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