Re: Ada and C++; Any Gurus Out There?

[Tucker Taft <stt@averstar.com>]

Decker, Christian R wrote:
> ...
> 
> Now, I know one can declare the C++ function as 'extern "C" blah blah' but
> this really is a work around and not a
> solution.  I am looking for a way to simply link Ada and C++ object files
> such that no modifcations need to
> be made to the C++ code.  I also would like to only have to mess with the
> Ada code or Ada compiler/linker
> options id possible.

Few if any Ada compilers understand the mangling gyrations of the typical
C++ compiler.  Hence you need to use extern "C".  You don't need
to modify the existing C++ code to do this.  You could write an
interfacing layer in C++ that uses extern "C" for what it exports to Ada
(or C), and contains calls to the existing C++ routines of interest.

Also, if there is no overloading in the C++ header file, you
can rename the existing C++ header, create a new one with the
old name, consisting simply of:

extern "C" {
#include "renamed_header.h"
}

> ...
> Thanks!
> Chris

-- 
-Tucker Taft   stt@averstar.com   http://www.averstar.com/~stt/
Technical Director, Distributed IT Solutions  (www.averstar.com/tools)
AverStar (formerly Intermetrics, Inc.)   Burlington, MA  USA