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From: dewar@gnat.com (Robert Dewar)
To: rth@redhat.com, steve@moshier.net
Cc: gcc@gcc.gnu.org
Subject: Re: real.c fails floating point tests
Date: Fri, 18 Oct 2002 09:11:00 -0000	[thread overview]
Message-ID: <20021018143351.CE144F28CC@nile.gnat.com> (raw)

> Previously the REAL_VALUE_TYPE could not contain auxiliary
> information, because often it was actually just emulating a host computer
> double.  If you have removed that restriction then you can put various
> other items into the data structure and then it looks like it would be
> simple to make the 160-bit precision follow some arithmetic rules that
> are easier to analyze and test.

I definitely agree with this analysis. High precision is never an adequate
susbtitute for well defined axiomatic properties when it comes to fpt.

             reply	other threads:[~2002-10-18 14:33 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-10-18  9:11 Robert Dewar [this message]
  -- strict thread matches above, loose matches on Subject: below --
2002-10-17  8:55 Joern Rennecke
2002-10-17 13:44 ` Richard Henderson
2002-10-17  6:00 Robert Dewar
2002-10-17  5:22 Robert Dewar
2002-10-16  9:58 Robert Dewar
2002-10-16 10:12 ` David Edelsohn
2002-10-16 10:16 ` Andrew Haley
2002-10-16 11:30   ` Stephen L Moshier
2002-10-16 10:23 ` Gabriel Dos Reis
2002-10-16 11:54 ` Mark Mitchell
2002-10-16 15:54   ` Richard Henderson
2002-10-16 16:31     ` Mark Mitchell
2002-10-16  9:28 Robert Dewar
2002-10-16  8:19 Stephen L Moshier
2002-10-16  9:47 ` Gabriel Dos Reis
2002-10-16 14:54 ` Richard Henderson
2002-10-16 15:29   ` Stephen L Moshier
2002-10-16 15:36     ` Richard Henderson
2002-10-16 17:20       ` Stephen L Moshier
2002-10-16 21:16         ` Richard Henderson
2002-10-18  7:32           ` Stephen L Moshier

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