ref: 83c9fe6cbeb3e238c585de2be59ba6544891fd22
dir: /posix/math_private.h/
typedef int int32_t;
typedef unsigned int u_int32_t;
typedef union
{
float value;
u_int32_t word;
} ieee_float_shape_type;
/* Get a 32 bit int from a float. */
#define GET_FLOAT_WORD(i,d) \
do { \
ieee_float_shape_type gf_u; \
gf_u.value = (d); \
(i) = gf_u.word; \
} while (0)
/* Set a float from a 32 bit int. */
#define SET_FLOAT_WORD(d,i) \
do { \
ieee_float_shape_type sf_u; \
sf_u.word = (i); \
(d) = sf_u.value; \
} while (0)
int32_t __ieee754_rem_pio2f(float x, float *y);
int __kernel_rem_pio2f(float *x, float *y, int e0, int nx, int prec, const int32_t *ipio2);
float __kernel_cosf(float x, float y);
float __kernel_sinf(float x, float y, int iy);
float __kernel_tanf(float x, float y, int iy);
float scalbnf(float x, int n);
float copysignf(float x, float y);