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Re: ACATS c380004

From: Duncan Sands <duncan dot sands at math dot u-psud dot fr>
To: gcc at gcc dot gnu dot org
Cc: Robert Dewar <dewar at adacore dot com>,Richard Kenner <kenner at vlsi1 dot ultra dot nyu dot edu>, schonberg at adacore dot com
Date: Tue, 11 Jan 2005 15:28:08 +0100
Subject: Re: ACATS c380004
References: <10501102044.AA27358@vlsi1.ultra.nyu.edu> <200501111421.09317.duncan.sands@math.u-psud.fr> <41E3E1AE.7030907@adacore.com>

Hi Robert,

> > In the dark old days, the GNAT compiler didn't allocate the maximum possible size for records
> > with default discriminants.  They changed it a some point, for efficiency reasons IIRC.
> 
> That's a wrong memory, GNAT has always allocated the maximum size. Any
> other implementation is very error prone and extremely complex, and
> also requires implicit heap allocation which we avoid in GNAT. Really
> allocating the maximum is the only feasible implementation, and it is
> the only one used by current ADa 95 implementations as far as I know.

yes I suppose I am remembering it wrong - it was a long time ago.

All the best,

Duncan.

Follow-Ups:
- Re: ACATS c380004
  - From: Robert Dewar

References:
- Re: ACATS c380004
  - From: Richard Kenner
- Re: ACATS c380004
  - From: Duncan Sands
- Re: ACATS c380004
  - From: Robert Dewar

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