[C++-sig] splitting it into multiple pieces

[greg Landrum]

Today while trying to build my BPLv2 stuff under windows using MSVC++, I 
got this beauty of an error:
>compiler limit : internal structure overflow
>
>The compiler has run out of memory. Your program needs to be simplified, 
>perhaps by splitting a large source code file into smaller files.

(explanation from 
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vccore/html/vcerrFatalErrorC1204.asp)

I've been thinking about splitting my project up into multiple files 
anyway; I guess this is MSVC's way of telling me that the time has 
come.  Now I just need to figure out how.

The problem is that I've got a bunch of interconnected objects:
Molecules are made up of Atoms and Bonds (and have GetAtom/Bond methods)
Atoms and Bonds each contain a pointer back to their parent Molecule (and 
have GetParent methods)

I'd like to have separate modules for Mols, Atoms and Bonds.  Can I do this 
given the interdependencies?  If so, is there a convenient example laying 
around somewhere I can look at/steal code from?

thanks,
-greg