I was looking through the source code of Find.pm of File::Find. The comments mention why local()-izing is needed, which I kinda-sorta understand since the the callback functions passed in may call find or finddepth again, so local essentially makes a copy of the global variables (am I right or wrong here?). However, I don't understand why local *_ isn't sufficient. Why is set to \my $a? Why \my $a in particular and not some other variable--I mean, could any variable substitute \my $a? Thanks.

In reply to What is the purpose of local *_ = \my $a in File::Find? by YenForYang

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