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Postings from May 2012
On Tue, May 01, 2012 at 03:53:49PM -0400, Eric Brine wrote:
> On Tue, May 1, 2012 at 11:24 AM, David Nicol <davidnicol@gmail.com> wrote:
>
> > On Tue, May 1, 2012 at 10:11 AM, Paul LeoNerd Evans
> > <leonerd@leonerd.org.uk> wrote:
> > > At which point we might consider what
> > >
> > > my @values = (while($cond) { EXPR });
> > >
> > > might do.
> > >
> > > Just a thought...
> >
> > it seems clear that @values would wind up holding one of undef, 0, '',
> > or some overloaded reference that gives a false value in boolean
> > context..
> >
>
> It does not seem clear to me at all. Why would Perl do something useless? I
> would expect a warning if not an error.
I'd expect Perl to DWIM, and that's to populate @values with the successive
values of EXPR. That is, if it were valid syntax, I'd expect:
my $i = 3;
my @values = while ($i) {$i * $i --};
say "@values";
to print out "9 4 1".
That would be much more useful than the final result of the condition.
Abigail
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