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 9// UNSUPPORTED: c++03, c++1110// <chrono>11 12#include <chrono>13#include <type_traits>14#include <cassert>15 16#include "test_macros.h"17 18int main(int, char**)19{20 using namespace std::literals::chrono_literals;21 22// Make sure the types are right23 static_assert ( std::is_same<decltype( 3h ), std::chrono::hours>::value, "" );24 static_assert ( std::is_same<decltype( 3min ), std::chrono::minutes>::value, "" );25 static_assert ( std::is_same<decltype( 3s ), std::chrono::seconds>::value, "" );26 static_assert ( std::is_same<decltype( 3ms ), std::chrono::milliseconds>::value, "" );27 static_assert ( std::is_same<decltype( 3us ), std::chrono::microseconds>::value, "" );28 static_assert ( std::is_same<decltype( 3ns ), std::chrono::nanoseconds>::value, "" );29 30 std::chrono::hours h = 4h;31 assert ( h == std::chrono::hours(4));32 auto h2 = 4.0h;33 assert ( h == h2 );34 35 std::chrono::minutes min = 36min;36 assert ( min == std::chrono::minutes(36));37 auto min2 = 36.0min;38 assert ( min == min2 );39 40 std::chrono::seconds s = 24s;41 assert ( s == std::chrono::seconds(24));42 auto s2 = 24.0s;43 assert ( s == s2 );44 45 std::chrono::milliseconds ms = 247ms;46 assert ( ms == std::chrono::milliseconds(247));47 auto ms2 = 247.0ms;48 assert ( ms == ms2 );49 50 std::chrono::microseconds us = 867us;51 assert ( us == std::chrono::microseconds(867));52 auto us2 = 867.0us;53 assert ( us == us2 );54 55 std::chrono::nanoseconds ns = 645ns;56 assert ( ns == std::chrono::nanoseconds(645));57 auto ns2 = 645.ns;58 assert ( ns == ns2 );59 60 61 return 0;62}63