Cyclic dependencies

[xiaohuamao]

Beside declare independent abstract classes, is there any other methods
to solve the problem of cyclic dependencies?Like the following one,
which causes compile error of undefined type.

class Child;

class Parent
{
public:
int a;
Child *myChild;
bool test() {return myChild->b == 0;}
};

class Child
{
public:
int b;
Parent *myParent;
bool test() {return myParent->a == 0; }
};

int main()
{
return 0;
}

 

[Pierre Barbier de Reuille]

Beside declare independent abstract classes, is there any other methods
to solve the problem of cyclic dependencies?Like the following one,
which causes compile error of undefined type.

class Child;

class Parent
{
public:
int a;
Child *myChild;
bool test() {return myChild->b == 0;}
};

class Child
{
public:
int b;
Parent *myParent;
bool test() {return myParent->a == 0; }
};

int main()
{
return 0;
}

Very simple, just put the bits that needs both definitions *after* both
definitions actually occured.

class Child;

class Parent
{
public:
int a;
Child* myChild;
bool test();
};

class Child
{
// Same as yours
};

bool Parent::test() { return myChild->b == 0; }

Pierre