I have run into this problem before and it has to do with the fact that the statement "my @r=..." hasn't been executed yet. Perl lets you use the @r under strict because your definition for "doesnt_work" is within the lexical scope of @r. But it does not automatically execute code just because it uses a variable that might possible be in a closure or just because it is in a block that contains a definition of a sub.
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Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
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Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
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Want more info? How to link
or How to display code and escape characters
are good places to start.
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