FABS(3)

NAME
fabs - floating-point absolute value function

SYNOPSIS
#include <math.h>
double
fabs(double x);
long double
fabsl(long double x);
float
fabsf(float x);

DESCRIPTION
The fabs() functions compute the absolute value of a floating-point number x.

SPECIAL VALUES
fabs(±0) returns 0.

fabs(±infinity) returns +infinity.

SEE ALSO
abs(3), ceil(3), floor(3), rint(3), math(3)

STANDARDS
The fabs() functions conform to ISO/IEC 9899:1999(E).