The EA stl is under a BSD license. Is that compatible with Unreal? I’m thinking about implementing support for it in order to see if there are any performance benefits. Is this a patch Epic might accept?
Unreal already has a very good container library with TArray, TMap, etc., and everything they build on. I would not expect any useful performance gains here, but tons of disadvantages, as you are now incompatible with the engine code.
Is this a patch Epic might accept?
I think no…