div (3p)  Linux Manuals
div: compute the quotient and remainder of an integer division
PROLOG
This manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface may differ (consult the corresponding Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux.NAME
div  compute the quotient and remainder of an integer division
SYNOPSIS
#include <stdlib.h>
div_t div(int numer, int denom);
DESCRIPTION
The div() function shall compute the quotient and remainder of the division of the numerator numer by the denominator denom. If the division is inexact, the resulting quotient is the integer of lesser magnitude that is the nearest to the algebraic quotient. If the result cannot be represented, the behavior is undefined; otherwise, quot* denom+ rem shall equal numer.
RETURN VALUE
The div() function shall return a structure of type div_t, comprising both the quotient and the remainder. The structure includes the following members, in any order:

int quot; /* quotient */ int rem; /* remainder */
ERRORS
No errors are defined.
The following sections are informative.
EXAMPLES
APPLICATION USAGE
RATIONALE
FUTURE DIRECTIONS
COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology  Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 20012003 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. In the event of any discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can be obtained online at http://www.opengroup.org/unix/online.html .