FABS(3M) Mathematical Library Functions FABS(3M)

NAME

fabs, fabsf, fabsl - absolute value function

SYNOPSIS

c99 [ flag... ] file... -lm [ library... ]
#include <math.h>

double fabs(double x);


float fabsf(float x);


long double fabsl(long double x);

DESCRIPTION

These functions compute the absolute value of x, |x|.

RETURN VALUES

Upon successful completion, these functions return the absolute value
of x.


If x is NaN, a NaN is returned.


If x is +-0, +0 is returned.


If x is +-Inf, +Inf is returned.

ERRORS

No errors are defined.

ATTRIBUTES

See attributes(7) for descriptions of the following attributes:


+----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+----------------------------+-----------------------------+
|Interface Stability | Standard |
+----------------------------+-----------------------------+
|MT-Level | MT-Safe |
+----------------------------+-----------------------------+

SEE ALSO

math.h(3HEAD), isnan(3M), attributes(7), standards(7)

SunOS 5.11 July 12, 2006 FABS(3M)