That's a nice demonstration of remembered state with each. It can be a useful property to exploit for some kinds of iterators, but it's pretty fragile. As you say, calling keys on the hash resets the each state.

You can avoid the scalar op and a useless variable by just calling keys in scalar context: 

    keys %hash and return "The key for 2 is $key\n"
        if $val == 2;

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After Compline,
Zaxo

In reply to Re: Ouch! Each! Reentrant it is not by Zaxo
in thread Ouch! Each! Reentrant it is not by Thilosophy

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