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libstdc++: Make comparison category comparisons noexcept (PR 94565) 

PR libstdc++/94565
	* libsupc++/compare (__unspec): Add noexcept-specifier to constructor.
	* testsuite/18_support/comparisons/categories/94565.cc: New test.
This commit is contained in:
Jonathan Wakely 2020-04-14 11:23:34 +01:00
parent 7eee265e6b
commit 597601aa7a
3 changed files with 73 additions and 1 deletions
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6
libstdc++-v3/ChangeLog
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@ -3,6 +3,12 @@
* include/std/coroutine: Update coroutines builtin define,
per n4861.
2020-04-14 Jonathan Wakely <jwakely@redhat.com>
PR libstdc++/94565
* libsupc++/compare (__unspec): Add noexcept-specifier to constructor.
* testsuite/18_support/comparisons/categories/94565.cc: New test.
2020-04-09 Jonathan Wakely <jwakely@redhat.com>
* libsupc++/compare (compare_three_way): Fix noexcept-specifier.

2
libstdc++-v3/libsupc++/compare
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@ -56,7 +56,7 @@ namespace std
struct __unspec
{
constexpr __unspec(__unspec*) { }
constexpr __unspec(__unspec*) noexcept { }
};
}

66
libstdc++-v3/testsuite/18_support/comparisons/categories/94565.cc Normal file
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@ -0,0 +1,66 @@
// Copyright (C) 2020 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++2a" }
// { dg-do compile { target c++2a } }
#include <compare>
static_assert(noexcept(std::partial_ordering::less == 0));
static_assert(noexcept(std::partial_ordering::less != 0));
static_assert(noexcept(std::partial_ordering::less < 0));
static_assert(noexcept(std::partial_ordering::less > 0));
static_assert(noexcept(std::partial_ordering::less <= 0));
static_assert(noexcept(std::partial_ordering::less >= 0));
static_assert(noexcept(std::partial_ordering::less <=> 0));
static_assert(noexcept(0 == std::partial_ordering::less));
static_assert(noexcept(0 != std::partial_ordering::less));
static_assert(noexcept(0 < std::partial_ordering::less));
static_assert(noexcept(0 > std::partial_ordering::less));
static_assert(noexcept(0 <= std::partial_ordering::less));
static_assert(noexcept(0 >= std::partial_ordering::less));
static_assert(noexcept(0 <=> std::partial_ordering::less));
static_assert(noexcept(std::weak_ordering::less == 0));
static_assert(noexcept(std::weak_ordering::less != 0));
static_assert(noexcept(std::weak_ordering::less < 0));
static_assert(noexcept(std::weak_ordering::less > 0));
static_assert(noexcept(std::weak_ordering::less <= 0));
static_assert(noexcept(std::weak_ordering::less >= 0));
static_assert(noexcept(std::weak_ordering::less <=> 0));
static_assert(noexcept(0 == std::weak_ordering::less));
static_assert(noexcept(0 != std::weak_ordering::less));
static_assert(noexcept(0 < std::weak_ordering::less));
static_assert(noexcept(0 > std::weak_ordering::less));
static_assert(noexcept(0 <= std::weak_ordering::less));
static_assert(noexcept(0 >= std::weak_ordering::less));
static_assert(noexcept(0 <=> std::weak_ordering::less));
static_assert(noexcept(std::strong_ordering::less == 0));
static_assert(noexcept(std::strong_ordering::less != 0));
static_assert(noexcept(std::strong_ordering::less < 0));
static_assert(noexcept(std::strong_ordering::less > 0));
static_assert(noexcept(std::strong_ordering::less <= 0));
static_assert(noexcept(std::strong_ordering::less >= 0));
static_assert(noexcept(std::strong_ordering::less <=> 0));
static_assert(noexcept(0 == std::strong_ordering::less));
static_assert(noexcept(0 != std::strong_ordering::less));
static_assert(noexcept(0 < std::strong_ordering::less));
static_assert(noexcept(0 > std::strong_ordering::less));
static_assert(noexcept(0 <= std::strong_ordering::less));
static_assert(noexcept(0 >= std::strong_ordering::less));
static_assert(noexcept(0 <=> std::strong_ordering::less));