Forward declaration of class

[h4ever]

This is my global class:

#include "stdafx.h"

MyGlobalClass::MyGlobalClass(int argc, char* argv[]){
	CLParser * CLPars( MyGlobalClass& );
	FILE_ * File( MyGlobalClass& );
	CLPars.ParseArgs(argc, argv);
}

The classes CLParser and file FILE_ was included before global class.
I need to have access to MyGlobalClass within these two classes. But the problem is that MyGlobalClass was not declared before. How to solve this problem?

I tried to access the global class as so:

class FILE_{
public:
	void FILE_( MyGlobalClass& );
}

But MyGlobalClass is undeclared.

[h4ever]

I have updated the code:

Definitions.h:

#ifndef DESTINATION_CONST
#define DESTINATION_CONST
class MyGlobalClass;
#endif 

CLParser.cpp:

#include "stdafx.h"
class CLParser{
private:
	PGlobalInstance * globalInstance;
public:
	CLParser(  MyGlobalClass * globInst ){
	PGlobalInstance = globInst;
	}
        void static ParseArgs(int argc, char* argv[]){}
}

File.cpp:

#include "stdafx.h"

FILE_::FILE_( MyGlobalClass * globInst){
	PGlobalInstance = globInst;
}

main class global.h:

class MyGlobalClass{
	private:	
	CLParser CLPars( MyGlobalClass );
        FILE_ File( MyGlobalClass );
}

Now I get error on the last lines when using default constructor:

error C2146: syntax error : missing ';' before identifier 'CLPars'
error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
warnning C4183: 'CLPars': missing return type; assumed to be a member function returning 'int'

These are errors to the two lines:
CLParser CLPars ...
FILE_ File ...
What does mean these errors and warnings?

[DroolingDonut]

Well, at the very least, your classes need some semicolons:

class MyClass
{
   // ;)
};

And if you do have a circular dependency, yes, you could try using forward declaration.

[Stewbond]

What's in stdafx.h?
Assuming it's empty or irrelevant, do this:

Definitions.h

#ifndef DESTINATION_CONST
#define DESTINATION_CONST
class MyGlobalClass;
#endif  

CLParser.h:

#ifndef CLPARSER_H
#define CLPARSER_H

class PGlobalInstance;
class MyGlobalClass;

class CLParser{
private:
	PGlobalInstance * globalInstance;
public:
	CLParser(  MyGlobalClass * globInst ){
	globalInstance = globInst;
	}
        void static ParseArgs(int argc, char* argv[]){}
};
#endif 

File.h:

#ifndef FILE__H
#define FILE__H
class PGlobalInstance;
class MyGlobalClass;
class File_
{
private:
    PGlobalInstance* globalInstance;
public:
    FILE_( MyGlobalClass * globInst){
	globalInstance = globInst;
    }
};
#endif 

main class global.h:

#include "File.h"
#include "CLParser.h"
class MyGlobalClass{
	private:	
	CLParser CLPars( MyGlobalClass );
        FILE_ File( MyGlobalClass );
};

[h4ever]

U R Good - You found the error (but I did it too). What I did wrong is that
PGlobalInstance should not be there at all. There should be

class CLParser{
private:
	MyGlobalClass * PGlobalInstance;
}

Anyway, I still cannot make it working because of this error:

What's the problem here?

#include "stdafx.h"

FILE_::FILE_( MyGlobalClass * globInst){
	PGlobalInstance = globInst;
}

int FILE_::IsDirectory(std::string path, char * workingPath){
PGlobalInstance->readDirectoryFiles = true;
}

error C2227: left of '->readDirectoryFiles' must point to class/struct/union/generic type

How to solve this?

Edit:
Seems to be solved. The problem was readDirectoryFiles that was static method. I removed the word static and now it seems to work.