22:17:28stassatsstill trying to delete optional entries (and just stumbled on a tangent of my own)
22:18:03scymtymlast time we talked about this regarding the general case, i suggested using a hash-table to improve the O(N) backpointer removal and you suggested getting rid of the current backpointer mechanism and handling things in gc
22:18:26stassatsyeah, i remember something about that, but not whether it was actually right
22:18:34scymtymok, i'm not distracting you further. thanks again for the chat
22:22:21stassatsthe tangent was, if we have to check min and max arguments, and both are powers of two it can be done with a single mask