It's documented.

> Exception: It is always safe to delete the item most recently returned by each, so the following code works properly:

>

while (my ($key, $value) = each %hash) {
    print $key, "\n";
    delete $hash{$key};   # This is safe
}
[download]

Oh I didn't mean I don't trust perl with that. It's whoever is using perl I have trust issues against ;-)

point is you must delete the current key to avoid an endless loop.

not sure how an idiot proof algo would look like.

Cheers Rolf
_{(addicted to the Perl Programming Language :)
Wikisyntax for the Monastery FootballPerl is like chess, only without the dice}