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Date: Thu, 18 Dec 2008 13:47:17 +0100
From: Georg Bauhaus <rm.dash-bauhaus@futureapps.de>
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Subject: Re: networking support?
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Date: 2008-12-18T13:47:17+01:00
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Oliver Kowalke schrieb:
> is it true that I can call C functions and C++
> classes from Ada?

You can call C functions (and probably anything that
uses C calling conventions, on the same platform).
Have a look at Interfaces.C.  This package is defined
by the Ada language.

A similar feature exists for C++ classes, at least
with some compilers, covering some amount of C++.

> If yes - what is the prefered usage: should I implement functionality (for
> isntacne networking) in C++ classes and call them from Ada or use the
> C-functions (system calls) and implement the classes/behaviour in Ada (get
> benefits from Ada's safety)?

How would your program benefit from first wrapping system
functions (that use C conventions) in C++ classes only for
having to match Ada's O-O types and C++'s O-O types in
a second step?
Seems like an artificial setup to me.