TMap with struct

[dominikpavlicek]

@ChillyFlashER

I tried using GENERATED_USTRUCT_BODY() , does not change anything.

FYI: GENERATED_UCLASS_BODY() doesn’t creates the constructor, GENERATED_BODY() does.

I never thought of going into the source code for something this simple, even when there is a documentation page.
So I did a search for TMap and found this great example.

This is the code I came up with that works.

struct FMyStruct
{
int32 ID;

FMyStruct()
{}

friend bool operator==(const FMyStruct& first, const FMyStruct& second)
{
return (first.ID == second.ID);
}
};

UCLASS()
class AActorTest : public AActor
{
GENERATED_BODY()

//UPROPERTY(VisibleAnywhere)
TMap<FMyStruct, int32> hashmap;
};

Having a UPROPERTY() on the TMap doesn’t work apparently, it will throw the USTRUCT issue again.

This is the way to fix the issue in 4.25 build (launcher and GitHub both). Thanks for digging into the source code so I don’t have to