VS 2008的C ++编译错误

Question

I have a couple of compile errors which are probably staring at me but I can't seem to resolve them. I've had a go at checking for solutions with the brackets, semi-colons and #includes but no joy. This is in VisualStudio 2008 with C++.

The errors are;

Error 1 error C2653: 'Game' : is not a class or namespace name logs.h 34

Error 2 error C3861: 'SetState': identifier not found logs.h 34

Found here in logs.h

Game::SetState(2);

Full header;

# pragma once

#include "DarkGDK.h"
#include "Screen.h"

class LogS:public Screen
{
    public:
        LogS():Screen()
        {

            //to be added
        }
        void SetBgrnd();
        void Skip();
};

void LogS::SetBgrnd()
{
    s_sprite_id = 1;
    dbShowSprite(11);
    Show();
}

void LogS::Skip()
{
    if(dbReturnKey())
    {
        dbHideAllSprites();
        Game::SetState(2);
    }
}

And the Game.h where it should using the static function from;

# pragma once

#include "DarkGDK.h"
#include "LogS.h"

class Game
{
    static int gameState;

    public:
        Game();
        static void SetState(int gameState);

};

Game::Game()
{
    LoadImages();
    SetState(1);
}

inline void Game::SetState(gameState& g)
{
    gameState = g;
}

Edited out the non-relevant bits. If you can't tell, I'm new to this :P Any help is appreciated, thanks.

Answer 1

static member variables must be defined outside class:

class Game
{
   static int gameState;

public:
    Game();
    static void SetState(int gameState);

};
int Game::gameState = 0;

And as pointed out by @Drew Dormann:

Remove #include "LogS.h" from Game.h.

Game.h doesn't need the definition of LogS to compile.

Add #include "Game.h" to LogS.h.

LogS.h needs the definition of Game to compile.