MEMMOVE(3P)                                         POSIX Programmer's Manual                                        MEMMOVE(3P)



PROLOG
       This  manual  page is part of the POSIX Programmer's Manual.  The Linux implementation of this interface may differ (con-
       sult the corresponding Linux manual page for details of Linux behavior), or the  interface  may  not  be  implemented  on
       Linux.

NAME
       memmove - copy bytes in memory with overlapping areas

SYNOPSIS
       #include <string.h>

       void *memmove(void *s1, const void *s2, size_t n);


DESCRIPTION
       The  memmove()  function  shall  copy  n bytes from the object pointed to by s2 into the object pointed to by s1. Copying
       takes place as if the n bytes from the object pointed to by s2 are first copied into a temporary array of  n  bytes  that
       does  not  overlap the objects pointed to by s1 and s2, and then the n bytes from the temporary array are copied into the
       object pointed to by s1.

RETURN VALUE
       The memmove() function shall return s1; no return value is reserved to indicate an error.

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, Copy-
       right (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.open-
       group.org/unix/online.html .



IEEE/The Open Group                                           2003                                                   MEMMOVE(3P)