1 /* 2 * Copyright (c) 2013 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 // Modified from the Chromium original: 12 // src/base/strings/stringize_macros.h 13 14 // This file defines preprocessor macros for stringizing preprocessor 15 // symbols (or their output) and manipulating preprocessor symbols 16 // that define strings. 17 18 #ifndef WEBRTC_SYSTEM_WRAPPERS_INTERFACE_STRINGIZE_MACROS_H_ 19 #define WEBRTC_SYSTEM_WRAPPERS_INTERFACE_STRINGIZE_MACROS_H_ 20 21 // This is not very useful as it does not expand defined symbols if 22 // called directly. Use its counterpart without the _NO_EXPANSION 23 // suffix, below. 24 #define STRINGIZE_NO_EXPANSION(x) #x 25 26 // Use this to quote the provided parameter, first expanding it if it 27 // is a preprocessor symbol. 28 // 29 // For example, if: 30 // #define A FOO 31 // #define B(x) myobj->FunctionCall(x) 32 // 33 // Then: 34 // STRINGIZE(A) produces "FOO" 35 // STRINGIZE(B(y)) produces "myobj->FunctionCall(y)" 36 #define STRINGIZE(x) STRINGIZE_NO_EXPANSION(x) 37 38 #endif // WEBRTC_SYSTEM_WRAPPERS_INTERFACE_STRINGIZE_MACROS_H_ 39
