From: Stephen Leake <stephen_leake@stephe-leake.org>
Subject: Re: Pragma for conditional compilation? (Ada 2005 vs. 95)
Date: Thu, 27 Sep 2007 05:52:14 -0400
Date: 2007-09-27T05:52:14-04:00 [thread overview]
Message-ID: <uejgkmo4x.fsf@stephe-leake.org> (raw)
In-Reply-To: 1190879769.361848.188220@22g2000hsm.googlegroups.com
Jerry <lanceboyle@qwest.net> writes:
> Is there a pragma to designate some lines of Ada for conditional
> compilation depending on if the compiler is Ada 2005 or not?
>
> I have made some bindings that use some of the declarations from Annex
> G.3 which relates to vector-matrix stuff which is new to Ada 2005. If
> the compiler provides those declarations (i.e., is 2005), I want to
> use the compiler's version because I figure that is the cleanest way
> to get things done. If the compiler is Ada 95, I instead want to
> provide the declarations myself.
>
> Currently, I handle this by commenting out the declarations of my own
> if Ada 2005 and uncomment them if Ada 95. (There are a couple of
> "with" and "use" lines that also have to be (un)commented but it is a
> similar situation.)
>
> I'm guessing this is an Ada "no-no" but would be interested to know
> for sure.
There is no standard pragma that does this.
GNAT provides the gnatprep tool, which is a preprocessor, that could
do this.
A more portable way is to have to different source files, and use the
build tools to select the proper one. GNAT project files can do that.
--
-- Stephe
next prev parent reply other threads:[~2007-09-27 9:52 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-27 7:56 Pragma for conditional compilation? (Ada 2005 vs. 95) Jerry
2007-09-27 9:31 ` Georg Bauhaus
2007-09-27 16:59 ` Pascal Obry
2007-09-27 21:56 ` Jerry
2007-09-27 9:52 ` Stephen Leake [this message]
2007-09-27 9:58 ` Brian Drummond
2007-09-27 15:26 ` anon
2007-09-27 21:46 ` Jerry
2007-09-28 4:55 ` Jeffrey R. Carter
2007-09-28 12:15 ` Jeffrey Creem
2007-09-28 14:06 ` Jean-Pierre Rosen
2007-09-28 15:24 ` Ludovic Brenta
2007-09-28 16:08 ` Jean-Pierre Rosen
2007-09-28 17:54 ` Georg Bauhaus
2007-09-28 18:19 ` Pascal Obry
2007-09-28 20:02 ` Stefan Bellon
2007-09-28 20:14 ` Pascal Obry
2007-09-28 20:26 ` Stefan Bellon
2007-09-29 10:24 ` Stephen Leake
2007-09-28 20:04 ` Simon Wright
2007-09-28 20:11 ` Pascal Obry
2007-09-29 10:29 ` Stephen Leake
2007-09-29 10:18 ` Stephen Leake
2007-09-28 18:07 ` anon
2007-09-29 22:13 ` Jerry
2007-09-30 10:54 ` Stephen Leake
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