| // Copyright 2017 The Abseil Authors. | |
| // | |
| // Licensed under the Apache License, Version 2.0 (the "License"); | |
| // you may not use this file except in compliance with the License. | |
| // You may obtain a copy of the License at | |
| // | |
| // https://www.apache.org/licenses/LICENSE-2.0 | |
| // | |
| // Unless required by applicable law or agreed to in writing, software | |
| // distributed under the License is distributed on an "AS IS" BASIS, | |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| // See the License for the specific language governing permissions and | |
| // limitations under the License. | |
| // | |
| namespace absl { | |
| ABSL_NAMESPACE_BEGIN | |
| namespace internal { | |
| // This is a back-fill of C++20's `std::type_identity`. | |
| template <typename T> | |
| struct type_identity { | |
| typedef T type; | |
| }; | |
| // This is a back-fill of C++20's `std::type_identity_t`. | |
| template <typename T> | |
| using type_identity_t = typename type_identity<T>::type; | |
| } // namespace internal | |
| ABSL_NAMESPACE_END | |
| } // namespace absl | |