Linux 2.6 - man page for memmove (linux section 3posix)
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MEMMOVE(P) POSIX Programmer's Manual MEMMOVE(P)
memmove - copy bytes in memory with overlapping areas
void *memmove(void *s1, const void *s2, size_t n);
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 orig-
inal Standard can be obtained online at http://www.opengroup.org/unix/online.html .
IEEE/The Open Group 2003 MEMMOVE(P)
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