NAME
memmove — copy
bytes in memory with overlapping areas
SYNOPSIS
#include
<string.h>
void *memmove(void *s1, const void *s2, size_t n);
DESCRIPTION
[CX] The functionality described on this reference page is aligned with the ISO C standard. Any conflict between the requirements described here and the ISO C standard is unintentional. This volume of POSIX.1-2008 defers to the ISO C standard.
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.
EXAMPLES
None.
APPLICATION USAGE
None.
RATIONALE
None.
FUTURE DIRECTIONS
None.
SEE ALSO
XBD <string.h>
CHANGE HISTORY
First released in Issue 4. Derived from the ANSI C standard.