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Date: Tue, 25 May 2010 14:08:43 +0200
From: Georg Bauhaus <rm.dash-bauhaus@futureapps.de>
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Newsgroups: comp.lang.ada
Subject: Re: Ada noob here! Is Ada widely used?
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Date: 2010-05-25T14:08:43+02:00
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On 25.05.10 13:41, Anonymous wrote:
>> BTW, do you know what language Ada is written in? I'd guess C and asm.
> 
> If you do some research you can find an incredible web site discussing the
> Ada competition in some depth. And here on this very list we have some of
> the people who participated in that competition who can surely answer your
> question.
> 
> I can tell you this for certain: the IBM implementation was not written in
> C, at least not on an IBM machine. IBM didn't have a viable C compiler
> until much later. Furthermore, assembler is the language of choice on IBM
> platforms. It may have been written elsewhere and cross-compiled though.
> I'll be interested to see answers to your question, thanks for asking it!

GNAT is written in Ada, after being drafted in SETL;
a precursor of GNAT was Ada/Ed, an Ada interpreter.
This is what I remember from reading GNAT history.

Another Ada compiler, a variant of AdaMagic, will
output a C program.