Thread: nested #includes

I have two classes class a and class b
I #include class a in class b anb class b in class a the reason for this is that class a needs to interact with class b and vice versa. I have my #include guards in but I still get the error message #include nested too deeply. Is there a way to get around this.

Code:

#include "classb.h"

#ifndef CLASS_A
#define CLASS_A

class A{

public:
            .
            .
            .
const string A_Attacks_B(classBobject&)

private:
            .
            .
};



#include "classa.h"

#ifndef CLASS_B
#define CLASS_B


class A{

public:
            .
            .
            .
const string B_Attacks_A(classAobject&)

private:
            .
            .
};

This is the basis of my code then in main I call each function

In fact, you should use a forward declaration for both files, since you should prefer a forward declaration over including a header.

Thanks all that worked but now I am getting an error message that classA has not been declared

Code:

#ifndef
#define

#include "classb.h"

class A{

public:
            .
            .
            .
const string A_Attacks_B(classBobject&)

private:
            .
            .
};


#ifndef
#define

#include "classa.h"

class B{

public:
            .
            .
            .
const string B_Attacks_A(classAobject&)

private:
            .
            .
};

the code is seperate header files

also I did use a forward declaration but I got errors about invalid use of a struct classA or invalid use of struct classB

No there are no other functions but that one that uses it it is the only instance i have of that object

You should remove #include "classb.h" and put

Code:

class B;

You should do the same for class A. If you get errors doing that post your attempt and the exact errors.

If you used struct instead of class, the compiler might complain because you use struct in one place and class in another.