help with makefile for a C++ code

[mpakala]

hi
I instaniate object of one class in another and vice-versa. I get errors which seem to be because of dependencies not set right in makefile and the type is not available during instatniation.
error: B.h: error: ISO C++ forbids declaration of ‘A’ with no type
Please give me some suggestions

Makefile :

OBJS = 	main.o A.o B.o

.cpp.o:
	g++ -g -Wno-deprecated -c $<


run:	$(OBJS)
        g++ -g -Wno-deprecated -o $@ $(OBJS)


main.o:	main.cpp 

A.o:  A.cpp

B.o:  B.cpp

//header file A.h
#ifndef _A_H_
#define _A_H_

#include "B.h"

class A{

A a; //object of class A
B b;//object of class B

void print(){}
}

#endif

//cpp file A.cpp
#include "A.h"

void A::print(){
cout << "A" << endl;
}



//header file B.h
#ifndef _B_H_
#define _B_H_

#include "A.h"

class B{

A a;//object of class A
B b;//object of class B

}
#endif

//cpp file B.cpp
#include "B.h"
void B::print(){
cout << "B" << endl;
}

regards
Kiran

[Danny]

Your declaration of class A contains a data member of the same type, A:

class A{
A a; //object of class A
B b;//object of class B
void print(){}
}

This is illegal in C++. A class can't have another instance of itself as a data member. Did you mean to declare a constructor perhaps? Or a pointer? Reference?

[mpakala]

hi

yes im sorry
A* a;
B* b;
regards
Kiran