| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // UNSUPPORTED: c++98, c++03, c++11 |
| |
| // XFAIL: gcc-7 |
| |
| // <functional> |
| |
| // equal_to, not_equal_to, less, et al. |
| |
| // Test that these types can be constructed w/o an initializer in a constexpr |
| // context. This is specifically testing gcc.gnu.org/PR83921 |
| |
| |
| #include <functional> |
| #include "test_macros.h" |
| |
| template <class T> |
| constexpr bool test_constexpr_context() { |
| std::equal_to<T> eq; |
| ((void)eq); |
| std::not_equal_to<T> neq; |
| ((void)neq); |
| std::less<T> l; |
| ((void)l); |
| std::less_equal<T> le; |
| ((void)le); |
| std::greater<T> g; |
| ((void)g); |
| std::greater_equal<T> ge; |
| ((void)ge); |
| return true; |
| } |
| |
| static_assert(test_constexpr_context<int>(), ""); |
| static_assert(test_constexpr_context<void>(), ""); |
| |
| |
| int main(int, char**) { |
| |
| |
| return 0; |
| } |