in reply to Re: Turn matching against undef to be deadly
in thread Turn matching against undef to be deadly

$ perl -Mwarnings=FATAL,all -E " say q/hi/; shift =~ undef ; say q/bye
+/ "
hi
Use of uninitialized value in regexp compilation at -e line 1.

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warnings, perllexwarn#Fatal Warnings
  • Comment on Re^2: Turn matching against undef to be deadly ( use warnings qw/ FATAL all /;
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