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greg7mdp / parallel-hashmap

A family of header-only, very fast and memory-friendly hashmap and btree containers.
https://greg7mdp.github.io/parallel-hashmap/
Apache License 2.0
2.53k stars 239 forks source link

hash_multimap #240

Closed ExeVirus closed 5 months ago

ExeVirus commented 5 months ago

Hello, great set of maps, and hash maps. Love using them as often as possible.

Realized today you don't have a hash_multimap, but do have a btree_multimap. I could see a lot of value in the node-based hash multimap (doubtful the flat version is useful, as each bucket is probably larger than 100 bytes).

Is there anything stopping this library from having such a map?

greg7mdp commented 5 months ago

Hi @ExeVirus , thank you for the kind words. You are right, there could be a hash_multimap, but it would require some development effort that I just haven't done yet, and frankly I don't think I'll do anytime soon as I'm very busy at work these days.