Daily Unreal Column #36 - Printing function name

If I were to cut a finger every time I see people writing literal function name when they are adding debug logs I would be fingerless long time ago. Here is how to do it right.

The proper way of accessing current function name is using __FUNCTION__ identifier. To use it as an FString and avoid compilation errors on different platforms (looking at you PS5) you need to wrap it with either:

• ANSI_TO_TCHAR(__FUNCTION__)

• or with StringCast<TCHAR>(__FUNCTION__).Get() (not an option in UE4 AFAIK)

Your logs should look like this then:

UE_LOG(
    LogTemp, 
    Error, 
    TEXT("[%s] Error details"), 
    *StringCast<TCHAR>(__FUNCTION__).Get());