47 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::weekday_last weekday_last() const noexcept;14// Returns: wdl_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 month January = std::chrono::January;31 constexpr weekday Tuesday = std::chrono::Tuesday;32 constexpr weekday_last lastTuesday = weekday_last{Tuesday};33 34 ASSERT_NOEXCEPT( std::declval<const month_weekday_last>().weekday_last());35 ASSERT_SAME_TYPE(weekday_last, decltype(std::declval<const month_weekday_last>().weekday_last()));36 37 static_assert( month_weekday_last{month{}, lastTuesday}.weekday_last() == lastTuesday, "");38 39 for (unsigned i = 1; i <= 50; ++i)40 {41 month_weekday_last mdl(January, weekday_last{weekday{i}});42 assert( mdl.weekday_last().weekday().c_encoding() == (i == 7 ? 0 : i));43 }44 45 return 0;46}47