42 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;12 13// constexpr bool ok() const noexcept;14// Returns: wd_ <= 615 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 27 ASSERT_NOEXCEPT( std::declval<const weekday>().ok());28 ASSERT_SAME_TYPE(bool, decltype(std::declval<const weekday>().ok()));29 30 static_assert( weekday{0}.ok(), "");31 static_assert( weekday{1}.ok(), "");32 static_assert( weekday{7}.ok(), ""); // 7 is transmogrified into 0 in the ctor33 static_assert(!weekday{8}.ok(), "");34 35 for (unsigned i = 0; i <= 7; ++i)36 assert(weekday{i}.ok());37 for (unsigned i = 8; i <= 255; ++i)38 assert(!weekday{i}.ok());39 40 return 0;41}42