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