This just came up in the CB. Someone wanted to filter an array into two arrays. I decided to be clever and suggested this:

push @{ ($_ % 2) ? @odd : @even }, $_ foreach @numbers;

[download]

That works as expected, but it turned out that the filtering should be done on a regex match. I changed my code to:

push @{ (/PAT/) ? @match : @nonmatch }, $_ foreach @words;

[download]

But that gives a "Bizarre copy of ARRAY in leave" error. Changing it again to:

push @{ (/PAT/) ? \@match : \@nonmatch }, $_ foreach @words;

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gets it working again. And on reflection, that's what should work. So, I guess the original version shouldn't work (you should need to take references in that case as well). But it does. Any explaination?

--
<http://www.dave.org.uk>

"The first rule of Perl club is you do not talk about Perl club."
-- Chip Salzenberg

In reply to Potential Ternary Operator Bug by davorg

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