ios_project/proj.ios_mac/cocos2d-x/cocos/math/CCMathBase.h

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#ifndef __CCMATHBASE_H__
#define __CCMATHBASE_H__

#include <memory>
#include <string.h>
#include "base/ccMacros.h"
/**
 * @addtogroup base
 * @{
 */

/**Util macro for conversion from degrees to radians.*/
#define MATH_DEG_TO_RAD(x)          ((x) * 0.0174532925f)
/**Util macro for conversion from radians to degrees.*/
#define MATH_RAD_TO_DEG(x)          ((x)* 57.29577951f)
/**
@{ Util macro for const float such as epsilon, small float and float precision tolerance.
*/
#define MATH_FLOAT_SMALL            1.0e-37f
#define MATH_TOLERANCE              2e-37f
#define MATH_PIOVER2                1.57079632679489661923f
#define MATH_EPSILON                0.000001f
/**@}*/

//#define MATH_PIOVER4                0.785398163397448309616f
//#define MATH_PIX2                   6.28318530717958647693f
//#define MATH_E                      2.71828182845904523536f
//#define MATH_LOG10E                 0.4342944819032518f
//#define MATH_LOG2E                  1.442695040888963387f
//#define MATH_PI                     3.14159265358979323846f
//#define MATH_RANDOM_MINUS1_1()      ((2.0f*((float)rand()/RAND_MAX))-1.0f)      // Returns a random float between -1 and 1.
//#define MATH_RANDOM_0_1()           ((float)rand()/RAND_MAX)                    // Returns a random float between 0 and 1.
//#define MATH_CLAMP(x, lo, hi)       ((x < lo) ? lo : ((x > hi) ? hi : x))
//#ifndef M_1_PI
//#define M_1_PI                      0.31830988618379067154

#ifdef __cplusplus
    #define NS_CC_MATH_BEGIN                     namespace cocos2d {
    #define NS_CC_MATH_END                       }
    #define USING_NS_CC_MATH                     using namespace cocos2d
#else
    #define NS_CC_MATH_BEGIN
    #define NS_CC_MATH_END
    #define USING_NS_CC_MATH
#endif

/**
 * end of base group
 * @}
 */

#endif // __CCMATHBASE_H__