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 ALSO
abs(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
