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 year_month;12 13// constexpr chrono::day day() const noexcept;14// Returns: d_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 year = std::chrono::year;26 using month = std::chrono::month;27 using year_month = std::chrono::year_month;28 29 ASSERT_NOEXCEPT( std::declval<const year_month>().year());30 ASSERT_SAME_TYPE(year, decltype(std::declval<const year_month>().year()));31 32 static_assert( year_month{}.year() == year{}, "");33 34 for (int i = 1; i <= 50; ++i)35 {36 year_month ym(year{i}, month{});37 assert( static_cast<int>(ym.year()) == i);38 }39 40 return 0;41}42