> As a side note: a hack could be to add a signal handler which parses the OP tree at the caller for all undefined entries .

see RFC: Adding variable name to warning "Use of uninitialized value ??? in ..."

Cheers Rolf
(addicted to the Perl Programming Language and ☆☆☆☆ :)
Je suis Charlie!

In reply to Re^5: determine the variable causing the error: Use of uninitialized value (hack) by LanX
in thread determine the variable causing the error: Use of uninitialized value by ruqui

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