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Re: ACATS c380004

From: Robert Dewar <dewar at adacore dot com>
To: Duncan Sands <duncan dot sands at math dot u-psud dot fr>
Cc: Richard Kenner <kenner at vlsi1 dot ultra dot nyu dot edu>, gcc at gcc dot gnu dot org,schonberg at adacore dot com
Date: Tue, 11 Jan 2005 09:24:46 -0500
Subject: Re: ACATS c380004
References: <10501102044.AA27358@vlsi1.ultra.nyu.edu> <200501111421.09317.duncan.sands@math.u-psud.fr>

Duncan Sands wrote:

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.

Follow-Ups:
- Re: ACATS c380004
  - From: Duncan Sands

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

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