Why not support long type hashable?

Development Platform & Builds
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1

I got error below when linux build.

error : static_assert failed due to requirement ‘TModels::Value’ "TMap must have a hashable KeyType unless a custom key func is provided.

note: in instantiation of template class ‘TMap<long, long long, FDefaultSetAllocator, TDefaultMapHashableKeyFuncs<long, long long, false>>’ requested here

why not support long type?

2

That probably because you using native C++ integer type name while UE4 expect you to use UE4 typedefs, so try int32 for long and int64 for long long

3

thank you for your comment
but int and __int64 can be build
I just wondering why long type only blocked

4

Again, that because UE4 code expect you to use UE4 typedefs which in general you should use in UE4, did you try int32?

5

yeah, that worked.
thanks!