// 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.//#ifndef ABSL_BASE_INTERNAL_IDENTITY_H_#define ABSL_BASE_INTERNAL_IDENTITY_H_#include "absl/base/config.h"namespaceabsl{ABSL_NAMESPACE_BEGINnamespaceinternal{template<typenameT>structidentity{typedefTtype;};template<typenameT>usingidentity_t=typenameidentity<T>::type;}// namespace internalABSL_NAMESPACE_END}// namespace absl#endif // ABSL_BASE_INTERNAL_IDENTITY_H_