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From: =?iso-8859-15?Q?Yannick_Duch=EAne_=28Hibou57=29?=
 <yannick_duchene@yahoo.fr>
Newsgroups: comp.lang.ada
Subject: Re: Ada noob here! Is Ada widely used?
Date: Sat, 05 Jun 2010 11:24:57 +0200
Organization: Ada At Home
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Date: 2010-06-05T11:24:57+02:00
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Le Sat, 05 Jun 2010 10:04:52 +0200, Nasser M. Abbasi <nma@12000.org> a  =

=E9crit:
>>> and in what area(s) does it excel, e.g. data processing, number  =

>>> crunching, graphics, etc?
>>
>
>> It is excellent in these areas, and probably in many others...
>> _________________________________________________________
>
> I think the fact that  complex numbers are not a build-in primitive da=
ta  =

> type in Ada makes it bit harder to use for number crunching.
>
> Fortran, for example, had complex numbers build into the language.  I =
 =

> wonder why the orginal designers did not add complex data type to the =
 =

> design of Ada.
>
> Other than that, I think Ada would be a very good choice for number  =

> crunching, but from what I see, it is very little used in this area.
>
> --Nasser
May be possible reason is that a complex number is seen a composite type=
,  =

and how would one fix the type of its two component ? Float ? Fixed ? Bo=
th  =

the same ? Different ? And so on. Unless with a special ugly/heavy synta=
x,  =

difficult to image a way to simply declare a complex type in Ada (unless=
  =

you do it the C way : one type for all use, without constraints, and no =
 =

other choices).


-- =

There is even better than a pragma Assert: a SPARK --# check.
--# check C and WhoKnowWhat and YouKnowWho;
--# assert Ada;
--  i.e. forget about previous premises which leads to conclusion
--  and start with new conclusion as premise.