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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: Game Programming / Graphics
Newsgroups: comp.lang.ada
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Date: Sun, 3 Apr 2005 10:53:01 +0200
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Date: 2005-04-03T10:52:54+02:00
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On 2 Apr 2005 11:54:40 -0800, jsnX wrote:

> What is Ada's numerics model like? I've
> heard that it's better than C++'s, but I haven't seen any specifics.

The main difference is that in C++ you specify what your computer has. In
Ada you do what you nee:

// C++
double X; 

-- Ada
type Something is digits 8 range 0.0..100_000.0;
X : Something;

I.e. Ada's numerics are based on a contract model. Ada's numerics are true
types. You can have different numeric types and the compiler will prevent
you from mixing them, if you do not define corresponding operations. As
types they may have constrained subtypes with range checks enforced. Other
differences are that Ada has fixed point binary and decimal numbers
additionally to the floating-point ones.

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de