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From: Robert Dewar <dewar@gnat.com>
Subject: Re: Ada and C++; Any Gurus Out There?
Date: 1999/06/04
Message-ID: <7j7dc4$jt$1@nnrp1.deja.com>#1/1
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References: <XE953.4227$y6.2357136@WReNphoon3>
 <slrn7lb86u.634.gisle@apal.ii.uib.no> <7j4lua$2rs$1@nnrp1.deja.com>
 <slrn7ldch2.nqu.gisle@apal.ii.uib.no>
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Newsgroups: comp.lang.ada
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Date: 1999-06-04T00:00:00+00:00
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In article <slrn7ldch2.nqu.gisle@apal.ii.uib.no>,
  gisle@apal.ii.uib.no (Gisle S�lensminde) wrote:
> so 'extern C' is neccesary  to make C linkage, and not a
> workaround.
>
> --
> Gisle S�lensminde ( gisle@ii.uib.no )

Fine, but this is comp.lang.ada, not comp.lang.c, so we are
interested in interfacing from C++ to Ada (C is not in
necessarily in sight unless we drag it in).

And the answer is no, it is not necessary to use extern C in
interfacing between Ada 95 and C++ if your implementation (like
GNAT) supports interfacing directly to C++.

See the example of this interfacing that comes with the GNAT
distribution.

Robert Dewar
Ada Core Technologies


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