Re: other/5580: double

Re: other/5580: double

[Richard Henderson]

The following reply was made to PR other/5580; it has been noted by GNATS.

From: Richard Henderson <rth@redhat.com>
To: x-tronic@ji.cz
Cc: gcc-gnats@gcc.gnu.org
Subject: Re: other/5580: double
Date: Tue, 5 Feb 2002 01:02:30 -0800

 On Sun, Feb 03, 2002 at 01:04:01PM -0000, x-tronic@ji.cz wrote:
 > double d1=40/12;
 > double d2=40/12.00;
 > 
 > d1 is 3   (???)
 > d2 is 3.333  (as it should)
 
 Not a bug.  This is
 
   double d1 = (double)((int)40 / (int)12);
 
 not
 
   double d1 = (double)40 / (double)12;
 
 
 r~

Re: other/5580: double

[nathan]

Synopsis: double

State-Changed-From-To: open->closed
State-Changed-By: nathan
State-Changed-When: Tue Feb  5 02:21:06 2002
State-Changed-Why:
    not a bug. refer to the definition of the / operator

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=5580

Re: other/5580: double

[Andrew Pinski]

The following reply was made to PR other/5580; it has been noted by GNATS.

From: Andrew Pinski <pinskia@physics.uc.edu>
To: x-tronic@ji.cz
Cc: gcc-gnats@gcc.gnu.org
Subject: Re: other/5580: double
Date: Mon, 4 Feb 2002 14:56:25 -0500

 please close this; as this is not a bug but
 a problem with the programmer not knowing
 that a number without a decimal point is an integer
 and does not get converted to a double unless it is
 in an operation with a double.
 
 
 Thanks,
 Andrew Pinski
 On Sunday, February 3, 2002, at 08:04 , x-tronic@ji.cz wrote:
 
 >
 >> Number:         5580
 >> Category:       other
 >> Synopsis:       double
 >> Confidential:   no
 >> Severity:       non-critical
 >> Priority:       medium
 >> Responsible:    unassigned
 >> State:          open
 >> Class:          sw-bug
 >> Submitter-Id:   net
 >> Arrival-Date:   Mon Feb 04 11:06:01 PST 2002
 >> Closed-Date:
 >> Last-Modified:
 >> Originator:     x-tronic@ji.cz
 >> Release:        gcc 2.96 20000731
 >> Organization:
 >> Environment:
 > RedHat Linux 7.2
 >> Description:
 > double d1=40/12;
 > double d2=40/12.00;
 >
 > d1 is 3   (???)
 > d2 is 3.333  (as it should)
 >
 > leads to serious bugs in applications
 >> How-To-Repeat:
 >
 >> Fix:
 >
 >> Release-Note:
 >> Audit-Trail:
 >> Unformatted:
 >
 >
 

other/5580: double

[x-tronic]

>Number:         5580
>Category:       other
>Synopsis:       double
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Feb 04 11:06:01 PST 2002
>Closed-Date:
>Last-Modified:
>Originator:     x-tronic@ji.cz
>Release:        gcc 2.96 20000731
>Organization:
>Environment:
RedHat Linux 7.2 
>Description:
double d1=40/12;
double d2=40/12.00;

d1 is 3   (???)
d2 is 3.333  (as it should)

leads to serious bugs in applications
>How-To-Repeat:

>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted: