| // Copyright 2023 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef BASE_MACROS_CONCAT_H_ |
| #define BASE_MACROS_CONCAT_H_ |
| |
| // A macro that expands to the concatenation of its arguments. If the arguments |
| // are themselves macros, they are first expanded (due to the indirection |
| // through a second macro). This can be used to construct tokens. |
| #define BASE_CONCAT(a, b) BASE_INTERNAL_CONCAT(a, b) |
| |
| // Implementation details: do not use directly. |
| #define BASE_INTERNAL_CONCAT(a, b) a##b |
| |
| #endif // BASE_MACROS_CONCAT_H_ |
