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STRNCMP(3P)                POSIX Programmer's Manual               STRNCMP(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
       strncmp - compare part of two strings
SYNOPSIS
       #include <string.h>
       int strncmp(const char *s1, const char *s2, size_t n);

DESCRIPTION
       The strncmp() function shall compare not more than n bytes (bytes  that
       follow a null byte are not compared) from the array pointed to by s1 to
       the array pointed to by s2.
       The sign of a non-zero return value is determined by the  sign  of  the
       difference  between  the values of the first pair of bytes (both inter-
       preted as type unsigned char) that differ in  the  strings  being  com-
       pared.
RETURN VALUE
       Upon  successful  completion, strncmp() shall return an integer greater
       than, equal to, or less than 0, if the possibly  null-terminated  array
       pointed  to  by s1 is greater than, equal to, or less than the possibly
       null-terminated array pointed to by s2 respectively.
ERRORS
       No errors are defined.
       The following sections are informative.
EXAMPLES
       None.
APPLICATION USAGE
       None.
RATIONALE
       None.
FUTURE DIRECTIONS
       None.
SEE ALSO
       strcmp(),  the  Base  Definitions   volume   of   IEEE Std 1003.1-2001,
       <string.h>
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) 2001-2003  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 .

IEEE/The Open Group                  2003                          STRNCMP(3P)