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Re^3: Christmas Tree

by LanX (Bishop)
on Jan 11, 2009 at 17:55 UTC ( #735533=note: print w/replies, xml ) Need Help??

in reply to Re^2: Christmas Tree
in thread Christmas Tree

Thanx, and a happy new year for you too! 8 )

I have to admit I was confused by your example, it's important to understand that printf takes his parameters by reference and not by value!

So it's possible to still influence $_ in the last parameter with effect for the first!

Very insightful, thanx a lot!

Cheers Rolf

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Re^4: Christmas Tree
by mtve (Deacon) on Jan 12, 2009 at 07:26 UTC
    Well, it's a bit complicated, but yes, all perl functions take parameters by reference.

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