1 /* 2 * Copyright 2005 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_BASE_MATHUTILS_H_ 12 #define WEBRTC_BASE_MATHUTILS_H_ 13 14 #include <math.h> 15 16 #ifndef M_PI 17 #define M_PI 3.14159265359f 18 #endif 19 20 #endif // WEBRTC_BASE_MATHUTILS_H_ 21