slurpy scalar parameter?

What is the difference between:

 sub head(*$head, *@tail)

and

 sub head($head?, *@tail)

?

The example calls it with
 head( 1,2,3,4 );

I'm thinking that there are differences that are not apparent in this example.

--John

• slurpy scalar parameter? by John M. Dlugosz
• Re: slurpy scalar parameter? by Ryan Richter
• Re: slurpy scalar parameter? by Larry Wall