Scope of variables in a function
anthonyjlucas at gmail.com
Sat Jun 1 20:33:15 BST 2013
Relying on its _contents_ is what you shouldn't be doing. There' a
On 1 June 2013 20:13, Andrew Beverley <andy at andybev.com> wrote:
> On Sat, 2013-06-01 at 19:15 +0100, Anthony Lucas wrote:
> > > Thanks for that. Obviously I should have RTM, but it does seem strange
> > > that something that is not recommended does not produce any sort of
> > > warnings.
> > It's not that it's not recommended, it's just that it's usually not what
> > you meant. There's nothing objectively wrong with not reinitialising a
> > variable on every call into your function.
> >From the previously quoted perlsyn text "The behaviour ... is
> undefined... Future versions of perl might do something different from
> the version of perl you try it out on."
> That says to me that it should never be used?
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