Question

Having trouble when trying to create a class using another class(and 2 inner classes), I think it might be a syntax problem.

The first class

class listitem
{
//listitem.h(11)
public:
    //MONSTER CLASS
    static class monster
    {
    public:
        monster(string thename); 
        monster(void);
        ~monster(void);
    private:
        string name;
        int level;
    };
    //PLAYER CLASS
    static class player
    {
    public:
        player(string _pname, int _plevel, int _maxhp, int _currhp);
        player(void);
        ~player(void);
    private:
        string pname;
        int plevel;
        int maxhp;
        int currhp;
    };
public:
    listitem(player member, monster head);
    ~listitem(void);
private:
    player a;
    monster b;
    //other fields
};

The second class is where I encounter a problem:

class hatelist
{
private:
    vector<listitem> thelist;
public:
    hatelist(listitem newlist);
    int addNewListItem(listitem item);
    hatelist(void);
    ~hatelist(void);
};

The implementation of the offending code:

hatelist::hatelist(listitem inputlist)
{ //hatelist.cpp(6)
    thelist.push_back(inputlist);
}

1>hatelist.cpp
1>c:\...\listitem.h(11) : error C2011: 'listitem' : 'class' type redefinition
1>c:\...\listitem.h(11) : see declaration of 'listitem'
1>c:\...\hatelist.cpp(6) : error C2027: use of undefined type 'listitem'
1>c:\...\listitem.h(11) : see declaration of 'listitem'
1>c:\...\hatelist.cpp(6) : error C2227: left of '->{dtor}' must point to class/struct/union/generic type

Any help would be appreciated.

Answer 1

Did you protect your header with a

#ifndef LISTITEM_H
#define LISTITEM_H
 // All of your code

#endif

If not, it could be getting included twice, causing your error.