fabs
, fabsf
—absolute value (magnitude)#include <math.h> double fabs(double x); float fabsf(float x);
Description
fabs
and fabsf
calculate
the absolute value (magnitude) of the argument x, by direct
manipulation of the bit representation of x.
Returns
The calculated value is returned. No errors are detected.
Portability
fabs
is ANSI.
fabsf
is an extension.