work off existing reporters
-// start catch_reporter_compact.h
+// start catch_benchmark_function.hpp
 
-namespace Catch {
+ // Dumb std::function implementation for consistent call overhead
 
-    struct CompactReporter : StreamingReporterBase<CompactReporter> {
 
-        using StreamingReporterBase::StreamingReporterBase;
+#include <cassert>
+#include <type_traits>
+#include <utility>
+#include <memory>
 
-        ~CompactReporter() override;
+namespace Catch {
+    namespace Benchmark {
+        namespace Detail {
+            template <typename T>
+            using Decay = typename std::decay<T>::type;
+            template <typename T, typename U>
+            struct is_related
+                : std::is_same<Decay<T>, Decay<U>> {};
+
+            /// We need to reinvent std::function because every piece of code that might add overhead
+            /// in a measurement context needs to have consistent performance characteristics so that we
+            /// can account for it in the measurement.
+            /// Implementations of std::function with optimizations that aren't always applicable, like
+            /// small buffer optimizations, are not uncommon.
+            /// This is effectively an implementation of std::function without any such optimizations;
+            /// it may be slow, but it is consistently slow.
+            struct BenchmarkFunction {
+            private:
+                struct callable {
+                    virtual void call(Chronometer meter) const = 0;
+                    virtual callable* clone() const = 0;
+                    virtual ~callable() = default;
+                };
+                template <typename Fun>
+                struct model : public callable {
+                    model(Fun&& fun) : fun(std::move(fun)) {}
+                    model(Fun const& fun) : fun(fun) {}
+
+                    model<Fun>* clone() const override { return new model<Fun>(*this); }
+
+                    void call(Chronometer meter) const override {
+                        call(meter, is_callable<Fun(Chronometer)>());
+                    }
+                    void call(Chronometer meter, std::true_type) const {
+                        fun(meter);
+                    }
+                    void call(Chronometer meter, std::false_type) const {
+                        meter.measure(fun);
+                    }
 
-        static std::string getDescription();
+                    Fun fun;
+                };
 
-        ReporterPreferences getPreferences() const override;
+                struct do_nothing { void operator()() const {} };
 
-        void noMatchingTestCases(std::string const& spec) override;
+                template <typename T>
+                BenchmarkFunction(model<T>* c) : f(c) {}
 
-        void assertionStarting(AssertionInfo const&) override;
+            public:
+                BenchmarkFunction()
+                    : f(new model<do_nothing>{ {} }) {}
 
-        bool assertionEnded(AssertionStats const& _assertionStats) override;
+                template <typename Fun,
+                    typename std::enable_if<!is_related<Fun, BenchmarkFunction>::value, int>::type = 0>
+                    BenchmarkFunction(Fun&& fun)
+                    : f(new model<typename std::decay<Fun>::type>(std::forward<Fun>(fun))) {}
 
-        void sectionEnded(SectionStats const& _sectionStats) override;
+                BenchmarkFunction(BenchmarkFunction&& that)
+                    : f(std::move(that.f)) {}
 
-        void testRunEnded(TestRunStats const& _testRunStats) override;
+                BenchmarkFunction(BenchmarkFunction const& that)
+                    : f(that.f->clone()) {}
 
-    };
+                BenchmarkFunction& operator=(BenchmarkFunction&& that) {
+                    f = std::move(that.f);
+                    return *this;
+                }
 
-} // end namespace Catch
+                BenchmarkFunction& operator=(BenchmarkFunction const& that) {
+                    f.reset(that.f->clone());
+                    return *this;
+                }
 
-// end catch_reporter_compact.h
-// start catch_reporter_console.h
+                void operator()(Chronometer meter) const { f->call(meter); }
+
+            private:
+                std::unique_ptr<callable> f;
+            };
+        } // namespace Detail
+    } // namespace Benchmark
+} // namespace Catch
+
+// end catch_benchmark_function.hpp
+// start catch_repeat.hpp
+
+// repeat algorithm
 
-#if defined(_MSC_VER)
-#pragma warning(push)
-#pragma warning(disable:4061) // Not all labels are EXPLICITLY handled in switch
-                              // Note that 4062 (not all labels are handled
-                              // and default is missing) is enabled
-#endif
+
+#include <type_traits>
+#include <utility>
 
 namespace Catch {
-    // Fwd decls
-    struct SummaryColumn;
-    class TablePrinter;
+    namespace Benchmark {
+        namespace Detail {
+            template <typename Fun>
+            struct repeater {
+                void operator()(int k) const {
+                    for (int i = 0; i < k; ++i) {
+                        fun();
+                    }
+                }
+                Fun fun;
+            };
+            template <typename Fun>
+            repeater<typename std::decay<Fun>::type> repeat(Fun&& fun) {
+                return { std::forward<Fun>(fun) };
+            }
+        } // namespace Detail
+    } // namespace Benchmark
+} // namespace Catch
 
-    struct ConsoleReporter : StreamingReporterBase<ConsoleReporter> {
-        std::unique_ptr<TablePrinter> m_tablePrinter;
+// end catch_repeat.hpp
+// start catch_run_for_at_least.hpp
 
-        ConsoleReporter(ReporterConfig const& config);
-        ~ConsoleReporter() override;
-        static std::string getDescription();
+// Run a function for a minimum amount of time
 
-        void noMatchingTestCases(std::string const& spec) override;
 
-        void assertionStarting(AssertionInfo const&) override;
+// start catch_measure.hpp
 
-        bool assertionEnded(AssertionStats const& _assertionStats) override;
+// Measure
 
-        void sectionStarting(SectionInfo const& _sectionInfo) override;
-        void sectionEnded(SectionStats const& _sectionStats) override;
 
-        void benchmarkStarting(BenchmarkInfo const& info) override;
-        void benchmarkEnded(BenchmarkStats const& stats) override;
+// start catch_timing.hpp
 
-        void testCaseEnded(TestCaseStats const& _testCaseStats) override;
-        void testGroupEnded(TestGroupStats const& _testGroupStats) override;
-        void testRunEnded(TestRunStats const& _testRunStats) override;
+// Timing
 
-    private:
 
-        void lazyPrint();
+#include <tuple>
+#include <type_traits>
 
-        void lazyPrintWithoutClosingBenchmarkTable();
-        void lazyPrintRunInfo();
-        void lazyPrintGroupInfo();
-        void printTestCaseAndSectionHeader();
+namespace Catch {
+    namespace Benchmark {
+        template <typename Duration, typename Result>
+        struct Timing {
+            Duration elapsed;
+            Result result;
+            int iterations;
+        };
+        template <typename Clock, typename Sig>
+        using TimingOf = Timing<ClockDuration<Clock>, Detail::CompleteType_t<Detail::ResultOf_t<Sig>>>;
+    } // namespace Benchmark
+} // namespace Catch
 
-        void printClosedHeader(std::string const& _name);
-        void printOpenHeader(std::string const& _name);
+// end catch_timing.hpp
+#include <utility>
 
-        // if string has a : in first line will set indent to follow it on
-        // subsequent lines
-        void printHeaderString(std::string const& _string, std::size_t indent = 0);
+namespace Catch {
+    namespace Benchmark {
+        namespace Detail {
+            template <typename Clock, typename Fun, typename... Args>
+            TimingOf<Clock, Fun(Args...)> measure(Fun&& fun, Args&&... args) {
+                auto start = Clock::now();
+                auto&& r = Detail::complete_invoke(fun, std::forward<Args>(args)...);
+                auto end = Clock::now();
+                auto delta = end - start;
+                return { delta, std::forward<decltype(r)>(r), 1 };
+            }
+        } // namespace Detail
+    } // namespace Benchmark
+} // namespace Catch
 
-        void printTotals(Totals const& totals);
-        void printSummaryRow(std::string const& label, std::vector<SummaryColumn> const& cols, std::size_t row);
+// end catch_measure.hpp
+#include <utility>
+#include <type_traits>
 
-        void printTotalsDivider(Totals const& totals);
-        void printSummaryDivider();
+namespace Catch {
+    namespace Benchmark {
+        namespace Detail {
+            template <typename Clock, typename Fun>
+            TimingOf<Clock, Fun(int)> measure_one(Fun&& fun, int iters, std::false_type) {
+                return Detail::measure<Clock>(fun, iters);
+            }
+            template <typename Clock, typename Fun>
+            TimingOf<Clock, Fun(Chronometer)> measure_one(Fun&& fun, int iters, std::true_type) {
+                Detail::ChronometerModel<Clock> meter;
+                auto&& result = Detail::complete_invoke(fun, Chronometer(meter, iters));
 
-    private:
-        bool m_headerPrinted = false;
-    };
+                return { meter.elapsed(), std::move(result), iters };
+            }
 
-} // end namespace Catch
+            template <typename Clock, typename Fun>
+            using run_for_at_least_argument_t = typename std::conditional<is_callable<Fun(Chronometer)>::value, Chronometer, int>::type;
 
-#if defined(_MSC_VER)
-#pragma warning(pop)
-#endif
+            struct optimized_away_error : std::exception {
+                const char* what() const noexcept override {
+                    return "could not measure benchmark, maybe it was optimized away";
+                }
+            };
 
-// end catch_reporter_console.h
-// start catch_reporter_junit.h
+            template <typename Clock, typename Fun>
+            TimingOf<Clock, Fun(run_for_at_least_argument_t<Clock, Fun>)> run_for_at_least(ClockDuration<Clock> how_long, int seed, Fun&& fun) {
+                auto iters = seed;
+                while (iters < (1 << 30)) {
+                    auto&& Timing = measure_one<Clock>(fun, iters, is_callable<Fun(Chronometer)>());
 
-// start catch_xmlwriter.h
+                    if (Timing.elapsed >= how_long) {
+                        return { Timing.elapsed, std::move(Timing.result), iters };
+                    }
+                    iters *= 2;
+                }
+                throw optimized_away_error{};
+            }
+        } // namespace Detail
+    } // namespace Benchmark
+} // namespace Catch
 
-#include <vector>
+// end catch_run_for_at_least.hpp
+#include <algorithm>
 
 namespace Catch {
+    namespace Benchmark {
+        template <typename Duration>
+        struct ExecutionPlan {
+            int iterations_per_sample;
+            Duration estimated_duration;
+            Detail::BenchmarkFunction benchmark;
+            Duration warmup_time;
+            int warmup_iterations;
+
+            template <typename Duration2>
+            operator ExecutionPlan<Duration2>() const {
+                return { iterations_per_sample, estimated_duration, benchmark, warmup_time, warmup_iterations };
+            }
 
-    class XmlEncode {
-    public:
-        enum ForWhat { ForTextNodes, ForAttributes };
+            template <typename Clock>
+            std::vector<FloatDuration<Clock>> run(const IConfig &cfg, Environment<FloatDuration<Clock>> env) const {
+                // warmup a bit
+                Detail::run_for_at_least<Clock>(std::chrono::duration_cast<ClockDuration<Clock>>(warmup_time), warmup_iterations, Detail::repeat(now<Clock>{}));
+
+                std::vector<FloatDuration<Clock>> times;
+                times.reserve(cfg.benchmarkSamples());
+                std::generate_n(std::back_inserter(times), cfg.benchmarkSamples(), [this, env] {
+                    Detail::ChronometerModel<Clock> model;
+                    this->benchmark(Chronometer(model, iterations_per_sample));
+                    auto sample_time = model.elapsed() - env.clock_cost.mean;
+                    if (sample_time < FloatDuration<Clock>::zero()) sample_time = FloatDuration<Clock>::zero();
+                    return sample_time / iterations_per_sample;
+                });
+                return times;
+            }
+        };
+    } // namespace Benchmark
+} // namespace Catch
 
-        XmlEncode( std::string const& str, ForWhat forWhat = ForTextNodes );
+// end catch_execution_plan.hpp
+// start catch_estimate_clock.hpp
 
-        void encodeTo( std::ostream& os ) const;
+ // Environment measurement
 
-        friend std::ostream& operator << ( std::ostream& os, XmlEncode const& xmlEncode );
 
-    private:
-        std::string m_str;
-        ForWhat m_forWhat;
-    };
+// start catch_stats.hpp
 
-    class XmlWriter {
-    public:
+// Statistical analysis tools
 
-        class ScopedElement {
-        public:
-            ScopedElement( XmlWriter* writer );
 
-            ScopedElement( ScopedElement&& other ) noexcept;
-            ScopedElement& operator=( ScopedElement&& other ) noexcept;
+#include <algorithm>
+#include <functional>
+#include <vector>
+#include <numeric>
+#include <tuple>
+#include <cmath>
+#include <utility>
+#include <cstddef>
 
-            ~ScopedElement();
+namespace Catch {
+    namespace Benchmark {
+        namespace Detail {
+            using sample = std::vector<double>;
 
-            ScopedElement& writeText( std::string const& text, bool indent = true );
+            double weighted_average_quantile(int k, int q, std::vector<double>::iterator first, std::vector<double>::iterator last);
 
-            template<typename T>
-            ScopedElement& writeAttribute( std::string const& name, T const& attribute ) {
-                m_writer->writeAttribute( name, attribute );
-                return *this;
+            template <typename Iterator>
+            OutlierClassification classify_outliers(Iterator first, Iterator last) {
+                std::vector<double> copy(first, last);
+
+                auto q1 = weighted_average_quantile(1, 4, copy.begin(), copy.end());
+                auto q3 = weighted_average_quantile(3, 4, copy.begin(), copy.end());
+                auto iqr = q3 - q1;
+                auto los = q1 - (iqr * 3.);
+                auto lom = q1 - (iqr * 1.5);
+                auto him = q3 + (iqr * 1.5);
+                auto his = q3 + (iqr * 3.);
+
+                OutlierClassification o;
+                for (; first != last; ++first) {
+                    auto&& t = *first;
+                    if (t < los) ++o.low_severe;
+                    else if (t < lom) ++o.low_mild;
+                    else if (t > his) ++o.high_severe;
+                    else if (t > him) ++o.high_mild;
+                    ++o.samples_seen;
+                }
+                return o;
             }
 
-        private:
-            mutable XmlWriter* m_writer = nullptr;
-        };
+            template <typename Iterator>
+            double mean(Iterator first, Iterator last) {
+                auto count = last - first;
+                double sum = std::accumulate(first, last, 0.);
+                return sum / count;
+            }
 
-        XmlWriter( std::ostream& os = Catch::cout() );
-        ~XmlWriter();
+            template <typename URng, typename Iterator, typename Estimator>
+            sample resample(URng& rng, int resamples, Iterator first, Iterator last, Estimator& estimator) {
+                auto n = last - first;
+                std::uniform_int_distribution<decltype(n)> dist(0, n - 1);
+
+                sample out;
+                out.reserve(resamples);
+                std::generate_n(std::back_inserter(out), resamples, [n, first, &estimator, &dist, &rng] {
+                    std::vector<double> resampled;
+                    resampled.reserve(n);
+                    std::generate_n(std::back_inserter(resampled), n, [first, &dist, &rng] { return first[dist(rng)]; });
+                    return estimator(resampled.begin(), resampled.end());
+                });
+                std::sort(out.begin(), out.end());
+                return out;
+            }
 
-        XmlWriter( XmlWriter const& ) = delete;
-        XmlWriter& operator=( XmlWriter const& ) = delete;
+            template <typename Estimator, typename Iterator>
+            sample jackknife(Estimator&& estimator, Iterator first, Iterator last) {
+                auto n = last - first;
+                auto second = std::next(first);
+                sample results;
+                results.reserve(n);
 
-        XmlWriter& startElement( std::string const& name );
+                for (auto it = first; it != last; ++it) {
+                    std::iter_swap(it, first);
+                    results.push_back(estimator(second, last));
+                }
 
-        ScopedElement scopedElement( std::string const& name );
+                return results;
+            }
 
-        XmlWriter& endElement();
+            inline double normal_cdf(double x) {
+                return std::erfc(-x / std::sqrt(2.0)) / 2.0;
+            }
 
-        XmlWriter& writeAttribute( std::string const& name, std::string const& attribute );
+            double erfc_inv(double x);
+
+            double normal_quantile(double p);
+
+            template <typename Iterator, typename Estimator>
+            Estimate<double> bootstrap(double confidence_level, Iterator first, Iterator last, sample const& resample, Estimator&& estimator) {
+                auto n_samples = last - first;
+
+                double point = estimator(first, last);
+                // Degenerate case with a single sample
+                if (n_samples == 1) return { point, point, point, confidence_level };
+
+                sample jack = jackknife(estimator, first, last);
+                double jack_mean = mean(jack.begin(), jack.end());
+                double sum_squares, sum_cubes;
+                std::tie(sum_squares, sum_cubes) = std::accumulate(jack.begin(), jack.end(), std::make_pair(0., 0.), [jack_mean](std::pair<double, double> sqcb, double x) -> std::pair<double, double> {
+                    auto d = jack_mean - x;
+                    auto d2 = d * d;
+                    auto d3 = d2 * d;
+                    return { sqcb.first + d2, sqcb.second + d3 };
+                });
+
+                double accel = sum_cubes / (6 * std::pow(sum_squares, 1.5));
+                int n = static_cast<int>(resample.size());
+                double prob_n = std::count_if(resample.begin(), resample.end(), [point](double x) { return x < point; }) / (double)n;
+                // degenerate case with uniform samples
+                if (prob_n == 0) return { point, point, point, confidence_level };
+
+                double bias = normal_quantile(prob_n);
+                double z1 = normal_quantile((1. - confidence_level) / 2.);
+
+                auto cumn = [n](double x) -> int {
+                    return std::lround(normal_cdf(x) * n); };
+                auto a = [bias, accel](double b) { return bias + b / (1. - accel * b); };
+                double b1 = bias + z1;
+                double b2 = bias - z1;
+                double a1 = a(b1);
+                double a2 = a(b2);
+                auto lo = std::max(cumn(a1), 0);
+                auto hi = std::min(cumn(a2), n - 1);
+
+                return { point, resample[lo], resample[hi], confidence_level };
+            }
 
