RE: Defaulting params

[David Whipp]

Melvin Smith wrote:
> So we have undef and reallyundef? :)

Seems reasonable, given that we have c<defined> and c<exists>.

How about:

sub foo ( $a is optional )
{
  if exists($a) { ... }
  elsif defined($a) { ... }
  else { ... }
}

Dave.