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37 lines
1.2 KiB
C++
37 lines
1.2 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++98, c++03, c++11, c++14, c++17
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// <chrono>
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// constexpr bool is_pm(const hours& h) noexcept;
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// Returns: 12h <= h && h <= 23
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#include <chrono>
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#include <cassert>
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#include "test_macros.h"
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int main(int, char**)
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{
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using hours = std::chrono::hours;
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ASSERT_SAME_TYPE(bool, decltype(std::chrono::is_pm(std::declval<hours>())));
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ASSERT_NOEXCEPT( std::chrono::is_pm(std::declval<hours>()));
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static_assert(!std::chrono::is_pm(hours( 0)), "");
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static_assert(!std::chrono::is_pm(hours(11)), "");
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static_assert( std::chrono::is_pm(hours(12)), "");
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static_assert( std::chrono::is_pm(hours(23)), "");
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for (int i = 0; i < 12; ++i)
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assert(!std::chrono::is_pm(hours(i)));
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for (int i = 12; i < 24; ++i)
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assert( std::chrono::is_pm(hours(i)));
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return 0;
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}
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