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libstdc++: Fix std::stack deduction guide

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libstdc++-v3/ChangeLog:

	* include/bits/stl_stack.h (stack(Iterator, Iterator)): Remove
	non-deducible template parameter from deduction guide.
	* testsuite/23_containers/stack/deduction.cc: Check new C++23
	deduction guides.
This commit is contained in:
Jonathan Wakely 2021-10-19 11:38:26 +01:00
parent 82b2e4f8cf
commit c4ecb11e4f
2 changed files with 15 additions and 1 deletions
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2
libstdc++-v3/include/bits/stl_stack.h
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@ -322,7 +322,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
-> stack<typename _Container::value_type, _Container>; -> stack<typename _Container::value_type, _Container>;
#ifdef __cpp_lib_adaptor_iterator_pair_constructor #ifdef __cpp_lib_adaptor_iterator_pair_constructor
template<typename _InputIterator, typename _Allocator, template<typename _InputIterator,
typename _ValT typename _ValT
= typename iterator_traits<_InputIterator>::value_type, = typename iterator_traits<_InputIterator>::value_type,
typename = _RequireInputIter<_InputIterator>> typename = _RequireInputIter<_InputIterator>>

14
libstdc++-v3/testsuite/23_containers/stack/deduction.cc
View File

@ -87,3 +87,17 @@ test02()
std::stack s8(std::move(l), l.get_allocator()); std::stack s8(std::move(l), l.get_allocator());
check_type<std::stack<long, std::list<long>>>(s8); check_type<std::stack<long, std::list<long>>>(s8);
} }
#if __cpp_lib_adaptor_iterator_pair_constructor
void
test03()
{
std::list<long> l;
std::stack s1(l.begin(), l.end());
check_type<std::stack<long>>(s1);
std::stack s2(l.begin(), l.end(), std::allocator<long>());
check_type<std::stack<long>>(s1);
}
#endif