1MEMCMP(P)                  POSIX Programmer's Manual                 MEMCMP(P)
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NAME

6       memcmp - compare bytes in memory
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SYNOPSIS

9       #include <string.h>
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11       int memcmp(const void *s1, const void *s2, size_t n);
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DESCRIPTION

15       The memcmp() function shall compare the first n bytes (each interpreted
16       as unsigned char) of the object pointed to by s1 to the first  n  bytes
17       of the object pointed to by s2.
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19       The  sign of a non-zero return value shall be determined by the sign of
20       the difference between the values of the  first  pair  of  bytes  (both
21       interpreted  as  type  unsigned  char) that differ in the objects being
22       compared.
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RETURN VALUE

25       The memcmp() function shall return an integer greater than,  equal  to,
26       or  less  than 0, if the object pointed to by s1 is greater than, equal
27       to, or less than the object pointed to by s2, respectively.
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ERRORS

30       No errors are defined.
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32       The following sections are informative.
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EXAMPLES

35       None.
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APPLICATION USAGE

38       None.
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RATIONALE

41       None.
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FUTURE DIRECTIONS

44       None.
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SEE ALSO

47       The Base Definitions volume of IEEE Std 1003.1-2001, <string.h>
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50       Portions of this text are reprinted and reproduced in  electronic  form
51       from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
52       -- Portable Operating System Interface (POSIX),  The  Open  Group  Base
53       Specifications  Issue  6,  Copyright  (C) 2001-2003 by the Institute of
54       Electrical and Electronics Engineers, Inc and The Open  Group.  In  the
55       event of any discrepancy between this version and the original IEEE and
56       The Open Group Standard, the original IEEE and The Open Group  Standard
57       is  the  referee document. The original Standard can be obtained online
58       at http://www.opengroup.org/unix/online.html .
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62IEEE/The Open Group                  2003                            MEMCMP(P)
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