[jira] Updated: (STDCXX-512) std::valarray computed assignment operators don't compile with a user-defined class

["Martin Sebor (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/STDCXX-512?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Martin Sebor updated STDCXX-512:
--------------------------------

    Remaining Estimate: 4h
     Original Estimate: 4h

> std::valarray computed assignment operators don't compile with a user-defined class
> -----------------------------------------------------------------------------------
>
>                 Key: STDCXX-512
>                 URL: https://issues.apache.org/jira/browse/STDCXX-512
>             Project: C++ Standard Library
>          Issue Type: Bug
>          Components: 26. Numerics
>    Affects Versions: 4.1.2, 4.1.3, 4.1.4
>            Reporter: Martin Sebor
>            Assignee: Martin Sebor
>            Priority: Minor
>             Fix For: 4.2.1
>
>   Original Estimate: 4h
>  Remaining Estimate: 4h
>
> The program below fails to compile because the valarray computed assignment operators make use of operator@ (T, T) instead of the corresponding computed assignment operators defined by T (i.e., T::operator@(T)).
> $ cat u.cpp && make u
> #include <valarray>
> struct Value {
>     Value& operator*= (const Value&) { return *this; }
>     Value& operator/= (const Value&) { return *this; }
>     Value& operator+= (const Value&) { return *this; }
>     Value& operator-= (const Value&) { return *this; }
>     Value& operator%= (const Value&) { return *this; }
>     Value& operator^= (const Value&) { return *this; }
>     Value& operator&= (const Value&) { return *this; }
>     Value& operator|= (const Value&) { return *this; }
>     Value& operator<<= (const Value&) { return *this; }
>     Value& operator>>= (const Value&) { return *this; }
> };
> int main ()
> {
>     std::valarray<Value> val;
>     val *= val;
>     val /= val;
>     val += val;
>     val -= val;
>     val %= val;
>     val ^= val;
>     val &= val;
>     val |= val;
>     val <<= val;
>     val >>= val;
> }
> gcc -c -I/amd/devco/sebor/stdcxx-4.1.3/include/ansi -D_RWSTDDEBUG   -pthread -D_RWSTD_USE_CONFIG -I/build/sebor/stdcxx-4.1.3-gcc-3.4.3_6-15D/include -I/amd/devco/sebor/stdcxx-4.1.3/include -I/amd/devco/sebor/stdcxx-4.1.3/examples/include  -pedantic -nostdinc++ -g  -m64 -Wall -W -Wcast-qual -Winline -Wshadow -Wwrite-strings -Wno-long-long -Wcast-align  u.cpp
> /amd/devco/sebor/stdcxx-4.1.3/include/functional: In member function `typename std::binary_function<_TypeT, _TypeT, _TypeT>::result_type std::multiplies<_TypeT>::operator()(const typename std::binary_function<_TypeT, _TypeT, _TypeT>::first_argument_type&, const typename std::binary_function<_TypeT, _TypeT, _TypeT>::second_argument_type&) const [with _TypeT = Value]':
> /amd/devco/sebor/stdcxx-4.1.3/include/algorithm:353:   instantiated from `_OutputIter std::transform(_InputIter1, _InputIter1, _InputIter2, _OutputIter, _BinaryOperation) [with _InputIter1 = Value*, _InputIter2 = const Value*, _OutputIter = Value*, _BinaryOperation = std::multiplies<Value>]'
> /amd/devco/sebor/stdcxx-4.1.3/include/valarray:363:   instantiated from `std::valarray<_TypeT>& std::valarray<_TypeT>::operator*=(const std::valarray<_TypeT>&) [with _TypeT = Value]'
> u.cpp:20:   instantiated from here
> /amd/devco/sebor/stdcxx-4.1.3/include/functional:83: error: no match for 'operator*' in '__x * __y'
> /amd/devco/sebor/stdcxx-4.1.3/include/functional: In member function `typename std::binary_function<_TypeT, _TypeT, _TypeT>::result_type std::divides<_TypeT>::operator()(const typename std::binary_function<_TypeT, _TypeT, _TypeT>::first_argument_type&, const typename std::binary_function<_TypeT, _TypeT, _TypeT>::second_argument_type&) const [with _TypeT = Value]':
> /amd/devco/sebor/stdcxx-4.1.3/include/algorithm:353:   instantiated from `_OutputIter std::transform(_InputIter1, _InputIter1, _InputIter2, _OutputIter, _BinaryOperation) [with _InputIter1 = Value*, _InputIter2 = const Value*, _OutputIter = Value*, _BinaryOperation = std::divides<Value>]'
