63 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 precision to_duration() const noexcept;15//16// See the table in hours.pass.cpp for correspondence between the magic values used below17 18#include <chrono>19#include <cassert>20#include <ratio>21#include <utility>22 23#include "test_macros.h"24 25template <typename Duration>26constexpr long long check_duration(Duration d)27{28 using HMS = std::chrono::hh_mm_ss<Duration>;29 ASSERT_SAME_TYPE(typename HMS::precision, decltype(std::declval<HMS>().to_duration()));30 ASSERT_NOEXCEPT( std::declval<HMS>().to_duration());31 32 return HMS(d).to_duration().count();33}34 35int main(int, char**)36{37 using microfortnights = std::chrono::duration<int, std::ratio<756, 625>>;38 39 static_assert( check_duration(std::chrono::minutes( 1)) == 60, "");40 static_assert( check_duration(std::chrono::minutes(-1)) == -60, "");41 42 assert( check_duration(std::chrono::seconds( 5000)) == 5000LL);43 assert( check_duration(std::chrono::seconds(-5000)) == -5000LL);44 assert( check_duration(std::chrono::minutes( 5000)) == 300000LL);45 assert( check_duration(std::chrono::minutes(-5000)) == -300000LL);46 assert( check_duration(std::chrono::hours( 11)) == 39600LL);47 assert( check_duration(std::chrono::hours(-11)) == -39600LL);48 49 assert( check_duration(std::chrono::milliseconds( 123456789LL)) == 123456789LL);50 assert( check_duration(std::chrono::milliseconds(-123456789LL)) == -123456789LL);51 assert( check_duration(std::chrono::microseconds( 123456789LL)) == 123456789LL);52 assert( check_duration(std::chrono::microseconds(-123456789LL)) == -123456789LL);53 assert( check_duration(std::chrono::nanoseconds( 123456789LL)) == 123456789LL);54 assert( check_duration(std::chrono::nanoseconds(-123456789LL)) == -123456789LL);55 56 assert( check_duration(microfortnights( 1000)) == 12096000);57 assert( check_duration(microfortnights( -1000)) == -12096000);58 assert( check_duration(microfortnights( 10000)) == 120960000);59 assert( check_duration(microfortnights(-10000)) == -120960000);60 61 return 0;62}63