DragonFly On-Line Manual Pages
FABS(3) DragonFly 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), 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'').
DragonFly 3.5 December 21, 2011 DragonFly 3.5