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54 lines
1.8 KiB
C++
54 lines
1.8 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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// class month_weekday_last;
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// constexpr bool ok() const noexcept;
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// Returns: m_.ok() && wdl_.ok().
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#include <chrono>
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#include <type_traits>
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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 month = std::chrono::month;
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using weekday = std::chrono::weekday;
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using weekday_last = std::chrono::weekday_last;
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using month_weekday_last = std::chrono::month_weekday_last;
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constexpr month January = std::chrono::January;
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constexpr weekday Tuesday = std::chrono::Tuesday;
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constexpr weekday_last lastTuesday = weekday_last{Tuesday};
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ASSERT_NOEXCEPT( std::declval<const month_weekday_last>().ok());
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ASSERT_SAME_TYPE(bool, decltype(std::declval<const month_weekday_last>().ok()));
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static_assert(!month_weekday_last{month{}, lastTuesday}.ok(), ""); // Bad month
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static_assert(!month_weekday_last{January, weekday_last{weekday{12}}}.ok(), ""); // Bad month
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static_assert( month_weekday_last{January, lastTuesday}.ok(), ""); // Both OK
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for (unsigned i = 0; i <= 50; ++i)
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{
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month_weekday_last mwdl{month{i}, lastTuesday};
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assert( mwdl.ok() == month{i}.ok());
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}
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for (unsigned i = 0; i <= 50; ++i)
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{
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month_weekday_last mwdl{January, weekday_last{weekday{i}}};
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assert( mwdl.ok() == weekday_last{weekday{i}}.ok());
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}
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return 0;
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}
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