return and the heap

[David Bremner <bremner@unb.ca>]

Over the last week or so I have been plaguing the list with my
troubles with heap usage in gp. I seem to have narrowed it down to the
fact that return makes a copy of the result of a recursive call (or 
something)

With the following script, the commented out version of the recursive 
call leaves only one thing on the heap, whereas the return leaves one
for every recursive call.  


foo(count)=
{

 if(count<=0, return(0));

\\ foo(count-1);
   return(foo(count-1));
}