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Re^3: %+ and cloning

by BrowserUk (Pope)
on Jan 11, 2010 at 13:04 UTC ( #816716=note: print w/ replies, xml ) Need Help??


in reply to Re^2: %+ and cloning
in thread %+ and cloning

A simple my %copy = %+; is equivalent to your sub. However, that may not be enough!

According to the docs for Tie::Hash::NamedCapture, the values of the tied hash can contain an array reference holding multiple captures due to the re-use of the same named capture. In which case you might need to use something more complex to perform a deep copy operation.

That said, in my simple tests, this doesn't seem to apply to %+. It does apply to %- though.


Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
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Re^4: %+ and cloning
by JavaFan (Canon) on Jan 11, 2010 at 16:39 UTC
    It happens if the tie happens with parameters all => 1, but %+ is tied without them. So even if your tests were less simple, you shouldn't have seen it with %+ (and if you ever do, there's a bug).

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