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)
