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Today's Topics:
1. [mingw] #41597: std::remquo does not yield the proper result
for the quotient (MinGW Notification List)
----------------------------------------------------------------------
Message: 1
Date: Tue, 23 Feb 2021 02:18:58 +0200
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 23:25
Last Update: 2021-02-23 02:18
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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Last Changes/Comment on this Ticket:
2021-02-23 02:18 Updated by: yaser_elkelany
Comment:
Good best
---------------------------------------------------------------------
Ticket Status:
Reporter: avhaecke
Owner: keith
Type: Issues
Status: Open [Owner assigned]
Priority: 5 - Medium
MileStone: (None)
Component: WSL
Severity: 5 - Medium
Resolution: None
---------------------------------------------------------------------
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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