71 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// <chrono>10 11// template <class Duration>12// class hh_mm_ss13//14// constexpr chrono::hours hours() const noexcept;15 16// Test values17// duration hours minutes seconds fractional18// 5000s 1 23 20 019// 5000 minutes 83 20 0 020// 123456789ms 34 17 36 789ms21// 123456789us 0 2 3 456789us22// 123456789ns 0 0 0 123456789ns23// 1000mfn 0 20 9 0.6 (6000/10000)24// 10000mfn 3 21 36 025 26 27#include <chrono>28#include <cassert>29#include <ratio>30#include <utility>31 32#include "test_macros.h"33 34template <typename Duration>35constexpr long check_hours(Duration d)36{37 using HMS = std::chrono::hh_mm_ss<Duration>;38 ASSERT_SAME_TYPE(std::chrono::hours, decltype(std::declval<HMS>().hours()));39 ASSERT_NOEXCEPT( std::declval<HMS>().hours());40 return HMS(d).hours().count();41}42 43int main(int, char**)44{45 using microfortnights = std::chrono::duration<int, std::ratio<756, 625>>;46 47 static_assert( check_hours(std::chrono::minutes( 1)) == 0, "");48 static_assert( check_hours(std::chrono::minutes(-1)) == 0, "");49 50 assert( check_hours(std::chrono::seconds( 5000)) == 1);51 assert( check_hours(std::chrono::seconds(-5000)) == 1);52 assert( check_hours(std::chrono::minutes( 5000)) == 83);53 assert( check_hours(std::chrono::minutes(-5000)) == 83);54 assert( check_hours(std::chrono::hours( 11)) == 11);55 assert( check_hours(std::chrono::hours(-11)) == 11);56 57 assert( check_hours(std::chrono::milliseconds( 123456789LL)) == 34);58 assert( check_hours(std::chrono::milliseconds(-123456789LL)) == 34);59 assert( check_hours(std::chrono::microseconds( 123456789LL)) == 0);60 assert( check_hours(std::chrono::microseconds(-123456789LL)) == 0);61 assert( check_hours(std::chrono::nanoseconds( 123456789LL)) == 0);62 assert( check_hours(std::chrono::nanoseconds(-123456789LL)) == 0);63 64 assert( check_hours(microfortnights( 1000)) == 0);65 assert( check_hours(microfortnights( -1000)) == 0);66 assert( check_hours(microfortnights( 10000)) == 3);67 assert( check_hours(microfortnights(-10000)) == 3);68 69 return 0;70}71