SysV bcopy?

[Guy Harris]

>Is there a routine in the system V library analogous to BSD's bcopy().

"memcpy".  The differences are:

	1) the first and second arguments are reversed:

		bcopy(from, to, count);

	    becomes

		memcpy(to, from, count);

	2) "memcpy" makes no guarantees that it'll work right if "from"
	   and "to" overlap; I don't have the 4.3-tahoe manual page
	   handy to see whether it guarantees that it'll work, but I
	   think most implementations do guarantee that, and some code
	   relies on it working.  (The SunOS "bcopy" manual page says
	   that "Overlapping strings are handled correctly.")