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Posted to commits@nifi.apache.org by al...@apache.org on 2016/10/13 15:07:33 UTC
[15/18] nifi-minifi-cpp git commit: MINIFI-34 Establishing CMake
build system to provide build functionality equivalent to pre-existing
Makefile.
http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/b02af540/inc/spdlog/details/format.h
----------------------------------------------------------------------
diff --git a/inc/spdlog/details/format.h b/inc/spdlog/details/format.h
deleted file mode 100644
index 7ec3b39..0000000
--- a/inc/spdlog/details/format.h
+++ /dev/null
@@ -1,3155 +0,0 @@
-/*
-Formatting library for C++
-
-Copyright (c) 2012 - 2015, Victor Zverovich
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are met:
-
-1. Redistributions of source code must retain the above copyright notice, this
-list of conditions and the following disclaimer.
-2. Redistributions in binary form must reproduce the above copyright notice,
-this list of conditions and the following disclaimer in the documentation
-and/or other materials provided with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
-ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
-ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
-
-#ifndef FMT_FORMAT_H_
-#define FMT_FORMAT_H_
-
-#define FMT_HEADER_ONLY
-
-#include <stdint.h>
-
-#include <cassert>
-#include <cmath>
-#include <cstddef> // for std::ptrdiff_t
-#include <cstdio>
-#include <algorithm>
-#include <limits>
-#include <stdexcept>
-#include <string>
-#include <sstream>
-#include <map>
-
-#if _SECURE_SCL
-# include <iterator>
-#endif
-
-#ifdef _MSC_VER
-# include <intrin.h> // _BitScanReverse, _BitScanReverse64
-
-namespace fmt {
-namespace internal {
-# pragma intrinsic(_BitScanReverse)
-inline uint32_t clz(uint32_t x) {
- unsigned long r = 0;
- _BitScanReverse(&r, x);
- return 31 - r;
-}
-# define FMT_BUILTIN_CLZ(n) fmt::internal::clz(n)
-
-# ifdef _WIN64
-# pragma intrinsic(_BitScanReverse64)
-# endif
-
-inline uint32_t clzll(uint64_t x) {
- unsigned long r = 0;
-# ifdef _WIN64
- _BitScanReverse64(&r, x);
-# else
- // Scan the high 32 bits.
- if (_BitScanReverse(&r, static_cast<uint32_t>(x >> 32)))
- return 63 - (r + 32);
-
- // Scan the low 32 bits.
- _BitScanReverse(&r, static_cast<uint32_t>(x));
-# endif
- return 63 - r;
-}
-# define FMT_BUILTIN_CLZLL(n) fmt::internal::clzll(n)
-}
-}
-#endif
-
-#ifdef __GNUC__
-# define FMT_GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__)
-# define FMT_GCC_EXTENSION __extension__
-# if FMT_GCC_VERSION >= 406
-# pragma GCC diagnostic push
-// Disable the warning about "long long" which is sometimes reported even
-// when using __extension__.
-# pragma GCC diagnostic ignored "-Wlong-long"
-// Disable the warning about declaration shadowing because it affects too
-// many valid cases.
-# pragma GCC diagnostic ignored "-Wshadow"
-# endif
-# if __cplusplus >= 201103L || defined __GXX_EXPERIMENTAL_CXX0X__
-# define FMT_HAS_GXX_CXX11 1
-# endif
-#else
-# define FMT_GCC_EXTENSION
-#endif
-
-#ifdef __clang__
-# pragma clang diagnostic push
-# pragma clang diagnostic ignored "-Wdocumentation"
-#endif
-
-#ifdef __GNUC_LIBSTD__
-# define FMT_GNUC_LIBSTD_VERSION (__GNUC_LIBSTD__ * 100 + __GNUC_LIBSTD_MINOR__)
-#endif
-
-#ifdef __has_feature
-# define FMT_HAS_FEATURE(x) __has_feature(x)
-#else
-# define FMT_HAS_FEATURE(x) 0
-#endif
-
-#ifdef __has_builtin
-# define FMT_HAS_BUILTIN(x) __has_builtin(x)
-#else
-# define FMT_HAS_BUILTIN(x) 0
-#endif
-
-#ifdef __has_cpp_attribute
-# define FMT_HAS_CPP_ATTRIBUTE(x) __has_cpp_attribute(x)
-#else
-# define FMT_HAS_CPP_ATTRIBUTE(x) 0
-#endif
-
-#ifndef FMT_USE_VARIADIC_TEMPLATES
-// Variadic templates are available in GCC since version 4.4
-// (http://gcc.gnu.org/projects/cxx0x.html) and in Visual C++
-// since version 2013.
-# define FMT_USE_VARIADIC_TEMPLATES \
- (FMT_HAS_FEATURE(cxx_variadic_templates) || \
- (FMT_GCC_VERSION >= 404 && FMT_HAS_GXX_CXX11) || _MSC_VER >= 1800)
-#endif
-
-#ifndef FMT_USE_RVALUE_REFERENCES
-// Don't use rvalue references when compiling with clang and an old libstdc++
-// as the latter doesn't provide std::move.
-# if defined(FMT_GNUC_LIBSTD_VERSION) && FMT_GNUC_LIBSTD_VERSION <= 402
-# define FMT_USE_RVALUE_REFERENCES 0
-# else
-# define FMT_USE_RVALUE_REFERENCES \
- (FMT_HAS_FEATURE(cxx_rvalue_references) || \
- (FMT_GCC_VERSION >= 403 && FMT_HAS_GXX_CXX11) || _MSC_VER >= 1600)
-# endif
-#endif
-
-#if FMT_USE_RVALUE_REFERENCES
-# include <utility> // for std::move
-#endif
-
-// Define FMT_USE_NOEXCEPT to make C++ Format use noexcept (C++11 feature).
-#ifndef FMT_NOEXCEPT
-# if FMT_USE_NOEXCEPT || FMT_HAS_FEATURE(cxx_noexcept) || \
- (FMT_GCC_VERSION >= 408 && FMT_HAS_GXX_CXX11)
-# define FMT_NOEXCEPT noexcept
-# else
-# define FMT_NOEXCEPT throw()
-# endif
-#endif
-
-// A macro to disallow the copy constructor and operator= functions
-// This should be used in the private: declarations for a class
-#if FMT_USE_DELETED_FUNCTIONS || FMT_HAS_FEATURE(cxx_deleted_functions) || \
- (FMT_GCC_VERSION >= 404 && FMT_HAS_GXX_CXX11) || _MSC_VER >= 1800
-# define FMT_DELETED_OR_UNDEFINED = delete
-# define FMT_DISALLOW_COPY_AND_ASSIGN(TypeName) \
- TypeName(const TypeName&) = delete; \
- TypeName& operator=(const TypeName&) = delete
-#else
-# define FMT_DELETED_OR_UNDEFINED
-# define FMT_DISALLOW_COPY_AND_ASSIGN(TypeName) \
- TypeName(const TypeName&); \
- TypeName& operator=(const TypeName&)
-#endif
-
-#ifndef FMT_ASSERT
-# define FMT_ASSERT(condition, message) assert((condition) && message)
-#endif
-
-namespace fmt {
-
-// Fix the warning about long long on older versions of GCC
-// that don't support the diagnostic pragma.
-FMT_GCC_EXTENSION typedef long long LongLong;
-FMT_GCC_EXTENSION typedef unsigned long long ULongLong;
-
-#if FMT_USE_RVALUE_REFERENCES
-using std::move;
-#endif
-
-template <typename Char>
-class BasicWriter;
-
-typedef BasicWriter<char> Writer;
-typedef BasicWriter<wchar_t> WWriter;
-
-template <typename Char>
-class BasicFormatter;
-
-template <typename Char, typename T>
-void format(BasicFormatter<Char> &f, const Char *&format_str, const T &value);
-
-/**
-\rst
-A string reference. It can be constructed from a C string or ``std::string``.
-
-You can use one of the following typedefs for common character types:
-
-+------------+-------------------------+
-| Type | Definition |
-+============+=========================+
-| StringRef | BasicStringRef<char> |
-+------------+-------------------------+
-| WStringRef | BasicStringRef<wchar_t> |
-+------------+-------------------------+
-
-This class is most useful as a parameter type to allow passing
-different types of strings to a function, for example::
-
-template <typename... Args>
-std::string format(StringRef format_str, const Args & ... args);
-
-format("{}", 42);
-format(std::string("{}"), 42);
-\endrst
-*/
-template <typename Char>
-class BasicStringRef {
-private:
- const Char *data_;
- std::size_t size_;
-
-public:
- /** Constructs a string reference object from a C string and a size. */
- BasicStringRef(const Char *s, std::size_t size) : data_(s), size_(size) {}
-
- /**
- \rst
- Constructs a string reference object from a C string computing
- the size with ``std::char_traits<Char>::length``.
- \endrst
- */
- BasicStringRef(const Char *s)
- : data_(s), size_(std::char_traits<Char>::length(s)) {}
-
- /**
- \rst
- Constructs a string reference from an ``std::string`` object.
- \endrst
- */
- BasicStringRef(const std::basic_string<Char> &s)
- : data_(s.c_str()), size_(s.size()) {}
-
- /**
- \rst
- Converts a string reference to an ``std::string`` object.
- \endrst
- */
- std::basic_string<Char> to_string() const {
- return std::basic_string<Char>(data_, size_);
- }
-
- /** Returns the pointer to a C string. */
- const Char *data() const {
- return data_;
- }
-
- /** Returns the string size. */
- std::size_t size() const {
- return size_;
- }
-
- friend bool operator==(BasicStringRef lhs, BasicStringRef rhs) {
- return lhs.data_ == rhs.data_;
- }
- friend bool operator!=(BasicStringRef lhs, BasicStringRef rhs) {
- return lhs.data_ != rhs.data_;
- }
- friend bool operator<(BasicStringRef lhs, BasicStringRef rhs) {
- return std::lexicographical_compare(
- lhs.data_, lhs.data_ + lhs.size_, rhs.data_, rhs.data_ + rhs.size_);
- }
-};
-
-typedef BasicStringRef<char> StringRef;
-typedef BasicStringRef<wchar_t> WStringRef;
-
-
-/**
-\rst
-A reference to a null terminated string. It can be constructed from a C
-string or ``std::string``.
-
-You can use one of the following typedefs for common character types:
-
-+-------------+--------------------------+
-| Type | Definition |
-+=============+==========================+
-| CStringRef | BasicCStringRef<char> |
-+-------------+--------------------------+
-| WCStringRef | BasicCStringRef<wchar_t> |
-+-------------+--------------------------+
-
-This class is most useful as a parameter type to allow passing
-different types of strings to a function, for example::
-
-template <typename... Args>
-std::string format(CStringRef format_str, const Args & ... args);
-
-format("{}", 42);
-format(std::string("{}"), 42);
-\endrst
-*/
-template <typename Char>
-class BasicCStringRef {
-private:
- const Char *data_;
-
-public:
- /** Constructs a string reference object from a C string. */
- BasicCStringRef(const Char *s) : data_(s) {}
-
- /**
- \rst
- Constructs a string reference from an ``std::string`` object.
- \endrst
- */
- BasicCStringRef(const std::basic_string<Char> &s) : data_(s.c_str()) {}
-
- /** Returns the pointer to a C string. */
- const Char *c_str() const {
- return data_;
- }
-};
-
-typedef BasicCStringRef<char> CStringRef;
-typedef BasicCStringRef<wchar_t> WCStringRef;
-
-/**
-A formatting error such as invalid format string.
-*/
-class FormatError : public std::runtime_error {
-public:
- explicit FormatError(CStringRef message)
- : std::runtime_error(message.c_str()) {}
-};
-
-namespace internal {
-// The number of characters to store in the MemoryBuffer object itself
-// to avoid dynamic memory allocation.
-enum { INLINE_BUFFER_SIZE = 500 };
-
-#if _SECURE_SCL
-// Use checked iterator to avoid warnings on MSVC.
