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

6       strncmp - compare part of two strings
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SYNOPSIS

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

15       The  strncmp() function shall compare not more than n bytes (bytes that
16       follow a null byte are not compared) from the array pointed to by s1 to
17       the array pointed to by s2.
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19       The  sign  of  a non-zero return value is determined by the sign of the
20       difference between the values of the first pair of bytes  (both  inter‐
21       preted  as  type  unsigned  char) that differ in the strings being com‐
22       pared.
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RETURN VALUE

25       Upon successful completion, strncmp() shall return an  integer  greater
26       than,  equal  to, or less than 0, if the possibly null-terminated array
27       pointed to by s1 is greater than, equal to, or less than  the  possibly
28       null-terminated array pointed to by s2 respectively.
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ERRORS

31       No errors are defined.
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33       The following sections are informative.
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EXAMPLES

36       None.
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APPLICATION USAGE

39       None.
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RATIONALE

42       None.
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FUTURE DIRECTIONS

45       None.
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SEE ALSO

48       strcmp()   ,  the  Base  Definitions  volume  of  IEEE Std 1003.1-2001,
49       <string.h>
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52       Portions of this text are reprinted and reproduced in  electronic  form
53       from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
54       -- Portable Operating System Interface (POSIX),  The  Open  Group  Base
55       Specifications  Issue  6,  Copyright  (C) 2001-2003 by the Institute of
56       Electrical and Electronics Engineers, Inc and The Open  Group.  In  the
57       event of any discrepancy between this version and the original IEEE and
58       The Open Group Standard, the original IEEE and The Open Group  Standard
59       is  the  referee document. The original Standard can be obtained online
60       at http://www.opengroup.org/unix/online.html .
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64IEEE/The Open Group                  2003                           STRNCMP(P)
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