Re: looped include

From:

Barry <dhb2000@gmail.com>

Newsgroups:

comp.lang.c++

Date:

Sun, 07 Oct 2007 20:22:33 +0800

Message-ID:

<feamor$t5a$1@news.cn99.com>

Dragilla wrote:

Hi, I have a problem....
I can show you what this is about in an example:
There are 4 files:

a.c:
#include "a.h"

int main() {

        B* b = new B();
        A* a = new A();

        a->bref = b;
        b->aref = a;

        b->aref->test();
        a->bref->test();
        return 0;
}

b.c:
#include "b.h"

a.h:
#ifndef A_H
#define A_H
#include "b.h"

#include <stdio.h>
#include <stdlib.h>

class B;

// class B;
not needed

class A {
        public: B* bref;
        public: A() {;}
        public: void test()
        {
                printf ("test in A\n");
                bref->test();
        }
};

#endif

b.h:
#ifndef B_H
#define B_H
#include "a.h"

//#include "a.h"
not needed

#include <stdlib.h>
#include <stdio.h>

class A;
class B {
        public: A* aref;
        public: B() {;}
        public: void test() { printf ("test in B\n"); }
};

#endif

Why does this not compile? I get errors in line with code: bref-

test(); in a.h

PLEASE help.

regards,