Josh Gao | 4602adb | 2016-11-15 18:55:47 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2016 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #pragma once |
| 18 | |
| 19 | #include <chrono> |
| 20 | |
| 21 | #if defined(_WIN32) |
| 22 | // We don't have C++14 on Windows yet. |
| 23 | // Reimplement std::chrono_literals ourselves until we do. |
| 24 | |
| 25 | // Silence the following warning (which gets promoted to an error): |
| 26 | // error: literal operator suffixes not preceded by ‘_’ are reserved for future standardization |
| 27 | #pragma GCC system_header |
| 28 | |
| 29 | constexpr std::chrono::seconds operator"" s(unsigned long long s) { |
| 30 | return std::chrono::seconds(s); |
| 31 | } |
| 32 | |
| 33 | constexpr std::chrono::duration<long double> operator"" s(long double s) { |
| 34 | return std::chrono::duration<long double>(s); |
| 35 | } |
| 36 | |
| 37 | constexpr std::chrono::milliseconds operator"" ms(unsigned long long ms) { |
| 38 | return std::chrono::milliseconds(ms); |
| 39 | } |
| 40 | |
| 41 | constexpr std::chrono::duration<long double, std::milli> operator"" ms(long double ms) { |
| 42 | return std::chrono::duration<long double, std::milli>(ms); |
| 43 | } |
| 44 | #else |
| 45 | using namespace std::chrono_literals; |
| 46 | #endif |