|  | /* | 
|  | *  Copyright (c) 2012 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. | 
|  | */ | 
|  |  | 
|  | #ifndef RTC_BASE_COMPILE_ASSERT_C_H_ | 
|  | #define RTC_BASE_COMPILE_ASSERT_C_H_ | 
|  |  | 
|  | // Use this macro to verify at compile time that certain restrictions are met. | 
|  | // The argument is the boolean expression to evaluate. | 
|  | // Example: | 
|  | //   RTC_COMPILE_ASSERT(sizeof(foo) < 128); | 
|  | // Note: In C++, use static_assert instead! | 
|  | #define RTC_COMPILE_ASSERT(expression) \ | 
|  | switch (0) {                         \ | 
|  | case 0:                            \ | 
|  | case expression:;                  \ | 
|  | } | 
|  |  | 
|  | #endif  // RTC_BASE_COMPILE_ASSERT_C_H_ |