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