| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| // UNSUPPORTED: c++98, c++03, c++11, c++14, c++17 |
| |
| // <chrono> |
| // class year_month_day; |
| |
| // explicit constexpr year_month_day(const local_days& dp) noexcept; |
| // |
| // |
| // Effects: Constructs an object of type year_month_day that corresponds |
| // to the date represented by dp |
| // |
| // Remarks: Equivalent to constructing with sys_days{dp.time_since_epoch()}. |
| // |
| // constexpr chrono::year year() const noexcept; |
| // constexpr chrono::month month() const noexcept; |
| // constexpr chrono::day day() const noexcept; |
| // constexpr bool ok() const noexcept; |
| |
| #include <chrono> |
| #include <type_traits> |
| #include <cassert> |
| |
| #include "test_macros.h" |
| |
| int main(int, char**) |
| { |
| using year = std::chrono::year; |
| using day = std::chrono::day; |
| using local_days = std::chrono::local_days; |
| using days = std::chrono::days; |
| using year_month_day = std::chrono::year_month_day; |
| |
| ASSERT_NOEXCEPT(year_month_day{std::declval<local_days>()}); |
| |
| { |
| constexpr local_days sd{}; |
| constexpr year_month_day ymd{sd}; |
| |
| static_assert( ymd.ok(), ""); |
| static_assert( ymd.year() == year{1970}, ""); |
| static_assert( ymd.month() == std::chrono::January, ""); |
| static_assert( ymd.day() == day{1}, ""); |
| } |
| |
| { |
| constexpr local_days sd{days{10957+32}}; |
| constexpr year_month_day ymd{sd}; |
| |
| static_assert( ymd.ok(), ""); |
| static_assert( ymd.year() == year{2000}, ""); |
| static_assert( ymd.month() == std::chrono::February, ""); |
| static_assert( ymd.day() == day{2}, ""); |
| } |
| |
| |
| // There's one more leap day between 1/1/40 and 1/1/70 |
| // when compared to 1/1/70 -> 1/1/2000 |
| { |
| constexpr local_days sd{days{-10957}}; |
| constexpr year_month_day ymd{sd}; |
| |
| static_assert( ymd.ok(), ""); |
| static_assert( ymd.year() == year{1940}, ""); |
| static_assert( ymd.month() == std::chrono::January, ""); |
| static_assert( ymd.day() == day{2}, ""); |
| } |
| |
| { |
| local_days sd{days{-(10957+34)}}; |
| year_month_day ymd{sd}; |
| |
| assert( ymd.ok()); |
| assert( ymd.year() == year{1939}); |
| assert( ymd.month() == std::chrono::November); |
| assert( ymd.day() == day{29}); |
| } |
| |
| return 0; |
| } |