| //===----------------------------------------------------------------------===// |
| // |
| // 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++03, c++11, c++14, c++17 |
| // <chrono> |
| |
| // template <class Duration> |
| // class hh_mm_ss |
| // |
| // constexpr precision subseconds() const noexcept; |
| // |
| // See the table in hours.pass.cpp for correspondence between the magic values used below |
| |
| #include <chrono> |
| #include <cassert> |
| |
| #include "test_macros.h" |
| |
| template <typename Duration> |
| constexpr long check_subseconds(Duration d) |
| { |
| using HMS = std::chrono::hh_mm_ss<Duration>; |
| ASSERT_SAME_TYPE(typename HMS::precision, decltype(std::declval<HMS>().subseconds())); |
| ASSERT_NOEXCEPT( std::declval<HMS>().subseconds()); |
| return HMS(d).subseconds().count(); |
| } |
| |
| int main(int, char**) |
| { |
| using microfortnights = std::chrono::duration<int, std::ratio<756, 625>>; |
| |
| static_assert( check_subseconds(std::chrono::seconds( 1)) == 0, ""); |
| static_assert( check_subseconds(std::chrono::seconds(-1)) == 0, ""); |
| |
| assert( check_subseconds(std::chrono::seconds( 5000)) == 0); |
| assert( check_subseconds(std::chrono::seconds(-5000)) == 0); |
| assert( check_subseconds(std::chrono::minutes( 5000)) == 0); |
| assert( check_subseconds(std::chrono::minutes(-5000)) == 0); |
| assert( check_subseconds(std::chrono::hours( 11)) == 0); |
| assert( check_subseconds(std::chrono::hours(-11)) == 0); |
| |
| assert( check_subseconds(std::chrono::milliseconds( 123456789LL)) == 789); |
| assert( check_subseconds(std::chrono::milliseconds(-123456789LL)) == 789); |
| assert( check_subseconds(std::chrono::microseconds( 123456789LL)) == 456789LL); |
| assert( check_subseconds(std::chrono::microseconds(-123456789LL)) == 456789LL); |
| assert( check_subseconds(std::chrono::nanoseconds( 123456789LL)) == 123456789LL); |
| assert( check_subseconds(std::chrono::nanoseconds(-123456789LL)) == 123456789LL); |
| |
| assert( check_subseconds(microfortnights( 1000)) == 6000); |
| assert( check_subseconds(microfortnights( -1000)) == 6000); |
| assert( check_subseconds(microfortnights( 10000)) == 0); |
| assert( check_subseconds(microfortnights(-10000)) == 0); |
| |
| return 0; |
| } |