Precision of rand()

[G.R.Tomasevich]

> 	It seems that I spoke too soon. Ints on our 3B20S are indeed 4 bytes
> long. rand() returns a 4 byte value BUT (this is the catch) the value is
> masked to its lower 15 bits yeilding 0 <= rand() <= 32767.
> -- 
> Edward C. Bennett

The length of the calculation has been 32 bits for a long time, even on
the PDP-11.  The static variable, randx, is a long.  See the source
routine, which is /usr/src/lib/libc/port/gen/rand.c on our machine.
-- 
	George Tomasevich, ihnp4!twitch!grt
	AT&T Bell Laboratories, Holmdel, NJ