double fabs (double x);
double fabs (double x); float fabsf (float x);long double fabsl (long double x);
double fabs (double x); float fabs (float x);long double fabs (long double x);
double fabs (double x); float fabs (float x);long double fabs (long double x); double fabs (T x); // additional overloads for integral types
<cmath> ) for the integral types: These overloads effectively cast x to a double (defined for T being any integral type ).1
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/* fabs example */
#include <stdio.h> /* printf */
#include <math.h> /* fabs */
int main ()
{
printf ("The absolute value of 3.1416 is %f\n", fabs (3.1416) );
printf ("The absolute value of -10.6 is %f\n", fabs (-10.6) );
return 0;
}The absolute value of 3.1416 is 3.141600 The absolute value of -10.6 is 10.600000