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PR libstdc++/80478 make std::mem_fn work with noexcept functions 

PR libstdc++/80478
	* include/std/functional (_Mem_fn_traits_base): Add specializations
	for noexcept member function types.
	* testsuite/20_util/function_objects/mem_fn/80478.cc: New test.

From-SVN: r248245
This commit is contained in:
Jonathan Wakely 2017-05-18 18:32:06 +01:00 committed by Jonathan Wakely
parent 286c97f38f
commit 747217d179
3 changed files with 40 additions and 0 deletions
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7
libstdc++-v3/ChangeLog
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@ -1,3 +1,10 @@
2017-05-18 Jonathan Wakely <jwakely@redhat.com>
PR libstdc++/80478
* include/std/functional (_Mem_fn_traits_base): Add specializations
for noexcept member function types.
* testsuite/20_util/function_objects/mem_fn/80478.cc: New test.
2017-05-18 Jonathan Wakely <jwakely@redhat.com>
* doc/xml/manual/policy_data_structures.xml: Fix typo.

6
libstdc++-v3/include/std/functional
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@ -135,6 +135,12 @@ _GLIBCXX_MEM_FN_TRAITS( , true_type, true_type)
_GLIBCXX_MEM_FN_TRAITS(&, true_type, false_type)
_GLIBCXX_MEM_FN_TRAITS(&&, false_type, true_type)
#if __cplusplus > 201402L
_GLIBCXX_MEM_FN_TRAITS(noexcept, true_type, true_type)
_GLIBCXX_MEM_FN_TRAITS(& noexcept, true_type, false_type)
_GLIBCXX_MEM_FN_TRAITS(&& noexcept, false_type, true_type)
#endif
#undef _GLIBCXX_MEM_FN_TRAITS
#undef _GLIBCXX_MEM_FN_TRAITS2

27
libstdc++-v3/testsuite/20_util/function_objects/mem_fn/80478.cc Normal file
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@ -0,0 +1,27 @@
// Copyright (C) 2017 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
// { dg-options "-std=gnu++17" }
// { dg-do compile { target c++1z } }
#include <functional>
struct X {
void f() noexcept { }
};
auto f = std::mem_fn(&X::f);