On Sun, Oct 4, 2009 at 9:09 AM, Richard Hennessy
<rich.hennessy at verizon.net>wrote:
> Is there a way to cause a function to have no return value.
>
No.
It is possible to create a symbol of length 0 using ?intern("$") which has a
zero-length printed form, but this has none of the properties you want.
-s