C and ADA

[Brian]

Hi I have an ADA function that I'd like to call from my C program.

Is there any way to provide a .h file containing a C prototype for the
ADA function and then link the ADA with the C? Does anyone have any
experience of this?

I'm using a GNU setup on Linux.

Thanks.

[=?UTF-8?q?Harald_van_D=C4=B3k?=]

On Wed, 02 Jan 2008 23:33:10 +0100, Brian wrote:

Hi I have an ADA function that I'd like to call from my C program.

Is there any way to provide a .h file containing a C prototype for the
ADA function and then link the ADA with the C? Does anyone have any
experience of this?

C doesn't define how to mix C with other languages. I believe Ada does
define how to mix Ada with other languages, so you're better off asking
in an Ada newsgroup.

[Keith Thompson]

Brian <no****@nospam.invalidwrites:

Hi I have an ADA function that I'd like to call from my C program.

Is there any way to provide a .h file containing a C prototype for the
ADA function and then link the ADA with the C? Does anyone have any
experience of this?

I'm using a GNU setup on Linux.

Ada (not "ADA"; it's not an acronym) provides mechanisms for
cross-language calls between Ada and C; C does not. The folks in
comp.lang.c won't be able to answer your question. I've redirected
followups just to comp.lang.ada, and I suggest that others do
likewise.

--
Keith Thompson (The_Other_Keith) <ks***@mib.org>
[...]
"We must do something. This is something. Therefore, we must do this."
-- Antony Jay and Jonathan Lynn, "Yes Minister"

[Lucretia]

On Jan 2, 10:33 pm, Brian <[e-mail]:

Hi I have an ADA function that I'd like to call from my C program.

Is there any way to provide a .h file containing a C prototype for the
ADA function and then link the ADA with the C? Does anyone have any
experience of this?

I'm using a GNU setup on Linux.

Thanks.

You can add a "pragma Export" to your procedure and compile it with
gnat. There is a chapter on mixed language programming in the GNAT
manual. But I think you might end up having to build the app with
gnat. Surely porting the procedure would be easier?

Luke.

[Jerry]

On Jan 2, 3:33*pm, Brian <[e-mail]:

Hi I have an ADA function that I'd like to call from my C program.

Is there any way to provide a .h file containing a C prototype for the
ADA function and then link the ADA with the C? Does anyone have any
experience of this?

I'm using a GNU setup on Linux.

Thanks.

This process is described here (as well as the opposite process where
the main program is Ada);

http://gcc.gnu.org/onlinedocs/gnat_u...terfacing-to-C
Also, see the Ada Reference Manual:

http://www.adaic.com/standards/05rm/html/RM-B-3.html
FWIW, I've done this sort of thing using GPC, the GNU Pascal compiler,
with good results.

Jerry