-template <typename T>
-inline stdext::checked_array_iterator<T*> make_ptr(T *ptr, std::size_t size) {
- return stdext::checked_array_iterator<T*>(ptr, size);
-}
-#else
-template <typename T>
-inline T *make_ptr(T *ptr, std::size_t) {
- return ptr;
-}
-#endif
-} // namespace internal
-
-/**
-\rst
-A buffer supporting a subset of ``std::vector``'s operations.
-\endrst
-*/
-template <typename T>
-class Buffer {
-private:
- FMT_DISALLOW_COPY_AND_ASSIGN(Buffer);
-
-protected:
- T *ptr_;
- std::size_t size_;
- std::size_t capacity_;
-
- Buffer(T *ptr = 0, std::size_t capacity = 0)
- : ptr_(ptr), size_(0), capacity_(capacity) {}
-
- /**
- \rst
- Increases the buffer capacity to hold at least *size* elements updating
- ``ptr_`` and ``capacity_``.
- \endrst
- */
- virtual void grow(std::size_t size) = 0;
-
-public:
- virtual ~Buffer() {}
-
- /** Returns the size of this buffer. */
- std::size_t size() const {
- return size_;
- }
-
- /** Returns the capacity of this buffer. */
- std::size_t capacity() const {
- return capacity_;
- }
-
- /**
- Resizes the buffer. If T is a POD type new elements may not be initialized.
- */
- void resize(std::size_t new_size) {
- if (new_size > capacity_)
- grow(new_size);
- size_ = new_size;
- }
-
- /**
- \rst
- Reserves space to store at least *capacity* elements.
- \endrst
- */
- void reserve(std::size_t capacity) {
- if (capacity > capacity_)
- grow(capacity);
- }
-
- void clear() FMT_NOEXCEPT{ size_ = 0; }
-
- void push_back(const T &value) {
- if (size_ == capacity_)
- grow(size_ + 1);
- ptr_[size_++] = value;
- }
-
- /** Appends data to the end of the buffer. */
- template <typename U>
- void append(const U *begin, const U *end);
-
- T &operator[](std::size_t index) {
- return ptr_[index];
- }
- const T &operator[](std::size_t index) const {
- return ptr_[index];
- }
-};
-
-template <typename T>
-template <typename U>
-void Buffer<T>::append(const U *begin, const U *end) {
- std::ptrdiff_t num_elements = end - begin;
- if (size_ + num_elements > capacity_)
- grow(size_ + num_elements);
- std::copy(begin, end, internal::make_ptr(ptr_, capacity_) + size_);
- size_ += num_elements;
-}
-
-namespace internal {
-
-// A memory buffer for POD types with the first SIZE elements stored in
-// the object itself.
-template <typename T, std::size_t SIZE, typename Allocator = std::allocator<T> >
-class MemoryBuffer : private Allocator, public Buffer<T> {
-private:
- T data_[SIZE];
-
- // Free memory allocated by the buffer.
- void free() {
- if (this->ptr_ != data_) this->deallocate(this->ptr_, this->capacity_);
- }
-
-protected:
- void grow(std::size_t size);
-
-public:
- explicit MemoryBuffer(const Allocator &alloc = Allocator())
- : Allocator(alloc), Buffer<T>(data_, SIZE) {}
- ~MemoryBuffer() {
- free();
- }
-
-#if FMT_USE_RVALUE_REFERENCES
-private:
- // Move data from other to this buffer.
- void move(MemoryBuffer &other) {
- Allocator &this_alloc = *this, &other_alloc = other;
- this_alloc = std::move(other_alloc);
- this->size_ = other.size_;
- this->capacity_ = other.capacity_;
- if (other.ptr_ == other.data_) {
- this->ptr_ = data_;
- std::copy(other.data_,
- other.data_ + this->size_, make_ptr(data_, this->capacity_));
- }
- else {
- this->ptr_ = other.ptr_;
- // Set pointer to the inline array so that delete is not called
- // when freeing.
- other.ptr_ = other.data_;
- }
- }
-
-public:
- MemoryBuffer(MemoryBuffer &&other) {
- move(other);
- }
-
- MemoryBuffer &operator=(MemoryBuffer &&other) {
- assert(this != &other);
- free();
- move(other);
- return *this;
- }
-#endif
-
- // Returns a copy of the allocator associated with this buffer.
- Allocator get_allocator() const {
- return *this;
- }
-};
-
-template <typename T, std::size_t SIZE, typename Allocator>
-void MemoryBuffer<T, SIZE, Allocator>::grow(std::size_t size) {
- std::size_t new_capacity =
- (std::max)(size, this->capacity_ + this->capacity_ / 2);
- T *new_ptr = this->allocate(new_capacity);
- // The following code doesn't throw, so the raw pointer above doesn't leak.
- std::copy(this->ptr_,
- this->ptr_ + this->size_, make_ptr(new_ptr, new_capacity));
- std::size_t old_capacity = this->capacity_;
- T *old_ptr = this->ptr_;
- this->capacity_ = new_capacity;
- this->ptr_ = new_ptr;
- // deallocate may throw (at least in principle), but it doesn't matter since
- // the buffer already uses the new storage and will deallocate it in case
- // of exception.
- if (old_ptr != data_)
- this->deallocate(old_ptr, old_capacity);
-}
-
-// A fixed-size buffer.
-template <typename Char>
-class FixedBuffer : public fmt::Buffer<Char> {
-public:
- FixedBuffer(Char *array, std::size_t size) : fmt::Buffer<Char>(array, size) {}
-
-protected:
- void grow(std::size_t size);
-};
-
-#ifndef _MSC_VER
-// Portable version of signbit.
-inline int getsign(double x) {
- // When compiled in C++11 mode signbit is no longer a macro but a function
- // defined in namespace std and the macro is undefined.
-# ifdef signbit
- return signbit(x);
-# else
- return std::signbit(x);
-# endif
-}
-
-// Portable version of isinf.
-# ifdef isinf
-inline int isinfinity(double x) {
- return isinf(x);
-}
-inline int isinfinity(long double x) {
- return isinf(x);
-}
-# else
-inline int isinfinity(double x) {
- return std::isinf(x);
-}
-inline int isinfinity(long double x) {
- return std::isinf(x);
-}
-# endif
-#else
-inline int getsign(double value) {
- if (value < 0) return 1;
- if (value == value) return 0;
- int dec = 0, sign = 0;
- char buffer[2]; // The buffer size must be >= 2 or _ecvt_s will fail.
- _ecvt_s(buffer, sizeof(buffer), value, 0, &dec, &sign);
- return sign;
-}
-inline int isinfinity(double x) {
- return !_finite(x);
-}
-inline int isinfinity(long double x) {
- return !_finite(static_cast<double>(x));
-}
-#endif
-
-template <typename Char>
-class BasicCharTraits {
-public:
-#if _SECURE_SCL
- typedef stdext::checked_array_iterator<Char*> CharPtr;
-#else
- typedef Char *CharPtr;
-#endif
- static Char cast(wchar_t value) {
- return static_cast<Char>(value);
- }
-};
-
-template <typename Char>
-class CharTraits;
-
-template <>
-class CharTraits<char> : public BasicCharTraits<char> {
-private:
- // Conversion from wchar_t to char is not allowed.
- static char convert(wchar_t);
-
-public:
- static char convert(char value) {
- return value;
- }
-
- // Formats a floating-point number.
- template <typename T>
- static int format_float(char *buffer, std::size_t size,
- const char *format, unsigned width, int precision, T value);
-};
-
-template <>
-class CharTraits<wchar_t> : public BasicCharTraits<wchar_t> {
-public:
- static wchar_t convert(char value) {
- return value;
- }
- static wchar_t convert(wchar_t value) {
- return value;
- }
-
- template <typename T>
- static int format_float(wchar_t *buffer, std::size_t size,
- const wchar_t *format, unsigned width, int precision, T value);
-};
-
-// Checks if a number is negative - used to avoid warnings.
-template <bool IsSigned>
-struct SignChecker {
- template <typename T>
- static bool is_negative(T value) {
- return value < 0;
- }
-};
-
-template <>
-struct SignChecker<false> {
- template <typename T>
- static bool is_negative(T) {
- return false;
- }
-};
-
-// Returns true if value is negative, false otherwise.
-// Same as (value < 0) but doesn't produce warnings if T is an unsigned type.
-template <typename T>
-inline bool is_negative(T value) {
- return SignChecker<std::numeric_limits<T>::is_signed>::is_negative(value);
-}
-
-// Selects uint32_t if FitsIn32Bits is true, uint64_t otherwise.
-template <bool FitsIn32Bits>
-struct TypeSelector {
- typedef uint32_t Type;
-};
-
-template <>
-struct TypeSelector<false> {
- typedef uint64_t Type;
-};
-
-template <typename T>
-struct IntTraits {
- // Smallest of uint32_t and uint64_t that is large enough to represent
- // all values of T.
- typedef typename
- TypeSelector<std::numeric_limits<T>::digits <= 32>::Type MainType;
-};
-
-// MakeUnsigned<T>::Type gives an unsigned type corresponding to integer type T.
-template <typename T>
-struct MakeUnsigned {
- typedef T Type;
-};
-
-#define FMT_SPECIALIZE_MAKE_UNSIGNED(T, U) \
- template <> \
- struct MakeUnsigned<T> { typedef U Type; }
-
-FMT_SPECIALIZE_MAKE_UNSIGNED(char, unsigned char);
-FMT_SPECIALIZE_MAKE_UNSIGNED(signed char, unsigned char);
-FMT_SPECIALIZE_MAKE_UNSIGNED(short, unsigned short);
-FMT_SPECIALIZE_MAKE_UNSIGNED(int, unsigned);
-FMT_SPECIALIZE_MAKE_UNSIGNED(long, unsigned long);
-FMT_SPECIALIZE_MAKE_UNSIGNED(LongLong, ULongLong);
-
-void report_unknown_type(char code, const char *type);
-
-// Static data is placed in this class template to allow header-only
-// configuration.
-template <typename T = void>
-struct BasicData {
- static const uint32_t POWERS_OF_10_32[];
- static const uint64_t POWERS_OF_10_64[];
- static const char DIGITS[];
-};
-
-typedef BasicData<> Data;
-
-#if FMT_GCC_VERSION >= 400 || FMT_HAS_BUILTIN(__builtin_clz)
-# define FMT_BUILTIN_CLZ(n) __builtin_clz(n)
-#endif
-
-#if FMT_GCC_VERSION >= 400 || FMT_HAS_BUILTIN(__builtin_clzll)
-# define FMT_BUILTIN_CLZLL(n) __builtin_clzll(n)
-#endif
-
-#ifdef FMT_BUILTIN_CLZLL
-// Returns the number of decimal digits in n. Leading zeros are not counted
-// except for n == 0 in which case count_digits returns 1.
-inline unsigned count_digits(uint64_t n) {
- // Based on http://graphics.stanford.edu/~seander/bithacks.html#IntegerLog10
- // and the benchmark https://github.com/localvoid/cxx-benchmark-count-digits.
- unsigned t = (64 - FMT_BUILTIN_CLZLL(n | 1)) * 1233 >> 12;
- return t - (n < Data::POWERS_OF_10_64[t]) + 1;
-}
-#else
-// Fallback version of count_digits used when __builtin_clz is not available.
-inline unsigned count_digits(uint64_t n) {
- unsigned count = 1;
- for (;;) {
- // Integer division is slow so do it for a group of four digits instead
- // of for every digit. The idea comes from the talk by Alexandrescu
- // "Three Optimization Tips for C++". See speed-test for a comparison.
- if (n < 10) return count;
- if (n < 100) return count + 1;
- if (n < 1000) return count + 2;
- if (n < 10000) return count + 3;
- n /= 10000u;
- count += 4;
- }
-}
-#endif
-
-#ifdef FMT_BUILTIN_CLZ
-// Optional version of count_digits for better performance on 32-bit platforms.
-inline unsigned count_digits(uint32_t n) {
- uint32_t t = (32 - FMT_BUILTIN_CLZ(n | 1)) * 1233 >> 12;
- return t - (n < Data::POWERS_OF_10_32[t]) + 1;
-}
-#endif
-
-// Formats a decimal unsigned integer value writing into buffer.