-        XmlWriter& writeAttribute( std::string const& name, bool attribute );
+            double outlier_variance(Estimate<double> mean, Estimate<double> stddev, int n);
 
-        template<typename T>
-        XmlWriter& writeAttribute( std::string const& name, T const& attribute ) {
-            ReusableStringStream rss;
-            rss << attribute;
-            return writeAttribute( name, rss.str() );
-        }
+            struct bootstrap_analysis {
+                Estimate<double> mean;
+                Estimate<double> standard_deviation;
+                double outlier_variance;
+            };
 
-        XmlWriter& writeText( std::string const& text, bool indent = true );
+            bootstrap_analysis analyse_samples(double confidence_level, int n_resamples, std::vector<double>::iterator first, std::vector<double>::iterator last);
+        } // namespace Detail
+    } // namespace Benchmark
+} // namespace Catch
 
-        XmlWriter& writeComment( std::string const& text );
+// end catch_stats.hpp
+#include <algorithm>
+#include <iterator>
+#include <tuple>
+#include <vector>
+#include <cmath>
 
-        void writeStylesheetRef( std::string const& url );
+namespace Catch {
+    namespace Benchmark {
+        namespace Detail {
+            template <typename Clock>
+            std::vector<double> resolution(int k) {
+                std::vector<TimePoint<Clock>> times;
+                times.reserve(k + 1);
+                std::generate_n(std::back_inserter(times), k + 1, now<Clock>{});
+
+                std::vector<double> deltas;
+                deltas.reserve(k);
+                std::transform(std::next(times.begin()), times.end(), times.begin(),
+                    std::back_inserter(deltas),
+                    [](TimePoint<Clock> a, TimePoint<Clock> b) { return static_cast<double>((a - b).count()); });
+
+                return deltas;
+            }
 
-        XmlWriter& writeBlankLine();
+            const auto warmup_iterations = 10000;
+            const auto warmup_time = std::chrono::milliseconds(100);
+            const auto minimum_ticks = 1000;
+            const auto warmup_seed = 10000;
+            const auto clock_resolution_estimation_time = std::chrono::milliseconds(500);
+            const auto clock_cost_estimation_time_limit = std::chrono::seconds(1);
+            const auto clock_cost_estimation_tick_limit = 100000;
+            const auto clock_cost_estimation_time = std::chrono::milliseconds(10);
+            const auto clock_cost_estimation_iterations = 10000;
+
+            template <typename Clock>
+            int warmup() {
+                return run_for_at_least<Clock>(std::chrono::duration_cast<ClockDuration<Clock>>(warmup_time), warmup_seed, &resolution<Clock>)
+                    .iterations;
+            }
+            template <typename Clock>
+            EnvironmentEstimate<FloatDuration<Clock>> estimate_clock_resolution(int iterations) {
+                auto r = run_for_at_least<Clock>(std::chrono::duration_cast<ClockDuration<Clock>>(clock_resolution_estimation_time), iterations, &resolution<Clock>)
+                    .result;
+                return {
+                    FloatDuration<Clock>(mean(r.begin(), r.end())),
+                    classify_outliers(r.begin(), r.end()),
+                };
+            }
+            template <typename Clock>
+            EnvironmentEstimate<FloatDuration<Clock>> estimate_clock_cost(FloatDuration<Clock> resolution) {
+                auto time_limit = std::min(resolution * clock_cost_estimation_tick_limit, FloatDuration<Clock>(clock_cost_estimation_time_limit));
+                auto time_clock = [](int k) {
+                    return Detail::measure<Clock>([k] {
+                        for (int i = 0; i < k; ++i) {
+                            volatile auto ignored = Clock::now();
+                            (void)ignored;
+                        }
+                    }).elapsed;
+                };
+                time_clock(1);
+                int iters = clock_cost_estimation_iterations;
+                auto&& r = run_for_at_least<Clock>(std::chrono::duration_cast<ClockDuration<Clock>>(clock_cost_estimation_time), iters, time_clock);
+                std::vector<double> times;
+                int nsamples = static_cast<int>(std::ceil(time_limit / r.elapsed));
+                times.reserve(nsamples);
+                std::generate_n(std::back_inserter(times), nsamples, [time_clock, &r] {
+                    return static_cast<double>((time_clock(r.iterations) / r.iterations).count());
+                });
+                return {
+                    FloatDuration<Clock>(mean(times.begin(), times.end())),
+                    classify_outliers(times.begin(), times.end()),
+                };
+            }
 
-        void ensureTagClosed();
+            template <typename Clock>
+            Environment<FloatDuration<Clock>> measure_environment() {
+                static Environment<FloatDuration<Clock>>* env = nullptr;
+                if (env) {
+                    return *env;
+                }
 
-    private:
+                auto iters = Detail::warmup<Clock>();
+                auto resolution = Detail::estimate_clock_resolution<Clock>(iters);
+                auto cost = Detail::estimate_clock_cost<Clock>(resolution.mean);
 
-        void writeDeclaration();
+                env = new Environment<FloatDuration<Clock>>{ resolution, cost };
+                return *env;
+            }
+        } // namespace Detail
+    } // namespace Benchmark
+} // namespace Catch
 
-        void newlineIfNecessary();
+// end catch_estimate_clock.hpp
+// start catch_analyse.hpp
 
-        bool m_tagIsOpen = false;
-        bool m_needsNewline = false;
-        std::vector<std::string> m_tags;
-        std::string m_indent;
-        std::ostream& m_os;
-    };
+ // Run and analyse one benchmark
 
-}
 
-// end catch_xmlwriter.h
-namespace Catch {
+// start catch_sample_analysis.hpp
 
-    class JunitReporter : public CumulativeReporterBase<JunitReporter> {
-    public:
-        JunitReporter(ReporterConfig const& _config);
+// Benchmark results
 
-        ~JunitReporter() override;
 
-        static std::string getDescription();
+#include <algorithm>
+#include <vector>
+#include <string>
+#include <iterator>
 
-        void noMatchingTestCases(std::string const& /*spec*/) override;
+namespace Catch {
+    namespace Benchmark {
+        template <typename Duration>
+        struct SampleAnalysis {
+            std::vector<Duration> samples;
+            Estimate<Duration> mean;
+            Estimate<Duration> standard_deviation;
+            OutlierClassification outliers;
+            double outlier_variance;
+
+            template <typename Duration2>
+            operator SampleAnalysis<Duration2>() const {
+                std::vector<Duration2> samples2;
+                samples2.reserve(samples.size());
+                std::transform(samples.begin(), samples.end(), std::back_inserter(samples2), [](Duration d) { return Duration2(d); });
+                return {
+                    std::move(samples2),
+                    mean,
+                    standard_deviation,
+                    outliers,
+                    outlier_variance,
+                };
+            }
+        };
+    } // namespace Benchmark
+} // namespace Catch
 
-        void testRunStarting(TestRunInfo const& runInfo) override;
+// end catch_sample_analysis.hpp
+#include <algorithm>
+#include <iterator>
+#include <vector>
 
-        void testGroupStarting(GroupInfo const& groupInfo) override;
+namespace Catch {
+    namespace Benchmark {
+        namespace Detail {
+            template <typename Duration, typename Iterator>
+            SampleAnalysis<Duration> analyse(const IConfig &cfg, Environment<Duration>, Iterator first, Iterator last) {
+                if (!cfg.benchmarkNoAnalysis()) {
+                    std::vector<double> samples;
+                    samples.reserve(last - first);
+                    std::transform(first, last, std::back_inserter(samples), [](Duration d) { return d.count(); });
+
+                    auto analysis = Catch::Benchmark::Detail::analyse_samples(cfg.benchmarkConfidenceInterval(), cfg.benchmarkResamples(), samples.begin(), samples.end());
+                    auto outliers = Catch::Benchmark::Detail::classify_outliers(samples.begin(), samples.end());
+
+                    auto wrap_estimate = [](Estimate<double> e) {
+                        return Estimate<Duration> {
+                            Duration(e.point),
+                                Duration(e.lower_bound),
+                                Duration(e.upper_bound),
+                                e.confidence_interval,
+                        };
+                    };
+                    std::vector<Duration> samples2;
+                    samples2.reserve(samples.size());
+                    std::transform(samples.begin(), samples.end(), std::back_inserter(samples2), [](double d) { return Duration(d); });
+                    return {
+                        std::move(samples2),
+                        wrap_estimate(analysis.mean),
+                        wrap_estimate(analysis.standard_deviation),
+                        outliers,
+                        analysis.outlier_variance,
+                    };
+                } else {
+                    std::vector<Duration> samples;
+                    samples.reserve(last - first);
+
+                    Duration mean = Duration(0);
+                    int i = 0;
+                    for (auto it = first; it < last; ++it, ++i) {
+                        samples.push_back(Duration(*it));
+                        mean += Duration(*it);
+                    }
+                    mean /= i;
+
+                    return {
+                        std::move(samples),
+                        Estimate<Duration>{mean, mean, mean, 0.0},
+                        Estimate<Duration>{Duration(0), Duration(0), Duration(0), 0.0},
+                        OutlierClassification{},
+                        0.0
+                    };
+                }
+            }
+        } // namespace Detail
+    } // namespace Benchmark
+} // namespace Catch
 
-        void testCaseStarting(TestCaseInfo const& testCaseInfo) override;
-        bool assertionEnded(AssertionStats const& assertionStats) override;
+// end catch_analyse.hpp
+#include <algorithm>
+#include <functional>
+#include <string>
+#include <vector>
+#include <cmath>
 
-        void testCaseEnded(TestCaseStats const& testCaseStats) override;
+namespace Catch {
+    namespace Benchmark {
+        struct Benchmark {
+            Benchmark(std::string &&name)
+                : name(std::move(name)) {}
+
+            template <class FUN>
+            Benchmark(std::string &&name, FUN &&func)
+                : fun(std::move(func)), name(std::move(name)) {}
+
+            template <typename Clock>
+            ExecutionPlan<FloatDuration<Clock>> prepare(const IConfig &cfg, Environment<FloatDuration<Clock>> env) const {
+                auto min_time = env.clock_resolution.mean * Detail::minimum_ticks;
+                auto run_time = std::max(min_time, std::chrono::duration_cast<decltype(min_time)>(Detail::warmup_time));
+                auto&& test = Detail::run_for_at_least<Clock>(std::chrono::duration_cast<ClockDuration<Clock>>(run_time), 1, fun);
+                int new_iters = static_cast<int>(std::ceil(min_time * test.iterations / test.elapsed));
+                return { new_iters, test.elapsed / test.iterations * new_iters * cfg.benchmarkSamples(), fun, std::chrono::duration_cast<FloatDuration<Clock>>(Detail::warmup_time), Detail::warmup_iterations };
+            }
 
-        void testGroupEnded(TestGroupStats const& testGroupStats) override;
+            template <typename Clock = default_clock>
+            void run() {
+                IConfigPtr cfg = getCurrentContext().getConfig();
 
-        void testRunEndedCumulative() override;
+                auto env = Detail::measure_environment<Clock>();
 
-        void writeGroup(TestGroupNode const& groupNode, double suiteTime);
+                getResultCapture().benchmarkPreparing(name);
+                CATCH_TRY{
+                    auto plan = user_code([&] {
+                        return prepare<Clock>(*cfg, env);
+                    });
 
-        void writeTestCase(TestCaseNode const& testCaseNode);
+                    BenchmarkInfo info {
+                        name,
+                        plan.estimated_duration.count(),
+                        plan.iterations_per_sample,
+                        cfg->benchmarkSamples(),
+                        cfg->benchmarkResamples(),
+                        env.clock_resolution.mean.count(),
+                        env.clock_cost.mean.count()
+                    };
 
-        void writeSection(std::string const& className,
-                          std::string const& rootName,
-                          SectionNode const& sectionNode);
+                    getResultCapture().benchmarkStarting(info);
 
-        void writeAssertions(SectionNode const& sectionNode);
-        void writeAssertion(AssertionStats const& stats);
+                    auto samples = user_code([&] {
+                        return plan.template run<Clock>(*cfg, env);
+                    });
 
-        XmlWriter xml;
-        Timer suiteTimer;
-        std::string stdOutForSuite;
-        std::string stdErrForSuite;
-        unsigned int unexpectedExceptions = 0;
-        bool m_okToFail = false;
-    };
+                    auto analysis = Detail::analyse(*cfg, env, samples.begin(), samples.end());
+                    BenchmarkStats<FloatDuration<Clock>> stats{ info, analysis.samples, analysis.mean, analysis.standard_deviation, analysis.outliers, analysis.outlier_variance };
+                    getResultCapture().benchmarkEnded(stats);
 
-} // end namespace Catch
+                } CATCH_CATCH_ALL{
+                    if (translateActiveException() != Detail::benchmarkErrorMsg) // benchmark errors have been reported, otherwise rethrow.
+                        std::rethrow_exception(std::current_exception());
+                }
+            }
 
-// end catch_reporter_junit.h
-// start catch_reporter_xml.h
+            // sets lambda to be used in fun *and* executes benchmark!
+            template <typename Fun,
+                typename std::enable_if<!Detail::is_related<Fun, Benchmark>::value, int>::type = 0>
+                Benchmark & operator=(Fun func) {
+                fun = Detail::BenchmarkFunction(func);
+                run();
+                return *this;
+            }
 
-namespace Catch {
-    class XmlReporter : public StreamingReporterBase<XmlReporter> {
-    public:
-        XmlReporter(ReporterConfig const& _config);
+            explicit operator bool() {
+                return true;
+            }
 
-        ~XmlReporter() override;
+        private:
+            Detail::BenchmarkFunction fun;
+            std::string name;
+        };
+    }
+} // namespace Catch
 
-        static std::string getDescription();
+#define INTERNAL_CATCH_GET_1_ARG(arg1, arg2, ...) arg1
+#define INTERNAL_CATCH_GET_2_ARG(arg1, arg2, ...) arg2
 
-        virtual std::string getStylesheetRef() const;
+#define INTERNAL_CATCH_BENCHMARK(BenchmarkName, name, benchmarkIndex)\
+    if( Catch::Benchmark::Benchmark BenchmarkName{name} ) \
+        BenchmarkName = [&](int benchmarkIndex)
 
-        void writeSourceInfo(SourceLineInfo const& sourceInfo);
+#define INTERNAL_CATCH_BENCHMARK_ADVANCED(BenchmarkName, name)\
+    if( Catch::Benchmark::Benchmark BenchmarkName{name} ) \
+        BenchmarkName = [&]
 
-    public: // StreamingReporterBase
+// end catch_benchmark.hpp
+// start catch_constructor.hpp
 
-        void noMatchingTestCases(std::string const& s) override;
+// Constructor and destructor helpers
 
-        void testRunStarting(TestRunInfo const& testInfo) override;
 
-        void testGroupStarting(GroupInfo const& groupInfo) override;
+#include <type_traits>
 
-        void testCaseStarting(TestCaseInfo const& testInfo) override;
+namespace Catch {
+    namespace Detail {
+        template <typename T, bool Destruct>
+        struct ObjectStorage
+        {
+            using TStorage = typename std::aligned_storage<sizeof(T), std::alignment_of<T>::value>::type;
 
-        void sectionStarting(SectionInfo const& sectionInfo) override;
+            ObjectStorage() : data() {}
 
-        void assertionStarting(AssertionInfo const&) override;
+            ObjectStorage(const ObjectStorage& other)
+            {
+                new(&data) T(other.stored_object());
+            }
 
-        bool assertionEnded(AssertionStats const& assertionStats) override;
+            ObjectStorage(ObjectStorage&& other)
+            {
+                new(&data) T(std::move(other.stored_object()));
+            }
 
-        void sectionEnded(SectionStats const& sectionStats) override;
+            ~ObjectStorage() { destruct_on_exit<T>(); }
 
-        void testCaseEnded(TestCaseStats const& testCaseStats) override;
+            template <typename... Args>
+            void construct(Args&&... args)
+            {
+                new (&data) T(std::forward<Args>(args)...);
+            }
 
-        void testGroupEnded(TestGroupStats const& testGroupStats) override;
+            template <bool AllowManualDestruction = !Destruct>
+            typename std::enable_if<AllowManualDestruction>::type destruct()
+            {
+                stored_object().~T();
+            }
 
-        void testRunEnded(TestRunStats const& testRunStats) override;
+        private:
+            // If this is a constructor benchmark, destruct the underlying object
+            template <typename U>
+            void destruct_on_exit(typename std::enable_if<Destruct, U>::type* = 0) { destruct<true>(); }
+            // Otherwise, don't
+            template <typename U>
+            void destruct_on_exit(typename std::enable_if<!Destruct, U>::type* = 0) { }
+
+            T& stored_object()
+            {
+                return *static_cast<T*>(static_cast<void*>(&data));
+            }
 
