//===- llvm/ADT/Identity.h - Provide std::identity from C++20 ---*- C++ -*-===// // // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception // //===----------------------------------------------------------------------===// // // This file provides an implementation of std::identity from C++20. // // No library is required when using these functions. // //===----------------------------------------------------------------------===// #ifndef LLVM_ADT_IDENTITY_H #define LLVM_ADT_IDENTITY_H namespace llvm { // Similar to `std::identity` from C++20. template <class Ty> struct identity { … }; } // end namespace llvm #endif // LLVM_ADT_IDENTITY_H