OSDev.org

I've been working on compilers for a little while now and I was wondering what do you guys find the best parsing technique to be when dealing with C++, if you have any experience. Please don't mention anything about parser generators

C++ is an absolutely horrendous language to parse. Personally I'd steer well clear. However, if you really do want to go there, then the clang project think (and I agree with them) that a hand-crafted recursive descent parser is the way to go. It means you can use a left-recursive grammar with all the lookahead you want, and allows for the context-sensitive checks that you require when parsing a non-context-free language like C++.

Regular expressions should be useful

Hardly - only for the lexing stage.

http://www.nobugs.org/developer/parsingcpp/
and also
http://www.reddit.com/r/programming/comments/7uhw7/parsing_c/

clange