> /amd/devco/sebor/stdcxx-4.1.3/include/valarray:376:   instantiated from `std::valarray<_TypeT>& std::valarray<_TypeT>::operator/=(const std::valarray<_TypeT>&) [with _TypeT = Value]'
> u.cpp:21:   instantiated from here
> /amd/devco/sebor/stdcxx-4.1.3/include/functional:96: error: no match for 'operator/' in '__x / __y'
> /amd/devco/sebor/stdcxx-4.1.3/include/functional: In member function `typename std::binary_function<_TypeT, _TypeT, _TypeT>::result_type std::plus<_TypeT>::operator()(const typename std::binary_function<_TypeT, _TypeT, _TypeT>::first_argument_type&, const typename std::binary_function<_TypeT, _TypeT, _TypeT>::second_argument_type&) const [with _TypeT = Value]':
> /amd/devco/sebor/stdcxx-4.1.3/include/algorithm:353:   instantiated from `_OutputIter std::transform(_InputIter1, _InputIter1, _InputIter2, _OutputIter, _BinaryOperation) [with _InputIter1 = Value*, _InputIter2 = const Value*, _OutputIter = Value*, _BinaryOperation = std::plus<Value>]'
> /amd/devco/sebor/stdcxx-4.1.3/include/valarray:389:   instantiated from `std::valarray<_TypeT>& std::valarray<_TypeT>::operator+=(const std::valarray<_TypeT>&) [with _TypeT = Value]'
> u.cpp:22:   instantiated from here
> /amd/devco/sebor/stdcxx-4.1.3/include/functional:57: error: no match for 'operator+' in '__x + __y'
> /amd/devco/sebor/stdcxx-4.1.3/include/functional: In member function `typename std::binary_function<_TypeT, _TypeT, _TypeT>::result_type std::minus<_TypeT>::operator()(const typename std::binary_function<_TypeT, _TypeT, _TypeT>::first_argument_type&, const typename std::binary_function<_TypeT, _TypeT, _TypeT>::second_argument_type&) const [with _TypeT = Value]':
> /amd/devco/sebor/stdcxx-4.1.3/include/algorithm:353:   instantiated from `_OutputIter std::transform(_InputIter1, _InputIter1, _InputIter2, _OutputIter, _BinaryOperation) [with _InputIter1 = Value*, _InputIter2 = const Value*, _OutputIter = Value*, _BinaryOperation = std::minus<Value>]'
> /amd/devco/sebor/stdcxx-4.1.3/include/valarray:402:   instantiated from `std::valarray<_TypeT>& std::valarray<_TypeT>::operator-=(const std::valarray<_TypeT>&) [with _TypeT = Value]'
> u.cpp:23:   instantiated from here
> /amd/devco/sebor/stdcxx-4.1.3/include/functional:70: error: no match for 'operator-' in '__x - __y'
> /amd/devco/sebor/stdcxx-4.1.3/include/functional: In member function `typename std::binary_function<_TypeT, _TypeT, _TypeT>::result_type std::modulus<_TypeT>::operator()(const typename std::binary_function<_TypeT, _TypeT, _TypeT>::first_argument_type&, const typename std::binary_function<_TypeT, _TypeT, _TypeT>::second_argument_type&) const [with _TypeT = Value]':
> /amd/devco/sebor/stdcxx-4.1.3/include/algorithm:353:   instantiated from `_OutputIter std::transform(_InputIter1, _InputIter1, _InputIter2, _OutputIter, _BinaryOperation) [with _InputIter1 = Value*, _InputIter2 = const Value*, _OutputIter = Value*, _BinaryOperation = std::modulus<Value>]'
> /amd/devco/sebor/stdcxx-4.1.3/include/valarray:415:   instantiated from `std::valarray<_TypeT>& std::valarray<_TypeT>::operator%=(const std::valarray<_TypeT>&) [with _TypeT = Value]'
> u.cpp:24:   instantiated from here
> /amd/devco/sebor/stdcxx-4.1.3/include/functional:109: error: no match for 'operator%' in '__x % __y'
> /amd/devco/sebor/stdcxx-4.1.3/include/functional: In member function `typename std::binary_function<_TypeT, _TypeT, _TypeT>::result_type __rw::exclusive_or<_TypeT>::operator()(const typename std::binary_function<_TypeT, _TypeT, _TypeT>::first_argument_type&, const typename std::binary_function<_TypeT, _TypeT, _TypeT>::second_argument_type&) const [with _TypeT = Value]':
> /amd/devco/sebor/stdcxx-4.1.3/include/algorithm:353:   instantiated from `_OutputIter std::transform(_InputIter1, _InputIter1, _InputIter2, _OutputIter, _BinaryOperation) [with _InputIter1 = Value*, _InputIter2 = const Value*, _OutputIter = Value*, _BinaryOperation = __rw::exclusive_or<Value>]'
> /amd/devco/sebor/stdcxx-4.1.3/include/valarray:428:   instantiated from `std::valarray<_TypeT>& std::valarray<_TypeT>::operator^=(const std::valarray<_TypeT>&) [with _TypeT = Value]'
> u.cpp:25:   instantiated from here
