math.h File Reference

#include <openlibm_fenv.h>
#include <openlibm_math.h>

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Typedefs
typedef float	float_t
typedef double	double_t

Functions
double	fabs (double)
float	fabsf (float)

Typedef Documentation

double_t

typedef double double_t

Definition at line 27 of file math.h.

float_t

typedef float float_t

Definition at line 26 of file math.h.

Function Documentation

fabs()

double fabs

(

double

)

Definition at line 4 of file fabs.c.

{
    union
    {
        double f;
        uint64_t i;
    } u = {x};
    u.i &= -1ULL / 2;
    return u.f;
}

Referenced by dtoa(), gdtoa(), and strtod().

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fabsf()

float fabsf

(

float

)

Definition at line 4 of file fabsf.c.

{
    union
    {
        float f;
        uint32_t i;
    } u = {x};
    u.i &= 0x7fffffff;
    return u.f;
}