Question about C++ exceptions and g++

[Craig Rodrigues <rodrigc at mediaone dot net>]

Hi,

I have some C++ code which uses exceptions which compiles with
gcc 2.95.2 but causes the compiler to give an error with
gcc 2.97 20001005 (experimental).

The code can be reduced to something like:
======================================================================
class Exception;

// Define Exception in another file

typedef Exception foo;



int c(int a) 
	throw (Exception)
{

return 0;

}
=======================================================================

If this code is in a file, a.cpp, which I compile with:
g++ -c a.cpp

I get the error:

a.cpp:10: invalid use of undefined type `class Exception'
a.cpp:1: forward declaration of `class Exception'

Is gcc 2.97 doing the right thing, or is it being too strict?
The code I have defines Exception in another file (b.cpp), and
a.o and b.o are linked together at the final stage of compilation.

This code seems to compile under gcc 2.95.2 and a few other compilers,
so I was wondering if anyone could clarify this for me.

Thanks.
-- 
Craig Rodrigues        
http://www.gis.net/~craigr    
rodrigc@mediaone.net