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43 lines
887 B
C++
43 lines
887 B
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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// <chrono>
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// duration
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// constexpr duration& operator--(); // constexpr in C++17
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#include <chrono>
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#include <cassert>
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#include "test_macros.h"
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#if TEST_STD_VER > 14
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constexpr bool test_constexpr()
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{
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std::chrono::hours h(3);
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return (--h).count() == 2;
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}
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#endif
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int main(int, char**)
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{
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{
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std::chrono::hours h(3);
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std::chrono::hours& href = --h;
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assert(&href == &h);
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assert(h.count() == 2);
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}
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#if TEST_STD_VER > 14
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static_assert(test_constexpr(), "");
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#endif
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return 0;
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}
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