Is there a specific library necessary to use static functions?

Development Programming & Scripting C++
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1

So I’m trying to use a static function so that i can add it to a function library via c++ my code is as follows:

in the header file:

under the public section:

static bool CanSeeActor(const UWorld* World, FVector Location, const AActor* TargetActor, TArray IgnoreActors = TArray());

in in the cpp file:

static bool CanSeeActor(const UWorld* World, FVector Location, const AActor* TargetActor, TArray IgnoreActors = TArray())
{
my implementation
}

when i went to compile i was getting a linker error but I am not sure how to resolve it:

Severity Code Description Project File Line Suppression State
Error LNK2019 unresolved external symbol “public: static bool __cdecl UDodgeballFunctionLibrary::CanSeeActor(class UWorld const *,struct FVector,class AActor const *,class TArray<class AActor const *,class TSizedDefaultAllocator<32> >)” (?CanSeeActor@UDodgeballFunctionLibrary@@SA_NPEBVUWorld@@UFVector@@PEBVAActor@@anonymous_user_e71e0d8a1?$TArray@PEBVAActor@@anonymous_user_e71e0d8a1?$TSizedDefaultAllocator@$0CA@@@@@@Z) referenced in function “public: bool __cdecl AEnemyCharacter::LookAtActor(class AActor *)” (?LookAtActor@AEnemyCharacter@@QEAA_NPEAVAActor@@@Z) Dodgeball C:\Users\OneDrive\Desktop\C++ Projects\DodgeballUE4\Dodgeball\Intermediate\ProjectFiles\EnemyCharacter.cpp.obj 1

Am i missing something?

2

You used your CanSeeActor function in AEnemyCharacter::LookAtActor without having included the definition in that translation unit.

3

Thanks for the response! You helped me figure it out. :slight_smile:

4

good to hear, please mark answers as accepted when they have helped you solve your problem.