40 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 weekday_last;12 13// constexpr bool ok() const noexcept;14// Returns: wd_.ok()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 weekday = std::chrono::weekday;26 using weekday_last = std::chrono::weekday_last;27 28 ASSERT_NOEXCEPT( std::declval<const weekday_last>().ok());29 ASSERT_SAME_TYPE(bool, decltype(std::declval<const weekday_last>().ok()));30 31 static_assert( weekday_last{weekday{0}}.ok(), "");32 static_assert( weekday_last{weekday{1}}.ok(), "");33 static_assert(!weekday_last{weekday{8}}.ok(), "");34 35 for (unsigned i = 0; i <= 255; ++i)36 assert(weekday_last{weekday{i}}.ok() == weekday{i}.ok());37 38 return 0;39}40