52 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_indexed;12 13// constexpr bool ok() const noexcept;14// Returns: wd_.ok() && 1 <= index_ && index_ <= 515 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_indexed = std::chrono::weekday_indexed;27 28 ASSERT_NOEXCEPT( std::declval<const weekday_indexed>().ok());29 ASSERT_SAME_TYPE(bool, decltype(std::declval<const weekday_indexed>().ok()));30 31 static_assert(!weekday_indexed{}.ok(), "");32 static_assert( weekday_indexed{std::chrono::Sunday, 2}.ok(), "");33 34 assert(!(weekday_indexed(std::chrono::Tuesday, 0).ok()));35 for (unsigned i = 1; i <= 5; ++i)36 {37 weekday_indexed wdi(std::chrono::Tuesday, i);38 assert( wdi.ok());39 }40 41 for (unsigned i = 6; i <= 20; ++i)42 {43 weekday_indexed wdi(std::chrono::Tuesday, i);44 assert(!wdi.ok());45 }46 47 // Not a valid weekday48 assert(!(weekday_indexed(weekday{9U}, 1).ok()));49 50 return 0;51}52