-    private:
-        Timer m_testCaseTimer;
-        XmlWriter m_xml;
-        int m_sectionDepth = 0;
-    };
+            TStorage data;
+        };
+    }
 
-} // end namespace Catch
+    template <typename T>
+    using storage_for = Detail::ObjectStorage<T, true>;
 
-// end catch_reporter_xml.h
+    template <typename T>
+    using destructable_object = Detail::ObjectStorage<T, false>;
+}
 
-// end catch_external_interfaces.h
+// end catch_constructor.hpp
+// end catch_benchmarking_all.hpp
 #endif
 
 #endif // ! CATCH_CONFIG_IMPL_ONLY
@@ -4474,7 +7436,7 @@ namespace TestCaseTracking {
 
         // Debug/ checking
         virtual bool isSectionTracker() const = 0;
-        virtual bool isIndexTracker() const = 0;
+        virtual bool isGeneratorTracker() const = 0;
     };
 
     class TrackerContext {
@@ -4491,8 +7453,6 @@ namespace TestCaseTracking {
 
     public:
 
-        static TrackerContext& instance();
-
         ITracker& startRun();
         void endRun();
 
@@ -4515,13 +7475,6 @@ namespace TestCaseTracking {
             Failed
         };
 
-        class TrackerHasName {
-            NameAndLocation m_nameAndLocation;
-        public:
-            TrackerHasName( NameAndLocation const& nameAndLocation );
-            bool operator ()( ITrackerPtr const& tracker ) const;
-        };
-
         using Children = std::vector<ITrackerPtr>;
         NameAndLocation m_nameAndLocation;
         TrackerContext& m_ctx;
@@ -4546,7 +7499,7 @@ namespace TestCaseTracking {
         void openChild() override;
 
         bool isSectionTracker() const override;
-        bool isIndexTracker() const override;
+        bool isGeneratorTracker() const override;
 
         void open();
 
@@ -4561,11 +7514,14 @@ namespace TestCaseTracking {
 
     class SectionTracker : public TrackerBase {
         std::vector<std::string> m_filters;
+        std::string m_trimmed_name;
     public:
         SectionTracker( NameAndLocation const& nameAndLocation, TrackerContext& ctx, ITracker* parent );
 
         bool isSectionTracker() const override;
 
+        bool isComplete() const override;
+
         static SectionTracker& acquire( TrackerContext& ctx, NameAndLocation const& nameAndLocation );
 
         void tryOpen();
@@ -4574,28 +7530,11 @@ namespace TestCaseTracking {
         void addNextFilters( std::vector<std::string> const& filters );
     };
 
-    class IndexTracker : public TrackerBase {
-        int m_size;
-        int m_index = -1;
-    public:
-        IndexTracker( NameAndLocation const& nameAndLocation, TrackerContext& ctx, ITracker* parent, int size );
-
-        bool isIndexTracker() const override;
-        void close() override;
-
-        static IndexTracker& acquire( TrackerContext& ctx, NameAndLocation const& nameAndLocation, int size );
-
-        int index() const;
-
-        void moveNext();
-    };
-
 } // namespace TestCaseTracking
 
 using TestCaseTracking::ITracker;
 using TestCaseTracking::TrackerContext;
 using TestCaseTracking::SectionTracker;
-using TestCaseTracking::IndexTracker;
 
 } // namespace Catch
 
@@ -4607,11 +7546,223 @@ namespace Catch {
 
     struct LeakDetector {
         LeakDetector();
+        ~LeakDetector();
     };
 
 }
 // end catch_leak_detector.h
 // Cpp files will be included in the single-header file here
+// start catch_stats.cpp
+
+// Statistical analysis tools
+
+#if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
+
+#include <cassert>
+#include <random>
+
+#if defined(CATCH_CONFIG_USE_ASYNC)
+#include <future>
+#endif
+
+namespace {
+    double erf_inv(double x) {
+        // Code accompanying the article "Approximating the erfinv function" in GPU Computing Gems, Volume 2
+        double w, p;
+
+        w = -log((1.0 - x) * (1.0 + x));
+
+        if (w < 6.250000) {
+            w = w - 3.125000;
+            p = -3.6444120640178196996e-21;
+            p = -1.685059138182016589e-19 + p * w;
+            p = 1.2858480715256400167e-18 + p * w;
+            p = 1.115787767802518096e-17 + p * w;
+            p = -1.333171662854620906e-16 + p * w;
+            p = 2.0972767875968561637e-17 + p * w;
+            p = 6.6376381343583238325e-15 + p * w;
+            p = -4.0545662729752068639e-14 + p * w;
+            p = -8.1519341976054721522e-14 + p * w;
+            p = 2.6335093153082322977e-12 + p * w;
+            p = -1.2975133253453532498e-11 + p * w;
+            p = -5.4154120542946279317e-11 + p * w;
+            p = 1.051212273321532285e-09 + p * w;
+            p = -4.1126339803469836976e-09 + p * w;
+            p = -2.9070369957882005086e-08 + p * w;
+            p = 4.2347877827932403518e-07 + p * w;
+            p = -1.3654692000834678645e-06 + p * w;
+            p = -1.3882523362786468719e-05 + p * w;
+            p = 0.0001867342080340571352 + p * w;
+            p = -0.00074070253416626697512 + p * w;
+            p = -0.0060336708714301490533 + p * w;
+            p = 0.24015818242558961693 + p * w;
+            p = 1.6536545626831027356 + p * w;
+        } else if (w < 16.000000) {
+            w = sqrt(w) - 3.250000;
+            p = 2.2137376921775787049e-09;
+            p = 9.0756561938885390979e-08 + p * w;
+            p = -2.7517406297064545428e-07 + p * w;
+            p = 1.8239629214389227755e-08 + p * w;
+            p = 1.5027403968909827627e-06 + p * w;
+            p = -4.013867526981545969e-06 + p * w;
+            p = 2.9234449089955446044e-06 + p * w;
+            p = 1.2475304481671778723e-05 + p * w;
+            p = -4.7318229009055733981e-05 + p * w;
+            p = 6.8284851459573175448e-05 + p * w;
+            p = 2.4031110387097893999e-05 + p * w;
+            p = -0.0003550375203628474796 + p * w;
+            p = 0.00095328937973738049703 + p * w;
+            p = -0.0016882755560235047313 + p * w;
+            p = 0.0024914420961078508066 + p * w;
+            p = -0.0037512085075692412107 + p * w;
+            p = 0.005370914553590063617 + p * w;
+            p = 1.0052589676941592334 + p * w;
+            p = 3.0838856104922207635 + p * w;
+        } else {
+            w = sqrt(w) - 5.000000;
+            p = -2.7109920616438573243e-11;
+            p = -2.5556418169965252055e-10 + p * w;
+            p = 1.5076572693500548083e-09 + p * w;
+            p = -3.7894654401267369937e-09 + p * w;
+            p = 7.6157012080783393804e-09 + p * w;
+            p = -1.4960026627149240478e-08 + p * w;
+            p = 2.9147953450901080826e-08 + p * w;
+            p = -6.7711997758452339498e-08 + p * w;
+            p = 2.2900482228026654717e-07 + p * w;
+            p = -9.9298272942317002539e-07 + p * w;
+            p = 4.5260625972231537039e-06 + p * w;
+            p = -1.9681778105531670567e-05 + p * w;
+            p = 7.5995277030017761139e-05 + p * w;
+            p = -0.00021503011930044477347 + p * w;
+            p = -0.00013871931833623122026 + p * w;
+            p = 1.0103004648645343977 + p * w;
+            p = 4.8499064014085844221 + p * w;
+        }
+        return p * x;
+    }
+
+    double standard_deviation(std::vector<double>::iterator first, std::vector<double>::iterator last) {
+        auto m = Catch::Benchmark::Detail::mean(first, last);
+        double variance = std::accumulate(first, last, 0., [m](double a, double b) {
+            double diff = b - m;
+            return a + diff * diff;
+            }) / (last - first);
+            return std::sqrt(variance);
+    }
+
+}
+
+namespace Catch {
+    namespace Benchmark {
+        namespace Detail {
+
+            double weighted_average_quantile(int k, int q, std::vector<double>::iterator first, std::vector<double>::iterator last) {
+                auto count = last - first;
+                double idx = (count - 1) * k / static_cast<double>(q);
+                int j = static_cast<int>(idx);
+                double g = idx - j;
+                std::nth_element(first, first + j, last);
+                auto xj = first[j];
+                if (g == 0) return xj;
+
+                auto xj1 = *std::min_element(first + (j + 1), last);
+                return xj + g * (xj1 - xj);
+            }
+
+            double erfc_inv(double x) {
+                return erf_inv(1.0 - x);
+            }
+
+            double normal_quantile(double p) {
+                static const double ROOT_TWO = std::sqrt(2.0);
+
+                double result = 0.0;
+                assert(p >= 0 && p <= 1);
+                if (p < 0 || p > 1) {
+                    return result;
+                }
+
+                result = -erfc_inv(2.0 * p);
+                // result *= normal distribution standard deviation (1.0) * sqrt(2)
+                result *= /*sd * */ ROOT_TWO;
+                // result += normal disttribution mean (0)
+                return result;
+            }
+
+            double outlier_variance(Estimate<double> mean, Estimate<double> stddev, int n) {
+                double sb = stddev.point;
+                double mn = mean.point / n;
+                double mg_min = mn / 2.;
+                double sg = std::min(mg_min / 4., sb / std::sqrt(n));
+                double sg2 = sg * sg;
+                double sb2 = sb * sb;
+
+                auto c_max = [n, mn, sb2, sg2](double x) -> double {
+                    double k = mn - x;
+                    double d = k * k;
+                    double nd = n * d;
+                    double k0 = -n * nd;
+                    double k1 = sb2 - n * sg2 + nd;
+                    double det = k1 * k1 - 4 * sg2 * k0;
+                    return (int)(-2. * k0 / (k1 + std::sqrt(det)));
+                };
+
+                auto var_out = [n, sb2, sg2](double c) {
+                    double nc = n - c;
+                    return (nc / n) * (sb2 - nc * sg2);
+                };
+
+                return std::min(var_out(1), var_out(std::min(c_max(0.), c_max(mg_min)))) / sb2;
+            }
+
+            bootstrap_analysis analyse_samples(double confidence_level, int n_resamples, std::vector<double>::iterator first, std::vector<double>::iterator last) {
+                CATCH_INTERNAL_START_WARNINGS_SUPPRESSION
+                CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS
+                static std::random_device entropy;
+                CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION
+
+                auto n = static_cast<int>(last - first); // seriously, one can't use integral types without hell in C++
+
+                auto mean = &Detail::mean<std::vector<double>::iterator>;
+                auto stddev = &standard_deviation;
+
+#if defined(CATCH_CONFIG_USE_ASYNC)
+                auto Estimate = [=](double(*f)(std::vector<double>::iterator, std::vector<double>::iterator)) {
+                    auto seed = entropy();
+                    return std::async(std::launch::async, [=] {
+                        std::mt19937 rng(seed);
+                        auto resampled = resample(rng, n_resamples, first, last, f);
+                        return bootstrap(confidence_level, first, last, resampled, f);
+                    });
+                };
+
+                auto mean_future = Estimate(mean);
+                auto stddev_future = Estimate(stddev);
+
+                auto mean_estimate = mean_future.get();
+                auto stddev_estimate = stddev_future.get();
+#else
+                auto Estimate = [=](double(*f)(std::vector<double>::iterator, std::vector<double>::iterator)) {
+                    auto seed = entropy();
+                    std::mt19937 rng(seed);
+                    auto resampled = resample(rng, n_resamples, first, last, f);
+                    return bootstrap(confidence_level, first, last, resampled, f);
+                };
+
+                auto mean_estimate = Estimate(mean);
+                auto stddev_estimate = Estimate(stddev);
+#endif // CATCH_USE_ASYNC
+
+                double outlier_variance = Detail::outlier_variance(mean_estimate, stddev_estimate, n);
+
+                return { mean_estimate, stddev_estimate, outlier_variance };
+            }
+        } // namespace Detail
+    } // namespace Benchmark
+} // namespace Catch
+
+#endif // CATCH_CONFIG_ENABLE_BENCHMARKING
+// end catch_stats.cpp
 // start catch_approx.cpp
 
 #include <cmath>
@@ -4641,6 +7792,12 @@ namespace Detail {
         return Approx( 0 );
     }
 
+    Approx Approx::operator-() const {
+        auto temp(*this);
+        temp.m_value = -temp.m_value;
+        return temp;
+    }
+
     std::string Approx::toString() const {
         ReusableStringStream rss;
         rss << "Approx( " << ::Catch::Detail::stringify( m_value ) << " )";
@@ -4650,11 +7807,35 @@ namespace Detail {
     bool Approx::equalityComparisonImpl(const double other) const {
         // First try with fixed margin, then compute margin based on epsilon, scale and Approx's value
         // Thanks to Richard Harris for his help refining the scaled margin value
-        return marginComparison(m_value, other, m_margin) || marginComparison(m_value, other, m_epsilon * (m_scale + std::fabs(m_value)));
+        return marginComparison(m_value, other, m_margin)
+            || marginComparison(m_value, other, m_epsilon * (m_scale + std::fabs(std::isinf(m_value)? 0 : m_value)));
+    }
+
+    void Approx::setMargin(double newMargin) {
+        CATCH_ENFORCE(newMargin >= 0,
+            "Invalid Approx::margin: " << newMargin << '.'
+            << " Approx::Margin has to be non-negative.");
+        m_margin = newMargin;
+    }
+
+    void Approx::setEpsilon(double newEpsilon) {
+        CATCH_ENFORCE(newEpsilon >= 0 && newEpsilon <= 1.0,
+            "Invalid Approx::epsilon: " << newEpsilon << '.'
+            << " Approx::epsilon has to be in [0, 1]");
+        m_epsilon = newEpsilon;
     }
 
 } // end namespace Detail
 
+namespace literals {
+    Detail::Approx operator "" _a(long double val) {
+        return Detail::Approx(val);
+    }
+    Detail::Approx operator "" _a(unsigned long long val) {
+        return Detail::Approx(val);
+    }
+} // end namespace literals
+
 std::string StringMaker<Catch::Detail::Approx>::convert(Catch::Detail::Approx const& value) {
     return value.toString();
 }
@@ -4663,58 +7844,6 @@ std::string StringMaker<Catch::Detail::Approx>::convert(Catch::Detail::Approx co
 // end catch_approx.cpp
 // start catch_assertionhandler.cpp
 
-// start catch_context.h
-
-#include <memory>
-
-namespace Catch {
-
-    struct IResultCapture;
-    struct IRunner;
-    struct IConfig;
-    struct IMutableContext;
-
-    using IConfigPtr = std::shared_ptr<IConfig const>;
-
-    struct IContext
-    {
-        virtual ~IContext();
-
-        virtual IResultCapture* getResultCapture() = 0;
-        virtual IRunner* getRunner() = 0;
-        virtual IConfigPtr const& getConfig() const = 0;
-    };
-
-    struct IMutableContext : IContext
-    {
-        virtual ~IMutableContext();
-        virtual void setResultCapture( IResultCapture* resultCapture ) = 0;
-        virtual void setRunner( IRunner* runner ) = 0;
-        virtual void setConfig( IConfigPtr const& config ) = 0;
-
-    private:
-        static IMutableContext *currentContext;
-        friend IMutableContext& getCurrentMutableContext();
-        friend void cleanUpContext();
-        static void createContext();
-    };
-
-    inline IMutableContext& getCurrentMutableContext()
-    {
-        if( !IMutableContext::currentContext )
-            IMutableContext::createContext();
-        return *IMutableContext::currentContext;
-    }
-
-    inline IContext& getCurrentContext()
-    {
-        return getCurrentMutableContext();
-    }
-
-    void cleanUpContext();
-}
-
-// end catch_context.h
 // start catch_debugger.h
 
 namespace Catch {
@@ -4744,12 +7873,9 @@ namespace Catch {
 #endif
 
 #ifdef CATCH_TRAP
-    #define CATCH_BREAK_INTO_DEBUGGER() if( Catch::isDebuggerActive() ) { CATCH_TRAP(); }
+    #define CATCH_BREAK_INTO_DEBUGGER() []{ if( Catch::isDebuggerActive() ) { CATCH_TRAP(); } }()
 #else
-    namespace Catch {
-        inline void doNothing() {}
-    }
-    #define CATCH_BREAK_INTO_DEBUGGER() Catch::doNothing()
+    #define CATCH_BREAK_INTO_DEBUGGER() []{}()
 #endif
 
 // end catch_debugger.h
@@ -4896,12 +8022,20 @@ namespace Catch {
         void sectionEnded( SectionEndInfo const& endInfo ) override;
         void sectionEndedEarly( SectionEndInfo const& endInfo ) override;
 
