Hmm. I think what your saying is that the eval is necessary to avoid a warning if $var doesn't contain a value for which there is a label defined?
No, I'm saying that goto $label dies if the label has not been defined. That is not how it works in C. In C, if you have not provided a case that matches your switch value, it jumps to the default case. That's why there's an eval, to prevent the die (not warning). 
[sstone@granite sstone]$ perl -le 'print 1; goto "FOO"; print 2'
1
Can't find label FOO at -e line 1.
[sstone@granite sstone]$

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As far as preventing a warning on undef, well... I'd imagine that that should fit into whatever scheme you are using around undefs: warn if you have undef warnings on, else not. And there's nothing about stringifying $var that changes that semantic, so all seems well and good with my method. 
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:Wq
Not an editor command: Wq

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In reply to Re^6: fall through switch/case in perl by etcshadow
in thread fall through switch/case in perl by ykar

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