> /amd/devco/sebor/stdcxx-4.1.3/include/functional:732: error: no match for 'operator^' in '__x ^ __y'
> /amd/devco/sebor/stdcxx-4.1.3/include/functional: In member function `typename std::binary_function<_TypeT, _TypeT, _TypeT>::result_type __rw::bitwise_and<_TypeT>::operator()(const typename std::binary_function<_TypeT, _TypeT, _TypeT>::first_argument_type&, const typename std::binary_function<_TypeT, _TypeT, _TypeT>::second_argument_type&) const [with _TypeT = Value]':
> /amd/devco/sebor/stdcxx-4.1.3/include/algorithm:353:   instantiated from `_OutputIter std::transform(_InputIter1, _InputIter1, _InputIter2, _OutputIter, _BinaryOperation) [with _InputIter1 = Value*, _InputIter2 = const Value*, _OutputIter = Value*, _BinaryOperation = __rw::bitwise_and<Value>]'
> /amd/devco/sebor/stdcxx-4.1.3/include/valarray:441:   instantiated from `std::valarray<_TypeT>& std::valarray<_TypeT>::operator&=(const std::valarray<_TypeT>&) [with _TypeT = Value]'
> u.cpp:26:   instantiated from here
> /amd/devco/sebor/stdcxx-4.1.3/include/functional:719: error: no match for 'operator&' in '__x & __y'
> /amd/devco/sebor/stdcxx-4.1.3/include/functional: In member function `typename std::binary_function<_TypeT, _TypeT, _TypeT>::result_type __rw::bitwise_or<_TypeT>::operator()(const typename std::binary_function<_TypeT, _TypeT, _TypeT>::first_argument_type&, const typename std::binary_function<_TypeT, _TypeT, _TypeT>::second_argument_type&) const [with _TypeT = Value]':
> /amd/devco/sebor/stdcxx-4.1.3/include/algorithm:353:   instantiated from `_OutputIter std::transform(_InputIter1, _InputIter1, _InputIter2, _OutputIter, _BinaryOperation) [with _InputIter1 = Value*, _InputIter2 = const Value*, _OutputIter = Value*, _BinaryOperation = __rw::bitwise_or<Value>]'
> /amd/devco/sebor/stdcxx-4.1.3/include/valarray:454:   instantiated from `std::valarray<_TypeT>& std::valarray<_TypeT>::operator|=(const std::valarray<_TypeT>&) [with _TypeT = Value]'
> u.cpp:27:   instantiated from here
> /amd/devco/sebor/stdcxx-4.1.3/include/functional:706: error: no match for 'operator|' in '__x | __y'
> /amd/devco/sebor/stdcxx-4.1.3/include/functional: In member function `typename std::binary_function<_TypeT, _TypeT, _TypeT>::result_type __rw::shift_left<_TypeT>::operator()(const typename std::binary_function<_TypeT, _TypeT, _TypeT>::first_argument_type&, const typename std::binary_function<_TypeT, _TypeT, _TypeT>::second_argument_type&) const [with _TypeT = Value]':
> /amd/devco/sebor/stdcxx-4.1.3/include/algorithm:353:   instantiated from `_OutputIter std::transform(_InputIter1, _InputIter1, _InputIter2, _OutputIter, _BinaryOperation) [with _InputIter1 = Value*, _InputIter2 = const Value*, _OutputIter = Value*, _BinaryOperation = __rw::shift_left<Value>]'
> /amd/devco/sebor/stdcxx-4.1.3/include/valarray:467:   instantiated from `std::valarray<_TypeT>& std::valarray<_TypeT>::operator<<=(const std::valarray<_TypeT>&) [with _TypeT = Value]'
> u.cpp:28:   instantiated from here
> /amd/devco/sebor/stdcxx-4.1.3/include/functional:745: error: no match for 'operator<<' in '__x << __y'
> /amd/devco/sebor/stdcxx-4.1.3/include/functional: In member function `typename std::binary_function<_TypeT, _TypeT, _TypeT>::result_type __rw::shift_right<_TypeT>::operator()(const typename std::binary_function<_TypeT, _TypeT, _TypeT>::first_argument_type&, const typename std::binary_function<_TypeT, _TypeT, _TypeT>::second_argument_type&) const [with _TypeT = Value]':
> /amd/devco/sebor/stdcxx-4.1.3/include/algorithm:353:   instantiated from `_OutputIter std::transform(_InputIter1, _InputIter1, _InputIter2, _OutputIter, _BinaryOperation) [with _InputIter1 = Value*, _InputIter2 = const Value*, _OutputIter = Value*, _BinaryOperation = __rw::shift_right<Value>]'
> /amd/devco/sebor/stdcxx-4.1.3/include/valarray:480:   instantiated from `std::valarray<_TypeT>& std::valarray<_TypeT>::operator>>=(const std::valarray<_TypeT>&) [with _TypeT = Value]'
> u.cpp:29:   instantiated from here
> /amd/devco/sebor/stdcxx-4.1.3/include/functional:758: error: no match for 'operator>>' in '__x >> __y'
> make: *** [u.o] Error 1

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