INTERNAL Compiler error with VC 7.1 compiler

[Ravikiran]

Hi,

I am trying to compile a code developed using VC6 in VC 7.1 compiler.

I get a "Internal compiler error" for what I think is a very simple
piece of code.

I tried to reproduce the problem and it is possible with the code below.

//------------------------------------
//ForwardDecl.h
//------------------------------------
class CString;
class Temp
{
public:
Temp(const CString& szStr);
};

//------------------------------------
//ForwardDecl.cpp
//------------------------------------
# include <afx.h>
# include "ForwardDecl.h"
int _tmain(int argc, _TCHAR* argv[])
{
CString szTemp;
Temp t(szTemp);
return 0;
}

It gives a ICE on line 1 of ForwardDecl.h.
Of course I can include <afx.h> in the ForwardDecl.h and get away with it.
But I don't want to unnecessarily include a header.
Is there any other solution?

Best Regards,
ravi.

PS: If you want to reply directly, pl. remove the .net from my mail address.
Sorry for the inconvenience!

[Bo Persson]

"Ravikiran" <ra*********@siemens.com.net> skrev i meddelandet
news:be**********@news.mch.sbs.de...

Hi,

I am trying to compile a code developed using VC6 in VC 7.1 compiler.
I get a "Internal compiler error" for what I think is a very simple
piece of code.

I tried to reproduce the problem and it is possible with the code below.
//------------------------------------
//ForwardDecl.h
//------------------------------------
class CString;
CString is no longer a class, but a typedef for a template. You cannot
forward declare it like this (probably not at all).
Bo Persson
bo**@telia.com

class Temp
{
public:
Temp(const CString& szStr);
};

[Ken Alverson]

"Bo Persson" <bo**@telia.com> wrote in message
news:OD**************@TK2MSFTNGP11.phx.gbl...

"Ravikiran" <ra*********@siemens.com.net> skrev i meddelandet
news:be**********@news.mch.sbs.de...

I get a "Internal compiler error" for what I think is a very simple
piece of code. <snip> class CString;

CString is no longer a class, but a typedef for a template. You cannot
forward declare it like this (probably not at all).

Yes, but the compiler shouldn't puke when it sees such a declaration; it
should give a reasonable error message. ICE is always a bug.

Ken

[Artur Laksberg [MSFT]]

>> > I get a "Internal compiler error" for what I think is a very simple

> piece of code.<snip> > class CString;

Thanks for reporting this bug Ravi. We have already fixed this problem --
however it was too late for 7.1 compiler, so the fix will only appear in
the next version.

To avoid the ICE, remove forward declaration of CString -- you don't need
it if you include afx.h.
Yes, but the compiler shouldn't puke when it sees such a declaration; it
should give a reasonable error message. ICE is always a bug.

Correct -- ICE is always a bug.

Artur Laksberg,
Visual C++ Compiler Development Team
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