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From: Martin Dowie <martin@dowie-cs.demon.co.uk>
Subject: Re: Array range type for Verdix Ada83 compiler question.
Date: 1999/09/09
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Date: 1999-09-09T00:00:00+00:00
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is your compiler getting confused about which unary minus operator to
use for the '-' in '-100'?

Michael wrote:

> Hi,
>
>   I have a bit a code:
>
>    type ta is array (0 .. 8) of boolean;
>    type Request_Numbers_Array is array (-100 .. 100) of integer;
>
>   The first line compiles just fine.
> The second line says: "index range is ambiguous" and then gives me a
> list of possible types (i.e. Short, Long, Integer . . .)
>
>  I fixed the problem in this way:
> type Request_Numbers_Array is array (Integer range -100 .. 100) of
> integer;
>
>   My question is: Why do I need to do this?
>
>   I would think it could pick a type most suitable for the range.
>
>   Thanks in advance,
>
>   Michael