Tree::Nary, my impression is that it is a bad idea. That said I can provide partial enlightenment. When you pass a tree to a subroutine it copies the reference to the root of the data structure, not the data. So you get a shallow copy. Unless you use something like Storable's clone, the routines you pass data to can therefore affect your copy of tree.

Without code I can't say how or where it is happening, and as I said I wuoldn't worry about it too much - I would rewrite code more efficiently in a more native fashion.

In reply to Re: Tree::Nary -- my program is creating phantom nodes by tilly
in thread Tree::Nary -- my program is creating phantom nodes by Amphiaraus

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