| /* | |
| * Copyright 2016 Google Inc. | |
| * | |
| * Use of this source code is governed by a BSD-style license that can be | |
| * found in the LICENSE file. | |
| */ | |
| #ifndef SkExchange_DEFINED | |
| #define SkExchange_DEFINED | |
| #include <utility> | |
| namespace skstd { | |
| // std::exchange is in C++14 | |
| template<typename T, typename U = T> | |
| inline static T exchange(T& obj, U&& new_val) { | |
| T old_val = std::move(obj); | |
| obj = std::forward<U>(new_val); | |
| return old_val; | |
| } | |
| } | |
| #endif // SkExchange_DEFINED |