- //===--- CLWarnings.h - Maps some cl.exe warning ids  -----------*- 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 
- // 
- //===----------------------------------------------------------------------===// 
-   
- #ifndef LLVM_CLANG_BASIC_CLWARNINGS_H 
- #define LLVM_CLANG_BASIC_CLWARNINGS_H 
-   
- #include <optional> 
-   
- namespace clang { 
-   
- namespace diag { 
- enum class Group; 
- } 
-   
- /// For cl.exe warning IDs that cleany map to clang diagnostic groups, 
- /// returns the corresponding group. Else, returns an empty Optional. 
- std::optional<diag::Group> diagGroupFromCLWarningID(unsigned); 
-   
- } // end namespace clang 
-   
- #endif // LLVM_CLANG_BASIC_CLWARNINGS_H 
-