Nathan Wiger wrote:
>
> > This RFC proposes that operators in a list context should be applied
> > element-wise to the elements of their arguments:
> >
> > @d = @b * @c; # Returns (2,8,18)
> >
> > If the lists are not of equal length, an error is raised.
>
> I've been watching this RFC for a while. I would hesitate to change the
> default behavior of * and other operators in so radical a sense,
> especially since it would create unexpected error conditions. I think
> these operations should remain scalar.
I disagree. You end up with a situation where some
@a * @b;
are in scalar context, some not. And what happens when you say
@a = (1,2,2);
@b = tie Matrix (1,2,3);
@a*@b;
Who wins?
>From the user point of view a 1D multi-dim array will look just the same
as a normal perl list in *all* respects in a would-be perl6. I bet money
that users will be highly confused if some arrays enforce scalar context
in such operations, others don't. It is *much* clearer to have a clear
break with perl5 in this respect (even if code needs to be rewritten).
A p52p6 could replace all occurences of @a*@b with
scalar(@a)*scalar(@b).
Christian
