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Today's Topics:
1. [SCM] mingw-org-wsl (mingw) branch, 5.4-trunk, updated.
b3f510ab65f64fca31e823bbc7fd69eeca7cf1d9 (MinGW Notification List)
2. [mingw] #41597: std::remquo does not yield the proper result
for the quotient (MinGW Notification List)
----------------------------------------------------------------------
Message: 1
Date: Sat, 20 Mar 2021 18:46:22 +0900
From: MinGW Notification List <[email protected]>
To: [email protected]
Subject: [MinGW-Notify] [SCM] mingw-org-wsl (mingw) branch, 5.4-trunk,
updated. b3f510ab65f64fca31e823bbc7fd69eeca7cf1d9
Message-ID: <[email protected]>
This is an automated email from the git hooks/post-receive script. It was
generated because a ref change was pushed to "mingw-org-wsl" repository
containing the "mingw" project.
The branch, 5.4-trunk has been updated
via b3f510ab65f64fca31e823bbc7fd69eeca7cf1d9 (commit)
via 38a2db63d60bf01e2549443f3b8a5b381b716390 (commit)
from 52b37225c97e8c74f8f3e985dc882f6957af00e1 (commit)
Those revisions listed above that are new to this repository have
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- Log -----------------------------------------------------------------
commit b3f510ab65f64fca31e823bbc7fd69eeca7cf1d9
Author: Keith Marshall <[email protected]>
Date: Thu Feb 25 16:21:59 2021 +0000
Consolidate fmod() and remainder() source code.
commit 38a2db63d60bf01e2549443f3b8a5b381b716390
Author: Keith Marshall <[email protected]>
Date: Wed Feb 24 22:17:34 2021 +0000
Correct remquo() quotient computation; cf. MinGW-Bug #41597
-----------------------------------------------------------------------
Summary of changes:
mingwrt/ChangeLog | 26 +++++
mingwrt/Makefile.in | 21 +++-
mingwrt/mingwex/math/fmod_generic.sx.in | 119 +++++++++++++++++++++++
mingwrt/mingwex/math/fmodf.c | 23 -----
mingwrt/mingwex/math/fmodl.c | 22 -----
mingwrt/mingwex/math/remainder.s | 19 ----
mingwrt/mingwex/math/remainderf.s | 19 ----
mingwrt/mingwex/math/remainderl.s | 22 -----
mingwrt/mingwex/math/remquo.s | 38 --------
mingwrt/mingwex/math/remquo_generic.sx | 167 ++++++++++++++++++++++++++++++++
mingwrt/mingwex/math/remquof.s | 38 --------
mingwrt/mingwex/math/remquol.s | 36 -------
12 files changed, 329 insertions(+), 221 deletions(-)
create mode 100644 mingwrt/mingwex/math/fmod_generic.sx.in
delete mode 100644 mingwrt/mingwex/math/fmodf.c
delete mode 100644 mingwrt/mingwex/math/fmodl.c
delete mode 100644 mingwrt/mingwex/math/remainder.s
delete mode 100644 mingwrt/mingwex/math/remainderf.s
delete mode 100644 mingwrt/mingwex/math/remainderl.s
delete mode 100644 mingwrt/mingwex/math/remquo.s
create mode 100644 mingwrt/mingwex/math/remquo_generic.sx
delete mode 100644 mingwrt/mingwex/math/remquof.s
delete mode 100644 mingwrt/mingwex/math/remquol.s
hooks/post-receive
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mingw-org-wsl (mingw)
------------------------------
Message: 2
Date: Sat, 20 Mar 2021 10:07:02 +0000
From: MinGW Notification List <[email protected]>
To: OSDN Ticket System <[email protected]>
Subject: [MinGW-Notify] [mingw] #41597: std::remquo does not yield the
proper result for the quotient
Message-ID: <[email protected]>
Content-Type: text/plain; charset=UTF-8
#41597: std::remquo does not yield the proper result for the quotient
Open Date: 2021-02-17 21:25
Last Update: 2021-03-20 10:07
URL for this Ticket:
https://osdn.net//projects/mingw/ticket/41597
RSS feed for this Ticket:
https://osdn.net/ticket/ticket_rss.php?group_id=3917&tid=41597
---------------------------------------------------------------------
Last Changes/Comment on this Ticket:
2021-03-20 10:07 Updated by: keith
* Status Update from Open to Closed
* Resolution Update from None to Fixed
Comment:
I committed #38a2db6, (and related #b3f510a), to resolve this issue. These
changes will be included in the next mingwrt release.
---------------------------------------------------------------------
Ticket Status:
Reporter: avhaecke
Owner: keith
Type: Issues
Status: Closed
Priority: 5 - Medium
MileStone: (None)
Component: WSL
Severity: 5 - Medium
Resolution: Fixed
---------------------------------------------------------------------
Ticket details:
Context :
This problem was encountered with gcc on MinGW in the following version :
gcc.exe (MinGW.org GCC-6.3.0-1) 6.3.0
Description :
The following code :
double numer = 90.1 ; double denom = 90 .0 ; int quot ; double result =
std::remquo(numer, denom, ") ; std::cout << "result " << result <<
std::endl ; std::cout << "quot " << quot << std::endl;should yield :
result 0.1
quot 1
As is expected from std::remquo, quot has a magnitude which should be congruent
(modulo 2 to the nth) to the magnitude of the integral quotient of x/y, n being
greater or equal than 3.
However with gcc 6.3.0, on MinGW, the above instructions yield :
result 0.1
quot 0
On another version of gcc (gcc 4.9.1 2014), the expected behavior is
encountered.
--
Ticket information of MinGW - Minimalist GNU for Windows project
MinGW - Minimalist GNU for Windows Project is hosted on OSDN
Project URL: https://osdn.net/projects/mingw/
OSDN: https://osdn.net
URL for this Ticket:
https://osdn.net/projects/mingw/ticket/41597
RSS feed for this Ticket:
https://osdn.net/ticket/ticket_rss.php?group_id=3917&tid=41597
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