1f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant//===----------------------------------------------------------------------===// 2f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant// 3f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant// The LLVM Compiler Infrastructure 4f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant// 5f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant// This file is dual licensed under the MIT and the University of Illinois Open 6f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant// Source Licenses. See LICENSE.TXT for details. 7f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant// 8f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant//===----------------------------------------------------------------------===// 9f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant 10f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant// <chrono> 11f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant 12f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant#include <chrono> 13f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant#include <type_traits> 14f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant#include <cassert> 15f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant 16f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnantint main() 17f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant{ 18f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant#if _LIBCPP_STD_VER > 11 19f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant using namespace std::literals::chrono_literals; 20f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant 21f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant// Make sure the types are right 22f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant static_assert ( std::is_same<decltype( 3h ), std::chrono::hours>::value, "" ); 23f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant static_assert ( std::is_same<decltype( 3min ), std::chrono::minutes>::value, "" ); 24f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant static_assert ( std::is_same<decltype( 3s ), std::chrono::seconds>::value, "" ); 25f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant static_assert ( std::is_same<decltype( 3ms ), std::chrono::milliseconds>::value, "" ); 26f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant static_assert ( std::is_same<decltype( 3us ), std::chrono::microseconds>::value, "" ); 27f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant static_assert ( std::is_same<decltype( 3ns ), std::chrono::nanoseconds>::value, "" ); 28f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant 29f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant std::chrono::hours h = 4h; 30f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant assert ( h == std::chrono::hours(4)); 31f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant auto h2 = 4.0h; 32f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant assert ( h == h2 ); 33f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant 34f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant std::chrono::minutes min = 36min; 35f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant assert ( min == std::chrono::minutes(36)); 36f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant auto min2 = 36.0min; 37f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant assert ( min == min2 ); 38f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant 39f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant std::chrono::seconds s = 24s; 40f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant assert ( s == std::chrono::seconds(24)); 41f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant auto s2 = 24.0s; 42f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant assert ( s == s2 ); 43f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant 44f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant std::chrono::milliseconds ms = 247ms; 45f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant assert ( ms == std::chrono::milliseconds(247)); 46f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant auto ms2 = 247.0ms; 47f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant assert ( ms == ms2 ); 48f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant 49f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant std::chrono::microseconds us = 867us; 50f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant assert ( us == std::chrono::microseconds(867)); 51f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant auto us2 = 867.0us; 52f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant assert ( us == us2 ); 53f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant 54f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant std::chrono::nanoseconds ns = 645ns; 55f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant assert ( ns == std::chrono::nanoseconds(645)); 56f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant auto ns2 = 645.ns; 57f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant assert ( ns == ns2 ); 58f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant#endif 59f68b46f0c90f3205749eeaae8ebb2dd9ec3138f9Howard Hinnant} 60