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modf
Usage
#include <math.h>
double modf(double x,double *ptr);
Description
modf returns the signed fractional value of x. The signed integral
part of x is stored at the location pointed to by ptr.
Example
#include <math.h>
#include <stdio.h>
main()
{
double x,y,n;
x = -41.56789;
y = modf(x,&n);
printf("modf(%f) = fractional: %f and integer: %f",x,y,n);
}
Return Value
The function modf returns the signed fractional portion of x.