+        auto acquireGeneratorTracker( SourceLineInfo const& lineInfo ) -> IGeneratorTracker& override;
+
+#if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
+        void benchmarkPreparing( std::string const& name ) override;
         void benchmarkStarting( BenchmarkInfo const& info ) override;
-        void benchmarkEnded( BenchmarkStats const& stats ) override;
+        void benchmarkEnded( BenchmarkStats<> const& stats ) override;
+        void benchmarkFailed( std::string const& error ) override;
+#endif // CATCH_CONFIG_ENABLE_BENCHMARKING
 
         void pushScopedMessage( MessageInfo const& message ) override;
         void popScopedMessage( MessageInfo const& message ) override;
 
+        void emplaceUnscopedMessage( MessageBuilder const& builder ) override;
+
         std::string getCurrentTestName() const override;
 
         const AssertionResult* getLastResult() const override;
@@ -4942,13 +8076,14 @@ namespace Catch {
         TestRunInfo m_runInfo;
         IMutableContext& m_context;
         TestCase const* m_activeTestCase = nullptr;
-        ITracker* m_testCaseTracker;
+        ITracker* m_testCaseTracker = nullptr;
         Option<AssertionResult> m_lastResult;
 
         IConfigPtr m_config;
         Totals m_totals;
         IStreamingReporterPtr m_reporter;
         std::vector<MessageInfo> m_messages;
+        std::vector<ScopedMessage> m_messageScopes; /* Keeps owners of so-called unscoped messages. */
         AssertionInfo m_lastAssertionInfo;
         std::vector<SectionEndInfo> m_unfinishedSections;
         std::vector<ITracker*> m_activeSections;
@@ -4958,14 +8093,18 @@ namespace Catch {
         bool m_includeSuccessfulResults;
     };
 
+    void seedRng(IConfig const& config);
+    unsigned int rngSeed();
 } // end namespace Catch
 
 // end catch_run_context.h
 namespace Catch {
 
-    auto operator <<( std::ostream& os, ITransientExpression const& expr ) -> std::ostream& {
-        expr.streamReconstructedExpression( os );
-        return os;
+    namespace {
+        auto operator <<( std::ostream& os, ITransientExpression const& expr ) -> std::ostream& {
+            expr.streamReconstructedExpression( os );
+            return os;
+        }
     }
 
     LazyExpression::LazyExpression( bool isNegated )
@@ -4995,7 +8134,7 @@ namespace Catch {
     }
 
     AssertionHandler::AssertionHandler
-        (   StringRef macroName,
+        (   StringRef const& macroName,
             SourceLineInfo const& lineInfo,
             StringRef capturedExpression,
             ResultDisposition::Flags resultDisposition )
@@ -5024,8 +8163,13 @@ namespace Catch {
             // (To go back to the test and change execution, jump over the throw, next)
             CATCH_BREAK_INTO_DEBUGGER();
         }
-        if( m_reaction.shouldThrow )
+        if (m_reaction.shouldThrow) {
+#if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
             throw Catch::TestFailureException();
+#else
+            CATCH_ERROR( "Test failure requires aborting test!" );
+#endif
+        }
     }
     void AssertionHandler::setCompleted() {
         m_completed = true;
@@ -5052,7 +8196,7 @@ namespace Catch {
 
     // This is the overload that takes a string and infers the Equals matcher from it
     // The more general overload, that takes any string matcher, is in catch_capture_matchers.cpp
-    void handleExceptionMatchExpr( AssertionHandler& handler, std::string const& str, StringRef matcherString  ) {
+    void handleExceptionMatchExpr( AssertionHandler& handler, std::string const& str, StringRef const& matcherString  ) {
         handleExceptionMatchExpr( handler, Matchers::Equals( str ), matcherString );
     }
 
@@ -5097,7 +8241,7 @@ namespace Catch {
     }
 
     bool AssertionResult::hasExpression() const {
-        return m_info.capturedExpression[0] != 0;
+        return !m_info.capturedExpression.empty();
     }
 
     bool AssertionResult::hasMessage() const {
@@ -5105,16 +8249,22 @@ namespace Catch {
     }
 
     std::string AssertionResult::getExpression() const {
-        if( isFalseTest( m_info.resultDisposition ) )
-            return "!(" + m_info.capturedExpression + ")";
-        else
-            return m_info.capturedExpression;
+        // Possibly overallocating by 3 characters should be basically free
+        std::string expr; expr.reserve(m_info.capturedExpression.size() + 3);
+        if (isFalseTest(m_info.resultDisposition)) {
+            expr += "!(";
+        }
+        expr += m_info.capturedExpression;
+        if (isFalseTest(m_info.resultDisposition)) {
+            expr += ')';
+        }
+        return expr;
     }
 
     std::string AssertionResult::getExpressionInMacro() const {
         std::string expr;
-        if( m_info.macroName[0] == 0 )
-            expr = m_info.capturedExpression;
+        if( m_info.macroName.empty() )
+            expr = static_cast<std::string>(m_info.capturedExpression);
         else {
             expr.reserve( m_info.macroName.size() + m_info.capturedExpression.size() + 4 );
             expr += m_info.macroName;
@@ -5149,32 +8299,6 @@ namespace Catch {
 
 } // end namespace Catch
 // end catch_assertionresult.cpp
-// start catch_benchmark.cpp
-
-namespace Catch {
-
-    auto BenchmarkLooper::getResolution() -> uint64_t {
-        return getEstimatedClockResolution() * getCurrentContext().getConfig()->benchmarkResolutionMultiple();
-    }
-
-    void BenchmarkLooper::reportStart() {
-        getResultCapture().benchmarkStarting( { m_name } );
-    }
-    auto BenchmarkLooper::needsMoreIterations() -> bool {
-        auto elapsed = m_timer.getElapsedNanoseconds();
-
-        // Exponentially increasing iterations until we're confident in our timer resolution
-        if( elapsed < m_resolution ) {
-            m_iterationsToRun *= 10;
-            return true;
-        }
-
-        getResultCapture().benchmarkEnded( { { m_name }, m_count, elapsed } );
-        return false;
-    }
-
-} // end namespace Catch
-// end catch_benchmark.cpp
 // start catch_capture_matchers.cpp
 
 namespace Catch {
@@ -5184,7 +8308,7 @@ namespace Catch {
     // This is the general overload that takes a any string matcher
     // There is another overload, in catch_assertionhandler.h/.cpp, that only takes a string and infers
     // the Equals matcher (so the header does not mention matchers)
-    void handleExceptionMatchExpr( AssertionHandler& handler, StringMatcher const& matcher, StringRef matcherString  ) {
+    void handleExceptionMatchExpr( AssertionHandler& handler, StringMatcher const& matcher, StringRef const& matcherString  ) {
         std::string exceptionMessage = Catch::translateActiveException();
         MatchExpr<std::string, StringMatcher const&> expr( exceptionMessage, matcher, matcherString );
         handler.handleExpr( expr );
@@ -5220,7 +8344,7 @@ namespace Catch {
 //
 // See https://github.com/philsquared/Clara for more details
 
-// Clara v1.1.4
+// Clara v1.1.5
 
 
 #ifndef CATCH_CLARA_CONFIG_CONSOLE_WIDTH
@@ -5246,8 +8370,8 @@ namespace Catch {
 //
 // A single-header library for wrapping and laying out basic text, by Phil Nash
 //
-// This work is licensed under the BSD 2-Clause license.
-// See the accompanying LICENSE file, or the one at https://opensource.org/licenses/BSD-2-Clause
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
 //
 // This project is hosted at https://github.com/philsquared/textflowcpp
 
@@ -5261,314 +8385,328 @@ namespace Catch {
 #define CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH 80
 #endif
 
-namespace Catch { namespace clara { namespace TextFlow {
-
-    inline auto isWhitespace( char c ) -> bool {
-        static std::string chars = " \t\n\r";
-        return chars.find( c ) != std::string::npos;
-    }
-    inline auto isBreakableBefore( char c ) -> bool {
-        static std::string chars = "[({<|";
-        return chars.find( c ) != std::string::npos;
-    }
-    inline auto isBreakableAfter( char c ) -> bool {
-        static std::string chars = "])}>.,:;*+-=&/\\";
-        return chars.find( c ) != std::string::npos;
-    }
-
-    class Columns;
-
-    class Column {
-        std::vector<std::string> m_strings;
-        size_t m_width = CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH;
-        size_t m_indent = 0;
-        size_t m_initialIndent = std::string::npos;
-
-    public:
-        class iterator {
-            friend Column;
-
-            Column const& m_column;
-            size_t m_stringIndex = 0;
-            size_t m_pos = 0;
-
-            size_t m_len = 0;
-            size_t m_end = 0;
-            bool m_suffix = false;
-
-            iterator( Column const& column, size_t stringIndex )
-            :   m_column( column ),
-                m_stringIndex( stringIndex )
-            {}
-
-            auto line() const -> std::string const& { return m_column.m_strings[m_stringIndex]; }
-
-            auto isBoundary( size_t at ) const -> bool {
-                assert( at > 0 );
-                assert( at <= line().size() );
-
-                return at == line().size() ||
-                       ( isWhitespace( line()[at] ) && !isWhitespace( line()[at-1] ) ) ||
-                       isBreakableBefore( line()[at] ) ||
-                       isBreakableAfter( line()[at-1] );
-            }
-
-            void calcLength() {
-                assert( m_stringIndex < m_column.m_strings.size() );
-
-                m_suffix = false;
-                auto width = m_column.m_width-indent();
-                m_end = m_pos;
-                while( m_end < line().size() && line()[m_end] != '\n' )
-                    ++m_end;
-
-                if( m_end < m_pos + width ) {
-                    m_len = m_end - m_pos;
-                }
-                else {
-                    size_t len = width;
-                    while (len > 0 && !isBoundary(m_pos + len))
-                        --len;
-                    while (len > 0 && isWhitespace( line()[m_pos + len - 1] ))
-                        --len;
-
-                    if (len > 0) {
-                        m_len = len;
-                    } else {
-                        m_suffix = true;
-                        m_len = width - 1;
-                    }
-                }
-            }
-
-            auto indent() const -> size_t {
-                auto initial = m_pos == 0 && m_stringIndex == 0 ? m_column.m_initialIndent : std::string::npos;
-                return initial == std::string::npos ? m_column.m_indent : initial;
-            }
-
-            auto addIndentAndSuffix(std::string const &plain) const -> std::string {
-                return std::string( indent(), ' ' ) + (m_suffix ? plain + "-" : plain);
-            }
-
-        public:
-            explicit iterator( Column const& column ) : m_column( column ) {
-                assert( m_column.m_width > m_column.m_indent );
-                assert( m_column.m_initialIndent == std::string::npos || m_column.m_width > m_column.m_initialIndent );
-                calcLength();
-                if( m_len == 0 )
-                    m_stringIndex++; // Empty string
-            }
-
-            auto operator *() const -> std::string {
-                assert( m_stringIndex < m_column.m_strings.size() );
-                assert( m_pos <= m_end );
-                if( m_pos + m_column.m_width < m_end )
-                    return addIndentAndSuffix(line().substr(m_pos, m_len));
-                else
-                    return addIndentAndSuffix(line().substr(m_pos, m_end - m_pos));
-            }
-
-            auto operator ++() -> iterator& {
-                m_pos += m_len;
-                if( m_pos < line().size() && line()[m_pos] == '\n' )
-                    m_pos += 1;
-                else
-                    while( m_pos < line().size() && isWhitespace( line()[m_pos] ) )
-                        ++m_pos;
-
-                if( m_pos == line().size() ) {
-                    m_pos = 0;
-                    ++m_stringIndex;
-                }
-                if( m_stringIndex < m_column.m_strings.size() )
-                    calcLength();
-                return *this;
-            }
-            auto operator ++(int) -> iterator {
-                iterator prev( *this );
-                operator++();
-                return prev;
-            }
-
-            auto operator ==( iterator const& other ) const -> bool {
-                return
-                    m_pos == other.m_pos &&
-                    m_stringIndex == other.m_stringIndex &&
-                    &m_column == &other.m_column;
-            }
-            auto operator !=( iterator const& other ) const -> bool {
-                return !operator==( other );
-            }
-        };
-        using const_iterator = iterator;
-
-        explicit Column( std::string const& text ) { m_strings.push_back( text ); }
-
-        auto width( size_t newWidth ) -> Column& {
-            assert( newWidth > 0 );
-            m_width = newWidth;
-            return *this;
-        }
-        auto indent( size_t newIndent ) -> Column& {
-            m_indent = newIndent;
-            return *this;
-        }
-        auto initialIndent( size_t newIndent ) -> Column& {
-            m_initialIndent = newIndent;
-            return *this;
-        }
-
-        auto width() const -> size_t { return m_width; }
-        auto begin() const -> iterator { return iterator( *this ); }
-        auto end() const -> iterator { return { *this, m_strings.size() }; }
-
-        inline friend std::ostream& operator << ( std::ostream& os, Column const& col ) {
-            bool first = true;
-            for( auto line : col ) {
-                if( first )
-                    first = false;
-                else
-                    os << "\n";
-                os <<  line;
-            }
-            return os;
-        }
-
-        auto operator + ( Column const& other ) -> Columns;
-
-        auto toString() const -> std::string {
-            std::ostringstream oss;
-            oss << *this;
-            return oss.str();
-        }
-    };
-
-    class Spacer : public Column {
-
-    public:
-        explicit Spacer( size_t spaceWidth ) : Column( "" ) {
-            width( spaceWidth );
-        }
-    };
+namespace Catch {
+namespace clara {
+namespace TextFlow {
 
-    class Columns {
-        std::vector<Column> m_columns;
+inline auto isWhitespace(char c) -> bool {
+	static std::string chars = " \t\n\r";
+	return chars.find(c) != std::string::npos;
+}
+inline auto isBreakableBefore(char c) -> bool {
+	static std::string chars = "[({<|";
+	return chars.find(c) != std::string::npos;
+}
+inline auto isBreakableAfter(char c) -> bool {
+	static std::string chars = "])}>.,:;*+-=&/\\";
+	return chars.find(c) != std::string::npos;
+}
 
-    public:
+class Columns;
 
-        class iterator {
-            friend Columns;
-            struct EndTag {};
+class Column {
+	std::vector<std::string> m_strings;
+	size_t m_width = CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH;
+	size_t m_indent = 0;
+	size_t m_initialIndent = std::string::npos;
 
-            std::vector<Column> const& m_columns;
-            std::vector<Column::iterator> m_iterators;
-            size_t m_activeIterators;
+public:
+	class iterator {
+		friend Column;
+
+		Column const& m_column;
+		size_t m_stringIndex = 0;
+		size_t m_pos = 0;
+
+		size_t m_len = 0;
+		size_t m_end = 0;
+		bool m_suffix = false;
+
+		iterator(Column const& column, size_t stringIndex)
+			: m_column(column),
+			m_stringIndex(stringIndex) {}
+
+		auto line() const -> std::string const& { return m_column.m_strings[m_stringIndex]; }
+
+		auto isBoundary(size_t at) const -> bool {
+			assert(at > 0);
+			assert(at <= line().size());
+
+			return at == line().size() ||
+				(isWhitespace(line()[at]) && !isWhitespace(line()[at - 1])) ||
+				isBreakableBefore(line()[at]) ||
+				isBreakableAfter(line()[at - 1]);
+		}
+
+		void calcLength() {
+			assert(m_stringIndex < m_column.m_strings.size());
+
+			m_suffix = false;
+			auto width = m_column.m_width - indent();
+			m_end = m_pos;
+			if (line()[m_pos] == '\n') {
+				++m_end;
+			}
+			while (m_end < line().size() && line()[m_end] != '\n')
+				++m_end;
+
+			if (m_end < m_pos + width) {
+				m_len = m_end - m_pos;
+			} else {
+				size_t len = width;
+				while (len > 0 && !isBoundary(m_pos + len))
+					--len;
+				while (len > 0 && isWhitespace(line()[m_pos + len - 1]))
+					--len;
+
+				if (len > 0) {
+					m_len = len;
+				} else {
+					m_suffix = true;
+					m_len = width - 1;
+				}
+			}
+		}
+
+		auto indent() const -> size_t {
+			auto initial = m_pos == 0 && m_stringIndex == 0 ? m_column.m_initialIndent : std::string::npos;
+			return initial == std::string::npos ? m_column.m_indent : initial;
+		}
+
+		auto addIndentAndSuffix(std::string const &plain) const -> std::string {
+			return std::string(indent(), ' ') + (m_suffix ? plain + "-" : plain);
+		}
+
+	public:
+		using difference_type = std::ptrdiff_t;
+		using value_type = std::string;
+		using pointer = value_type * ;
+		using reference = value_type & ;
+		using iterator_category = std::forward_iterator_tag;
+
+		explicit iterator(Column const& column) : m_column(column) {
+			assert(m_column.m_width > m_column.m_indent);
+			assert(m_column.m_initialIndent == std::string::npos || m_column.m_width > m_column.m_initialIndent);
+			calcLength();
+			if (m_len == 0)
+				m_stringIndex++; // Empty string
+		}
+
+		auto operator *() const -> std::string {
+			assert(m_stringIndex < m_column.m_strings.size());
+			assert(m_pos <= m_end);
+			return addIndentAndSuffix(line().substr(m_pos, m_len));
+		}
+
+		auto operator ++() -> iterator& {
+			m_pos += m_len;
+			if (m_pos < line().size() && line()[m_pos] == '\n')
+				m_pos += 1;
+			else
+				while (m_pos < line().size() && isWhitespace(line()[m_pos]))
+					++m_pos;
+
+			if (m_pos == line().size()) {
+				m_pos = 0;
+				++m_stringIndex;
+			}
+			if (m_stringIndex < m_column.m_strings.size())
+				calcLength();
+			return *this;
+		}
+		auto operator ++(int) -> iterator {
+			iterator prev(*this);
+			operator++();
+			return prev;
+		}
+
+		auto operator ==(iterator const& other) const -> bool {
+			return
+				m_pos == other.m_pos &&
+				m_stringIndex == other.m_stringIndex &&
+				&m_column == &other.m_column;
+		}
+		auto operator !=(iterator const& other) const -> bool {
+			return !operator==(other);
+		}
+	};
+	using const_iterator = iterator;
+
+	explicit Column(std::string const& text) { m_strings.push_back(text); }
+
+	auto width(size_t newWidth) -> Column& {
+		assert(newWidth > 0);
+		m_width = newWidth;
+		return *this;
+	}
+	auto indent(size_t newIndent) -> Column& {
+		m_indent = newIndent;
+		return *this;
+	}
+	auto initialIndent(size_t newIndent) -> Column& {
+		m_initialIndent = newIndent;
+		return *this;
+	}
 
