in reply to How to safely use $_ in a library function?

Instead of appropriating Perl's work horse for your own purpose, why don't you call your variable $MyLibrarysGlobalCallStackInformation?

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Re^2: How to safely use $_ in a library function?
by vsespb (Chaplain) on Sep 17, 2013 at 12:31 UTC
    Yep, and still localize it to make code reentrant: 
    local $MyLibrarysGlobalCallStackInformation;

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