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Newsgroups: comp.lang.ada
Date: Tue, 16 Oct 2018 09:07:56 -0700 (PDT)
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Subject: Re: Least Dangerous Way to Do This ?
From: Shark8 <onewingedshark@gmail.com>
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Xref: reader02.eternal-september.org comp.lang.ada:54605
Date: 2018-10-16T09:07:56-07:00
List-Id: <comp.lang.ada>

On Monday, October 15, 2018 at 1:36:09 PM UTC-6, pat...@spellingbeewinnars.=
org wrote:
> Okay, I worked through the last piece. You know what I am doing.....
>=20
> I am thinking about using the Ada.XXX and Gnat.XXX libraries from GnuCOBO=
L !
>=20
> Hee-hee, I know COBOL isn't going to have a lot of fans here but it is ac=
tually a lot of fun.

Ada has a whole section in Annex B for interfacing to COBOL -- "B.4 Interfa=
cing with COBOL" -- online here: http://www.ada-auth.org/standards/2xrm/htm=
l/RM-B-4.html

Exporting to COBOL will be as easy as saying:
  Function J return Integer
    with Export, Convention =3D> COBOL;

And Importing is similar:
  Function K return Interfaces.COBOL.Floating
    with Import, Convention =3D> COBOL;

Actually given Ada's ease with interfacing like this, and the SPARK provers=
, I'm surprised that the banking industry hasn't leveraged Ada into its inf=
rastructure, using Ada to prove the correctness of the system and COBOL for=
 the fast reporting/record-processing as-needed.

>=20
> I will post back with some examples just in case someone cares :)

I think that would be pretty cool.