On dimanche 12 septembre 2021 17 h 08 min 56 s EDT Martin Storsj� wrote:
> With your implementation, this prints:
>
> 0x0.8p-1022
> 0x1p-1022
>
> However with glibc, this prints:
>
> 0x0.8p-1022
> 0x0p-1022
>
> This looks wrong to me though, and I'd say your version is correct.
> Surprisingly t
Finally, here's the patch to change double formatting in hexadecimal. As you
can see, I managed to find a way to fix it with little changes. Only a few
minor adjustments needed.
As for for formatting long doubles as doubles when their size is the same, the
evidence for it is in glibc's code:
i
On jeudi 9 septembre 2021 17 h 13 min 17 s EDT Martin Storsjö wrote:
> On Tue, 7 Sep 2021, Patrick Northon wrote:
> > Take number 2. I moved the adjustment to the exponent into
> > __pformat_xldouble.
>
> Thanks for this attempt. Now I've poked the implementation to follow it a
> bit better to see
Take number 2. I moved the adjustment to the exponent into __pformat_xldouble.>From b5a399f21cb15f5d3a38b312c7889adede225ff6 Mon Sep 17 00:00:00 2001
From: Patrick Northon
Date: Tue, 7 Sep 2021 12:11:20 -0400
Subject: [PATCH] Fix exponent when formatting long double in hexadecimal.
Some denormali
Actually, nevermind, I got confused when I pulled changes but part of my patch
was overwritten. I'll make another patch with the new proper indentation.
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On lundi 6 septembre 2021 16 h 15 min 57 s EDT Martin Storsj? wrote:
> Yes - hopefully someone will approve it soon, and I'd land it, then you
> can reapply your changes on top of that. As for why git didn't manage to
> apply your patch from the attachment, I don't quite know though.
I think you m
On lundi 6 septembre 2021 06 h 59 min 40 s EDT Martin Storsj? wrote:
> But I feel a little uneasy about the patch - why would we unconditionally
> do a "value.__pformat_fpreg_exponent -= 3;" at the start of
> __pformat_emit_xfloat? I don't see the corresponding adjustment in
> __pformat_xldouble fo
On lundi 6 septembre 2021 06 h 59 min 40 s EDT Martin Storsj? wrote:
> On Sun, 5 Sep 2021, Patrick Northon via Mingw-w64-public wrote:
> > Hi, here's a patch to fix another problem with formatting long doubles in
>
> > hexadecimal. I found a failing case with a denormali
Hi, here's a patch to fix another problem with formatting long doubles in
hexadecimal. I found a failing case with a denormalized value:
printf("0x2.0p-16385l : %La\n", 0x2.0p-16385l);
Complete tests:
#include
#include
#include
int main(int argc, char **argv)
{
puts( " ---
, 28 Aug 2021, Patrick Northon via Mingw-w64-public wrote:
As requested, and after further digging and testing, here's a patch
that fix a
few problems that I have found with long double formatting in
hexadecimal. I
have more coming for doubles in a much revised form.
It fixes:
- Wrong exp
I apologize, I'm wrestling with my mail client. Here's the c file, but not as
an attachment. Does the mailing list block .c files?
#include
#include
#include
int main(int argc, char **argv)
{
puts( " --- Long doubles ---\n");
char buf[100];
snprintf(buf, siz
Here the c test file. I can see it was attached in my sent folder, but it's
not there on the maillist?
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As requested, and after further digging and testing, here's a patch that fix a
few problems that I have found with long double formatting in hexadecimal. I
have more coming for doubles in a much revised form.
It fixes:
- Wrong exponent was set for denormalized long doubles.
- It remove normaliza
On 2021-08-19 02 h 16, Martin Storsjö wrote:
On Thu, 19 Aug 2021, Patrick Northon via Mingw-w64-public wrote:
The behavior should match glibc and format double floating-points in
hexadecimal in normalized form. Also fix a problem where an exponent
of zero wasn't printed.
Can you
The behavior should match glibc and format double floating-points in
hexadecimal in normalized form. Also fix a problem where an exponent of zero
wasn't printed.
From fc5dca78def4aea92c991d78170b7919b7248572 Mon Sep 17 00:00:00 2001
From: Patrick Northon
Date: Mon, 16 Aug 2021 21:06:33 -0400
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