NAME

       memcmp - compare bytes in memory

SYNOPSIS

       #include <string.h>

       int memcmp(const void *s1, const void *s2, size_t n);

DESCRIPTION

       The  memcmp() function shall compare the first n bytes (each interpreted as unsigned char)
       of the object pointed to by s1 to the first n bytes of the object pointed to by s2.

       The sign of a non-zero return value shall be determined by  the  sign  of  the  difference
       between  the  values  of  the first pair of bytes (both interpreted as type unsigned char)
       that differ in the objects being compared.

RETURN VALUE

       The memcmp() function shall return an integer greater than, equal to, or less than  0,  if
       the  object pointed to by s1 is greater than, equal to, or less than the object 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

       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 .