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From: "Randy Brukardt" <randy@rrsoftware.com>
Newsgroups: comp.lang.ada
Subject: Re: ada commercial options
Date: Wed, 20 Apr 2011 18:24:20 -0500
Organization: Jacob Sparre Andersen Research & Innovation
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Date: 2011-04-20T18:24:20-05:00
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"Maciej Sobczak" <see.my.homepage@gmail.com> wrote in message 
news:77c9c293-9fd3-4f3b-a754-83bf3d3be487@p16g2000vbi.googlegroups.com...
On Apr 18, 8:49 pm, "Vinzent Hoefler"
<0439279208b62c95f1880bf0f8776...@t-domaingrabbing.de> wrote:

> > What commerical compilers for ada are available today. I know Gnats
> > available, are there any others still ?
>
>Well, it is a bit confusing without specifying the language variant.
>Obviously, outdated compilers are much less useful today, as they will
>exclude not only modern programming idioms, but also entire modern
>libraries.

The vast majority of "libraries" written for GNAT aren't portable enough to 
use on other compilers, even if they only use Ada 95 features. In my 
opinion, a library isn't portable unless it is compiled on at least two 
different Ada compilers.

>Considering that we have 2011 now, it seems reasonable to ask for Ada
>2005 compilers (I think so). Having this in mind it looks like there
>is only one commercial compiler on the market.

Supposedly, the IBM compiler supports Ada 2005. (They issued an announcement 
to the effect last year.) It might be hard to buy a copy, though (it's hard 
to find it on their website).

The latest version of Janus/Ada supports all of the Ada 2005 syntax and some 
of the features. (But nowhere near all of it yet.)

So that's at least 2.1 commercial compilers (counting GNAT).

                          Randy.