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From: Pascal Obry <p.obry@wanadoo.fr>
Newsgroups: comp.lang.ada
Subject: Re: ada vs. cpp
Date: 04 Oct 2001 18:26:33 +0200
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Pi <pi3_1415926536@yahoo.ca> writes:

> Hmm, Objects ...
> 
> 1st : Ada will help you find more bugs at compile time than C++
> So your developpement time tends to be faster.
> But consider that interactions with the OS are more difficult.
> Not much more, but slightly.

Ok.

> 
> Remember that Ada is at his very best if you give him few
> input, billions of calculations on numbers and than few output.

Not true.

> You say that it's text-based.
> Do you have to parse the text-input?
> In this case I would consider using Perl[1] for the parsing
> and than the actual treatement in Ada.
> (Strings aren't Ada's strength)

String not, but what about GNAT.Spitbol, GNAT.Spitpat, GNAT.Regpat,
GNAT.Regexp, GNAT.AWK and GNAT.Expect ?

> 2nd : Objects : 
> as long as you dont need special features you're fine with Ada.
> Just consider a package like an object and you're cool.

A package like an object ???? Maybe like a class of objects...!!! Pakckage is
a way to organize things and to build abstractions like ADT and ASM.

> 
> 3rd : Heritage
> Hmm, package heritage is ok, tagged types work too
> 
> 4th : Polymorphism
> Argh, only possible with tagged type and true crap, so stick with C++
> Or you can try to hand-code it, but it's far less flexible and
> error-prone. But IMNSHO still better than Ada's tagged type variant.

My experience differ !

> 5th : Multiple Heritage
> Not possible with Ada.
> 
> [1] Perl is your worst nightmare for big project,
> but the best language for text parsing out there,
> so if you use it, use it *only* for the parsing.

Perl is the worst nightmare for any sized project. The worst nightmare. I
still ask myself how is that possible to "invent" such language ???

Pascal.

-- 

--|------------------------------------------------------
--| Pascal Obry                           Team-Ada Member
--| 45, rue Gabriel Peri - 78114 Magny Les Hameaux FRANCE
--|------------------------------------------------------
--|         http://perso.wanadoo.fr/pascal.obry
--|
--| "The best way to travel is by means of imagination"