Table of Contents
fabs, fabsf, fabsl - absolute value of
floating-point number
#include <math.h>
double fabs(double x);
float fabsf(float x);
long double fabsl(long double x);
The fabs functions return the
absolute value of the floating-point number x.
No errors can occur.
The fabs() function conforms to SVID 3, POSIX, BSD 4.3, ISO
9899. The other functions are from C99.
abs(3)
, ceil(3)
, floor(3)
,
labs(3)
, rint(3)
Table of Contents