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1 /*
2  *  Copyright (c) 2012 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 #ifndef WEBRTC_SYSTEM_WRAPPERS_INCLUDE_COMPILE_ASSERT_H_
12 #define WEBRTC_SYSTEM_WRAPPERS_INCLUDE_COMPILE_ASSERT_H_
13 
14 #ifdef __cplusplus
15 #error "Only use this for C files. For C++, use static_assert."
16 #endif
17 
18 // Use this macro to verify at compile time that certain restrictions are met.
19 // The argument is the boolean expression to evaluate.
20 // Example:
21 //   COMPILE_ASSERT(sizeof(foo) < 128);
22 #define COMPILE_ASSERT(expression) switch (0) {case 0: case expression:;}
23 
24 #endif  // WEBRTC_SYSTEM_WRAPPERS_INCLUDE_COMPILE_ASSERT_H_
25