| 1 | //===----------------------------------------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | // UNSUPPORTED: c++03, c++11, c++14, c++17 |
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| 9 | |
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| 10 | // <chrono> |
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| 11 | // class year_month_day_last; |
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| 12 | |
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| 13 | // constexpr operator local_days() const noexcept; |
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| 14 | // Returns: local_days{sys_days{*this}.time_since_epoch()}. |
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| 15 | |
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| 16 | #include <chrono> |
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| 17 | #include <cassert> |
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| 18 | #include <type_traits> |
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| 19 | #include <utility> |
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| 20 | |
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| 21 | #include "test_macros.h" |
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| 22 | |
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| 23 | int main(int, char**) |
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| 24 | { |
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| 25 | using year = std::chrono::year; |
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| 26 | using month_day_last = std::chrono::month_day_last; |
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| 27 | using year_month_day_last = std::chrono::year_month_day_last; |
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| 28 | using local_days = std::chrono::local_days; |
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| 29 | using days = std::chrono::days; |
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| 30 | |
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| 31 | ASSERT_NOEXCEPT( static_cast<local_days>(std::declval<const year_month_day_last>())); |
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| 32 | ASSERT_SAME_TYPE(local_days, decltype(static_cast<local_days>(std::declval<const year_month_day_last>()))); |
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| 33 | |
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| 34 | { // Last day in Jan 1970 was the 31st |
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| 35 | constexpr year_month_day_last ymdl{year{1970}, month_day_last{std::chrono::January}}; |
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| 36 | constexpr local_days sd{ymdl}; |
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| 37 | |
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| 38 | static_assert(sd.time_since_epoch() == days{30}, "" ); |
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| 39 | } |
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| 40 | |
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| 41 | { |
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| 42 | constexpr year_month_day_last ymdl{year{2000}, month_day_last{std::chrono::January}}; |
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| 43 | constexpr local_days sd{ymdl}; |
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| 44 | |
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| 45 | static_assert(sd.time_since_epoch() == days{10957+30}, "" ); |
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| 46 | } |
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| 47 | |
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| 48 | { |
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| 49 | constexpr year_month_day_last ymdl{year{1940}, month_day_last{std::chrono::January}}; |
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| 50 | constexpr local_days sd{ymdl}; |
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| 51 | |
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| 52 | static_assert(sd.time_since_epoch() == days{-10957+29}, "" ); |
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| 53 | } |
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| 54 | |
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| 55 | { |
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| 56 | year_month_day_last ymdl{year{1939}, month_day_last{std::chrono::November}}; |
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| 57 | local_days sd{ymdl}; |
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| 58 | |
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| 59 | assert(sd.time_since_epoch() == days{-(10957+33)}); |
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| 60 | } |
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| 61 | |
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| 62 | return 0; |
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| 63 | } |
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| 64 | |
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