Re: Calling C++ from Ada

[Yves Bailly <kafka.fr@laposte.net>]

On Sat, 13 May 2006 13:02:33 -0400, Jeffrey Creem wrote:
> Yves Bailly wrote:
>> I'm trying to use C++ classes from an Ada program. Searching around, I
>> found some examples, but none implying a non-default constructor.
> 
> Direct interface to C++ from Ada is outside the scope of the Ada (at 
> least 95) LRM. 

I'm aware of this. It's not much better either in the new 2005(6?7?)
standard.

> GNAT has some vendor specific pragmas that can be used
> but I have never heard of any widespread use of these pragmas in any
> publically avaialble code.

I tried to use them, with some success on simple things. At least for now,
these vendor-specific pragmas are not a real issue, I'm just experimenting.

> You probably need to interface to it the same way a C programmer would -
> with non classed based externs.

I guess I'll end doing this... 

To paint a little of the whole story, I was looking for a tool allowing
to automagically generate an Ada thin binding for a C++-based library.
To many classes and methods to create it "by hand". However I didn't find
any, so I was thinking on creating one myself.

Thanks anyway for your lights.

Best regards,

      Yves Bailly