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From: Vinzent 'Gadget' Hoefler <nntp-2005-03@t-domaingrabbing.de>
Newsgroups: comp.lang.ada,comp.lang.c++
Subject: Re: Teaching new tricks to an old dog (C++ -->Ada)
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Date: Wed, 23 Mar 2005 13:43:45 +0000
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Date: 2005-03-23T13:43:45+00:00
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Ioannis Vranos wrote:

> OK, although O(log(n)) is fairly cheap, let's stick to O(1). However
> personally I think that the value of defined subranges in the style
> -1000, -400 has not any practical use.

So? Let me take a look at some current project:

|type DAC_Range is new Interfaces.Unsigned_8;
|type Offset    is new Interfaces.Integer_8;
|
|--  lookup tables are faster
|type Offset_Skew is array(Offset) of DAC_Range;

So the array indices are - of course - from -127 to 128.

(Of course you can remap that to 0 to 255, but because I am calculating
in signed range for relatively obvious reasons, this is much more
convenient.)


Vinzent.

-- 
worst case: The wrong assumption there actually is one.