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Linker error LNK2019 C++ UE4

Linker gives me 3 errors:

 2>MazeLib.cpp.obj : error LNK2019: unresolved external symbol "public: __cdecl TStack<class FString>::TStack<class FString>(int)" (??0?$TStack@VFString@@@@QEAA@H@Z) referenced in function "void __cdecl testStack(void)" (?testStack@@YAXXZ)
 2>MazeLib.cpp.obj : error LNK2019: unresolved external symbol "public: class FString __cdecl TStack<class FString>::pop(void)" (?pop@?$TStack@VFString@@@@QEAA?AVFString@@XZ) referenced in function "void __cdecl testStack(void)" (?testStack@@YAXXZ)
 2>MazeLib.cpp.obj : error LNK2019: unresolved external symbol "public: bool __cdecl TStack<class FString>::push(class FString)" (?push@?$TStack@VFString@@@@QEAA_NVFString@@@Z) referenced in function "void __cdecl testStack(void)" (?testStack@@YAXXZ)

My TStack.h file is here:

 template<typename T>
 class SOMETHING_API TStack
 {
 public:
     TStack(int size);
     ~TStack();
     T pop();
     bool push(T elem);
     bool isEmptY();
     bool isFull();
 
 private:
     T * stack;
     int currPoint = -1, countElems = 0, stackSize;
 };

And testStack() function:

 void testStack() {
     TStack<FString>* stack = new TStack<FString>(3);
     stack->push(TEXT("1st string!"));
     stack->push(TEXT("2nd string!"));
     stack->push(TEXT("3rd string!"));
     GEngine->AddOnScreenDebugMessage(-1, 5.f, FColor::Blue, stack->pop());
     GEngine->AddOnScreenDebugMessage(-1, 5.f, FColor::Blue, stack->pop());
     GEngine->AddOnScreenDebugMessage(-1, 5.f, FColor::Blue, stack->pop());
 }

So can you help me?

Product Version: UE 4.18
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asked May 01 '18 at 09:19 AM in C++ Programming

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Poseydon42
10 3 4 10

avatar image Poseydon42 May 01 '18 at 12:56 PM

Help, please!

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