FABS(3) BSD Library Functions Manual FABS(3)NAME
fabs, fabsf, fabsl — floating-point absolute value functions
LIBRARY
Math Library (libm, -lm)
SYNOPSIS
#include <math.h>
double
fabs(double x);
float
fabsf(float x);
long double
fabsl(long double x);
DESCRIPTION
The fabs(), fabsf() and fabsl() functions compute the absolute value of a
floating-point number x.
RETURN VALUES
The fabs(), fabsf() and fabsl() functions return the absolute value of x.
SEE ALSOabs(3), ceil(3), floor(3), ieee(3), math(3), rint(3)STANDARDS
The fabs() function conforms to ISO/IEC 9899:1990 (“ISO C90”). The
fabsf() and fabsl() functions conform to ISO/IEC 9899:1999 (“ISO C99”).
BSD October 25, 2003 BSD