LDIV(3P) POSIX Programmer's Manual LDIV(3P)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
ldiv, lldiv — compute quotient and remainder of a long division
SYNOPSIS
#include <stdlib.h>
ldiv_t ldiv(long numer, long denom);
lldiv_t lldiv(long long numer, long long denom);
DESCRIPTION
The functionality described on this reference page is aligned with the
ISO C standard. Any conflict between the requirements described here
and the ISO C standard is unintentional. This volume of POSIX.1‐2008
defers to the ISO C standard.
These functions shall compute the quotient and remainder of the divi‐
sion of the numerator numer by the denominator denom. If the division
is inexact, the resulting quotient is the long integer (for the ldiv()
function) or long long integer (for the lldiv() function) 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 ldiv() function shall return a structure of type ldiv_t, comprising
both the quotient and the remainder. The structure shall include the
following members, in any order:
long quot; /* Quotient */
long rem; /* Remainder */
The lldiv() function shall return a structure of type lldiv_t, compris‐
ing both the quotient and the remainder. The structure shall include
the following members, in any order:
long long quot; /* Quotient */
long long rem; /* Remainder */
ERRORS
No errors are defined.
The following sections are informative.
EXAMPLES
None.
APPLICATION USAGE
None.
RATIONALE
None.
FUTURE DIRECTIONS
None.
SEE ALSOdiv()
The Base Definitions volume of POSIX.1‐2008, <stdlib.h>
COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form
from IEEE Std 1003.1, 2013 Edition, Standard for Information Technology
-- Portable Operating System Interface (POSIX), The Open Group Base
Specifications Issue 7, Copyright (C) 2013 by the Institute of Electri‐
cal and Electronics Engineers, Inc and The Open Group. (This is
POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) 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.unix.org/online.html .
Any typographical or formatting errors that appear in this page are
most likely to have been introduced during the conversion of the source
files to man page format. To report such errors, see https://www.ker‐
nel.org/doc/man-pages/reporting_bugs.html .
IEEE/The Open Group 2013 LDIV(3P)
