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FABS(3) 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
Functions of the fabs() family return the absolute value of x.
SEE ALSO
abs(3), ceil(3), floor(3), math(3), rint(3)
STANDARDS
The fabs() function conforms to ANSI X3.159-1989 ("ANSI C89"). The
fabsf() and fabsl() functions conform to ISO/IEC 9899:1999 ("ISO C99").
NetBSD 10.99 March 17, 2016 NetBSD 10.99