1DIV(3P) POSIX Programmer's Manual DIV(3P)
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6 This manual page is part of the POSIX Programmer's Manual. The Linux
7 implementation of this interface may differ (consult the corresponding
8 Linux manual page for details of Linux behavior), or the interface may
9 not be implemented on Linux.
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13 div — compute the quotient and remainder of an integer division
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16 #include <stdlib.h>
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18 div_t div(int numer, int denom);
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21 The functionality described on this reference page is aligned with the
22 ISO C standard. Any conflict between the requirements described here
23 and the ISO C standard is unintentional. This volume of POSIX.1‐2008
24 defers to the ISO C standard.
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26 The div() function shall compute the quotient and remainder of the
27 division of the numerator numer by the denominator denom. If the divi‐
28 sion is inexact, the resulting quotient is the integer of lesser magni‐
29 tude that is the nearest to the algebraic quotient. If the result can‐
30 not be represented, the behavior is undefined; otherwise,
31 quot*denom+rem shall equal numer.
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34 The div() function shall return a structure of type div_t, comprising
35 both the quotient and the remainder. The structure includes the follow‐
36 ing members, in any order:
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38 int quot; /* quotient */
39 int rem; /* remainder */
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42 No errors are defined.
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44 The following sections are informative.
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47 None.
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59 ldiv()
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61 The Base Definitions volume of POSIX.1‐2008, <stdlib.h>
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64 Portions of this text are reprinted and reproduced in electronic form
65 from IEEE Std 1003.1, 2013 Edition, Standard for Information Technology
66 -- Portable Operating System Interface (POSIX), The Open Group Base
67 Specifications Issue 7, Copyright (C) 2013 by the Institute of Electri‐
68 cal and Electronics Engineers, Inc and The Open Group. (This is
69 POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) In the
70 event of any discrepancy between this version and the original IEEE and
71 The Open Group Standard, the original IEEE and The Open Group Standard
72 is the referee document. The original Standard can be obtained online
73 at http://www.unix.org/online.html .
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75 Any typographical or formatting errors that appear in this page are
76 most likely to have been introduced during the conversion of the source
77 files to man page format. To report such errors, see https://www.ker‐
78 nel.org/doc/man-pages/reporting_bugs.html .
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82IEEE/The Open Group 2013 DIV(3P)