-            iterator( Columns const& columns, EndTag )
-            :   m_columns( columns.m_columns ),
-                m_activeIterators( 0 )
-            {
-                m_iterators.reserve( m_columns.size() );
+	auto width() const -> size_t { return m_width; }
+	auto begin() const -> iterator { return iterator(*this); }
+	auto end() const -> iterator { return { *this, m_strings.size() }; }
+
+	inline friend std::ostream& operator << (std::ostream& os, Column const& col) {
+		bool first = true;
+		for (auto line : col) {
+			if (first)
+				first = false;
+			else
+				os << "\n";
+			os << line;
+		}
+		return os;
+	}
 
-                for( auto const& col : m_columns )
-                    m_iterators.push_back( col.end() );
-            }
+	auto operator + (Column const& other)->Columns;
 
-        public:
-            explicit iterator( Columns const& columns )
-            :   m_columns( columns.m_columns ),
-                m_activeIterators( m_columns.size() )
-            {
-                m_iterators.reserve( m_columns.size() );
+	auto toString() const -> std::string {
+		std::ostringstream oss;
+		oss << *this;
+		return oss.str();
+	}
+};
 
-                for( auto const& col : m_columns )
-                    m_iterators.push_back( col.begin() );
-            }
+class Spacer : public Column {
 
-            auto operator ==( iterator const& other ) const -> bool {
-                return m_iterators == other.m_iterators;
-            }
-            auto operator !=( iterator const& other ) const -> bool {
-                return m_iterators != other.m_iterators;
-            }
-            auto operator *() const -> std::string {
-                std::string row, padding;
+public:
+	explicit Spacer(size_t spaceWidth) : Column("") {
+		width(spaceWidth);
+	}
+};
 
-                for( size_t i = 0; i < m_columns.size(); ++i ) {
-                    auto width = m_columns[i].width();
-                    if( m_iterators[i] != m_columns[i].end() ) {
-                        std::string col = *m_iterators[i];
-                        row += padding + col;
-                        if( col.size() < width )
-                            padding = std::string( width - col.size(), ' ' );
-                        else
-                            padding = "";
-                    }
-                    else {
-                        padding += std::string( width, ' ' );
-                    }
-                }
-                return row;
-            }
-            auto operator ++() -> iterator& {
-                for( size_t i = 0; i < m_columns.size(); ++i ) {
-                    if (m_iterators[i] != m_columns[i].end())
-                        ++m_iterators[i];
-                }
-                return *this;
-            }
-            auto operator ++(int) -> iterator {
-                iterator prev( *this );
-                operator++();
-                return prev;
-            }
-        };
-        using const_iterator = iterator;
+class Columns {
+	std::vector<Column> m_columns;
 
-        auto begin() const -> iterator { return iterator( *this ); }
-        auto end() const -> iterator { return { *this, iterator::EndTag() }; }
+public:
 
-        auto operator += ( Column const& col ) -> Columns& {
-            m_columns.push_back( col );
-            return *this;
-        }
-        auto operator + ( Column const& col ) -> Columns {
-            Columns combined = *this;
-            combined += col;
-            return combined;
-        }
+	class iterator {
+		friend Columns;
+		struct EndTag {};
+
+		std::vector<Column> const& m_columns;
+		std::vector<Column::iterator> m_iterators;
+		size_t m_activeIterators;
+
+		iterator(Columns const& columns, EndTag)
+			: m_columns(columns.m_columns),
+			m_activeIterators(0) {
+			m_iterators.reserve(m_columns.size());
+
+			for (auto const& col : m_columns)
+				m_iterators.push_back(col.end());
+		}
+
+	public:
+		using difference_type = std::ptrdiff_t;
+		using value_type = std::string;
+		using pointer = value_type * ;
+		using reference = value_type & ;
+		using iterator_category = std::forward_iterator_tag;
+
+		explicit iterator(Columns const& columns)
+			: m_columns(columns.m_columns),
+			m_activeIterators(m_columns.size()) {
+			m_iterators.reserve(m_columns.size());
+
+			for (auto const& col : m_columns)
+				m_iterators.push_back(col.begin());
+		}
+
+		auto operator ==(iterator const& other) const -> bool {
+			return m_iterators == other.m_iterators;
+		}
+		auto operator !=(iterator const& other) const -> bool {
+			return m_iterators != other.m_iterators;
+		}
+		auto operator *() const -> std::string {
+			std::string row, padding;
+
+			for (size_t i = 0; i < m_columns.size(); ++i) {
+				auto width = m_columns[i].width();
+				if (m_iterators[i] != m_columns[i].end()) {
+					std::string col = *m_iterators[i];
+					row += padding + col;
+					if (col.size() < width)
+						padding = std::string(width - col.size(), ' ');
+					else
+						padding = "";
+				} else {
+					padding += std::string(width, ' ');
+				}
+			}
+			return row;
+		}
+		auto operator ++() -> iterator& {
+			for (size_t i = 0; i < m_columns.size(); ++i) {
+				if (m_iterators[i] != m_columns[i].end())
+					++m_iterators[i];
+			}
+			return *this;
+		}
+		auto operator ++(int) -> iterator {
+			iterator prev(*this);
+			operator++();
+			return prev;
+		}
+	};
+	using const_iterator = iterator;
+
+	auto begin() const -> iterator { return iterator(*this); }
+	auto end() const -> iterator { return { *this, iterator::EndTag() }; }
+
+	auto operator += (Column const& col) -> Columns& {
+		m_columns.push_back(col);
+		return *this;
+	}
+	auto operator + (Column const& col) -> Columns {
+		Columns combined = *this;
+		combined += col;
+		return combined;
+	}
 
-        inline friend std::ostream& operator << ( std::ostream& os, Columns const& cols ) {
+	inline friend std::ostream& operator << (std::ostream& os, Columns const& cols) {
+
+		bool first = true;
+		for (auto line : cols) {
+			if (first)
+				first = false;
+			else
+				os << "\n";
+			os << line;
+		}
+		return os;
+	}
 
-            bool first = true;
-            for( auto line : cols ) {
-                if( first )
-                    first = false;
-                else
-                    os << "\n";
-                os << line;
-            }
-            return os;
-        }
+	auto toString() const -> std::string {
+		std::ostringstream oss;
+		oss << *this;
+		return oss.str();
+	}
+};
 
-        auto toString() const -> std::string {
-            std::ostringstream oss;
-            oss << *this;
-            return oss.str();
-        }
-    };
+inline auto Column::operator + (Column const& other) -> Columns {
+	Columns cols;
+	cols += *this;
+	cols += other;
+	return cols;
+}
+}
 
-    inline auto Column::operator + ( Column const& other ) -> Columns {
-        Columns cols;
-        cols += *this;
-        cols += other;
-        return cols;
-    }
-}}} // namespace Catch::clara::TextFlow
+}
+}
 
 // ----------- end of #include from clara_textflow.hpp -----------
 // ........... back in clara.hpp
 
+#include <cctype>
+#include <string>
 #include <memory>
 #include <set>
 #include <algorithm>
@@ -5860,7 +8998,7 @@ namespace detail {
     }
     inline auto convertInto( std::string const &source, bool &target ) -> ParserResult {
         std::string srcLC = source;
-        std::transform( srcLC.begin(), srcLC.end(), srcLC.begin(), []( char c ) { return static_cast<char>( ::tolower(c) ); } );
+        std::transform( srcLC.begin(), srcLC.end(), srcLC.begin(), []( char c ) { return static_cast<char>( std::tolower(c) ); } );
         if (srcLC == "y" || srcLC == "1" || srcLC == "true" || srcLC == "yes" || srcLC == "on")
             target = true;
         else if (srcLC == "n" || srcLC == "0" || srcLC == "false" || srcLC == "no" || srcLC == "off")
@@ -6508,9 +9646,15 @@ namespace Catch {
                     if( !line.empty() && !startsWith( line, '#' ) ) {
                         if( !startsWith( line, '"' ) )
                             line = '"' + line + '"';
-                        config.testsOrTags.push_back( line + ',' );
+                        config.testsOrTags.push_back( line );
+                        config.testsOrTags.push_back( "," );
+
                     }
                 }
+                //Remove comma in the end
+                if(!config.testsOrTags.empty())
+                    config.testsOrTags.erase( config.testsOrTags.end()-1 );
+
                 return ParserResult::ok( ParseResultType::Matched );
             };
         auto const setTestOrder = [&]( std::string const& order ) {
@@ -6567,6 +9711,18 @@ namespace Catch {
                 return ParserResult::runtimeError( "Unrecognised verbosity, '" + verbosity + "'" );
             return ParserResult::ok( ParseResultType::Matched );
         };
+        auto const setReporter = [&]( std::string const& reporter ) {
+            IReporterRegistry::FactoryMap const& factories = getRegistryHub().getReporterRegistry().getFactories();
+
+            auto lcReporter = toLower( reporter );
+            auto result = factories.find( lcReporter );
+
+            if( factories.end() != result )
+                config.reporterName = lcReporter;
+            else
+                return ParserResult::runtimeError( "Unrecognized reporter, '" + reporter + "'. Check available with --list-reporters" );
+            return ParserResult::ok( ParseResultType::Matched );
+        };
 
         auto cli
             = ExeName( config.processName )
@@ -6592,7 +9748,7 @@ namespace Catch {
             | Opt( config.outputFilename, "filename" )
                 ["-o"]["--out"]
                 ( "output filename" )
-            | Opt( config.reporterNames, "name" )
+            | Opt( setReporter, "name" )
                 ["-r"]["--reporter"]
                 ( "reporter to use (defaults to console)" )
             | Opt( config.name, "name" )
@@ -6643,11 +9799,19 @@ namespace Catch {
             | Opt( setWaitForKeypress, "start|exit|both" )
                 ["--wait-for-keypress"]
                 ( "waits for a keypress before exiting" )
-            | Opt( config.benchmarkResolutionMultiple, "multiplier" )
-                ["--benchmark-resolution-multiple"]
-                ( "multiple of clock resolution to run benchmarks" )
-
-            | Arg( config.testsOrTags, "test name|pattern|tags" )
+            | Opt( config.benchmarkSamples, "samples" )
+                ["--benchmark-samples"]
+                ( "number of samples to collect (default: 100)" )
+            | Opt( config.benchmarkResamples, "resamples" )
+                ["--benchmark-resamples"]
+                ( "number of resamples for the bootstrap (default: 100000)" )
+            | Opt( config.benchmarkConfidenceInterval, "confidence interval" )
+                ["--benchmark-confidence-interval"]
+                ( "confidence interval for the bootstrap (between 0 and 1, default: 0.95)" )
+            | Opt( config.benchmarkNoAnalysis )
+                ["--benchmark-no-analysis"]
+                ( "perform only measurements; do not perform any analysis" )
+			| Arg( config.testsOrTags, "test name|pattern|tags" )
                 ( "which test or tests to use" );
 
         return cli;
@@ -6662,14 +9826,13 @@ namespace Catch {
 
 namespace Catch {
 
-    bool SourceLineInfo::empty() const noexcept {
-        return file[0] == '\0';
-    }
     bool SourceLineInfo::operator == ( SourceLineInfo const& other ) const noexcept {
         return line == other.line && (file == other.file || std::strcmp(file, other.file) == 0);
     }
     bool SourceLineInfo::operator < ( SourceLineInfo const& other ) const noexcept {
-        return line < other.line || ( line == other.line && (std::strcmp(file, other.file) < 0));
+        // We can assume that the same file will usually have the same pointer.
+        // Thus, if the pointers are the same, there is no point in calling the strcmp
+        return line < other.line || ( line == other.line && file != other.file && (std::strcmp(file, other.file) < 0));
     }
 
     std::ostream& operator << ( std::ostream& os, SourceLineInfo const& info ) {
@@ -6692,34 +9855,29 @@ namespace Catch {
 // end catch_common.cpp
 // start catch_config.cpp
 
-// start catch_enforce.h
-
-#include <stdexcept>
-
-#define CATCH_PREPARE_EXCEPTION( type, msg ) \
-    type( ( Catch::ReusableStringStream() << msg ).str() )
-#define CATCH_INTERNAL_ERROR( msg ) \
-    throw CATCH_PREPARE_EXCEPTION( std::logic_error, CATCH_INTERNAL_LINEINFO << ": Internal Catch error: " << msg);
-#define CATCH_ERROR( msg ) \
-    throw CATCH_PREPARE_EXCEPTION( std::domain_error, msg )
-#define CATCH_ENFORCE( condition, msg ) \
-    do{ if( !(condition) ) CATCH_ERROR( msg ); } while(false)
-
-// end catch_enforce.h
 namespace Catch {
 
     Config::Config( ConfigData const& data )
     :   m_data( data ),
         m_stream( openStream() )
     {
-        TestSpecParser parser(ITagAliasRegistry::get());
-        if (data.testsOrTags.empty()) {
-            parser.parse("~[.]"); // All not hidden tests
+        // We need to trim filter specs to avoid trouble with superfluous
+        // whitespace (esp. important for bdd macros, as those are manually
+        // aligned with whitespace).
+
+        for (auto& elem : m_data.testsOrTags) {
+            elem = trim(elem);
         }
-        else {
+        for (auto& elem : m_data.sectionsToRun) {
+            elem = trim(elem);
+        }
+
+        TestSpecParser parser(ITagAliasRegistry::get());
+        if (!m_data.testsOrTags.empty()) {
             m_hasTestFilters = true;
-            for( auto const& testOrTags : data.testsOrTags )
-                parser.parse( testOrTags );
+            for (auto const& testOrTags : m_data.testsOrTags) {
+                parser.parse(testOrTags);
+            }
         }
         m_testSpec = parser.testSpec();
     }
@@ -6734,8 +9892,8 @@ namespace Catch {
     bool Config::listReporters() const      { return m_data.listReporters; }
 
     std::string Config::getProcessName() const { return m_data.processName; }
+    std::string const& Config::getReporterName() const { return m_data.reporterName; }
 
-    std::vector<std::string> const& Config::getReporterNames() const { return m_data.reporterNames; }
     std::vector<std::string> const& Config::getTestsOrTags() const { return m_data.testsOrTags; }
     std::vector<std::string> const& Config::getSectionsToRun() const { return m_data.sectionsToRun; }
 
@@ -6754,13 +9912,17 @@ namespace Catch {
     ShowDurations::OrNot Config::showDurations() const { return m_data.showDurations; }
     RunTests::InWhatOrder Config::runOrder() const     { return m_data.runOrder; }
     unsigned int Config::rngSeed() const               { return m_data.rngSeed; }
-    int Config::benchmarkResolutionMultiple() const    { return m_data.benchmarkResolutionMultiple; }
     UseColour::YesOrNo Config::useColour() const       { return m_data.useColour; }
     bool Config::shouldDebugBreak() const              { return m_data.shouldDebugBreak; }
     int Config::abortAfter() const                     { return m_data.abortAfter; }
     bool Config::showInvisibles() const                { return m_data.showInvisibles; }
     Verbosity Config::verbosity() const                { return m_data.verbosity; }
 
+    bool Config::benchmarkNoAnalysis() const           { return m_data.benchmarkNoAnalysis; }
+    int Config::benchmarkSamples() const               { return m_data.benchmarkSamples; }
+    double Config::benchmarkConfidenceInterval() const { return m_data.benchmarkConfidenceInterval; }
+    unsigned int Config::benchmarkResamples() const    { return m_data.benchmarkResamples; }
+
     IStream const* Config::openStream() {
         return Catch::makeStream(m_data.outputFilename);
     }
@@ -6834,7 +9996,7 @@ namespace {
             originalBackgroundAttributes = csbiInfo.wAttributes & ~( FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_BLUE | FOREGROUND_INTENSITY );
         }
 