-template <typename UInt, typename Char>
-inline void format_decimal(Char *buffer, UInt value, unsigned num_digits) {
- --num_digits;
- while (value >= 100) {
- // Integer division is slow so do it for a group of two digits instead
- // of for every digit. The idea comes from the talk by Alexandrescu
- // "Three Optimization Tips for C++". See speed-test for a comparison.
- unsigned index = (value % 100) * 2;
- value /= 100;
- buffer[num_digits] = Data::DIGITS[index + 1];
- buffer[num_digits - 1] = Data::DIGITS[index];
- num_digits -= 2;
- }
- if (value < 10) {
- *buffer = static_cast<char>('0' + value);
- return;
- }
- unsigned index = static_cast<unsigned>(value * 2);
- buffer[1] = Data::DIGITS[index + 1];
- buffer[0] = Data::DIGITS[index];
-}
-
-#ifndef _WIN32
-# define FMT_USE_WINDOWS_H 0
-#elif !defined(FMT_USE_WINDOWS_H)
-# define FMT_USE_WINDOWS_H 1
-#endif
-
-// Define FMT_USE_WINDOWS_H to 0 to disable use of windows.h.
-// All the functionality that relies on it will be disabled too.
-#if FMT_USE_WINDOWS_H
-// A converter from UTF-8 to UTF-16.
-// It is only provided for Windows since other systems support UTF-8 natively.
-class UTF8ToUTF16 {
-private:
- MemoryBuffer<wchar_t, INLINE_BUFFER_SIZE> buffer_;
-
-public:
- explicit UTF8ToUTF16(StringRef s);
- operator WStringRef() const {
- return WStringRef(&buffer_[0], size());
- }
- size_t size() const {
- return buffer_.size() - 1;
- }
- const wchar_t *c_str() const {
- return &buffer_[0];
- }
- std::wstring str() const {
- return std::wstring(&buffer_[0], size());
- }
-};
-
-// A converter from UTF-16 to UTF-8.
-// It is only provided for Windows since other systems support UTF-8 natively.
-class UTF16ToUTF8 {
-private:
- MemoryBuffer<char, INLINE_BUFFER_SIZE> buffer_;
-
-public:
- UTF16ToUTF8() {}
- explicit UTF16ToUTF8(WStringRef s);
- operator StringRef() const {
- return StringRef(&buffer_[0], size());
- }
- size_t size() const {
- return buffer_.size() - 1;
- }
- const char *c_str() const {
- return &buffer_[0];
- }
- std::string str() const {
- return std::string(&buffer_[0], size());
- }
-
- // Performs conversion returning a system error code instead of
- // throwing exception on conversion error. This method may still throw
- // in case of memory allocation error.
- int convert(WStringRef s);
-};
-
-void format_windows_error(fmt::Writer &out, int error_code,
- fmt::StringRef message) FMT_NOEXCEPT;
-#endif
-
-void format_system_error(fmt::Writer &out, int error_code,
- fmt::StringRef message) FMT_NOEXCEPT;
-
-// A formatting argument value.
-struct Value {
- template <typename Char>
- struct StringValue {
- const Char *value;
- std::size_t size;
- };
-
- typedef void(*FormatFunc)(
- void *formatter, const void *arg, void *format_str_ptr);
-
- struct CustomValue {
- const void *value;
- FormatFunc format;
- };
-
- union {
- int int_value;
- unsigned uint_value;
- LongLong long_long_value;
- ULongLong ulong_long_value;
- double double_value;
- long double long_double_value;
- const void *pointer;
- StringValue<char> string;
- StringValue<signed char> sstring;
- StringValue<unsigned char> ustring;
- StringValue<wchar_t> wstring;
- CustomValue custom;
- };
-
- enum Type {
- NONE, NAMED_ARG,
- // Integer types should go first,
- INT, UINT, LONG_LONG, ULONG_LONG, BOOL, CHAR, LAST_INTEGER_TYPE = CHAR,
- // followed by floating-point types.
- DOUBLE, LONG_DOUBLE, LAST_NUMERIC_TYPE = LONG_DOUBLE,
- CSTRING, STRING, WSTRING, POINTER, CUSTOM
- };
-};
-
-// A formatting argument. It is a POD type to allow storage in
-// internal::MemoryBuffer.
-struct Arg : Value {
- Type type;
-};
-
-template <typename Char>
-struct NamedArg;
-
-template <typename T = void>
-struct Null {};
-
-// A helper class template to enable or disable overloads taking wide
-// characters and strings in MakeValue.
-template <typename T, typename Char>
-struct WCharHelper {
- typedef Null<T> Supported;
- typedef T Unsupported;
-};
-
-template <typename T>
-struct WCharHelper<T, wchar_t> {
- typedef T Supported;
- typedef Null<T> Unsupported;
-};
-
-template <typename T>
-class IsConvertibleToInt {
-private:
- typedef char yes[1];
- typedef char no[2];
-
- static const T &get();
-
- static yes &check(fmt::ULongLong);
- static no &check(...);
-
-public:
- enum { value = (sizeof(check(get())) == sizeof(yes)) };
-};
-
-#define FMT_CONVERTIBLE_TO_INT(Type) \
- template <> \
- class IsConvertibleToInt<Type> { \
- public: \
- enum { value = 1 }; \
- }
-
-// Silence warnings about convering float to int.
-FMT_CONVERTIBLE_TO_INT(float);
-FMT_CONVERTIBLE_TO_INT(double);
-FMT_CONVERTIBLE_TO_INT(long double);
-
-template<bool B, class T = void>
-struct EnableIf {};
-
-template<class T>
-struct EnableIf<true, T> {
- typedef T type;
-};
-
-template<bool B, class T, class F>
-struct Conditional {
- typedef T type;
-};
-
-template<class T, class F>
-struct Conditional<false, T, F> {
- typedef F type;
-};
-
-// A helper function to suppress bogus "conditional expression is constant"
-// warnings.
-inline bool check(bool value) {
- return value;
-}
-
-// Makes an Arg object from any type.
-template <typename Char>
-class MakeValue : public Arg {
-private:
- // The following two methods are private to disallow formatting of
- // arbitrary pointers. If you want to output a pointer cast it to
- // "void *" or "const void *". In particular, this forbids formatting
- // of "[const] volatile char *" which is printed as bool by iostreams.
- // Do not implement!
- template <typename T>
- MakeValue(const T *value);
- template <typename T>
- MakeValue(T *value);
-
- // The following methods are private to disallow formatting of wide
- // characters and strings into narrow strings as in
- // fmt::format("{}", L"test");
- // To fix this, use a wide format string: fmt::format(L"{}", L"test").
- MakeValue(typename WCharHelper<wchar_t, Char>::Unsupported);
- MakeValue(typename WCharHelper<wchar_t *, Char>::Unsupported);
- MakeValue(typename WCharHelper<const wchar_t *, Char>::Unsupported);
- MakeValue(typename WCharHelper<const std::wstring &, Char>::Unsupported);
- MakeValue(typename WCharHelper<WStringRef, Char>::Unsupported);
-
- void set_string(StringRef str) {
- string.value = str.data();
- string.size = str.size();
- }
-
- void set_string(WStringRef str) {
- wstring.value = str.data();
- wstring.size = str.size();
- }
-
- // Formats an argument of a custom type, such as a user-defined class.
- template <typename T>
- static void format_custom_arg(
- void *formatter, const void *arg, void *format_str_ptr) {
- format(*static_cast<BasicFormatter<Char>*>(formatter),
- *static_cast<const Char**>(format_str_ptr),
- *static_cast<const T*>(arg));
- }
-
-public:
- MakeValue() {}
-
-#define FMT_MAKE_VALUE_(Type, field, TYPE, rhs) \
- MakeValue(Type value) { field = rhs; } \
- static uint64_t type(Type) { return Arg::TYPE; }
-
-#define FMT_MAKE_VALUE(Type, field, TYPE) \
- FMT_MAKE_VALUE_(Type, field, TYPE, value)
-
- FMT_MAKE_VALUE(bool, int_value, BOOL)
- FMT_MAKE_VALUE(short, int_value, INT)
- FMT_MAKE_VALUE(unsigned short, uint_value, UINT)
- FMT_MAKE_VALUE(int, int_value, INT)
- FMT_MAKE_VALUE(unsigned, uint_value, UINT)
-
- MakeValue(long value) {
- // To minimize the number of types we need to deal with, long is
- // translated either to int or to long long depending on its size.
- if (check(sizeof(long) == sizeof(int)))
- int_value = static_cast<int>(value);
- else
- long_long_value = value;
- }
- static uint64_t type(long) {
- return sizeof(long) == sizeof(int) ? Arg::INT : Arg::LONG_LONG;
- }
-
- MakeValue(unsigned long value) {
- if (check(sizeof(unsigned long) == sizeof(unsigned)))
- uint_value = static_cast<unsigned>(value);
- else
- ulong_long_value = value;
- }
- static uint64_t type(unsigned long) {
- return sizeof(unsigned long) == sizeof(unsigned) ?
- Arg::UINT : Arg::ULONG_LONG;
- }
-
- FMT_MAKE_VALUE(LongLong, long_long_value, LONG_LONG)
- FMT_MAKE_VALUE(ULongLong, ulong_long_value, ULONG_LONG)
- FMT_MAKE_VALUE(float, double_value, DOUBLE)
- FMT_MAKE_VALUE(double, double_value, DOUBLE)
- FMT_MAKE_VALUE(long double, long_double_value, LONG_DOUBLE)
- FMT_MAKE_VALUE(signed char, int_value, CHAR)
- FMT_MAKE_VALUE(unsigned char, int_value, CHAR)
- FMT_MAKE_VALUE(char, int_value, CHAR)
-
- MakeValue(typename WCharHelper<wchar_t, Char>::Supported value) {
- int_value = value;
- }
- static uint64_t type(wchar_t) {
- return Arg::CHAR;
- }
-
-#define FMT_MAKE_STR_VALUE(Type, TYPE) \
- MakeValue(Type value) { set_string(value); } \
- static uint64_t type(Type) { return Arg::TYPE; }
-
- FMT_MAKE_VALUE(char *, string.value, CSTRING)
- FMT_MAKE_VALUE(const char *, string.value, CSTRING)
- FMT_MAKE_VALUE(const signed char *, sstring.value, CSTRING)
- FMT_MAKE_VALUE(const unsigned char *, ustring.value, CSTRING)
- FMT_MAKE_STR_VALUE(const std::string &, STRING)
- FMT_MAKE_STR_VALUE(StringRef, STRING)
- FMT_MAKE_VALUE_(CStringRef, string.value, CSTRING, value.c_str())
-
-#define FMT_MAKE_WSTR_VALUE(Type, TYPE) \
- MakeValue(typename WCharHelper<Type, Char>::Supported value) { \
- set_string(value); \
- } \
- static uint64_t type(Type) { return Arg::TYPE; }
-
- FMT_MAKE_WSTR_VALUE(wchar_t *, WSTRING)
- FMT_MAKE_WSTR_VALUE(const wchar_t *, WSTRING)
- FMT_MAKE_WSTR_VALUE(const std::wstring &, WSTRING)
- FMT_MAKE_WSTR_VALUE(WStringRef, WSTRING)
-
- FMT_MAKE_VALUE(void *, pointer, POINTER)
- FMT_MAKE_VALUE(const void *, pointer, POINTER)
-
- template <typename T>
- MakeValue(const T &value,
- typename EnableIf<!IsConvertibleToInt<T>::value, int>::type = 0) {
- custom.value = &value;
- custom.format = &format_custom_arg<T>;
- }
-
- template <typename T>
- MakeValue(const T &value,
- typename EnableIf<IsConvertibleToInt<T>::value, int>::type = 0) {
- int_value = value;
- }
-
- template <typename T>
- static uint64_t type(const T &) {
- return IsConvertibleToInt<T>::value ? Arg::INT : Arg::CUSTOM;
- }
-
- // Additional template param `Char_` is needed here because make_type always
- // uses MakeValue<char>.
