Problem C++ Creating Callback Function Pointer that takes Class Ref as Param

[J-M-L]

In absolute terms, Why would you do this?

@electricpixies

Encoder1.SetCallbackRight(IncrementStoredVariable(Encoder1));

Encoder1 knows itself, you would not need to pass that as a parameter

And to be more specific, the way you wrote it, the compiler tries to call IncrementStoredVariable with Encoder1 as parameter and pass the outcome of this function call to SetCallbackRight …. Of course this matches nothing at all…

if you really wanted to pass a parameter when you set the callback, you would write something like this

Encoder1.SetCallbackRight(IncrementStoredVariable, someParameter);

That is the SetCallbackRight function would have to expect two parameters

Side note:
This is not how you tell the parameter is a function pointer

@electricpixies

public:
    Encoder();

    void SetCallbackLeft (void (void));
    void SetCallbackRight (void (void));

It’s always easier to read when you define a type for your function pointer

typedef void (*t_callback)(void); // type for conciseness
…
void SetCallbackLeft(t_callback FuncPtr);