-        virtual void use( Colour::Code _colourCode ) override {
+        void use( Colour::Code _colourCode ) override {
             switch( _colourCode ) {
                 case Colour::None:      return setTextAttribute( originalForegroundAttributes );
                 case Colour::White:     return setTextAttribute( FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_BLUE );
@@ -6897,7 +10059,7 @@ namespace {
     // https://github.com/philsquared/Catch/pull/131
     class PosixColourImpl : public IColourImpl {
     public:
-        virtual void use( Colour::Code _colourCode ) override {
+        void use( Colour::Code _colourCode ) override {
             switch( _colourCode ) {
                 case Colour::None:
                 case Colour::White:     return setColour( "[0m" );
@@ -6925,7 +10087,8 @@ namespace {
 
     private:
         void setColour( const char* _escapeCode ) {
-            Catch::cout() << '\033' << _escapeCode;
+            getCurrentContext().getConfig()->stream()
+                << '\033' << _escapeCode;
         }
     };
 
@@ -6986,7 +10149,13 @@ namespace Catch {
 
     void Colour::use( Code _colourCode ) {
         static IColourImpl* impl = platformColourInstance();
-        impl->use( _colourCode );
+        // Strictly speaking, this cannot possibly happen.
+        // However, under some conditions it does happen (see #1626),
+        // and this change is small enough that we can let practicality
+        // triumph over purity in this case.
+        if (impl != NULL) {
+            impl->use( _colourCode );
+        }
     }
 
     std::ostream& operator << ( std::ostream& os, Colour const& ) {
@@ -7007,27 +10176,27 @@ namespace Catch {
     class Context : public IMutableContext, NonCopyable {
 
     public: // IContext
-        virtual IResultCapture* getResultCapture() override {
+        IResultCapture* getResultCapture() override {
             return m_resultCapture;
         }
-        virtual IRunner* getRunner() override {
+        IRunner* getRunner() override {
             return m_runner;
         }
 
-        virtual IConfigPtr const& getConfig() const override {
+        IConfigPtr const& getConfig() const override {
             return m_config;
         }
 
-        virtual ~Context() override;
+        ~Context() override;
 
     public: // IMutableContext
-        virtual void setResultCapture( IResultCapture* resultCapture ) override {
+        void setResultCapture( IResultCapture* resultCapture ) override {
             m_resultCapture = resultCapture;
         }
-        virtual void setRunner( IRunner* runner ) override {
+        void setRunner( IRunner* runner ) override {
             m_runner = runner;
         }
-        virtual void setConfig( IConfigPtr const& config ) override {
+        void setConfig( IConfigPtr const& config ) override {
             m_config = config;
         }
 
@@ -7053,6 +10222,12 @@ namespace Catch {
     IContext::~IContext() = default;
     IMutableContext::~IMutableContext() = default;
     Context::~Context() = default;
+
+    SimplePcg32& rng() {
+        static SimplePcg32 s_rng;
+        return s_rng;
+    }
+
 }
 // end catch_context.cpp
 // start catch_debug_console.cpp
@@ -7066,7 +10241,16 @@ namespace Catch {
 }
 
 // end catch_debug_console.h
-#ifdef CATCH_PLATFORM_WINDOWS
+#if defined(CATCH_CONFIG_ANDROID_LOGWRITE)
+#include <android/log.h>
+
+    namespace Catch {
+        void writeToDebugConsole( std::string const& text ) {
+            __android_log_write( ANDROID_LOG_DEBUG, "Catch", text.c_str() );
+        }
+    }
+
+#elif defined(CATCH_PLATFORM_WINDOWS)
 
     namespace Catch {
         void writeToDebugConsole( std::string const& text ) {
@@ -7093,27 +10277,23 @@ namespace Catch {
 #  include <stdbool.h>
 #  include <sys/types.h>
 #  include <unistd.h>
-
-// ink_autoconf.h is required to use HAVE_SYS_SYSCTL_H
-#include "ink_autoconf.h"
-
-#if defined(darwin) || defined(freebsd)
-#ifdef HAVE_SYS_SYSCTL_H
-#  include <sys/sysctl.h>
-#endif
-#endif
 #  include <cstddef>
 #  include <ostream>
 
-namespace Catch {
+#ifdef __apple_build_version__
+    // These headers will only compile with AppleClang (XCode)
+    // For other compilers (Clang, GCC, ... ) we need to exclude them
+#  include <sys/sysctl.h>
+#endif
 
+    namespace Catch {
+        #ifdef __apple_build_version__
         // The following function is taken directly from the following technical note:
-        // http://developer.apple.com/library/mac/#qa/qa2004/qa1361.html
+        // https://developer.apple.com/library/archive/qa/qa1361/_index.html
 
         // Returns true if the current process is being debugged (either
         // running under the debugger or has a debugger attached post facto).
         bool isDebuggerActive(){
-
             int                 mib[4];
             struct kinfo_proc   info;
             std::size_t         size;
@@ -7143,6 +10323,12 @@ namespace Catch {
 
             return ( (info.kp_proc.p_flag & P_TRACED) != 0 );
         }
+        #else
+        bool isDebuggerActive() {
+            // We need to find another way to determine this for non-appleclang compilers on macOS
+            return false;
+        }
+        #endif
     } // namespace Catch
 
 #elif defined(CATCH_PLATFORM_LINUX)
@@ -7211,6 +10397,129 @@ namespace Catch {
     }
 }
 // end catch_decomposer.cpp
+// start catch_enforce.cpp
+
+#include <stdexcept>
+
+namespace Catch {
+#if defined(CATCH_CONFIG_DISABLE_EXCEPTIONS) && !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS_CUSTOM_HANDLER)
+    [[noreturn]]
+    void throw_exception(std::exception const& e) {
+        Catch::cerr() << "Catch will terminate because it needed to throw an exception.\n"
+                      << "The message was: " << e.what() << '\n';
+        std::terminate();
+    }
+#endif
+
+    [[noreturn]]
+    void throw_logic_error(std::string const& msg) {
+        throw_exception(std::logic_error(msg));
+    }
+
+    [[noreturn]]
+    void throw_domain_error(std::string const& msg) {
+        throw_exception(std::domain_error(msg));
+    }
+
+    [[noreturn]]
+    void throw_runtime_error(std::string const& msg) {
+        throw_exception(std::runtime_error(msg));
+    }
+
+} // namespace Catch;
+// end catch_enforce.cpp
+// start catch_enum_values_registry.cpp
+// start catch_enum_values_registry.h
+
+#include <vector>
+#include <memory>
+
+namespace Catch {
+
+    namespace Detail {
+
+        std::unique_ptr<EnumInfo> makeEnumInfo( StringRef enumName, StringRef allValueNames, std::vector<int> const& values );
+
+        class EnumValuesRegistry : public IMutableEnumValuesRegistry {
+
+            std::vector<std::unique_ptr<EnumInfo>> m_enumInfos;
+
+            EnumInfo const& registerEnum( StringRef enumName, StringRef allEnums, std::vector<int> const& values) override;
+        };
+
+        std::vector<StringRef> parseEnums( StringRef enums );
+
+    } // Detail
+
+} // Catch
+
+// end catch_enum_values_registry.h
+
+#include <map>
+#include <cassert>
+
+namespace Catch {
+
+    IMutableEnumValuesRegistry::~IMutableEnumValuesRegistry() {}
+
+    namespace Detail {
+
+        namespace {
+            // Extracts the actual name part of an enum instance
+            // In other words, it returns the Blue part of Bikeshed::Colour::Blue
+            StringRef extractInstanceName(StringRef enumInstance) {
+                // Find last occurence of ":"
+                size_t name_start = enumInstance.size();
+                while (name_start > 0 && enumInstance[name_start - 1] != ':') {
+                    --name_start;
+                }
+                return enumInstance.substr(name_start, enumInstance.size() - name_start);
+            }
+        }
+
+        std::vector<StringRef> parseEnums( StringRef enums ) {
+            auto enumValues = splitStringRef( enums, ',' );
+            std::vector<StringRef> parsed;
+            parsed.reserve( enumValues.size() );
+            for( auto const& enumValue : enumValues ) {
+                parsed.push_back(trim(extractInstanceName(enumValue)));
+            }
+            return parsed;
+        }
+
+        EnumInfo::~EnumInfo() {}
+
+        StringRef EnumInfo::lookup( int value ) const {
+            for( auto const& valueToName : m_values ) {
+                if( valueToName.first == value )
+                    return valueToName.second;
+            }
+            return "{** unexpected enum value **}"_sr;
+        }
+
+        std::unique_ptr<EnumInfo> makeEnumInfo( StringRef enumName, StringRef allValueNames, std::vector<int> const& values ) {
+            std::unique_ptr<EnumInfo> enumInfo( new EnumInfo );
+            enumInfo->m_name = enumName;
+            enumInfo->m_values.reserve( values.size() );
+
+            const auto valueNames = Catch::Detail::parseEnums( allValueNames );
+            assert( valueNames.size() == values.size() );
+            std::size_t i = 0;
+            for( auto value : values )
+                enumInfo->m_values.push_back({ value, valueNames[i++] });
+
+            return enumInfo;
+        }
+
+        EnumInfo const& EnumValuesRegistry::registerEnum( StringRef enumName, StringRef allValueNames, std::vector<int> const& values ) {
+            m_enumInfos.push_back(makeEnumInfo(enumName, allValueNames, values));
+            return *m_enumInfos.back();
+        }
+
+    } // Detail
+} // Catch
+
+// end catch_enum_values_registry.cpp
 // start catch_errno_guard.cpp
 
 #include <cerrno>
@@ -7234,7 +10543,7 @@ namespace Catch {
     public:
         ~ExceptionTranslatorRegistry();
         virtual void registerTranslator( const IExceptionTranslator* translator );
-        virtual std::string translateActiveException() const override;
+        std::string translateActiveException() const override;
         std::string tryTranslators() const;
 
     private:
@@ -7256,6 +10565,7 @@ namespace Catch {
         m_translators.push_back( std::unique_ptr<const IExceptionTranslator>( translator ) );
     }
 
+#if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
     std::string ExceptionTranslatorRegistry::translateActiveException() const {
         try {
 #ifdef __OBJC__
@@ -7299,11 +10609,23 @@ namespace Catch {
     }
 
     std::string ExceptionTranslatorRegistry::tryTranslators() const {
-        if( m_translators.empty() )
+        if (m_translators.empty()) {
             std::rethrow_exception(std::current_exception());
-        else
-            return m_translators[0]->translate( m_translators.begin()+1, m_translators.end() );
+        } else {
+            return m_translators[0]->translate(m_translators.begin() + 1, m_translators.end());
+        }
+    }
+
+#else // ^^ Exceptions are enabled // Exceptions are disabled vv
+    std::string ExceptionTranslatorRegistry::translateActiveException() const {
+        CATCH_INTERNAL_ERROR("Attempted to translate active exception under CATCH_CONFIG_DISABLE_EXCEPTIONS!");
+    }
+
+    std::string ExceptionTranslatorRegistry::tryTranslators() const {
+        CATCH_INTERNAL_ERROR("Attempted to use exception translators under CATCH_CONFIG_DISABLE_EXCEPTIONS!");
     }
+#endif
+
 }
 // end catch_exception_translator_registry.cpp
 // start catch_fatal_condition.cpp
@@ -7333,10 +10655,10 @@ namespace Catch {
     // Windows can easily distinguish between SO and SigSegV,
     // but SigInt, SigTerm, etc are handled differently.
     static SignalDefs signalDefs[] = {
-        { EXCEPTION_ILLEGAL_INSTRUCTION,  "SIGILL - Illegal instruction signal" },
-        { EXCEPTION_STACK_OVERFLOW, "SIGSEGV - Stack overflow" },
-        { EXCEPTION_ACCESS_VIOLATION, "SIGSEGV - Segmentation violation signal" },
-        { EXCEPTION_INT_DIVIDE_BY_ZERO, "Divide by zero error" },
+        { static_cast<DWORD>(EXCEPTION_ILLEGAL_INSTRUCTION),  "SIGILL - Illegal instruction signal" },
+        { static_cast<DWORD>(EXCEPTION_STACK_OVERFLOW), "SIGSEGV - Stack overflow" },
+        { static_cast<DWORD>(EXCEPTION_ACCESS_VIOLATION), "SIGSEGV - Segmentation violation signal" },
+        { static_cast<DWORD>(EXCEPTION_INT_DIVIDE_BY_ZERO), "Divide by zero error" },
     };
 
     LONG CALLBACK FatalConditionHandler::handleVectoredException(PEXCEPTION_POINTERS ExceptionInfo) {
@@ -7389,6 +10711,11 @@ namespace Catch {
         int id;
         const char* name;
     };
+
+    // 32kb for the alternate stack seems to be sufficient. However, this value
+    // is experimentally determined, so that's not guaranteed.
+    static constexpr std::size_t sigStackSize = 32768 >= MINSIGSTKSZ ? 32768 : MINSIGSTKSZ;
+
     static SignalDefs signalDefs[] = {
         { SIGINT,  "SIGINT - Terminal interrupt signal" },
         { SIGILL,  "SIGILL - Illegal instruction signal" },
@@ -7415,7 +10742,7 @@ namespace Catch {
         isSet = true;
         stack_t sigStack;
         sigStack.ss_sp = altStackMem;
-        sigStack.ss_size = SIGSTKSZ;
+        sigStack.ss_size = sigStackSize;
         sigStack.ss_flags = 0;
         sigaltstack(&sigStack, &oldSigStack);
         struct sigaction sa = { };
@@ -7446,7 +10773,7 @@ namespace Catch {
     bool FatalConditionHandler::isSet = false;
     struct sigaction FatalConditionHandler::oldSigActions[sizeof(signalDefs)/sizeof(SignalDefs)] = {};
     stack_t FatalConditionHandler::oldSigStack = {};
-    char FatalConditionHandler::altStackMem[SIGSTKSZ] = {};
+    char FatalConditionHandler::altStackMem[sigStackSize] = {};
 
 } // namespace Catch
 
@@ -7462,6 +10789,30 @@ namespace Catch {
 #    pragma GCC diagnostic pop
 #endif
 // end catch_fatal_condition.cpp
+// start catch_generators.cpp
+
+#include <limits>
+#include <set>
+
+namespace Catch {
+
+IGeneratorTracker::~IGeneratorTracker() {}
+
+const char* GeneratorException::what() const noexcept {
+    return m_msg;
+}
+
+namespace Generators {
+
+    GeneratorUntypedBase::~GeneratorUntypedBase() {}
+
+    auto acquireGeneratorTracker( SourceLineInfo const& lineInfo ) -> IGeneratorTracker& {
+        return getResultCapture().acquireGeneratorTracker( lineInfo );
+    }
+
+} // namespace Generators
+} // namespace Catch
+// end catch_generators.cpp
 // start catch_interfaces_capture.cpp
 
 namespace Catch {
@@ -7490,16 +10841,21 @@ namespace Catch {
 // end catch_interfaces_registry_hub.cpp
 // start catch_interfaces_reporter.cpp
 
-// start catch_reporter_multi.h
+// start catch_reporter_listening.h
 
 namespace Catch {
 
-    class MultipleReporters : public IStreamingReporter {
+    class ListeningReporter : public IStreamingReporter {
         using Reporters = std::vector<IStreamingReporterPtr>;
-        Reporters m_reporters;
+        Reporters m_listeners;
+        IStreamingReporterPtr m_reporter = nullptr;
+        ReporterPreferences m_preferences;
 
     public:
-        void add( IStreamingReporterPtr&& reporter );
+        ListeningReporter();
+
+        void addListener( IStreamingReporterPtr&& listener );
+        void addReporter( IStreamingReporterPtr&& reporter );
 
     public: // IStreamingReporter
 
@@ -7507,10 +10863,16 @@ namespace Catch {
 
         void noMatchingTestCases( std::string const& spec ) override;
 
+        void reportInvalidArguments(std::string const&arg) override;
+
         static std::set<Verbosity> getSupportedVerbosities();
 
+#if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
+        void benchmarkPreparing(std::string const& name) override;
         void benchmarkStarting( BenchmarkInfo const& benchmarkInfo ) override;
-        void benchmarkEnded( BenchmarkStats const& benchmarkStats ) override;
+        void benchmarkEnded( BenchmarkStats<> const& benchmarkStats ) override;
+        void benchmarkFailed(std::string const&) override;
+#endif // CATCH_CONFIG_ENABLE_BENCHMARKING
 
         void testRunStarting( TestRunInfo const& testRunInfo ) override;
         void testGroupStarting( GroupInfo const& groupInfo ) override;
@@ -7532,7 +10894,7 @@ namespace Catch {
 
 } // end namespace Catch
 
-// end catch_reporter_multi.h
+// end catch_reporter_listening.h
 namespace Catch {
 
     ReporterConfig::ReporterConfig( IConfigPtr const& _fullConfig )
@@ -7633,27 +10995,6 @@ namespace Catch {
     IReporterFactory::~IReporterFactory() = default;
     IReporterRegistry::~IReporterRegistry() = default;
 
