div - computes the quotient and remainder of integer divi
sion
#include <stdlib.h>
div_t div(int numer, int denom);
The div() function computes the value numer/denom and
returns the quotient and remainder in a structure named
div_t that contains two integer members named quot and
rem.
The div_t structure.
SVID 3, BSD 4.3, ISO 9899
ldiv(3)