[Mono-dev] C++ code as Internal call

[Zac Bowling]

Yah,

After to you read that article there is a niche with p/invoking C++. 
You can't safely invoke into C++ libraries unless the functions you want
are exported as C functions (using "extern 'C' {...}"). The vtable and
name mangling differences between each C++ compiler (since they are not
standardized except on IA64 platforms) make this a very very complicated
and ultimately unmaintainable to make part of pinvoke it self (I know, I
tried :-P). There are a few tricks to make it work it on static
functions that only work on one compiler at a time (using the entry
point argument), but they are very dangerous and will break very easily.
So if the library you want to call doesn't provide standard C exports on
its own, then the best solution is write a wrapper library in C++ that
does.

Hope that helps.

----
Zac Bowling
http://zacbowling.com

On Thu, 2006-06-08 at 01:35 +0200, Zoltan Varga wrote:
>                                    Hi,
> 
>   Read this, especially the section "Invoking Unmanaged Code":
> 
> http://www.mono-project.com/Interop_with_Native_Libraries
> 
>    Zoltan
> 
> On 6/8/06, Rusmin Susanto <rusminsusanto at yahoo.com> wrote:
> >
> > As far as I know, Mono is written in C. Internal calls are also written in
> > C. If I have a cool library/package that is written in C++, how do I define
> > it in Mono without having to re-write the library/package in C? I've tried
> > this few times but it seems that it's not working with g++.
> >
> >
> >
> > Regards
> >
> >
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-- 
Zac Bowling <zac at zacbowling.com>