Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!wasatch!helios.ee.lbl.gov!pasteur!dogwood.Berkeley.EDU!faustus
From: faustus@dogwood.Berkeley.EDU (Wayne A. Christopher)
Newsgroups: comp.lang.c++
Subject: Linking C++ into Lisp
Message-ID: <15363@pasteur.Berkeley.EDU>
Date: 11 Jul 89 18:53:39 GMT
Sender: news@pasteur.Berkeley.EDU
Lines: 19

We're writing a large application that will probably be partly Allegro Common
Lisp and partly GNU C++.  I have a few questions for anybody who has done
this sort of thing.

Are there any problems calling C++ code using the foreign function interface,
assuming it is declared extern "C"?

C++ has a special crt0.o, which, for one thing, calls constructors and
destructors for external instances.  If I don't have any of these, will
there be any problem with dynamically loading C++ code into Lisp?  How
about the tables used by virtual functions?  Are these global, or just
done in-line?

Is the C++ heap storage manager likely to interfere with Lisp's storage
allocation?

Any other pitfalls to watch out for?   Thanks,

	Wayne