On Thursday, August 29, 2019 4:11:58 AM MDT berni via Digitalmars-d-learn wrote: > Iterating of some structure and removing elements thereby is > always errorprone and should be avoided. But: In case of AA, I've > > got the feeling, that it might be safe: > > foreach (k,v;ways) > > > > if (v.empty) > > > > ways.remove(k); > > Do you agree? Or is there a better way to achieve this?
No, it's not safe to do that. If you insert or remove any elements from an AA while looping over it, you're going to have weird behavior. If you want to remove elements in a loop, then you'll need to do something like put each key that you want to remove in a dynamic array while looping over the AA and then loop over the dynamic array to remove the elements from the AA. - Jonathan M Davis
