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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_INTERFACE_COMPILE_ASSERT_H_
     12 #define WEBRTC_SYSTEM_WRAPPERS_INTERFACE_COMPILE_ASSERT_H_
     13 
     14 /* Use this macro to verify at compile time that certain restrictions are met.
     15  * The argument is the boolean expression to evaluate.
     16  * Example:
     17  *   COMPILE_ASSERT(sizeof(foo) < 128);
     18 */
     19 #define COMPILE_ASSERT(expression) switch(0){case 0: case expression:;}
     20 
     21 #endif  // WEBRTC_SYSTEM_WRAPPERS_INTERFACE_COMPILE_ASSERT_H_
     22