NAME
memcpy —
copy byte string
LIBRARY
library “libc”
SYNOPSIS
#include
<string.h>
void *
memcpy(void
*dst, const void
*src, size_t
len);
DESCRIPTION
Thememcpy()
function copies len bytes from string
src to string dst. If
src and dst overlap, the results
are not defined.
RETURN VALUES
The memcpy() function returns the original
value of dst.
SEE ALSO
STANDARDS
The memcpy() function conforms to
ISO/IEC 9899:1990
(“ISO C90”).
BUGS
In this implementation memcpy() is
implemented using
bcopy(3), and therefore the strings may overlap. On other systems,
copying overlapping strings may produce surprises. Programs intended to be
portable should use
memmove(3) when src and
dst may overlap.