fabs
floating-point absolute value function
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NAME
fabs
INTERFACE
#include <math.h>
double fabs ( double x ) long fabsl ( long double x ) float fabsf ( float x )
DESCRIPTION
The fabs functions compute the absolute value of a floating-point number x.
Example 1
#include <stdio.h>
#include <math.h>
int main(void)
{
float number = -1234.0;
printf("number: %f absolute value: %f\n", number, fabs(number));
return 0;
}SPECIAL VALUES
fabs ( ±0 ) returns 0.
fabs ( ±∞ ) returns +∞.
SEE ALSO
abs (3) , ceil (3) , floor (3)
STANDARDS
The fabs functions conform to ISO/IEC 9899:1999(E).