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-exception
6//
7//===----------------------------------------------------------------------===//
8// UNSUPPORTED: c++03, c++11, c++14, c++17
9
10// <chrono>
11// class year_month_day;
12
13// constexpr chrono::day day() const noexcept;
14// Returns: wd_
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 day = std::chrono::day;
28 using year_month_day = std::chrono::year_month_day;
29
30 ASSERT_NOEXCEPT( std::declval<const year_month_day>().day());
31 ASSERT_SAME_TYPE(day, decltype(std::declval<const year_month_day>().day()));
32
33 static_assert( year_month_day{}.day() == day{}, "");
34
35 for (unsigned i = 1; i <= 50; ++i)
36 {
37 year_month_day ymd(year{1234}, month{2}, day{i});
38 assert( static_cast<unsigned>(ymd.day()) == i);
39 }
40
41 return 0;
42}
43

source code of libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/day.pass.cpp