45 lines · cpp
1//===----------------------------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8// UNSUPPORTED: c++03, c++11, c++14, c++179 10// <chrono>11// class month_weekday_last;12 13// constexpr chrono::month month() const noexcept;14// Returns: m_15 16#include <chrono>17#include <cassert>18#include <type_traits>19#include <utility>20 21#include "test_macros.h"22 23int main(int, char**)24{25 using month = std::chrono::month;26 using weekday = std::chrono::weekday;27 using weekday_last = std::chrono::weekday_last;28 using month_weekday_last = std::chrono::month_weekday_last;29 30 constexpr weekday Tuesday = std::chrono::Tuesday;31 32 ASSERT_NOEXCEPT( std::declval<const month_weekday_last>().month());33 ASSERT_SAME_TYPE(month, decltype(std::declval<const month_weekday_last>().month()));34 35 static_assert( month_weekday_last{month{}, weekday_last{Tuesday}}.month() == month{}, "");36 37 for (unsigned i = 1; i <= 50; ++i)38 {39 month_weekday_last mdl(month{i}, weekday_last{Tuesday});40 assert( static_cast<unsigned>(mdl.month()) == i);41 }42 43 return 0;44}45