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.
The memmove() function shall return s1; no return value
is reserved to indicate an error.
No errors are defined.
The following sections are informative.
The Base Definitions volume of IEEE Std 1003.1-2001, <string.h>
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