- template <typename Char_>
- MakeValue(const NamedArg<Char_> &value) {
- pointer = &value;
- }
-
- template <typename Char_>
- static uint64_t type(const NamedArg<Char_> &) {
- return Arg::NAMED_ARG;
- }
-};
-
-template <typename Char>
-struct NamedArg : Arg {
- BasicStringRef<Char> name;
-
- template <typename T>
- NamedArg(BasicStringRef<Char> name, const T &value)
- : name(name), Arg(MakeValue<Char>(value)) {
- type = static_cast<internal::Arg::Type>(MakeValue<Char>::type(value));
- }
-};
-
-#define FMT_DISPATCH(call) static_cast<Impl*>(this)->call
-
-// An argument visitor.
-// To use ArgVisitor define a subclass that implements some or all of the
-// visit methods with the same signatures as the methods in ArgVisitor,
-// for example, visit_int(int).
-// Specify the subclass name as the Impl template parameter. Then calling
-// ArgVisitor::visit for some argument will dispatch to a visit method
-// specific to the argument type. For example, if the argument type is
-// double then visit_double(double) method of a subclass will be called.
-// If the subclass doesn't contain a method with this signature, then
-// a corresponding method of ArgVisitor will be called.
-//
-// Example:
-// class MyArgVisitor : public ArgVisitor<MyArgVisitor, void> {
-// public:
-// void visit_int(int value) { print("{}", value); }
-// void visit_double(double value) { print("{}", value ); }
-// };
-//
-// ArgVisitor uses the curiously recurring template pattern:
-// http://en.wikipedia.org/wiki/Curiously_recurring_template_pattern
-template <typename Impl, typename Result>
-class ArgVisitor {
-public:
- void report_unhandled_arg() {}
-
- Result visit_unhandled_arg() {
- FMT_DISPATCH(report_unhandled_arg());
- return Result();
- }
-
- Result visit_int(int value) {
- return FMT_DISPATCH(visit_any_int(value));
- }
- Result visit_long_long(LongLong value) {
- return FMT_DISPATCH(visit_any_int(value));
- }
- Result visit_uint(unsigned value) {
- return FMT_DISPATCH(visit_any_int(value));
- }
- Result visit_ulong_long(ULongLong value) {
- return FMT_DISPATCH(visit_any_int(value));
- }
- Result visit_bool(bool value) {
- return FMT_DISPATCH(visit_any_int(value));
- }
- Result visit_char(int value) {
- return FMT_DISPATCH(visit_any_int(value));
- }
- template <typename T>
- Result visit_any_int(T) {
- return FMT_DISPATCH(visit_unhandled_arg());
- }
-
- Result visit_double(double value) {
- return FMT_DISPATCH(visit_any_double(value));
- }
- Result visit_long_double(long double value) {
- return FMT_DISPATCH(visit_any_double(value));
- }
- template <typename T>
- Result visit_any_double(T) {
- return FMT_DISPATCH(visit_unhandled_arg());
- }
-
- Result visit_string(Arg::StringValue<char>) {
- return FMT_DISPATCH(visit_unhandled_arg());
- }
- Result visit_wstring(Arg::StringValue<wchar_t>) {
- return FMT_DISPATCH(visit_unhandled_arg());
- }
- Result visit_pointer(const void *) {
- return FMT_DISPATCH(visit_unhandled_arg());
- }
- Result visit_custom(Arg::CustomValue) {
- return FMT_DISPATCH(visit_unhandled_arg());
- }
-
- Result visit(const Arg &arg) {
- switch (arg.type) {
- default:
- FMT_ASSERT(false, "invalid argument type");
- return Result();
- case Arg::INT:
- return FMT_DISPATCH(visit_int(arg.int_value));
- case Arg::UINT:
- return FMT_DISPATCH(visit_uint(arg.uint_value));
- case Arg::LONG_LONG:
- return FMT_DISPATCH(visit_long_long(arg.long_long_value));
- case Arg::ULONG_LONG:
- return FMT_DISPATCH(visit_ulong_long(arg.ulong_long_value));
- case Arg::BOOL:
- return FMT_DISPATCH(visit_bool(arg.int_value != 0));
- case Arg::CHAR:
- return FMT_DISPATCH(visit_char(arg.int_value));
- case Arg::DOUBLE:
- return FMT_DISPATCH(visit_double(arg.double_value));
- case Arg::LONG_DOUBLE:
- return FMT_DISPATCH(visit_long_double(arg.long_double_value));
- case Arg::CSTRING: {
- Arg::StringValue<char> str = arg.string;
- str.size = 0;
- return FMT_DISPATCH(visit_string(str));
- }
- case Arg::STRING:
- return FMT_DISPATCH(visit_string(arg.string));
- case Arg::WSTRING:
- return FMT_DISPATCH(visit_wstring(arg.wstring));
- case Arg::POINTER:
- return FMT_DISPATCH(visit_pointer(arg.pointer));
- case Arg::CUSTOM:
- return FMT_DISPATCH(visit_custom(arg.custom));
- }
- }
-};
-
-class RuntimeError : public std::runtime_error {
-protected:
- RuntimeError() : std::runtime_error("") {}
-};
-
-template <typename Impl, typename Char>
-class BasicArgFormatter;
-
-template <typename Char>
-class PrintfArgFormatter;
-
-template <typename Char>
-class ArgMap;
-} // namespace internal
-
-/** An argument list. */
-class ArgList {
-private:
- // To reduce compiled code size per formatting function call, types of first
- // MAX_PACKED_ARGS arguments are passed in the types_ field.
- uint64_t types_;
- union {
- // If the number of arguments is less than MAX_PACKED_ARGS, the argument
- // values are stored in values_, otherwise they are stored in args_.
- // This is done to reduce compiled code size as storing larger objects
- // may require more code (at least on x86-64) even if the same amount of
- // data is actually copied to stack. It saves ~10% on the bloat test.
- const internal::Value *values_;
- const internal::Arg *args_;
- };
-
- internal::Arg::Type type(unsigned index) const {
- unsigned shift = index * 4;
- uint64_t mask = 0xf;
- return static_cast<internal::Arg::Type>(
- (types_ & (mask << shift)) >> shift);
- }
-
- template <typename Char>
- friend class internal::ArgMap;
-
-public:
- // Maximum number of arguments with packed types.
- enum { MAX_PACKED_ARGS = 16 };
-
- ArgList() : types_(0) {}
-
- ArgList(ULongLong types, const internal::Value *values)
- : types_(types), values_(values) {}
- ArgList(ULongLong types, const internal::Arg *args)
- : types_(types), args_(args) {}
-
- /** Returns the argument at specified index. */
- internal::Arg operator[](unsigned index) const {
- using internal::Arg;
- Arg arg;
- bool use_values = type(MAX_PACKED_ARGS - 1) == Arg::NONE;
- if (index < MAX_PACKED_ARGS) {
- Arg::Type arg_type = type(index);
- internal::Value &val = arg;
- if (arg_type != Arg::NONE)
- val = use_values ? values_[index] : args_[index];
- arg.type = arg_type;
- return arg;
- }
- if (use_values) {
- // The index is greater than the number of arguments that can be stored
- // in values, so return a "none" argument.
- arg.type = Arg::NONE;
- return arg;
- }
- for (unsigned i = MAX_PACKED_ARGS; i <= index; ++i) {
- if (args_[i].type == Arg::NONE)
- return args_[i];
- }
- return args_[index];
- }
-};
-
-struct FormatSpec;
-
-namespace internal {
-
-template <typename Char>
-class ArgMap {
-private:
- typedef std::map<fmt::BasicStringRef<Char>, internal::Arg> MapType;
- typedef typename MapType::value_type Pair;
-
- MapType map_;
-
-public:
- void init(const ArgList &args);
-
- const internal::Arg* find(const fmt::BasicStringRef<Char> &name) const {
- typename MapType::const_iterator it = map_.find(name);
- return it != map_.end() ? &it->second : 0;
- }
-};
-
-class FormatterBase {
-private:
- ArgList args_;
- int next_arg_index_;
-
- // Returns the argument with specified index.
- Arg do_get_arg(unsigned arg_index, const char *&error);
-
-protected:
- const ArgList &args() const {
- return args_;
- }
-
- void set_args(const ArgList &args) {
- args_ = args;
- next_arg_index_ = 0;
- }
-
- // Returns the next argument.
- Arg next_arg(const char *&error);
-
- // Checks if manual indexing is used and returns the argument with
- // specified index.
- Arg get_arg(unsigned arg_index, const char *&error);
-
- bool check_no_auto_index(const char *&error);
-
- template <typename Char>
- void write(BasicWriter<Char> &w, const Char *start, const Char *end) {
- if (start != end)
- w << BasicStringRef<Char>(start, end - start);
- }
-};
-
-// A printf formatter.
-template <typename Char>
-class PrintfFormatter : private FormatterBase {
-private:
- void parse_flags(FormatSpec &spec, const Char *&s);
-
- // Returns the argument with specified index or, if arg_index is equal
- // to the maximum unsigned value, the next argument.
- Arg get_arg(const Char *s,
- unsigned arg_index = (std::numeric_limits<unsigned>::max)());
-
- // Parses argument index, flags and width and returns the argument index.
- unsigned parse_header(const Char *&s, FormatSpec &spec);
-
-public:
- void format(BasicWriter<Char> &writer,
- BasicCStringRef<Char> format_str, const ArgList &args);
-};
-} // namespace internal
-
-// A formatter.
-template <typename Char>
-class BasicFormatter : private internal::FormatterBase {
-private:
- BasicWriter<Char> &writer_;
- const Char *start_;
- internal::ArgMap<Char> map_;
-
- FMT_DISALLOW_COPY_AND_ASSIGN(BasicFormatter);
-
- using FormatterBase::get_arg;
-
- // Checks if manual indexing is used and returns the argument with
- // specified name.
- internal::Arg get_arg(BasicStringRef<Char> arg_name, const char *&error);
-
- // Parses argument index and returns corresponding argument.
- internal::Arg parse_arg_index(const Char *&s);
-
- // Parses argument name and returns corresponding argument.
- internal::Arg parse_arg_name(const Char *&s);
-
-public:
- explicit BasicFormatter(BasicWriter<Char> &w) : writer_(w) {}
-
- BasicWriter<Char> &writer() {
- return writer_;
- }
-
- void format(BasicCStringRef<Char> format_str, const ArgList &args);
-
- const Char *format(const Char *&format_str, const internal::Arg &arg);
-};
-
-enum Alignment {
- ALIGN_DEFAULT, ALIGN_LEFT, ALIGN_RIGHT, ALIGN_CENTER, ALIGN_NUMERIC
-};
-
-// Flags.
-enum {
- SIGN_FLAG = 1, PLUS_FLAG = 2, MINUS_FLAG = 4, HASH_FLAG = 8,
- CHAR_FLAG = 0x10 // Argument has char type - used in error reporting.
-};
-
-// An empty format specifier.
-struct EmptySpec {};
-
-// A type specifier.
-template <char TYPE>
-struct TypeSpec : EmptySpec {
- Alignment align() const {
- return ALIGN_DEFAULT;
- }
- unsigned width() const {
- return 0;
- }
- int precision() const {
- return -1;
- }
- bool flag(unsigned) const {
- return false;
- }
- char type() const {
- return TYPE;
- }
- char fill() const {
- return ' ';
- }
-};
-
-// A width specifier.
-struct WidthSpec {
- unsigned width_;
- // Fill is always wchar_t and cast to char if necessary to avoid having
- // two specialization of WidthSpec and its subclasses.
- wchar_t fill_;
-
- WidthSpec(unsigned width, wchar_t fill) : width_(width), fill_(fill) {}
-
- unsigned width() const {
- return width_;
- }
- wchar_t fill() const {
- return fill_;
- }
-};
-
-// An alignment specifier.
-struct AlignSpec : WidthSpec {
- Alignment align_;
-
- AlignSpec(unsigned width, wchar_t fill, Alignment align = ALIGN_DEFAULT)
- : WidthSpec(width, fill), align_(align) {}
-
- Alignment align() const {
- return align_;
- }
-
- int precision() const {
- return -1;
- }
-};
-
-// An alignment and type specifier.
