On Friday, 30 August 2019 at 15:00:59 UTC, Paul Backus wrote:
Whether you actually get an error at runtime depends on the load factor of the AA. If it drops below a certain threshold, the AA will be resized [1], and its original memory will be freed [2].
It could still work, depending on how the foreach loop is implemented. If the keys were stored away before starting the loop it would work. But for one thing, it isn't implemented that way and for the other, one shouldn't rely on it, because the implementation could change. What I hoped for, was, that the specs enforce somewhere, that this is to be implemented in a safe manner.
I'll replace this loops by something better, e.g. the mentioned filter. But I've never worked with AAs and filters yet. Will see, if I manage to do that. Else I'll probably just copy the keys and use them for an independent loop.
