Using class from a different file as a global variable generates "missing storage" er

[rnot]

I encounter the following error mesagess (Linker errors I think cause it compiles well) whenever I try to define my classes in a global scope. I have four files: DataGrabber.h, Datagrabber.cpp , EDRTSV1.h, EDRTSV1.cxx
I am using VC++ 6 (Yep I know).

[code]
// DataGraber.h

#ifndef DataGrabber
#define DataGrabber
#include "EDRTSV1.h"

class EDRTSFamStn{
//...Declirations

};

#endif

//DataGrabber.cpp
#include "DataGrabbe r.h"

////**** Class EDRTSFamStn Implementation ****////


// EDRTSV1.h
#include "DataGrabbe r.h"

///*** Gloabal Variables ***///

extern EDRTSFamStn* testing;

//EDRTSV1.cxx
#include "EDRTSV1.h"
EDRTSFamStn* testing;

[ /CODE]

Compiling...
EDRTSV1.cxx
DataGrabber.cpp
e:\stdt1\edrtsv 1\edrtsv1.h(59) : error C2143: syntax error : missing ';' before '*'
e:\stdt1\edrtsv 1\edrtsv1.h(59) : error C2501: 'testing' : missing storage-class or type specifiers

If I delete the testing variable both from the h and the cpp file, then it builds correctly.

Appreciate any help on that matter.
Thanks in advance,
Ran

[Banfa]

This is because in

// DataGraber.h

#ifndef DataGrabber
#define DataGrabber
#include "EDRTSV1.h"

class EDRTSFamStn{
//...Declirations

};

#endif

You have included the file EDRTSV1.h which tries to use the type EDRTSFamStn before it has been declared further down in the file.

You probably need to reorganise your files, if DataGrabber.h defines types and
EDRTSV1.h declares data then EDRTSV1.h should probably include DataGrabber.h, not the other way round.



I can see that EDRTSV1.h includes DataGrabber.h but if DataGrabber.h is the first thing included (as in DataGrabber.c) then by the time you get to include DataGrabber.h in EDRTSV1.h you have already entered the include protection in DataGrabber.h so nothing is included.

It is always a mistake to include A.h in B.h and include B.h in A.h