a17e97e677
This was part of https://wg21.link/p0355r7, but apparently never implemented. --------- Co-authored-by: MarcoFalke <*~=`'#}+{/-|&$^_@721217.xyz> Co-authored-by: Hristo Hristov <zingam@outlook.com>
36 lines
952 B
C++
36 lines
952 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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// REQUIRES: std-at-least-c++20
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// <chrono>
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// time_point
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// constexpr time_point operator--(int);
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#include <cassert>
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#include <chrono>
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#include "test_macros.h"
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constexpr bool test() {
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using Clock = std::chrono::system_clock;
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using Duration = std::chrono::milliseconds;
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std::chrono::time_point<Clock, Duration> t1{Duration{3}};
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std::chrono::time_point<Clock, Duration> t2{t1--};
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assert(t1.time_since_epoch() == Duration{2});
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assert(t2.time_since_epoch() == Duration{3});
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return true;
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}
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int main(int, char**) {
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test();
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static_assert(test());
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return 0;
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}
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