http://www.perlmonks.org?node_id=333312

Pug has asked for the wisdom of the Perl Monks concerning the following question:

I have a question concerning Perl's closures.

The code below should, to me, completely work. But when I call doesnt_work @r is not initilized. 8( Which is surpising to me because perl knows that sub doesnt_work exists so why doesn't it init @r when it is called?

#!/usr/bin/perl -w { my @s=("This works\n"); sub works { shift @s} } #This works.. print &works; # Error!! # This gives an error of Use of uninitialized value in print at .... print &doesnt_work; { my @r=("Should this work..\n"); sub doesnt_work{ pop @r; } }

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Pug