NAME | SYNOPSIS | DESCRIPTION | RETURN VALUES | ATTRIBUTES | SEE ALSO
cc [ flag ... ] file ... -lm [ library ... ] #include <math.h>double fabs(double x);
Upon successful completion, fabs() returns the absolute value of x.
If x is NaN, NaN is returned.
See attributes(5) for descriptions of the following attributes:
ATTRIBUTE TYPE | ATTRIBUTE VALUE |
---|---|
MT-Level | MT-Safe |
NAME | SYNOPSIS | DESCRIPTION | RETURN VALUES | ATTRIBUTES | SEE ALSO