Cross-including head file? Can I? How?

[northfly]

I have two head files, and in each of both, I need to use the class defined in another file. For example:

In File1:

class a {
public:
    vector<b*> v;

//......
};

In File2:

class b {
public:
    vector<a*> v;

//......
};

I tried to include file2 in file1 and include file1 in file2. But this will cause error.

How can I reach my goal? Thanks.

If this cannot be done, then I only got one way, that is to combine these two files??? Common, there got be a way......

[ultifinitus]

Hi there! You can use a forward declaration of the two classes in their respective files.

class b;//forward declaration

class a{
public:
     vector<b*> v;
};