How to I fix undefined reference in C++

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I have read about the error on the internet, and it said it could be a name mismatch. But it's not i have checked, all the names are the same in the .h and .cpp file. So basically this is how it looks in the header(.h):

C++

template <class T> class GameArray {
private:
  T* array;
public:
  GameArray(); //The constructor
};

And the source (.cpp):

C++

template <class T>
GameArray<T>::GameArray() {}

What I have tried:

I have tried different types of making class work, and this is according to the internet the way to go about it.

Posted 18-Nov-21 10:51am

Member 14769677

Updated 18-Nov-21 10:57am

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phil.o · Accepted Answer · 2021-11-18T10:57:00

Solution 1

Just define the method as you declare it in the header file, you do not need/can't have a .cpp file here.

C++

template <class T> class GameArray {
private:
  T* array;
public:
  GameArray() { } //The constructor
};

Posted 18-Nov-21 10:57am

phil.o