-template <char TYPE>
-struct AlignTypeSpec : AlignSpec {
- AlignTypeSpec(unsigned width, wchar_t fill) : AlignSpec(width, fill) {}
-
- bool flag(unsigned) const {
- return false;
- }
- char type() const {
- return TYPE;
- }
-};
-
-// A full format specifier.
-struct FormatSpec : AlignSpec {
- unsigned flags_;
- int precision_;
- char type_;
-
- FormatSpec(
- unsigned width = 0, char type = 0, wchar_t fill = ' ')
- : AlignSpec(width, fill), flags_(0), precision_(-1), type_(type) {}
-
- bool flag(unsigned f) const {
- return (flags_ & f) != 0;
- }
- int precision() const {
- return precision_;
- }
- char type() const {
- return type_;
- }
-};
-
-// An integer format specifier.
-template <typename T, typename SpecT = TypeSpec<0>, typename Char = char>
-class IntFormatSpec : public SpecT {
-private:
- T value_;
-
-public:
- IntFormatSpec(T val, const SpecT &spec = SpecT())
- : SpecT(spec), value_(val) {}
-
- T value() const {
- return value_;
- }
-};
-
-// A string format specifier.
-template <typename Char>
-class StrFormatSpec : public AlignSpec {
-private:
- const Char *str_;
-
-public:
- template <typename FillChar>
- StrFormatSpec(const Char *str, unsigned width, FillChar fill)
- : AlignSpec(width, fill), str_(str) {
- internal::CharTraits<Char>::convert(FillChar());
- }
-
- const Char *str() const {
- return str_;
- }
-};
-
-/**
-Returns an integer format specifier to format the value in base 2.
-*/
-IntFormatSpec<int, TypeSpec<'b'> > bin(int value);
-
-/**
-Returns an integer format specifier to format the value in base 8.
-*/
-IntFormatSpec<int, TypeSpec<'o'> > oct(int value);
-
-/**
-Returns an integer format specifier to format the value in base 16 using
-lower-case letters for the digits above 9.
-*/
-IntFormatSpec<int, TypeSpec<'x'> > hex(int value);
-
-/**
-Returns an integer formatter format specifier to format in base 16 using
-upper-case letters for the digits above 9.
-*/
-IntFormatSpec<int, TypeSpec<'X'> > hexu(int value);
-
-/**
-\rst
-Returns an integer format specifier to pad the formatted argument with the
-fill character to the specified width using the default (right) numeric
-alignment.
-
-**Example**::
-
-MemoryWriter out;
-out << pad(hex(0xcafe), 8, '0');
-// out.str() == "0000cafe"
-
-\endrst
-*/
-template <char TYPE_CODE, typename Char>
-IntFormatSpec<int, AlignTypeSpec<TYPE_CODE>, Char> pad(
- int value, unsigned width, Char fill = ' ');
-
-#define FMT_DEFINE_INT_FORMATTERS(TYPE) \
-inline IntFormatSpec<TYPE, TypeSpec<'b'> > bin(TYPE value) { \
- return IntFormatSpec<TYPE, TypeSpec<'b'> >(value, TypeSpec<'b'>()); \
- } \
- \
-inline IntFormatSpec<TYPE, TypeSpec<'o'> > oct(TYPE value) { \
- return IntFormatSpec<TYPE, TypeSpec<'o'> >(value, TypeSpec<'o'>()); \
- } \
- \
-inline IntFormatSpec<TYPE, TypeSpec<'x'> > hex(TYPE value) { \
- return IntFormatSpec<TYPE, TypeSpec<'x'> >(value, TypeSpec<'x'>()); \
- } \
- \
-inline IntFormatSpec<TYPE, TypeSpec<'X'> > hexu(TYPE value) { \
- return IntFormatSpec<TYPE, TypeSpec<'X'> >(value, TypeSpec<'X'>()); \
- } \
- \
-template <char TYPE_CODE> \
-inline IntFormatSpec<TYPE, AlignTypeSpec<TYPE_CODE> > pad( \
- IntFormatSpec<TYPE, TypeSpec<TYPE_CODE> > f, unsigned width) { \
- return IntFormatSpec<TYPE, AlignTypeSpec<TYPE_CODE> >( \
- f.value(), AlignTypeSpec<TYPE_CODE>(width, ' ')); \
- } \
- \
-/* For compatibility with older compilers we provide two overloads for pad, */ \
-/* one that takes a fill character and one that doesn't. In the future this */ \
-/* can be replaced with one overload making the template argument Char */ \
-/* default to char (C++11). */ \
-template <char TYPE_CODE, typename Char> \
-inline IntFormatSpec<TYPE, AlignTypeSpec<TYPE_CODE>, Char> pad( \
- IntFormatSpec<TYPE, TypeSpec<TYPE_CODE>, Char> f, \
- unsigned width, Char fill) { \
- return IntFormatSpec<TYPE, AlignTypeSpec<TYPE_CODE>, Char>( \
- f.value(), AlignTypeSpec<TYPE_CODE>(width, fill)); \
- } \
- \
-inline IntFormatSpec<TYPE, AlignTypeSpec<0> > pad( \
- TYPE value, unsigned width) { \
- return IntFormatSpec<TYPE, AlignTypeSpec<0> >( \
- value, AlignTypeSpec<0>(width, ' ')); \
- } \
- \
-template <typename Char> \
-inline IntFormatSpec<TYPE, AlignTypeSpec<0>, Char> pad( \
- TYPE value, unsigned width, Char fill) { \
- return IntFormatSpec<TYPE, AlignTypeSpec<0>, Char>( \
- value, AlignTypeSpec<0>(width, fill)); \
- }
-
-FMT_DEFINE_INT_FORMATTERS(int)
-FMT_DEFINE_INT_FORMATTERS(long)
-FMT_DEFINE_INT_FORMATTERS(unsigned)
-FMT_DEFINE_INT_FORMATTERS(unsigned long)
-FMT_DEFINE_INT_FORMATTERS(LongLong)
-FMT_DEFINE_INT_FORMATTERS(ULongLong)
-
-/**
-\rst
-Returns a string formatter that pads the formatted argument with the fill
-character to the specified width using the default (left) string alignment.
-
-**Example**::
-
-std::string s = str(MemoryWriter() << pad("abc", 8));
-// s == "abc "
-
-\endrst
-*/
-template <typename Char>
-inline StrFormatSpec<Char> pad(
- const Char *str, unsigned width, Char fill = ' ') {
- return StrFormatSpec<Char>(str, width, fill);
-}
-
-inline StrFormatSpec<wchar_t> pad(
- const wchar_t *str, unsigned width, char fill = ' ') {
- return StrFormatSpec<wchar_t>(str, width, fill);
-}
-
-// Generates a comma-separated list with results of applying f to
-// numbers 0..n-1.
-# define FMT_GEN(n, f) FMT_GEN##n(f)
-# define FMT_GEN1(f) f(0)
-# define FMT_GEN2(f) FMT_GEN1(f), f(1)
-# define FMT_GEN3(f) FMT_GEN2(f), f(2)
-# define FMT_GEN4(f) FMT_GEN3(f), f(3)
-# define FMT_GEN5(f) FMT_GEN4(f), f(4)
-# define FMT_GEN6(f) FMT_GEN5(f), f(5)
-# define FMT_GEN7(f) FMT_GEN6(f), f(6)
-# define FMT_GEN8(f) FMT_GEN7(f), f(7)
-# define FMT_GEN9(f) FMT_GEN8(f), f(8)
-# define FMT_GEN10(f) FMT_GEN9(f), f(9)
-# define FMT_GEN11(f) FMT_GEN10(f), f(10)
-# define FMT_GEN12(f) FMT_GEN11(f), f(11)
-# define FMT_GEN13(f) FMT_GEN12(f), f(12)
-# define FMT_GEN14(f) FMT_GEN13(f), f(13)
-# define FMT_GEN15(f) FMT_GEN14(f), f(14)
-
-namespace internal {
-inline uint64_t make_type() {
- return 0;
-}
-
-template <typename T>
-inline uint64_t make_type(const T &arg) {
- return MakeValue<char>::type(arg);
-}
-
-template <unsigned N>
-struct ArgArray {
- // Computes the argument array size by adding 1 to N, which is the number of
- // arguments, if N is zero, because array of zero size is invalid, or if N
- // is greater than ArgList::MAX_PACKED_ARGS to accommodate for an extra
- // argument that marks the end of the list.
- enum { SIZE = N + (N == 0 || N >= ArgList::MAX_PACKED_ARGS ? 1 : 0) };
-
- typedef typename Conditional<
- (N < ArgList::MAX_PACKED_ARGS), Value, Arg>::type Type[SIZE];
-};
-
-#if FMT_USE_VARIADIC_TEMPLATES
-template <typename Arg, typename... Args>
-inline uint64_t make_type(const Arg &first, const Args & ... tail) {
- return make_type(first) | (make_type(tail...) << 4);
-}
-
-inline void do_set_types(Arg *) {}
-
-template <typename T, typename... Args>
-inline void do_set_types(Arg *args, const T &arg, const Args & ... tail) {
- args->type = static_cast<Arg::Type>(MakeValue<T>::type(arg));
- do_set_types(args + 1, tail...);
-}
-
-template <typename... Args>
-inline void set_types(Arg *array, const Args & ... args) {
- if (check(sizeof...(Args) > ArgList::MAX_PACKED_ARGS))
- do_set_types(array, args...);
- array[sizeof...(Args)].type = Arg::NONE;
-}
-
-template <typename... Args>
-inline void set_types(Value *, const Args & ...) {
- // Do nothing as types are passed separately from values.
-}
-
-template <typename Char, typename Value>
-inline void store_args(Value *) {}
-
-template <typename Char, typename Arg, typename T, typename... Args>
-inline void store_args(Arg *args, const T &arg, const Args & ... tail) {
- // Assign only the Value subobject of Arg and don't overwrite type (if any)
- // that is assigned by set_types.
- Value &value = *args;
- value = MakeValue<Char>(arg);
- store_args<Char>(args + 1, tail...);
-}
-
-template <typename Char, typename... Args>
-ArgList make_arg_list(typename ArgArray<sizeof...(Args)>::Type array,
- const Args & ... args) {
- if (check(sizeof...(Args) >= ArgList::MAX_PACKED_ARGS))
- set_types(array, args...);
- store_args<Char>(array, args...);
- return ArgList(make_type(args...), array);
-}
-#else
-
-struct ArgType {
- uint64_t type;
-
- ArgType() : type(0) {}
-
- template <typename T>
- ArgType(const T &arg) : type(make_type(arg)) {}
-};
-
-# define FMT_ARG_TYPE_DEFAULT(n) ArgType t##n = ArgType()
-
-inline uint64_t make_type(FMT_GEN15(FMT_ARG_TYPE_DEFAULT)) {
- return t0.type | (t1.type << 4) | (t2.type << 8) | (t3.type << 12) |
- (t4.type << 16) | (t5.type << 20) | (t6.type << 24) | (t7.type << 28) |
- (t8.type << 32) | (t9.type << 36) | (t10.type << 40) | (t11.type << 44) |
- (t12.type << 48) | (t13.type << 52) | (t14.type << 56);
-}
-#endif
-} // namespace internal
-
-# define FMT_MAKE_TEMPLATE_ARG(n) typename T##n
-# define FMT_MAKE_ARG_TYPE(n) T##n
-# define FMT_MAKE_ARG(n) const T##n &v##n
-# define FMT_MAKE_REF_char(n) fmt::internal::MakeValue<char>(v##n)
-# define FMT_MAKE_REF_wchar_t(n) fmt::internal::MakeValue<wchar_t>(v##n)
-
-#if FMT_USE_VARIADIC_TEMPLATES
-// Defines a variadic function returning void.
