53 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// weekday() = default;14// explicit constexpr weekday(unsigned wd) noexcept;15// constexpr weekday(const sys_days& dp) noexcept;16// explicit constexpr weekday(const local_days& dp) noexcept;17//18// unsigned c_encoding() const noexcept;19 20// Effects: Constructs an object of type weekday by initializing wd_ with wd == 7 ? 0 : wd21// The value held is unspecified if wd is not in the range [0, 255].22 23#include <chrono>24#include <type_traits>25#include <cassert>26 27#include "test_macros.h"28 29int main(int, char**)30{31 using weekday = std::chrono::weekday;32 33 ASSERT_NOEXCEPT(weekday{});34 ASSERT_NOEXCEPT(weekday(1));35 ASSERT_NOEXCEPT(weekday(1).c_encoding());36 37 constexpr weekday m0{};38 static_assert(m0.c_encoding() == 0, "");39 40 constexpr weekday m1{1};41 static_assert(m1.c_encoding() == 1, "");42 43 for (unsigned i = 0; i <= 255; ++i)44 {45 weekday m(i);46 assert(m.c_encoding() == (i == 7 ? 0 : i));47 }48 49 // TODO - sys_days and local_days ctor tests50 51 return 0;52}53