forward decleration error

[FinalFortune]

this is my header file:

#ifndef PLAYER_H
#define PLAYER_H

/*************** Forward Declerations ****************/
class Turn;
class Current;
class Wait;
/*****************************************************/

/************************************ Player Class *****************************************/
class Player
{
    public:
        Player();

        void endTurn();
        void setTurn(Turn*);
        bool isTurn() const;

        virtual ~Player();

    private:
        Turn* turn;
};
/*******************************************************************************************/

/************************************** State Class ****************************************/
class Turn
{
    public:
        Turn();

        virtual bool isTurn() const = 0;
        virtual void end(Player*) = 0;
};

class Current : public Turn
{
    public:
        virtual bool isTurn() const
        {
            return true;
        }
        virtual void end(Player* p)
        {
            p->setTurn(new Wait());
            delete this;
        }
};

class Wait : public Turn
{
    public:
        virtual bool isTurn() const
        {
            return false;
        }
        virtual void end(Player* p)
        {
            p->setTurn(new Current());
            delete this;
        }
};
/*******************************************************************************************/


#endif 

These are my errors:
In member function `virtual void Current::end(Player*)':|
Player.h|46|error: invalid use of undefined type `struct Wait'|
error: forward declaration of `struct Wait'|

why does it think my forward decleration is a struct? i can't see anything wrong with my code. Please help.

[jsmith]

It doesn't matter. The line of code won't compile unless the compiler can see the complete
body of class Wait, which means you have to #include it (and remove the forward declaration)
or else move the implementation of Current::end() to the .cpp file and #include the header
for Wait there.

BTW, "delete this" is rarely a good thing.

[Bazzy]

there's no difference between class and struct. The problem is that you are calling Wait constructor before it ( the constructor ) is declared ( implicitly in class Wait )

You should move Turn::end on another file to solve this