-    void addReporter( IStreamingReporterPtr& existingReporter, IStreamingReporterPtr&& additionalReporter ) {
-
-        if( !existingReporter ) {
-            existingReporter = std::move( additionalReporter );
-            return;
-        }
-
-        MultipleReporters* multi = nullptr;
-
-        if( existingReporter->isMulti() ) {
-            multi = static_cast<MultipleReporters*>( existingReporter.get() );
-        }
-        else {
-            auto newMulti = std::unique_ptr<MultipleReporters>( new MultipleReporters );
-            newMulti->add( std::move( existingReporter ) );
-            multi = newMulti.get();
-            existingReporter = std::move( newMulti );
-        }
-        multi->add( std::move( additionalReporter ) );
-    }
-
 } // end namespace Catch
 // end catch_interfaces_reporter.cpp
 // start catch_interfaces_runner.cpp
@@ -7676,16 +11017,16 @@ namespace Catch {
 
 namespace Catch {
 
-	LeakDetector::LeakDetector() {
-		int flag = _CrtSetDbgFlag(_CRTDBG_REPORT_FLAG);
-		flag |= _CRTDBG_LEAK_CHECK_DF;
-		flag |= _CRTDBG_ALLOC_MEM_DF;
-		_CrtSetDbgFlag(flag);
-		_CrtSetReportMode(_CRT_WARN, _CRTDBG_MODE_FILE | _CRTDBG_MODE_DEBUG);
-		_CrtSetReportFile(_CRT_WARN, _CRTDBG_FILE_STDERR);
-		// Change this to leaking allocation's number to break there
-		_CrtSetBreakAlloc(-1);
-	}
+    LeakDetector::LeakDetector() {
+        int flag = _CrtSetDbgFlag(_CRTDBG_REPORT_FLAG);
+        flag |= _CRTDBG_LEAK_CHECK_DF;
+        flag |= _CRTDBG_ALLOC_MEM_DF;
+        _CrtSetDbgFlag(flag);
+        _CrtSetReportMode(_CRT_WARN, _CRTDBG_MODE_FILE | _CRTDBG_MODE_DEBUG);
+        _CrtSetReportFile(_CRT_WARN, _CRTDBG_FILE_STDERR);
+        // Change this to leaking allocation's number to break there
+        _CrtSetBreakAlloc(-1);
+    }
 }
 
 #else
@@ -7693,6 +11034,10 @@ namespace Catch {
     Catch::LeakDetector::LeakDetector() {}
 
 #endif
+
+Catch::LeakDetector::~LeakDetector() {
+    Catch::cleanUp();
+}
 // end catch_leak_detector.cpp
 // start catch_list.cpp
 
@@ -7716,9 +11061,9 @@ namespace Catch {
 
     std::size_t listTags( Config const& config );
 
-    std::size_t listReporters( Config const& /*config*/ );
+    std::size_t listReporters();
 
-    Option<std::size_t> list( Config const& config );
+    Option<std::size_t> list( std::shared_ptr<Config> const& config );
 
 } // end namespace Catch
 
@@ -7793,9 +11138,18 @@ namespace Catch {
     }
 
     std::string TagInfo::all() const {
-        std::string out;
-        for( auto const& spelling : spellings )
-            out += "[" + spelling + "]";
+        size_t size = 0;
+        for (auto const& spelling : spellings) {
+            // Add 2 for the brackes
+            size += spelling.size() + 2;
+        }
+
+        std::string out; out.reserve(size);
+        for (auto const& spelling : spellings) {
+            out += '[';
+            out += spelling;
+            out += ']';
+        }
         return out;
     }
 
@@ -7834,7 +11188,7 @@ namespace Catch {
         return tagCounts.size();
     }
 
-    std::size_t listReporters( Config const& /*config*/ ) {
+    std::size_t listReporters() {
         Catch::cout() << "Available reporters:\n";
         IReporterRegistry::FactoryMap const& factories = getRegistryHub().getReporterRegistry().getFactories();
         std::size_t maxNameLen = 0;
@@ -7856,16 +11210,17 @@ namespace Catch {
         return factories.size();
     }
 
-    Option<std::size_t> list( Config const& config ) {
+    Option<std::size_t> list( std::shared_ptr<Config> const& config ) {
         Option<std::size_t> listedCount;
-        if( config.listTests() )
-            listedCount = listedCount.valueOr(0) + listTests( config );
-        if( config.listTestNamesOnly() )
-            listedCount = listedCount.valueOr(0) + listTestsNamesOnly( config );
-        if( config.listTags() )
-            listedCount = listedCount.valueOr(0) + listTags( config );
-        if( config.listReporters() )
-            listedCount = listedCount.valueOr(0) + listReporters( config );
+        getCurrentMutableContext().setConfig( config );
+        if( config->listTests() )
+            listedCount = listedCount.valueOr(0) + listTests( *config );
+        if( config->listTestNamesOnly() )
+            listedCount = listedCount.valueOr(0) + listTestsNamesOnly( *config );
+        if( config->listTags() )
+            listedCount = listedCount.valueOr(0) + listTags( *config );
+        if( config->listReporters() )
+            listedCount = listedCount.valueOr(0) + listReporters();
         return listedCount;
     }
 
@@ -7893,82 +11248,173 @@ using Matchers::Impl::MatcherBase;
 
 } // namespace Catch
 // end catch_matchers.cpp
-// start catch_matchers_floating.cpp
-
-#include <cstdlib>
-#include <cstdint>
-#include <cstring>
-#include <stdexcept>
+// start catch_matchers_exception.cpp
 
 namespace Catch {
 namespace Matchers {
-namespace Floating {
-enum class FloatingPointKind : uint8_t {
-    Float,
-    Double
-};
+namespace Exception {
+
+bool ExceptionMessageMatcher::match(std::exception const& ex) const {
+    return ex.what() == m_message;
 }
+
+std::string ExceptionMessageMatcher::describe() const {
+    return "exception message matches \"" + m_message + "\"";
+}
+
+}
+Exception::ExceptionMessageMatcher Message(std::string const& message) {
+    return Exception::ExceptionMessageMatcher(message);
 }
+
+// namespace Exception
+} // namespace Matchers
+} // namespace Catch
+// end catch_matchers_exception.cpp
+// start catch_matchers_floating.cpp
+
+// start catch_polyfills.hpp
+
+namespace Catch {
+    bool isnan(float f);
+    bool isnan(double d);
 }
 
+// end catch_polyfills.hpp
+// start catch_to_string.hpp
+
+#include <string>
+
+namespace Catch {
+    template <typename T>
+    std::string to_string(T const& t) {
+#if defined(CATCH_CONFIG_CPP11_TO_STRING)
+        return std::to_string(t);
+#else
+        ReusableStringStream rss;
+        rss << t;
+        return rss.str();
+#endif
+    }
+} // end namespace Catch
+
+// end catch_to_string.hpp
+#include <algorithm>
+#include <cmath>
+#include <cstdlib>
+#include <cstdint>
+#include <cstring>
+#include <sstream>
+#include <type_traits>
+#include <iomanip>
+#include <limits>
+
+namespace Catch {
 namespace {
 
-template <typename T>
-struct Converter;
+    int32_t convert(float f) {
+        static_assert(sizeof(float) == sizeof(int32_t), "Important ULP matcher assumption violated");
+        int32_t i;
+        std::memcpy(&i, &f, sizeof(f));
+        return i;
+    }
+
+    int64_t convert(double d) {
+        static_assert(sizeof(double) == sizeof(int64_t), "Important ULP matcher assumption violated");
+        int64_t i;
+        std::memcpy(&i, &d, sizeof(d));
+        return i;
+    }
+
+    template <typename FP>
+    bool almostEqualUlps(FP lhs, FP rhs, uint64_t maxUlpDiff) {
+        // Comparison with NaN should always be false.
+        // This way we can rule it out before getting into the ugly details
+        if (Catch::isnan(lhs) || Catch::isnan(rhs)) {
+            return false;
+        }
+
+        auto lc = convert(lhs);
+        auto rc = convert(rhs);
+
+        if ((lc < 0) != (rc < 0)) {
+            // Potentially we can have +0 and -0
+            return lhs == rhs;
+        }
+
+        auto ulpDiff = std::abs(lc - rc);
+        return static_cast<uint64_t>(ulpDiff) <= maxUlpDiff;
+    }
+
+} //end anonymous namespace
+
+#if defined(CATCH_CONFIG_GLOBAL_NEXTAFTER)
+
+#if defined(__clang__)
+#pragma clang diagnostic push
+// The long double overload is currently unused
+#pragma clang diagnostic ignored "-Wunused-function"
+#endif
+
+    float nextafter(float x, float y) {
+        return ::nextafterf(x, y);
+    }
 
-template <>
-struct Converter<float> {
-    static_assert(sizeof(float) == sizeof(int32_t), "Important ULP matcher assumption violated");
-    Converter(float f) {
-        std::memcpy(&i, &f, sizeof(f));
+    double nextafter(double x, double y) {
+        return ::nextafter(x, y);
     }
-    int32_t i;
-};
 
-template <>
-struct Converter<double> {
-    static_assert(sizeof(double) == sizeof(int64_t), "Important ULP matcher assumption violated");
-    Converter(double d) {
-        std::memcpy(&i, &d, sizeof(d));
+    long double nextafter(long double x, long double y) {
+        return ::nextafterl(x, y);
     }
-    int64_t i;
-};
 
-template <typename T>
-auto convert(T t) -> Converter<T> {
-    return Converter<T>(t);
-}
+#if defined(__clang__)
+#pragma clang diagnostic pop
+#endif
 
-template <typename FP>
-bool almostEqualUlps(FP lhs, FP rhs, int maxUlpDiff) {
-    // Comparison with NaN should always be false.
-    // This way we can rule it out before getting into the ugly details
-    if (std::isnan(lhs) || std::isnan(rhs)) {
-        return false;
-    }
+#endif // ^^^ CATCH_CONFIG_GLOBAL_NEXTAFTER ^^^
 
-    auto lc = convert(lhs);
-    auto rc = convert(rhs);
+namespace {
 
-    if ((lc.i < 0) != (rc.i < 0)) {
-        // Potentially we can have +0 and -0
-        return lhs == rhs;
+template <typename FP>
+FP step(FP start, FP direction, uint64_t steps) {
+    for (uint64_t i = 0; i < steps; ++i) {
+#if defined(CATCH_CONFIG_GLOBAL_NEXTAFTER)
+        start = Catch::nextafter(start, direction);
+#else
+        start = std::nextafter(start, direction);
+#endif
     }
+    return start;
+}
 
-    auto ulpDiff = std::abs(lc.i - rc.i);
-    return ulpDiff <= maxUlpDiff;
+// Performs equivalent check of std::fabs(lhs - rhs) <= margin
+// But without the subtraction to allow for INFINITY in comparison
+bool marginComparison(double lhs, double rhs, double margin) {
+    return (lhs + margin >= rhs) && (rhs + margin >= lhs);
 }
 
+template <typename FloatingPoint>
+void write(std::ostream& out, FloatingPoint num) {
+    out << std::scientific
+        << std::setprecision(std::numeric_limits<FloatingPoint>::max_digits10 - 1)
+        << num;
 }
 
-namespace Catch {
+} // end anonymous namespace
+
 namespace Matchers {
 namespace Floating {
+
+    enum class FloatingPointKind : uint8_t {
+        Float,
+        Double
+    };
+
     WithinAbsMatcher::WithinAbsMatcher(double target, double margin)
         :m_target{ target }, m_margin{ margin } {
-        if (m_margin < 0) {
-            throw std::domain_error("Allowed margin difference has to be >= 0");
-        }
+        CATCH_ENFORCE(margin >= 0, "Invalid margin: " << margin << '.'
+            << " Margin has to be non-negative.");
     }
 
     // Performs equivalent check of std::fabs(lhs - rhs) <= margin
@@ -7981,13 +11427,19 @@ namespace Floating {
         return "is within " + ::Catch::Detail::stringify(m_margin) + " of " + ::Catch::Detail::stringify(m_target);
     }
 
-    WithinUlpsMatcher::WithinUlpsMatcher(double target, int ulps, FloatingPointKind baseType)
+    WithinUlpsMatcher::WithinUlpsMatcher(double target, uint64_t ulps, FloatingPointKind baseType)
         :m_target{ target }, m_ulps{ ulps }, m_type{ baseType } {
-        if (m_ulps < 0) {
-            throw std::domain_error("Allowed ulp difference has to be >= 0");
-        }
+        CATCH_ENFORCE(m_type == FloatingPointKind::Double
+                   || m_ulps < (std::numeric_limits<uint32_t>::max)(),
+            "Provided ULP is impossibly large for a float comparison.");
     }
 
+#if defined(__clang__)
+#pragma clang diagnostic push
+// Clang <3.5 reports on the default branch in the switch below
+#pragma clang diagnostic ignored "-Wunreachable-code"
+#endif
+
     bool WithinUlpsMatcher::match(double const& matchee) const {
         switch (m_type) {
         case FloatingPointKind::Float:
@@ -7995,21 +11447,68 @@ namespace Floating {
         case FloatingPointKind::Double:
             return almostEqualUlps<double>(matchee, m_target, m_ulps);
         default:
-            throw std::domain_error("Unknown FloatingPointKind value");
+            CATCH_INTERNAL_ERROR( "Unknown FloatingPointKind value" );
         }
     }
 
+#if defined(__clang__)
+#pragma clang diagnostic pop
+#endif
+
     std::string WithinUlpsMatcher::describe() const {
-        return "is within " + std::to_string(m_ulps) + " ULPs of " + ::Catch::Detail::stringify(m_target) + ((m_type == FloatingPointKind::Float)? "f" : "");
+        std::stringstream ret;
+
+        ret << "is within " << m_ulps << " ULPs of ";
+
+        if (m_type == FloatingPointKind::Float) {
+            write(ret, static_cast<float>(m_target));
+            ret << 'f';
+        } else {
+            write(ret, m_target);
+        }
+
+        ret << " ([";
+        if (m_type == FloatingPointKind::Double) {
+            write(ret, step(m_target, static_cast<double>(-INFINITY), m_ulps));
+            ret << ", ";
+            write(ret, step(m_target, static_cast<double>( INFINITY), m_ulps));
+        } else {
+            // We have to cast INFINITY to float because of MinGW, see #1782
+            write(ret, step(static_cast<float>(m_target), static_cast<float>(-INFINITY), m_ulps));
+            ret << ", ";
+            write(ret, step(static_cast<float>(m_target), static_cast<float>( INFINITY), m_ulps));
+        }
+        ret << "])";
+
+        return ret.str();
+    }
+
+    WithinRelMatcher::WithinRelMatcher(double target, double epsilon):
+        m_target(target),
+        m_epsilon(epsilon){
+        CATCH_ENFORCE(m_epsilon >= 0., "Relative comparison with epsilon <  0 does not make sense.");
+        CATCH_ENFORCE(m_epsilon  < 1., "Relative comparison with epsilon >= 1 does not make sense.");
+    }
+
+    bool WithinRelMatcher::match(double const& matchee) const {
+        const auto relMargin = m_epsilon * (std::max)(std::fabs(matchee), std::fabs(m_target));
+        return marginComparison(matchee, m_target,
+                                std::isinf(relMargin)? 0 : relMargin);
+    }
+
+    std::string WithinRelMatcher::describe() const {
+        Catch::ReusableStringStream sstr;
+        sstr << "and " << m_target << " are within " << m_epsilon * 100. << "% of each other";
+        return sstr.str();
     }
 
 }// namespace Floating
 
-Floating::WithinUlpsMatcher WithinULP(double target, int maxUlpDiff) {
+Floating::WithinUlpsMatcher WithinULP(double target, uint64_t maxUlpDiff) {
     return Floating::WithinUlpsMatcher(target, maxUlpDiff, Floating::FloatingPointKind::Double);
 }
 
-Floating::WithinUlpsMatcher WithinULP(float target, int maxUlpDiff) {
+Floating::WithinUlpsMatcher WithinULP(float target, uint64_t maxUlpDiff) {
     return Floating::WithinUlpsMatcher(target, maxUlpDiff, Floating::FloatingPointKind::Float);
 }
 
@@ -8017,6 +11516,22 @@ Floating::WithinAbsMatcher WithinAbs(double target, double margin) {
     return Floating::WithinAbsMatcher(target, margin);
 }
 
+Floating::WithinRelMatcher WithinRel(double target, double eps) {
+    return Floating::WithinRelMatcher(target, eps);
+}
+
+Floating::WithinRelMatcher WithinRel(double target) {
+    return Floating::WithinRelMatcher(target, std::numeric_limits<double>::epsilon() * 100);
+}
+
+Floating::WithinRelMatcher WithinRel(float target, float eps) {
+    return Floating::WithinRelMatcher(target, eps);
+}
+
+Floating::WithinRelMatcher WithinRel(float target) {
+    return Floating::WithinRelMatcher(target, std::numeric_limits<float>::epsilon() * 100);
+}
+
 } // namespace Matchers
 } // namespace Catch
 
@@ -8090,155 +11605,515 @@ namespace Matchers {
             return startsWith( m_comparator.adjustString( source ), m_comparator.m_str );
         }
 
