62 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 month_weekday_last(const chrono::month& m,14// const chrono::weekday_last& wdl) noexcept;15//16// Effects: Constructs an object of type month_weekday_last by17// initializing m_ with m, and wdl_ with wdl.18//19// constexpr chrono::month month() const noexcept;20// constexpr chrono::weekday_last weekday_last() const noexcept;21// constexpr bool ok() const noexcept;22 23 24#include <chrono>25#include <type_traits>26#include <cassert>27 28#include "test_macros.h"29 30int main(int, char**)31{32 using month = std::chrono::month;33 using weekday = std::chrono::weekday;34 using weekday_last = std::chrono::weekday_last;35 using month_weekday_last = std::chrono::month_weekday_last;36 37 constexpr month January = std::chrono::January;38 constexpr weekday Tuesday = std::chrono::Tuesday;39 40 ASSERT_NOEXCEPT(month_weekday_last{January, weekday_last{Tuesday}});41 42 // bad month43 constexpr month_weekday_last mwdl1{month{}, weekday_last{Tuesday}};44 static_assert( mwdl1.month() == month{}, "");45 static_assert( mwdl1.weekday_last() == weekday_last{Tuesday}, "");46 static_assert(!mwdl1.ok(), "");47 48 // bad weekday_last49 constexpr month_weekday_last mwdl2{January, weekday_last{weekday{16}}};50 static_assert( mwdl2.month() == January, "");51 static_assert( mwdl2.weekday_last() == weekday_last{weekday{16}}, "");52 static_assert(!mwdl2.ok(), "");53 54 // Good month and weekday_last55 constexpr month_weekday_last mwdl3{January, weekday_last{weekday{4}}};56 static_assert( mwdl3.month() == January, "");57 static_assert( mwdl3.weekday_last() == weekday_last{weekday{4}}, "");58 static_assert( mwdl3.ok(), "");59 60 return 0;61}62