On Tue, 2003-11-18 at 17:01, Ross McFarland wrote:
$nextiter = $model->iter_next ($iter)
If only iter_next didn't need $model, we could use $iter->next, which would be really Perl'ish and consistent with what you can do to GtkTreePath'. Oh well.
[...], in c, you would simply copy the iter and the iter_next the copy, but you don't get copy in perl for various/obvious reasons.
Okay, it's obvious because the Perl programmer shouldn't need to worry about memory management. But $iter->copy has other uses, too. As an example you can use it to store iterators while in a $model->foreach loop. If you just store $iter, it'll be invalid as soon as you leave the loop. If you store $iter->copy, though, it'll still be valid. Without $iter->copy, you need to resort to TreeRowReferences, which get the job done but are more cumbersome and not available on all versions of GTK+. In case that convinced you, I've attached a patch that enables $iter->copy.
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