-        EndsWithMatcher::EndsWithMatcher( CasedString const& comparator ) : StringMatcherBase( "ends with", comparator ) {}
+        EndsWithMatcher::EndsWithMatcher( CasedString const& comparator ) : StringMatcherBase( "ends with", comparator ) {}
+
+        bool EndsWithMatcher::match( std::string const& source ) const {
+            return endsWith( m_comparator.adjustString( source ), m_comparator.m_str );
+        }
+
+        RegexMatcher::RegexMatcher(std::string regex, CaseSensitive::Choice caseSensitivity): m_regex(std::move(regex)), m_caseSensitivity(caseSensitivity) {}
+
+        bool RegexMatcher::match(std::string const& matchee) const {
+            auto flags = std::regex::ECMAScript; // ECMAScript is the default syntax option anyway
+            if (m_caseSensitivity == CaseSensitive::Choice::No) {
+                flags |= std::regex::icase;
+            }
+            auto reg = std::regex(m_regex, flags);
+            return std::regex_match(matchee, reg);
+        }
+
+        std::string RegexMatcher::describe() const {
+            return "matches " + ::Catch::Detail::stringify(m_regex) + ((m_caseSensitivity == CaseSensitive::Choice::Yes)? " case sensitively" : " case insensitively");
+        }
+
+    } // namespace StdString
+
+    StdString::EqualsMatcher Equals( std::string const& str, CaseSensitive::Choice caseSensitivity ) {
+        return StdString::EqualsMatcher( StdString::CasedString( str, caseSensitivity) );
+    }
+    StdString::ContainsMatcher Contains( std::string const& str, CaseSensitive::Choice caseSensitivity ) {
+        return StdString::ContainsMatcher( StdString::CasedString( str, caseSensitivity) );
+    }
+    StdString::EndsWithMatcher EndsWith( std::string const& str, CaseSensitive::Choice caseSensitivity ) {
+        return StdString::EndsWithMatcher( StdString::CasedString( str, caseSensitivity) );
+    }
+    StdString::StartsWithMatcher StartsWith( std::string const& str, CaseSensitive::Choice caseSensitivity ) {
+        return StdString::StartsWithMatcher( StdString::CasedString( str, caseSensitivity) );
+    }
+
+    StdString::RegexMatcher Matches(std::string const& regex, CaseSensitive::Choice caseSensitivity) {
+        return StdString::RegexMatcher(regex, caseSensitivity);
+    }
+
+} // namespace Matchers
+} // namespace Catch
+// end catch_matchers_string.cpp
+// start catch_message.cpp
+
+// start catch_uncaught_exceptions.h
+
+namespace Catch {
+    bool uncaught_exceptions();
+} // end namespace Catch
+
+// end catch_uncaught_exceptions.h
+#include <cassert>
+#include <stack>
+
+namespace Catch {
+
+    MessageInfo::MessageInfo(   StringRef const& _macroName,
+                                SourceLineInfo const& _lineInfo,
+                                ResultWas::OfType _type )
+    :   macroName( _macroName ),
+        lineInfo( _lineInfo ),
+        type( _type ),
+        sequence( ++globalCount )
+    {}
+
+    bool MessageInfo::operator==( MessageInfo const& other ) const {
+        return sequence == other.sequence;
+    }
+
+    bool MessageInfo::operator<( MessageInfo const& other ) const {
+        return sequence < other.sequence;
+    }
+
+    // This may need protecting if threading support is added
+    unsigned int MessageInfo::globalCount = 0;
+
+    ////////////////////////////////////////////////////////////////////////////
+
+    Catch::MessageBuilder::MessageBuilder( StringRef const& macroName,
+                                           SourceLineInfo const& lineInfo,
+                                           ResultWas::OfType type )
+        :m_info(macroName, lineInfo, type) {}
+
+    ////////////////////////////////////////////////////////////////////////////
+
+    ScopedMessage::ScopedMessage( MessageBuilder const& builder )
+    : m_info( builder.m_info ), m_moved()
+    {
+        m_info.message = builder.m_stream.str();
+        getResultCapture().pushScopedMessage( m_info );
+    }
+
+    ScopedMessage::ScopedMessage( ScopedMessage&& old )
+    : m_info( old.m_info ), m_moved()
+    {
+        old.m_moved = true;
+    }
+
+    ScopedMessage::~ScopedMessage() {
+        if ( !uncaught_exceptions() && !m_moved ){
+            getResultCapture().popScopedMessage(m_info);
+        }
+    }
+
+    Capturer::Capturer( StringRef macroName, SourceLineInfo const& lineInfo, ResultWas::OfType resultType, StringRef names ) {
+        auto trimmed = [&] (size_t start, size_t end) {
+            while (names[start] == ',' || isspace(names[start])) {
+                ++start;
+            }
+            while (names[end] == ',' || isspace(names[end])) {
+                --end;
+            }
+            return names.substr(start, end - start + 1);
+        };
+        auto skipq = [&] (size_t start, char quote) {
+            for (auto i = start + 1; i < names.size() ; ++i) {
+                if (names[i] == quote)
+                    return i;
+                if (names[i] == '\\')
+                    ++i;
+            }
+            CATCH_INTERNAL_ERROR("CAPTURE parsing encountered unmatched quote");
+        };
+
+        size_t start = 0;
+        std::stack<char> openings;
+        for (size_t pos = 0; pos < names.size(); ++pos) {
+            char c = names[pos];
+            switch (c) {
+            case '[':
+            case '{':
+            case '(':
+            // It is basically impossible to disambiguate between
+            // comparison and start of template args in this context
+//            case '<':
+                openings.push(c);
+                break;
+            case ']':
+            case '}':
+            case ')':
+//           case '>':
+                openings.pop();
+                break;
+            case '"':
+            case '\'':
+                pos = skipq(pos, c);
+                break;
+            case ',':
+                if (start != pos && openings.size() == 0) {
+                    m_messages.emplace_back(macroName, lineInfo, resultType);
+                    m_messages.back().message = static_cast<std::string>(trimmed(start, pos));
+                    m_messages.back().message += " := ";
+                    start = pos;
+                }
+            }
+        }
+        assert(openings.size() == 0 && "Mismatched openings");
+        m_messages.emplace_back(macroName, lineInfo, resultType);
+        m_messages.back().message = static_cast<std::string>(trimmed(start, names.size() - 1));
+        m_messages.back().message += " := ";
+    }
+    Capturer::~Capturer() {
+        if ( !uncaught_exceptions() ){
+            assert( m_captured == m_messages.size() );
+            for( size_t i = 0; i < m_captured; ++i  )
+                m_resultCapture.popScopedMessage( m_messages[i] );
+        }
+    }
+
+    void Capturer::captureValue( size_t index, std::string const& value ) {
+        assert( index < m_messages.size() );
+        m_messages[index].message += value;
+        m_resultCapture.pushScopedMessage( m_messages[index] );
+        m_captured++;
+    }
+
+} // end namespace Catch
+// end catch_message.cpp
+// start catch_output_redirect.cpp
+
+// start catch_output_redirect.h
+#ifndef TWOBLUECUBES_CATCH_OUTPUT_REDIRECT_H
+#define TWOBLUECUBES_CATCH_OUTPUT_REDIRECT_H
+
+#include <cstdio>
+#include <iosfwd>
+#include <string>
+
+namespace Catch {
+
+    class RedirectedStream {
+        std::ostream& m_originalStream;
+        std::ostream& m_redirectionStream;
+        std::streambuf* m_prevBuf;
+
+    public:
+        RedirectedStream( std::ostream& originalStream, std::ostream& redirectionStream );
+        ~RedirectedStream();
+    };
+
+    class RedirectedStdOut {
+        ReusableStringStream m_rss;
+        RedirectedStream m_cout;
+    public:
+        RedirectedStdOut();
+        auto str() const -> std::string;
+    };
+
+    // StdErr has two constituent streams in C++, std::cerr and std::clog
+    // This means that we need to redirect 2 streams into 1 to keep proper
+    // order of writes
+    class RedirectedStdErr {
+        ReusableStringStream m_rss;
+        RedirectedStream m_cerr;
+        RedirectedStream m_clog;
+    public:
+        RedirectedStdErr();
+        auto str() const -> std::string;
+    };
+
+    class RedirectedStreams {
+    public:
+        RedirectedStreams(RedirectedStreams const&) = delete;
+        RedirectedStreams& operator=(RedirectedStreams const&) = delete;
+        RedirectedStreams(RedirectedStreams&&) = delete;
+        RedirectedStreams& operator=(RedirectedStreams&&) = delete;
+
+        RedirectedStreams(std::string& redirectedCout, std::string& redirectedCerr);
+        ~RedirectedStreams();
+    private:
+        std::string& m_redirectedCout;
+        std::string& m_redirectedCerr;
+        RedirectedStdOut m_redirectedStdOut;
+        RedirectedStdErr m_redirectedStdErr;
+    };
+
+#if defined(CATCH_CONFIG_NEW_CAPTURE)
+
+    // Windows's implementation of std::tmpfile is terrible (it tries
+    // to create a file inside system folder, thus requiring elevated
+    // privileges for the binary), so we have to use tmpnam(_s) and
+    // create the file ourselves there.
+    class TempFile {
+    public:
+        TempFile(TempFile const&) = delete;
+        TempFile& operator=(TempFile const&) = delete;
+        TempFile(TempFile&&) = delete;
+        TempFile& operator=(TempFile&&) = delete;
+
+        TempFile();
+        ~TempFile();
+
+        std::FILE* getFile();
+        std::string getContents();
+
+    private:
+        std::FILE* m_file = nullptr;
+    #if defined(_MSC_VER)
+        char m_buffer[L_tmpnam] = { 0 };
+    #endif
+    };
+
+    class OutputRedirect {
+    public:
+        OutputRedirect(OutputRedirect const&) = delete;
+        OutputRedirect& operator=(OutputRedirect const&) = delete;
+        OutputRedirect(OutputRedirect&&) = delete;
+        OutputRedirect& operator=(OutputRedirect&&) = delete;
+
+        OutputRedirect(std::string& stdout_dest, std::string& stderr_dest);
+        ~OutputRedirect();
+
+    private:
+        int m_originalStdout = -1;
+        int m_originalStderr = -1;
+        TempFile m_stdoutFile;
+        TempFile m_stderrFile;
+        std::string& m_stdoutDest;
+        std::string& m_stderrDest;
+    };
+
+#endif
+
+} // end namespace Catch
+
+#endif // TWOBLUECUBES_CATCH_OUTPUT_REDIRECT_H
+// end catch_output_redirect.h
+#include <cstdio>
+#include <cstring>
+#include <fstream>
+#include <sstream>
+#include <stdexcept>
+
+#if defined(CATCH_CONFIG_NEW_CAPTURE)
+    #if defined(_MSC_VER)
+    #include <io.h>      //_dup and _dup2
+    #define dup _dup
+    #define dup2 _dup2
+    #define fileno _fileno
+    #else
+    #include <unistd.h>  // dup and dup2
+    #endif
+#endif
+
+namespace Catch {
+
+    RedirectedStream::RedirectedStream( std::ostream& originalStream, std::ostream& redirectionStream )
+    :   m_originalStream( originalStream ),
+        m_redirectionStream( redirectionStream ),
+        m_prevBuf( m_originalStream.rdbuf() )
+    {
+        m_originalStream.rdbuf( m_redirectionStream.rdbuf() );
+    }
+
+    RedirectedStream::~RedirectedStream() {
+        m_originalStream.rdbuf( m_prevBuf );
+    }
+
+    RedirectedStdOut::RedirectedStdOut() : m_cout( Catch::cout(), m_rss.get() ) {}
+    auto RedirectedStdOut::str() const -> std::string { return m_rss.str(); }
+
+    RedirectedStdErr::RedirectedStdErr()
+    :   m_cerr( Catch::cerr(), m_rss.get() ),
+        m_clog( Catch::clog(), m_rss.get() )
+    {}
+    auto RedirectedStdErr::str() const -> std::string { return m_rss.str(); }
 
-        bool EndsWithMatcher::match( std::string const& source ) const {
-            return endsWith( m_comparator.adjustString( source ), m_comparator.m_str );
-        }
+    RedirectedStreams::RedirectedStreams(std::string& redirectedCout, std::string& redirectedCerr)
+    :   m_redirectedCout(redirectedCout),
+        m_redirectedCerr(redirectedCerr)
+    {}
 
-        RegexMatcher::RegexMatcher(std::string regex, CaseSensitive::Choice caseSensitivity): m_regex(std::move(regex)), m_caseSensitivity(caseSensitivity) {}
+    RedirectedStreams::~RedirectedStreams() {
+        m_redirectedCout += m_redirectedStdOut.str();
+        m_redirectedCerr += m_redirectedStdErr.str();
+    }
 
-        bool RegexMatcher::match(std::string const& matchee) const {
-            auto flags = std::regex::ECMAScript; // ECMAScript is the default syntax option anyway
-            if (m_caseSensitivity == CaseSensitive::Choice::No) {
-                flags |= std::regex::icase;
+#if defined(CATCH_CONFIG_NEW_CAPTURE)
+
+#if defined(_MSC_VER)
+    TempFile::TempFile() {
+        if (tmpnam_s(m_buffer)) {
+            CATCH_RUNTIME_ERROR("Could not get a temp filename");
+        }
+        if (fopen_s(&m_file, m_buffer, "w")) {
+            char buffer[100];
+            if (strerror_s(buffer, errno)) {
+                CATCH_RUNTIME_ERROR("Could not translate errno to a string");
             }
-            auto reg = std::regex(m_regex, flags);
-            return std::regex_match(matchee, reg);
+            CATCH_RUNTIME_ERROR("Could not open the temp file: '" << m_buffer << "' because: " << buffer);
         }
-
-        std::string RegexMatcher::describe() const {
-            return "matches " + ::Catch::Detail::stringify(m_regex) + ((m_caseSensitivity == CaseSensitive::Choice::Yes)? " case sensitively" : " case insensitively");
+    }
+#else
+    TempFile::TempFile() {
+        m_file = std::tmpfile();
+        if (!m_file) {
+            CATCH_RUNTIME_ERROR("Could not create a temp file.");
         }
+    }
 
-    } // namespace StdString
+#endif
 
-    StdString::EqualsMatcher Equals( std::string const& str, CaseSensitive::Choice caseSensitivity ) {
-        return StdString::EqualsMatcher( StdString::CasedString( str, caseSensitivity) );
-    }
-    StdString::ContainsMatcher Contains( std::string const& str, CaseSensitive::Choice caseSensitivity ) {
-        return StdString::ContainsMatcher( StdString::CasedString( str, caseSensitivity) );
-    }
-    StdString::EndsWithMatcher EndsWith( std::string const& str, CaseSensitive::Choice caseSensitivity ) {
-        return StdString::EndsWithMatcher( StdString::CasedString( str, caseSensitivity) );
-    }
-    StdString::StartsWithMatcher StartsWith( std::string const& str, CaseSensitive::Choice caseSensitivity ) {
-        return StdString::StartsWithMatcher( StdString::CasedString( str, caseSensitivity) );
+    TempFile::~TempFile() {
+         // TBD: What to do about errors here?
+         std::fclose(m_file);
+         // We manually create the file on Windows only, on Linux
+         // it will be autodeleted
+#if defined(_MSC_VER)
+         std::remove(m_buffer);
+#endif
     }
 
-    StdString::RegexMatcher Matches(std::string const& regex, CaseSensitive::Choice caseSensitivity) {
-        return StdString::RegexMatcher(regex, caseSensitivity);
+    FILE* TempFile::getFile() {
+        return m_file;
     }
 
-} // namespace Matchers
-} // namespace Catch
-// end catch_matchers_string.cpp
-// start catch_message.cpp
-
-// start catch_uncaught_exceptions.h
+    std::string TempFile::getContents() {
+        std::stringstream sstr;
+        char buffer[100] = {};
+        std::rewind(m_file);
+        while (std::fgets(buffer, sizeof(buffer), m_file)) {
+            sstr << buffer;
+        }
+        return sstr.str();
+    }
 
-namespace Catch {
-    bool uncaught_exceptions();
-} // end namespace Catch
+    OutputRedirect::OutputRedirect(std::string& stdout_dest, std::string& stderr_dest) :
+        m_originalStdout(dup(1)),
+        m_originalStderr(dup(2)),
+        m_stdoutDest(stdout_dest),
+        m_stderrDest(stderr_dest) {
+        dup2(fileno(m_stdoutFile.getFile()), 1);
+        dup2(fileno(m_stderrFile.getFile()), 2);
+    }
 
-// end catch_uncaught_exceptions.h
-namespace Catch {
+    OutputRedirect::~OutputRedirect() {
+        Catch::cout() << std::flush;
+        fflush(stdout);
+        // Since we support overriding these streams, we flush cerr
+        // even though std::cerr is unbuffered
+        Catch::cerr() << std::flush;
+        Catch::clog() << std::flush;
+        fflush(stderr);
 
-    MessageInfo::MessageInfo(   std::string const& _macroName,
-                                SourceLineInfo const& _lineInfo,
-                                ResultWas::OfType _type )
-    :   macroName( _macroName ),
-        lineInfo( _lineInfo ),
-        type( _type ),
-        sequence( ++globalCount )
-    {}
+        dup2(m_originalStdout, 1);
+        dup2(m_originalStderr, 2);
 
-    bool MessageInfo::operator==( MessageInfo const& other ) const {
-        return sequence == other.sequence;
+        m_stdoutDest += m_stdoutFile.getContents();
+        m_stderrDest += m_stderrFile.getContents();
     }
 
-    bool MessageInfo::operator<( MessageInfo const& other ) const {
-        return sequence < other.sequence;
-    }
+#endif // CATCH_CONFIG_NEW_CAPTURE
 
-    // This may need protecting if threading support is added
-    unsigned int MessageInfo::globalCount = 0;
+} // namespace Catch
 
-    ////////////////////////////////////////////////////////////////////////////
+#if defined(CATCH_CONFIG_NEW_CAPTURE)
... 3469 lines suppressed ...