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Brilliant!!! The & prototype was the secret sauce! Thank you so much for your help.

I'm embarrassed to see that it was on page 123 of High Order Perl and I missed it. An example with a foreach would have helped -- but MJD did such an awesome job with a lot of complicated topics in that book that there's no way I'm going to complain! I should have read the chapter more carefully.

There's a web site called programming-idioms.org which provides a database of idioms implemented in different languages for easy comparison. The reason I asked about this is that I made a contribution to the idiom for generator functions but after additional testing realized it didn't work in a foreeach loop. I'll use your suggestion to update it.

Here's a link to the programming idioms page I'll be modifying:

Idiom #319 generator functions

In reply to Re^2: How can I create an iterator that works inside foreach() (updated) by PUCKERING
in thread How can I create an iterator that works inside foreach() by PUCKERING

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