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(5) for descriptions of the following attributes:
┌─────────────────────────────┬─────────────────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├─────────────────────────────┼─────────────────────────────┤
│Interface Stability │Committed │
├─────────────────────────────┼─────────────────────────────┤
│MT-Level │MT-Safe │
├─────────────────────────────┼─────────────────────────────┤
│Standard │See standards(5). │
└─────────────────────────────┴─────────────────────────────┘
SEE ALSOisnan(3M), math.h(3HEAD), attributes(5), standards(5)SunOS 5.11 12 Jul 2006 fabs(3M)