From: Takashi Yano <takashi.yano@nifty.ne.jp>
To: newlib@sourceware.org
Subject: Re: gcc 11.1.0: printf("%.43f\n", 0x1.52f8a8e32e982p-140): printed value is incorrectly rounded
Date: Wed, 1 Dec 2021 21:05:55 +0900 [thread overview]
Message-ID: <20211201210555.9c674f656c750730b279a641@nifty.ne.jp> (raw)
In-Reply-To: <YaY+pvLv14ewtjup@calimero.vinschen.de>
On Tue, 30 Nov 2021 16:09:26 +0100
Corinna Vinschen wrote:
> Could some people with other targets than Cygwin give this patch a try?
> RTEMS, anybody?
I have confirmed new gdtoa code works with a simple printf test
for the following two platforms.
- aarch64 (128bit long double with little endian)
- armv7l (64bit long double with little endian)
Actually, LDBL_MANT_DIG == DBL_MANT_DIG in armv7l platform, so
gdtoa code would not be used. To make gdtoa code be used forcibly,
a simple patch was applied for vfprintf.c and gdtoa-ldtoa.c.
Without this patch, _dtoa_r is used even for long double, which
also works as expected.
--
Takashi Yano <takashi.yano@nifty.ne.jp>
prev parent reply other threads:[~2021-12-01 12:06 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CAL9Mx1uMOz2wfqbMpD_xfA=D9JkpFzVz6AR_DKHK34AvrGOP6w@mail.gmail.com>
2021-11-03 21:26 ` Fwd: " Pavel M
2021-11-04 12:24 ` Corinna Vinschen
2021-11-04 16:48 ` Keith Packard
2021-11-04 17:27 ` Dave Nadler
2021-11-04 17:58 ` Keith Packard
2021-11-04 21:28 ` Brian Inglis
2021-11-05 2:54 ` Keith Packard
2021-11-05 16:00 ` Steven Abner
2021-11-06 12:06 ` Steven Abner
2021-11-06 23:25 ` Steven Abner
2021-11-08 9:57 ` Corinna Vinschen
2021-11-04 20:57 ` Corinna Vinschen
2021-11-28 7:43 ` Takashi Yano
2021-11-28 12:38 ` Takashi Yano
2021-11-28 13:16 ` Takashi Yano
2021-11-29 10:56 ` Takashi Yano
2021-11-29 14:24 ` Takashi Yano
2021-11-29 15:55 ` Corinna Vinschen
2021-11-30 10:51 ` Takashi Yano
2021-11-30 15:09 ` Corinna Vinschen
2021-11-30 20:38 ` Takashi Yano
2021-11-30 21:17 ` Takashi Yano
2021-12-06 9:53 ` Corinna Vinschen
2021-12-06 10:26 ` Takashi Yano
2021-12-01 12:05 ` Takashi Yano [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20211201210555.9c674f656c750730b279a641@nifty.ne.jp \
--to=takashi.yano@nifty.ne.jp \
--cc=newlib@sourceware.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).