div---divide two integers

#include <stdlib.h>
div_t div(int n, int d);

Returns
The result is represented with the structure

 typedef struct
 {
  int quot;
  int rem;
 } div_t;

where the quot field represents the quotient, and rem the remainder. For nonzero d, if `r = div(n,d);' then n equals `r.rem + d*r.quot'.

When d is zero, the quot member of the result has the same sign as n and the largest representable magnitude.

To divide long rather than int values, use the similar function ldiv.

Portability
div is ANSI, but the behavior for zero d is not specified by the standard.

No supporting OS subroutines are required.