div(3C) (C Programming Language Utilities) div(3C)
NAME
div, ldiv - compute the quotient and remainder
SYNOPSIS
#include <stdlib.h>
divt div (int numer, int denom);
ldivt ldiv (long int numer, long int denom);
DESCRIPTION
div computes the quotient and remainder of the division of the
numerator numer by the denominator denom. This function provides a
well-defined semantics for the signed integral division and remainder
operations, unlike the implementation-defined semantics of the
built-in operations. The sign of the resulting quotient is that of
the algebraic quotient, and, if the division is inexact, the
magnitude of the resulting quotient is the largest integer less than
the magnitude of the algebraic quotient. If the result can not be
represented, the behavior is undefined; otherwise, quotient * denom +
remainder will equal numer.
div returns a structure of type divt, comprising both the quotient
and remainder:
typedef struct divt {
int quot; /*quotient*/
int rem; /*remainder*/
} divt;
ldiv is similar to div, except that the arguments and the members of
the returned structure (which has type ldivt) all have type long
int.
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