From: Larry Wall [EMAIL PROTECTED]
> The default is pass-by-reference, but non-modifiable. If
> there's a pass-by-value, it'll have to be specially requested
> somehow.
>
> This is a minimal difference from Perl 5, in which everything
> was pass-by-reference, but modifiable. To get pass-by-value,
> you just do an assignment. :-)
Why? We could make arglists exactly equivilent to the way they're done in
Perl 5, which is a good way.
sub foo($a, $b, *@c) {...}
Would be exactly equivilent to Perl 5's
sub foo { my ($a, $b, @c) = @_; ... }
Since variables are copy-on-write, you get the speed of pass-by-reference
with the mutability of pass-by-value, which is what everyone wants. If you
have this, why would you want to do enforced const reference? That's not
rhetorical; I'm actually curious.
Luke
