In my opinion, $_ springs into being when Perl feels it's appropriate -- it's an auto-vivified rvalue.

On the other hand, $_ is *never* an lvalue unless you're using a regexp to modify the value, as in $_ =~ s/foo/bar/;, and even that's stretching a point, because of course uou can do the same thing with just s/foo/bar/;

So I would say that any code that *sets* $_ is, by definition, wrong.

Alex / talexb / Toronto

"Groklaw is the open-source mentality applied to legal research" ~ Linus Torvalds

In reply to Re: "$_" vs. $_ by talexb
in thread "$_" vs. $_ by argv

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