Scripsi:

> I had this at one time, under the name of hashtable-empty-copy (which I
> think is a less confusing name) but flushed it because I couldn't think
> of use cases.

Added.

--
John Cowan          http://www.ccil.org/~cowan        xxxxxx@ccil.org
Please leave your values at the front desk.
                --sign in Paris hotel
Check your assumptions.  In fact, check your assumptions at the door.
                --Cordelia Vorkosigan