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Re: Scalar variable value is name of a scalar variable

by citromatik (Curate)
on Jul 01, 2009 at 08:48 UTC ( #776353=note: print w/replies, xml ) Need Help??


in reply to Scalar variable value is name of a scalar variable

Symbolic references are very useful in some situations, you just have to be aware of not introducing bugs in your code while using them.

Be aware that only package (global) variables are visible to symbolic references, and the use of global variables is error-prone.

Also, the use of symbolic references results in a warning, you have to use no warnings 'ref' to avoid it, so be sure to deactivate them only in the innermost block of code where the symbolic reference is used

That said, your code uses the symbolic reference on global variables and you are not using strict and you are not using warnings at all, so probably, you will not be bother by introducing a new error-prone feature

citromatik

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[Corion]: Meh. I need to find myself a better "programming" feed than r/programming (which is just HackerNews reposts and advertisements, very little code). Maybe I should select a list of links that I liked on r/programming and then google for ...
[Corion]: ... an aggregator site that also listed (ideally) all of these links once. And maybe also have an exclude list to blacklist some of the most spammy links that the site may have never mentioned at all
[marto]: I gave up reading HN at all, and feel much better for it :P
[Corion]: Now, how to best automate that Google search ... :-)
[Corion]: marto: Yeah, I'm also short of not reading it at all. I already stopped reading it in the morning because it gave me a foul mood.
[Corion]: The good posts on HN are the non-computing posts. Most of the other stuff is maybe relevant to you if you are 20 and live in Silicon Valley...
[Corion]: Two attributes that don't describe me.
[Corion]: Maybe I should also write a curator for HN or simply not read it anymore, like you do.

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