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From: Kilgallen@SpamCop.net (Larry Kilgallen)
Subject: Re: Discriminants constraining unconstrained array types
Date: 20 Oct 2001 15:55:25 -0500
Date: 2001-10-20T15:55:25-05:00	[thread overview]
Message-ID: <hniaGoqA6Kwe@eisner.encompasserve.org> (raw)
In-Reply-To: 3BD1B6F3.F90883D7@worldnet.att.net

In article <3BD1B6F3.F90883D7@worldnet.att.net>, James Rogers <jimmaureenrogers@worldnet.att.net> writes:

> type Unconstrained_Type is array(Positive range <>) of Integer;
> 
> type Inadvised_Record_Type (Max : Positive) is record
>    Buffer : Unconstrained_Type(1..Max);
> end record;
> 
> The compiler must identify the size of Inadvised_Record_Type.
> The problem arises because the array constraints are determined
> at run-time and not at compile-time. The only vaguely reasonable
> option for the compiler is to set Buffer'Size equal to
> Positive'Last * Integer'Size.

Why is that the only reasonable option ?



  parent reply	other threads:[~2001-10-20 20:55 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-10-20 15:49 Discriminants constraining unconstrained array types Matthew Woodcraft
2001-10-20 17:39 ` James Rogers
2001-10-20 19:04   ` Damien Carbonne
2001-10-20 20:55   ` Larry Kilgallen [this message]
2001-10-20 21:43   ` Jeffrey Carter
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