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Newsgroups: comp.lang.ada
Date: Fri, 4 Apr 2014 10:45:49 -0700 (PDT)
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Subject: Re: gnatmake error I don't understand
From: Adam Beneschan <adambeneschan@gmail.com>
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Xref: news.eternal-september.org comp.lang.ada:19124
Date: 2014-04-04T10:45:49-07:00
List-Id: <comp.lang.ada>

On Friday, April 4, 2014 10:14:21 AM UTC-7, Simon Wright wrote:
> Robert A Duff writes:
>=20
> > Simon Wright writes:

> >> (in GNAT)

> > In Ada.

> ARM 10.2(29)[1] says "An implementation may restrict the kinds of
> subprograms it supports as main subprograms. However, an implementation
> is required to support all main subprograms that are public
> parameterless library procedures." so I think I was strictly right???
> (apart from the "library level" confusion, sorry).

I agree with you here; in Ada, it is legal to use a subprogram inside a pac=
kage as the main subprogram, if the implementation supports it.  I don't kn=
ow whether there are any implementations that do, however. =20

(I do know of compilers that go beyond the "required to support" requiremen=
ts in other ways, though.  Irvine Compiler's Ada compiler allows some libra=
ry procedures with parameters to be used as main subprograms, as long as th=
e parameters meet certain restrictions, and it uses the command-line argume=
nts.)

                               -- Adam