Someone could do our $_; because they thought that if declaring things is good then it is better to declare everything. Or (admittedly more likely) they could do it to prove a point.

You are right that the specific code example I gave only works for $_. But some variant of the trap works on any global variable that is normally assumed to be in package main no matter what package you are in. Like @_, %ENV, or %SIG.

In any case this is an example of why it is better to have a precise understanding of how features work rather than having a vague impression that is going to mostly work, most of the time.

In reply to Re^8: the "our" declaration ?!! by tilly
in thread the "our" declaration ?!! by perlpal

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