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From: "Jeffrey R. Carter" <spam.jrcarter.not@acm.nospam.org>
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Newsgroups: comp.lang.ada
Subject: Re: Array Syntax
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Date: 2008-02-29T17:50:55+00:00
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ma740988@gmail.com wrote:
> 
>    Max_Num : constant := 6;
> 
>    type Pixel_Data is
>       record
>          Num_Of_Values        : Int32;
>          Is_Valid_Data           : Boolean;
>       end record;
> 
>    type Pixel_Number is Int16 range 1 .. Max_Num ;

This is not valid. You either want a subtype, a derived type ("new Int16"), or 
just a type ("is range").

>    type Pixel_Data_Array is array
>      ( Pixel_Number range 1 .. Max_Num  )
>      of Pixel_Data;

This can just be

type Pixel_Data_Array is array (Pixel_Number) of Pixel_Data;

Normally, unless you're doing something where you need to match the HW, you 
should avoid types such as those implied by Int16 and Int32. Array indices are 
not such a case, so you'd probably be better off with

type Pixel_Number is range 1 .. Max_Num;

and

type Frame_Number is range 1 .. Frames_In_Buffer;

-- 
Jeff Carter
"I like it when the support group complains that they have
insufficient data on mean time to repair bugs in Ada software."
Robert I. Eachus
91