sdk-hwV1.3/lichee/linux-4.9/lib/libm/math.h

38 lines
1.3 KiB
C

#ifndef __LOCAL_MATH_H__
#define __LOCAL_MATH_H__
#define M_E 2.7182818284590452354 /* e */
#define M_LOG2E 1.4426950408889634074 /* log 2e */
#define M_LOG10E 0.43429448190325182765 /* log 10e */
#define M_LN2 0.69314718055994530942 /* log e2 */
#define M_LN10 2.30258509299404568402 /* log e10 */
#define M_PI 3.14159265358979323846 /* pi */
#define M_PI_2 1.57079632679489661923 /* pi/2 */
#define M_PI_4 0.78539816339744830962 /* pi/4 */
#define M_1_PI 0.31830988618379067154 /* 1/pi */
#define M_2_PI 0.63661977236758134308 /* 2/pi */
#define M_2_SQRTPI 1.12837916709551257390 /* 2/sqrt(pi) */
#define M_SQRT2 1.41421356237309504880 /* sqrt(2) */
#define M_SQRT1_2 0.70710678118654752440 /* 1/sqrt(2) */
#define MAXFLOAT ((float)3.40282346638528860e+38)
//FIX ME
double copysign(double x, double y);
float copysignf(float x, float y);
double scalbn (double x, int n);
float scalbnf (float x, int n);
double floor(double x);
float floorf(float x);
//FIX ME
double __kernel_tan(double x, double y, int iy);
double __kernel_sin(double x, double y, int iy);
double __kernel_cos(double x, double y);
float __kernel_cosdf(double x);
float __kernel_sindf(double x);
int __kernel_rem_pio2(double *x, double *y, int e0, int nx, int prec);
int __ieee754_rem_pio2(double x, double *y);
int __ieee754_rem_pio2f(float x, double *y);
#include <libm/math.h>
#endif