When would `local $_' in a function ruin your day?

Perl Questions and Answers

(Continued from previous question...)

When would `local $_' in a function ruin your day?

When your caller was in the middle for a while(m//g) loop
The /g state on a global variable is not protected by running local on it. That'll teach you to stop using locals. Too bad $_ can't be the target of a my() -- yet.

(Continued on next question...)

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