-# define FMT_VARIADIC_VOID(func, arg_type) \
- template <typename... Args> \
- void func(arg_type arg0, const Args & ... args) { \
- typename fmt::internal::ArgArray<sizeof...(Args)>::Type array; \
- func(arg0, fmt::internal::make_arg_list<Char>(array, args...)); \
- }
-
-// Defines a variadic constructor.
-# define FMT_VARIADIC_CTOR(ctor, func, arg0_type, arg1_type) \
- template <typename... Args> \
- ctor(arg0_type arg0, arg1_type arg1, const Args & ... args) { \
- typename fmt::internal::ArgArray<sizeof...(Args)>::Type array; \
- func(arg0, arg1, fmt::internal::make_arg_list<Char>(array, args...)); \
- }
-
-#else
-
-# define FMT_MAKE_REF(n) fmt::internal::MakeValue<Char>(v##n)
-# define FMT_MAKE_REF2(n) v##n
-
-// Defines a wrapper for a function taking one argument of type arg_type
-// and n additional arguments of arbitrary types.
-# define FMT_WRAP1(func, arg_type, n) \
- template <FMT_GEN(n, FMT_MAKE_TEMPLATE_ARG)> \
- inline void func(arg_type arg1, FMT_GEN(n, FMT_MAKE_ARG)) { \
- const fmt::internal::ArgArray<n>::Type array = {FMT_GEN(n, FMT_MAKE_REF)}; \
- func(arg1, fmt::ArgList( \
- fmt::internal::make_type(FMT_GEN(n, FMT_MAKE_REF2)), array)); \
- }
-
-// Emulates a variadic function returning void on a pre-C++11 compiler.
-# define FMT_VARIADIC_VOID(func, arg_type) \
- inline void func(arg_type arg) { func(arg, fmt::ArgList()); } \
- FMT_WRAP1(func, arg_type, 1) FMT_WRAP1(func, arg_type, 2) \
- FMT_WRAP1(func, arg_type, 3) FMT_WRAP1(func, arg_type, 4) \
- FMT_WRAP1(func, arg_type, 5) FMT_WRAP1(func, arg_type, 6) \
- FMT_WRAP1(func, arg_type, 7) FMT_WRAP1(func, arg_type, 8) \
- FMT_WRAP1(func, arg_type, 9) FMT_WRAP1(func, arg_type, 10)
-
-# define FMT_CTOR(ctor, func, arg0_type, arg1_type, n) \
- template <FMT_GEN(n, FMT_MAKE_TEMPLATE_ARG)> \
- ctor(arg0_type arg0, arg1_type arg1, FMT_GEN(n, FMT_MAKE_ARG)) { \
- const fmt::internal::ArgArray<n>::Type array = {FMT_GEN(n, FMT_MAKE_REF)}; \
- func(arg0, arg1, fmt::ArgList( \
- fmt::internal::make_type(FMT_GEN(n, FMT_MAKE_REF2)), array)); \
- }
-
-// Emulates a variadic constructor on a pre-C++11 compiler.
-# define FMT_VARIADIC_CTOR(ctor, func, arg0_type, arg1_type) \
- FMT_CTOR(ctor, func, arg0_type, arg1_type, 1) \
- FMT_CTOR(ctor, func, arg0_type, arg1_type, 2) \
- FMT_CTOR(ctor, func, arg0_type, arg1_type, 3) \
- FMT_CTOR(ctor, func, arg0_type, arg1_type, 4) \
- FMT_CTOR(ctor, func, arg0_type, arg1_type, 5) \
- FMT_CTOR(ctor, func, arg0_type, arg1_type, 6) \
- FMT_CTOR(ctor, func, arg0_type, arg1_type, 7) \
- FMT_CTOR(ctor, func, arg0_type, arg1_type, 8) \
- FMT_CTOR(ctor, func, arg0_type, arg1_type, 9) \
- FMT_CTOR(ctor, func, arg0_type, arg1_type, 10)
-#endif
-
-// Generates a comma-separated list with results of applying f to pairs
-// (argument, index).
-#define FMT_FOR_EACH1(f, x0) f(x0, 0)
-#define FMT_FOR_EACH2(f, x0, x1) \
- FMT_FOR_EACH1(f, x0), f(x1, 1)
-#define FMT_FOR_EACH3(f, x0, x1, x2) \
- FMT_FOR_EACH2(f, x0 ,x1), f(x2, 2)
-#define FMT_FOR_EACH4(f, x0, x1, x2, x3) \
- FMT_FOR_EACH3(f, x0, x1, x2), f(x3, 3)
-#define FMT_FOR_EACH5(f, x0, x1, x2, x3, x4) \
- FMT_FOR_EACH4(f, x0, x1, x2, x3), f(x4, 4)
-#define FMT_FOR_EACH6(f, x0, x1, x2, x3, x4, x5) \
- FMT_FOR_EACH5(f, x0, x1, x2, x3, x4), f(x5, 5)
-#define FMT_FOR_EACH7(f, x0, x1, x2, x3, x4, x5, x6) \
- FMT_FOR_EACH6(f, x0, x1, x2, x3, x4, x5), f(x6, 6)
-#define FMT_FOR_EACH8(f, x0, x1, x2, x3, x4, x5, x6, x7) \
- FMT_FOR_EACH7(f, x0, x1, x2, x3, x4, x5, x6), f(x7, 7)
-#define FMT_FOR_EACH9(f, x0, x1, x2, x3, x4, x5, x6, x7, x8) \
- FMT_FOR_EACH8(f, x0, x1, x2, x3, x4, x5, x6, x7), f(x8, 8)
-#define FMT_FOR_EACH10(f, x0, x1, x2, x3, x4, x5, x6, x7, x8, x9) \
- FMT_FOR_EACH9(f, x0, x1, x2, x3, x4, x5, x6, x7, x8), f(x9, 9)
-
-/**
-An error returned by an operating system or a language runtime,
-for example a file opening error.
-*/
-class SystemError : public internal::RuntimeError {
-private:
- void init(int err_code, CStringRef format_str, ArgList args);
-
-protected:
- int error_code_;
-
- typedef char Char; // For FMT_VARIADIC_CTOR.
-
- SystemError() {}
-
-public:
- /**
- \rst
- Constructs a :class:`fmt::SystemError` object with the description
- of the form
-
- .. parsed-literal::
- *<message>*: *<system-message>*
-
- where *<message>* is the formatted message and *<system-message>* is
- the system message corresponding to the error code.
- *error_code* is a system error code as given by ``errno``.
- If *error_code* is not a valid error code such as -1, the system message
- may look like "Unknown error -1" and is platform-dependent.
-
- **Example**::
-
- // This throws a SystemError with the description
- // cannot open file 'madeup': No such file or directory
- // or similar (system message may vary).
- const char *filename = "madeup";
- std::FILE *file = std::fopen(filename, "r");
- if (!file)
- throw fmt::SystemError(errno, "cannot open file '{}'", filename);
- \endrst
- */
- SystemError(int error_code, CStringRef message) {
- init(error_code, message, ArgList());
- }
- FMT_VARIADIC_CTOR(SystemError, init, int, CStringRef)
-
- int error_code() const {
- return error_code_;
- }
-};
-
-/**
-\rst
-This template provides operations for formatting and writing data into
-a character stream. The output is stored in a buffer provided by a subclass
-such as :class:`fmt::BasicMemoryWriter`.
-
-You can use one of the following typedefs for common character types:
-
-+---------+----------------------+
-| Type | Definition |
-+=========+======================+
-| Writer | BasicWriter<char> |
-+---------+----------------------+
-| WWriter | BasicWriter<wchar_t> |
-+---------+----------------------+
-
-\endrst
-*/
-template <typename Char>
-class BasicWriter {
-private:
- // Output buffer.
- Buffer<Char> &buffer_;
-
- FMT_DISALLOW_COPY_AND_ASSIGN(BasicWriter);
-
- typedef typename internal::CharTraits<Char>::CharPtr CharPtr;
-
-#if _SECURE_SCL
- // Returns pointer value.
- static Char *get(CharPtr p) {
- return p.base();
- }
-#else
- static Char *get(Char *p) {
- return p;
- }
-#endif
-
- // Fills the padding around the content and returns the pointer to the
- // content area.
- static CharPtr fill_padding(CharPtr buffer,
- unsigned total_size, std::size_t content_size, wchar_t fill);
-
- // Grows the buffer by n characters and returns a pointer to the newly
- // allocated area.
- CharPtr grow_buffer(std::size_t n) {
- std::size_t size = buffer_.size();
- buffer_.resize(size + n);
- return internal::make_ptr(&buffer_[size], n);
- }
-
- // Prepare a buffer for integer formatting.
- CharPtr prepare_int_buffer(unsigned num_digits,
- const EmptySpec &, const char *prefix, unsigned prefix_size) {
- unsigned size = prefix_size + num_digits;
- CharPtr p = grow_buffer(size);
- std::copy(prefix, prefix + prefix_size, p);
- return p + size - 1;
- }
-
- template <typename Spec>
- CharPtr prepare_int_buffer(unsigned num_digits,
- const Spec &spec, const char *prefix, unsigned prefix_size);
-
- // Formats an integer.
- template <typename T, typename Spec>
- void write_int(T value, Spec spec);
-
- // Formats a floating-point number (double or long double).
- template <typename T>
- void write_double(T value, const FormatSpec &spec);
-
- // Writes a formatted string.
- template <typename StrChar>
- CharPtr write_str(
- const StrChar *s, std::size_t size, const AlignSpec &spec);
-
- template <typename StrChar>
- void write_str(
- const internal::Arg::StringValue<StrChar> &str, const FormatSpec &spec);
-
- // This following methods are private to disallow writing wide characters
- // and strings to a char stream. If you want to print a wide string as a
- // pointer as std::ostream does, cast it to const void*.
- // Do not implement!
- void operator<<(typename internal::WCharHelper<wchar_t, Char>::Unsupported);
- void operator<<(
- typename internal::WCharHelper<const wchar_t *, Char>::Unsupported);
-
- // Appends floating-point length specifier to the format string.
- // The second argument is only used for overload resolution.
- void append_float_length(Char *&format_ptr, long double) {
- *format_ptr++ = 'L';
- }
-
- template<typename T>
- void append_float_length(Char *&, T) {}
-
- template <typename Impl, typename Char_>
- friend class internal::BasicArgFormatter;
-
- friend class internal::PrintfArgFormatter<Char>;
-
-protected:
- /**
- Constructs a ``BasicWriter`` object.
- */
- explicit BasicWriter(Buffer<Char> &b) : buffer_(b) {}
-
-public:
- /**
- \rst
- Destroys a ``BasicWriter`` object.
- \endrst
- */
- virtual ~BasicWriter() {}
-
- /**
- Returns the total number of characters written.
- */
- std::size_t size() const {
- return buffer_.size();
- }
-
- /**
- Returns a pointer to the output buffer content. No terminating null
- character is appended.
- */
- const Char *data() const FMT_NOEXCEPT {
- return &buffer_[0];
- }
-
- /**
- Returns a pointer to the output buffer content with terminating null
- character appended.
- */
- const Char *c_str() const {
- std::size_t size = buffer_.size();
- buffer_.reserve(size + 1);
- buffer_[size] = '\0';
- return &buffer_[0];
- }
-
- /**
- \rst
- Returns the content of the output buffer as an `std::string`.
- \endrst
- */
- std::basic_string<Char> str() const {
- return std::basic_string<Char>(&buffer_[0], buffer_.size());
- }
-
- /**
- \rst
- Writes formatted data.
-
- *args* is an argument list representing arbitrary arguments.
-
- **Example**::
-
- MemoryWriter out;
- out.write("Current point:\n");
- out.write("({:+f}, {:+f})", -3.14, 3.14);
-
- This will write the following output to the ``out`` object:
-
- .. code-block:: none
-
- Current point:
- (-3.140000, +3.140000)
-
- The output can be accessed using :func:`data()`, :func:`c_str` or
- :func:`str` methods.
-
- See also :ref:`syntax`.
