data structures

[Deepan Chakravarthy]

Hello,
 We are in the process of designing compiler for another language. We 
use gcc for most part of it. We want to know how classes, inheritance  
are implemented in g++ . We find that is not separate dot y (.y) file to 
list all the grammar rules for C++.  The parser seems to take care of 
everything.

 Can someone tell me more details about the data structures used to 
implement inheritance concept, etc.

Thanks
Deepan
www.codeshepherd.com