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