- \endrst
- */
- void write(BasicCStringRef<Char> format, ArgList args) {
- BasicFormatter<Char>(*this).format(format, args);
- }
- FMT_VARIADIC_VOID(write, BasicCStringRef<Char>)
-
- BasicWriter &operator<<(int value) {
- return *this << IntFormatSpec<int>(value);
- }
- BasicWriter &operator<<(unsigned value) {
- return *this << IntFormatSpec<unsigned>(value);
- }
- BasicWriter &operator<<(long value) {
- return *this << IntFormatSpec<long>(value);
- }
- BasicWriter &operator<<(unsigned long value) {
- return *this << IntFormatSpec<unsigned long>(value);
- }
- BasicWriter &operator<<(LongLong value) {
- return *this << IntFormatSpec<LongLong>(value);
- }
-
- /**
- \rst
- Formats *value* and writes it to the stream.
- \endrst
- */
- BasicWriter &operator<<(ULongLong value) {
- return *this << IntFormatSpec<ULongLong>(value);
- }
-
- BasicWriter &operator<<(double value) {
- write_double(value, FormatSpec());
- return *this;
- }
-
- /**
- \rst
- Formats *value* using the general format for floating-point numbers
- (``'g'``) and writes it to the stream.
- \endrst
- */
- BasicWriter &operator<<(long double value) {
- write_double(value, FormatSpec());
- return *this;
- }
-
- /**
- Writes a character to the stream.
- */
- BasicWriter &operator<<(char value) {
- buffer_.push_back(value);
- return *this;
- }
-
- BasicWriter &operator<<(
- typename internal::WCharHelper<wchar_t, Char>::Supported value) {
- buffer_.push_back(value);
- return *this;
- }
-
- /**
- \rst
- Writes *value* to the stream.
- \endrst
- */
- BasicWriter &operator<<(fmt::BasicStringRef<Char> value) {
- const Char *str = value.data();
- buffer_.append(str, str + value.size());
- return *this;
- }
-
- BasicWriter &operator<<(
- typename internal::WCharHelper<StringRef, Char>::Supported value) {
- const char *str = value.data();
- buffer_.append(str, str + value.size());
- return *this;
- }
-
- template <typename T, typename Spec, typename FillChar>
- BasicWriter &operator<<(IntFormatSpec<T, Spec, FillChar> spec) {
- internal::CharTraits<Char>::convert(FillChar());
- write_int(spec.value(), spec);
- return *this;
- }
-
- template <typename StrChar>
- BasicWriter &operator<<(const StrFormatSpec<StrChar> &spec) {
- const StrChar *s = spec.str();
- write_str(s, std::char_traits<Char>::length(s), spec);
- return *this;
- }
-
- void clear() FMT_NOEXCEPT{ buffer_.clear(); }
-};
-
-template <typename Char>
-template <typename StrChar>
-typename BasicWriter<Char>::CharPtr BasicWriter<Char>::write_str(
- const StrChar *s, std::size_t size, const AlignSpec &spec) {
- CharPtr out = CharPtr();
- if (spec.width() > size) {
- out = grow_buffer(spec.width());
- Char fill = internal::CharTraits<Char>::cast(spec.fill());
- if (spec.align() == ALIGN_RIGHT) {
- std::fill_n(out, spec.width() - size, fill);
- out += spec.width() - size;
- }
- else if (spec.align() == ALIGN_CENTER) {
- out = fill_padding(out, spec.width(), size, fill);
- }
- else {
- std::fill_n(out + size, spec.width() - size, fill);
- }
- }
- else {
- out = grow_buffer(size);
- }
- std::copy(s, s + size, out);
- return out;
-}
-
-template <typename Char>
-typename BasicWriter<Char>::CharPtr
-BasicWriter<Char>::fill_padding(
- CharPtr buffer, unsigned total_size,
- std::size_t content_size, wchar_t fill) {
- std::size_t padding = total_size - content_size;
- std::size_t left_padding = padding / 2;
- Char fill_char = internal::CharTraits<Char>::cast(fill);
- std::fill_n(buffer, left_padding, fill_char);
- buffer += left_padding;
- CharPtr content = buffer;
- std::fill_n(buffer + content_size, padding - left_padding, fill_char);
- return content;
-}
-
-template <typename Char>
-template <typename Spec>
-typename BasicWriter<Char>::CharPtr
-BasicWriter<Char>::prepare_int_buffer(
- unsigned num_digits, const Spec &spec,
- const char *prefix, unsigned prefix_size) {
- unsigned width = spec.width();
- Alignment align = spec.align();
- Char fill = internal::CharTraits<Char>::cast(spec.fill());
- if (spec.precision() > static_cast<int>(num_digits)) {
- // Octal prefix '0' is counted as a digit, so ignore it if precision
- // is specified.
- if (prefix_size > 0 && prefix[prefix_size - 1] == '0')
- --prefix_size;
- unsigned number_size = prefix_size + spec.precision();
- AlignSpec subspec(number_size, '0', ALIGN_NUMERIC);
- if (number_size >= width)
- return prepare_int_buffer(num_digits, subspec, prefix, prefix_size);
- buffer_.reserve(width);
- unsigned fill_size = width - number_size;
- if (align != ALIGN_LEFT) {
- CharPtr p = grow_buffer(fill_size);
- std::fill(p, p + fill_size, fill);
- }
- CharPtr result = prepare_int_buffer(
- num_digits, subspec, prefix, prefix_size);
- if (align == ALIGN_LEFT) {
- CharPtr p = grow_buffer(fill_size);
- std::fill(p, p + fill_size, fill);
- }
- return result;
- }
- unsigned size = prefix_size + num_digits;
- if (width <= size) {
- CharPtr p = grow_buffer(size);
- std::copy(prefix, prefix + prefix_size, p);
- return p + size - 1;
- }
- CharPtr p = grow_buffer(width);
- CharPtr end = p + width;
- if (align == ALIGN_LEFT) {
- std::copy(prefix, prefix + prefix_size, p);
- p += size;
- std::fill(p, end, fill);
- }
- else if (align == ALIGN_CENTER) {
- p = fill_padding(p, width, size, fill);
- std::copy(prefix, prefix + prefix_size, p);
- p += size;
- }
- else {
- if (align == ALIGN_NUMERIC) {
- if (prefix_size != 0) {
- p = std::copy(prefix, prefix + prefix_size, p);
- size -= prefix_size;
- }
- }
- else {
- std::copy(prefix, prefix + prefix_size, end - size);
- }
- std::fill(p, end - size, fill);
- p = end;
- }
- return p - 1;
-}
-
-template <typename Char>
-template <typename T, typename Spec>
-void BasicWriter<Char>::write_int(T value, Spec spec) {
- unsigned prefix_size = 0;
- typedef typename internal::IntTraits<T>::MainType UnsignedType;
- UnsignedType abs_value = value;
- char prefix[4] = "";
- if (internal::is_negative(value)) {
- prefix[0] = '-';
- ++prefix_size;
- abs_value = 0 - abs_value;
- }
- else if (spec.flag(SIGN_FLAG)) {
- prefix[0] = spec.flag(PLUS_FLAG) ? '+' : ' ';
- ++prefix_size;
- }
- switch (spec.type()) {
- case 0:
- case 'd': {
- unsigned num_digits = internal::count_digits(abs_value);
- CharPtr p = prepare_int_buffer(
- num_digits, spec, prefix, prefix_size) + 1 - num_digits;
- internal::format_decimal(get(p), abs_value, num_digits);
- break;
- }
- case 'x':
- case 'X': {
- UnsignedType n = abs_value;
- if (spec.flag(HASH_FLAG)) {
- prefix[prefix_size++] = '0';
- prefix[prefix_size++] = spec.type();
- }
- unsigned num_digits = 0;
- do {
- ++num_digits;
- } while ((n >>= 4) != 0);
- Char *p = get(prepare_int_buffer(
- num_digits, spec, prefix, prefix_size));
- n = abs_value;
- const char *digits = spec.type() == 'x' ?
- "0123456789abcdef" : "0123456789ABCDEF";
- do {
- *p-- = digits[n & 0xf];
- } while ((n >>= 4) != 0);
- break;
- }
- case 'b':
- case 'B': {
- UnsignedType n = abs_value;
- if (spec.flag(HASH_FLAG)) {
- prefix[prefix_size++] = '0';
- prefix[prefix_size++] = spec.type();
- }
- unsigned num_digits = 0;
- do {
- ++num_digits;
- } while ((n >>= 1) != 0);
- Char *p = get(prepare_int_buffer(num_digits, spec, prefix, prefix_size));
- n = abs_value;
- do {
- *p-- = '0' + (n & 1);
- } while ((n >>= 1) != 0);
- break;
- }
- case 'o': {
- UnsignedType n = abs_value;
- if (spec.flag(HASH_FLAG))
- prefix[prefix_size++] = '0';
- unsigned num_digits = 0;
- do {
- ++num_digits;
- } while ((n >>= 3) != 0);
- Char *p = get(prepare_int_buffer(num_digits, spec, prefix, prefix_size));
- n = abs_value;
- do {
- *p-- = '0' + (n & 7);
- } while ((n >>= 3) != 0);
- break;
- }
- default:
- internal::report_unknown_type(
- spec.type(), spec.flag(CHAR_FLAG) ? "char" : "integer");
- break;
- }
-}
-
-template <typename Char>
-template <typename T>
-void BasicWriter<Char>::write_double(
- T value, const FormatSpec &spec) {
- // Check type.
- char type = spec.type();
- bool upper = false;
- switch (type) {
- case 0:
- type = 'g';
- break;
- case 'e':
- case 'f':
- case 'g':
- case 'a':
- break;
- case 'F':
-#ifdef _MSC_VER
- // MSVC's printf doesn't support 'F'.
- type = 'f';
-#endif
- // Fall through.
- case 'E':
- case 'G':
- case 'A':
- upper = true;
- break;
- default:
- internal::report_unknown_type(type, "double");
- break;
- }
-
- char sign = 0;
- // Use getsign instead of value < 0 because the latter is always
- // false for NaN.
- if (internal::getsign(static_cast<double>(value))) {
- sign = '-';
- value = -value;
- }
- else if (spec.flag(SIGN_FLAG)) {
- sign = spec.flag(PLUS_FLAG) ? '+' : ' ';
- }
-
- if (value != value) {
- // Format NaN ourselves because sprintf's output is not consistent
- // across platforms.
- std::size_t nan_size = 4;
- const char *nan = upper ? " NAN" : " nan";
- if (!sign) {
- --nan_size;
- ++nan;
- }
- CharPtr out = write_str(nan, nan_size, spec);
- if (sign)
- *out = sign;
- return;
- }
-
- if (internal::isinfinity(value)) {
- // Format infinity ourselves because sprintf's output is not consistent
- // across platforms.
- std::size_t inf_size = 4;
- const char *inf = upper ? " INF" : " inf";
- if (!sign) {
- --inf_size;
- ++inf;
- }
- CharPtr out = write_str(inf, inf_size, spec);
- if (sign)
- *out = sign;
- return;
- }
-
- std::size_t offset = buffer_.size();
- unsigned width = spec.width();
- if (sign) {
- buffer_.reserve(buffer_.size() + (std::max)(width, 1u));
- if (width > 0)
- --width;
- ++offset;
- }
-
- // Build format string.
- enum { MAX_FORMAT_SIZE = 10 }; // longest format: %#-*.*Lg
- Char format[MAX_FORMAT_SIZE];
- Char *format_ptr = format;
- *format_ptr++ = '%';
- unsigned width_for_sprintf = width;
- if (spec.flag(HASH_FLAG))
- *format_ptr++ = '#';
- if (spec.align() == ALIGN_CENTER) {
- width_for_sprintf = 0;
- }
- else {
- if (spec.align() == ALIGN_LEFT)
- *format_ptr++ = '-';
- if (width != 0)
- *format_ptr++ = '*';
- }
- if (spec.precision() >= 0) {
- *format_ptr++ = '.';
- *format_ptr++ = '*';
- }
-
- append_float_length(format_ptr, value);
- *format_ptr++ = type;
- *format_ptr = '\0';
-
- // Format using snprintf.
