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Re: [4.3] making a few real functions work with dfp

From: "Manuel LÃpez-IbÃÃez" <lopezibanez at gmail dot com>
To: "Ben Elliston" <bje at au1 dot ibm dot com>
Cc: gcc-patches <gcc-patches at gcc dot gnu dot org>
Date: Tue, 28 Nov 2006 09:50:45 +0000
Subject: Re: [4.3] making a few real functions work with dfp
References: <6c33472e0611211011r161d99c6o67eb0e260f357f4b@mail.gmail.com> <20061128054744.GA11576@ozlabs.au.ibm.com>

On 28/11/06, Ben Elliston <bje@au1.ibm.com> wrote:

> This patch makes exact_real_truncate() and real_isinteger() handle
> dfp values correctly. In order to do so, it adds a
> decimal_normalize() function that normalizes a decimal floating
> point number.

Why are you normalising the decimal float values?  The IEEE 754R draft
standard specifically states that decimal float values are not
normalised by design.  1.0 and 1.00 are both distinctly representable.

Because otherwise exact_real_truncate and real_isinteger don't work.

References:
- [4.3] making a few real functions work with dfp
  - From: Manuel LÃpez-IbÃÃez
- Re: [4.3] making a few real functions work with dfp
  - From: Ben Elliston

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