rhubarb-lip-sync/rhubarb/lib/webrtc-8d2248ff/webrtc/system_wrappers/include/stringize_macros.h

39 lines
1.3 KiB
C

/*
* Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
// Modified from the Chromium original:
// src/base/strings/stringize_macros.h
// This file defines preprocessor macros for stringizing preprocessor
// symbols (or their output) and manipulating preprocessor symbols
// that define strings.
#ifndef WEBRTC_SYSTEM_WRAPPERS_INCLUDE_STRINGIZE_MACROS_H_
#define WEBRTC_SYSTEM_WRAPPERS_INCLUDE_STRINGIZE_MACROS_H_
// This is not very useful as it does not expand defined symbols if
// called directly. Use its counterpart without the _NO_EXPANSION
// suffix, below.
#define STRINGIZE_NO_EXPANSION(x) #x
// Use this to quote the provided parameter, first expanding it if it
// is a preprocessor symbol.
//
// For example, if:
// #define A FOO
// #define B(x) myobj->FunctionCall(x)
//
// Then:
// STRINGIZE(A) produces "FOO"
// STRINGIZE(B(y)) produces "myobj->FunctionCall(y)"
#define STRINGIZE(x) STRINGIZE_NO_EXPANSION(x)
#endif // WEBRTC_SYSTEM_WRAPPERS_INCLUDE_STRINGIZE_MACROS_H_