- Char fill = internal::CharTraits<Char>::cast(spec.fill());
- for (;;) {
- std::size_t buffer_size = buffer_.capacity() - offset;
-#if _MSC_VER
- // MSVC's vsnprintf_s doesn't work with zero size, so reserve
- // space for at least one extra character to make the size non-zero.
- // Note that the buffer's capacity will increase by more than 1.
- if (buffer_size == 0) {
- buffer_.reserve(offset + 1);
- buffer_size = buffer_.capacity() - offset;
- }
-#endif
- Char *start = &buffer_[offset];
- int n = internal::CharTraits<Char>::format_float(
- start, buffer_size, format, width_for_sprintf, spec.precision(), value);
- if (n >= 0 && offset + n < buffer_.capacity()) {
- if (sign) {
- if ((spec.align() != ALIGN_RIGHT && spec.align() != ALIGN_DEFAULT) ||
- *start != ' ') {
- *(start - 1) = sign;
- sign = 0;
- }
- else {
- *(start - 1) = fill;
- }
- ++n;
- }
- if (spec.align() == ALIGN_CENTER &&
- spec.width() > static_cast<unsigned>(n)) {
- width = spec.width();
- CharPtr p = grow_buffer(width);
- std::copy(p, p + n, p + (width - n) / 2);
- fill_padding(p, spec.width(), n, fill);
- return;
- }
- if (spec.fill() != ' ' || sign) {
- while (*start == ' ')
- *start++ = fill;
- if (sign)
- *(start - 1) = sign;
- }
- grow_buffer(n);
- return;
- }
- // If n is negative we ask to increase the capacity by at least 1,
- // but as std::vector, the buffer grows exponentially.
- buffer_.reserve(n >= 0 ? offset + n + 1 : buffer_.capacity() + 1);
- }
-}
-
-/**
-\rst
-This class template provides operations for formatting and writing data
-into a character stream. The output is stored in a memory buffer that grows
-dynamically.
-
-You can use one of the following typedefs for common character types
-and the standard allocator:
-
-+---------------+-----------------------------------------------------+
-| Type | Definition |
-+===============+=====================================================+
-| MemoryWriter | BasicMemoryWriter<char, std::allocator<char>> |
-+---------------+-----------------------------------------------------+
-| WMemoryWriter | BasicMemoryWriter<wchar_t, std::allocator<wchar_t>> |
-+---------------+-----------------------------------------------------+
-
-**Example**::
-
-MemoryWriter out;
-out << "The answer is " << 42 << "\n";
-out.write("({:+f}, {:+f})", -3.14, 3.14);
-
-This will write the following output to the ``out`` object:
-
-.. code-block:: none
-
-The answer is 42
-(-3.140000, +3.140000)
-
-The output can be converted to an ``std::string`` with ``out.str()`` or
-accessed as a C string with ``out.c_str()``.
-\endrst
-*/
-template <typename Char, typename Allocator = std::allocator<Char> >
-class BasicMemoryWriter : public BasicWriter<Char> {
-private:
- internal::MemoryBuffer<Char, internal::INLINE_BUFFER_SIZE, Allocator> buffer_;
-
-public:
- explicit BasicMemoryWriter(const Allocator& alloc = Allocator())
- : BasicWriter<Char>(buffer_), buffer_(alloc) {}
-
-#if FMT_USE_RVALUE_REFERENCES
- /**
- \rst
- Constructs a :class:`fmt::BasicMemoryWriter` object moving the content
- of the other object to it.
- \endrst
- */
- BasicMemoryWriter(BasicMemoryWriter &&other)
- : BasicWriter<Char>(buffer_), buffer_(std::move(other.buffer_)) {
- }
-
- /**
- \rst
- Moves the content of the other ``BasicMemoryWriter`` object to this one.
- \endrst
- */
- BasicMemoryWriter &operator=(BasicMemoryWriter &&other) {
- buffer_ = std::move(other.buffer_);
- return *this;
- }
-#endif
-};
-
-typedef BasicMemoryWriter<char> MemoryWriter;
-typedef BasicMemoryWriter<wchar_t> WMemoryWriter;
-
-/**
-\rst
-This class template provides operations for formatting and writing data
-into a fixed-size array. For writing into a dynamically growing buffer
-use :class:`fmt::BasicMemoryWriter`.
-
-Any write method will throw ``std::runtime_error`` if the output doesn't fit
-into the array.
-
-You can use one of the following typedefs for common character types:
-
-+--------------+---------------------------+
-| Type | Definition |
-+==============+===========================+
-| ArrayWriter | BasicArrayWriter<char> |
-+--------------+---------------------------+
-| WArrayWriter | BasicArrayWriter<wchar_t> |
-+--------------+---------------------------+
-\endrst
-*/
-template <typename Char>
-class BasicArrayWriter : public BasicWriter<Char> {
-private:
- internal::FixedBuffer<Char> buffer_;
-
-public:
- /**
- \rst
- Constructs a :class:`fmt::BasicArrayWriter` object for *array* of the
- given size.
- \endrst
- */
- BasicArrayWriter(Char *array, std::size_t size)
- : BasicWriter<Char>(buffer_), buffer_(array, size) {}
-
- /**
- \rst
- Constructs a :class:`fmt::BasicArrayWriter` object for *array* of the
- size known at compile time.
- \endrst
- */
- template <std::size_t SIZE>
- explicit BasicArrayWriter(Char(&array)[SIZE])
- : BasicWriter<Char>(buffer_), buffer_(array, SIZE) {}
-};
-
-typedef BasicArrayWriter<char> ArrayWriter;
-typedef BasicArrayWriter<wchar_t> WArrayWriter;
-
-// Formats a value.
-template <typename Char, typename T>
-void format(BasicFormatter<Char> &f, const Char *&format_str, const T &value) {
- std::basic_ostringstream<Char> os;
- os << value;
- std::basic_string<Char> str = os.str();
- internal::Arg arg = internal::MakeValue<Char>(str);
- arg.type = static_cast<internal::Arg::Type>(
- internal::MakeValue<Char>::type(str));
- format_str = f.format(format_str, arg);
-}
-
-// Reports a system error without throwing an exception.
-// Can be used to report errors from destructors.
-void report_system_error(int error_code, StringRef message) FMT_NOEXCEPT;
-
-#if FMT_USE_WINDOWS_H
-
-/** A Windows error. */
-class WindowsError : public SystemError {
-private:
- void init(int error_code, CStringRef format_str, ArgList args);
-
-public:
- /**
- \rst
- Constructs a :class:`fmt::WindowsError` object with the description
- of the form
-
- .. parsed-literal::
- *<message>*: *<system-message>*
-
- where *<message>* is the formatted message and *<system-message>* is the
- system message corresponding to the error code.
- *error_code* is a Windows error code as given by ``GetLastError``.
- If *error_code* is not a valid error code such as -1, the system message
- will look like "error -1".
-
- **Example**::
-
- // This throws a WindowsError with the description
- // cannot open file 'madeup': The system cannot find the file specified.
- // or similar (system message may vary).
- const char *filename = "madeup";
- LPOFSTRUCT of = LPOFSTRUCT();
- HFILE file = OpenFile(filename, &of, OF_READ);
- if (file == HFILE_ERROR) {
- throw fmt::WindowsError(GetLastError(),
- "cannot open file '{}'", filename);
- }
- \endrst
- */
- WindowsError(int error_code, CStringRef message) {
- init(error_code, message, ArgList());
- }
- FMT_VARIADIC_CTOR(WindowsError, init, int, CStringRef)
-};
-
-// Reports a Windows error without throwing an exception.
-// Can be used to report errors from destructors.
-void report_windows_error(int error_code, StringRef message) FMT_NOEXCEPT;
-
-#endif
-
-enum Color { BLACK, RED, GREEN, YELLOW, BLUE, MAGENTA, CYAN, WHITE };
-
-/**
-Formats a string and prints it to stdout using ANSI escape sequences
-to specify color (experimental).
-Example:
-PrintColored(fmt::RED, "Elapsed time: {0:.2f} seconds") << 1.23;
-*/
-void print_colored(Color c, CStringRef format, ArgList args);
-
-/**
-\rst
-Formats arguments and returns the result as a string.
-
-**Example**::
-
-std::string message = format("The answer is {}", 42);
-\endrst
-*/
-inline std::string format(CStringRef format_str, ArgList args) {
- MemoryWriter w;
- w.write(format_str, args);
- return w.str();
-}
-
-inline std::wstring format(WCStringRef format_str, ArgList args) {
- WMemoryWriter w;
- w.write(format_str, args);
- return w.str();
-}
-
-/**
-\rst
-Prints formatted data to the file *f*.
-
-**Example**::
-
-print(stderr, "Don't {}!", "panic");
-\endrst
-*/
-void print(std::FILE *f, CStringRef format_str, ArgList args);
-
-/**
-\rst
-Prints formatted data to ``stdout``.
-
-**Example**::
-
-print("Elapsed time: {0:.2f} seconds", 1.23);
-\endrst
-*/
-void print(CStringRef format_str, ArgList args);
-
-/**
-\rst
-Prints formatted data to the stream *os*.
-
-**Example**::
-
-print(cerr, "Don't {}!", "panic");
-\endrst
-*/
-void print(std::ostream &os, CStringRef format_str, ArgList args);
-
-template <typename Char>
-void printf(BasicWriter<Char> &w, BasicCStringRef<Char> format, ArgList args) {
- internal::PrintfFormatter<Char>().format(w, format, args);
-}
-
-/**
-\rst
-Formats arguments and returns the result as a string.
-
-**Example**::
-
-std::string message = fmt::sprintf("The answer is %d", 42);
-\endrst
-*/
-inline std::string sprintf(CStringRef format, ArgList args) {
- MemoryWriter w;
- printf(w, format, args);
- return w.str();
-}
-
-/**
-\rst
-Prints formatted data to the file *f*.
-
-**Example**::
-
-fmt::fprintf(stderr, "Don't %s!", "panic");
-\endrst
-*/
-int fprintf(std::FILE *f, CStringRef format, ArgList args);
-
-/**
-\rst
-Prints formatted data to ``stdout``.
-
-**Example**::
-
-fmt::printf("Elapsed time: %.2f seconds", 1.23);
-\endrst
-*/
-inline int printf(CStringRef format, ArgList args) {
- return fprintf(stdout, format, args);
-}
-
-/**
-Fast integer formatter.
-*/
-class FormatInt {
-private:
- // Buffer should be large enough to hold all digits (digits10 + 1),
- // a sign and a null character.
- enum { BUFFER_SIZE = std::numeric_limits<ULongLong>::digits10 + 3 };
- mutable char buffer_[BUFFER_SIZE];
- char *str_;
-
- // Formats value in reverse and returns the number of digits.
- char *format_decimal(ULongLong value) {
- char *buffer_end = buffer_ + BUFFER_SIZE - 1;
- while (value >= 100) {
- // Integer division is slow so do it for a group of two digits instead
- // of for every digit. The idea comes from the talk by Alexandrescu
- // "Three Optimization Tips for C++". See speed-test for a comparison.
- unsigned index = (value % 100) * 2;
- value /= 100;
- *--buffer_end = internal::Data::DIGITS[index + 1];
- *--buffer_end = internal::Data::DIGITS[index];
- }
- if (value < 10) {
- *--buffer_end = static_cast<char>('0' + value);
- return buffer_end;
- }
- unsigned index = static_cast<unsigned>(value * 2);
- *--buffer_end = internal::Data::DIGITS[index + 1];
- *--buffer_end = internal::Data::DIGITS[index];
- return buffer_end;
- }
-
- void FormatSigned(LongLong value) {
- ULongLong abs_value = static_cast<ULongLong>(value);
- bool negative = value < 0;
- if (negative)
- abs_value = 0 - abs_value;
- str_ = format_decimal(abs_value);
- if (negative)
- *--str_ = '-';
- }
-
-public:
- explicit FormatInt(int value) {
- FormatSigned(value);
- }
- explicit FormatInt(long value) {
- FormatSigned(value);
- }
- explicit FormatInt(LongLong value) {
- FormatSigned(value);
- }
- expl
<TRUNCATED>