Re: Local for lexicals

by Bloodnok (Vicar)

on Aug 10, 2009 at 15:32 UTC ( [id://787358]=note: print w/replies, xml )

Need Help??

Have I missed something??

$ perl -wMstrict -e 'my $e = 77; warn $e; { my $e = 22; warn $e }; warn $e' gives, when run, :

77 at -e line 1.
22 at -e line 1.
77 at -e line 1.
[download]

As, I think, expected.

Update:

Corrected error - original code would never produce stated results coz of missing intialization.

A user level that continues to overstate my experience :-))

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Re^2: Local for lexicals by JadeNB (Chaplain) on Aug 10, 2009 at 15:35 UTC
The problem is that the inner `my $e` is a completely different variable to the outer one, so that functions closing over the outer one don't ‘see’ it. To illustrate: `perl -wMstrict -e 'my $e = 77; my $f = sub { warn $e }; $f->(); { my $ +e = 22; $f->() } $f->();'` [download] gives `77 at -e line 1 77 at -e line 1 77 at -e line 1` [download]	[reply] [d/l] [select]

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