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digitalmars.D.bugs - [Issue 3078] New: NaN reported as equal to zero

reply d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=3078

           Summary: NaN reported as equal to zero
           Product: D
           Version: unspecified
          Platform: Other
        OS/Version: Linux
            Status: NEW
          Severity: blocker
          Priority: P1
         Component: DMD
        AssignedTo: nobody puremagic.com
        ReportedBy: andrei metalanguage.com


import std.math;

void main()
{
    double x[] = new double[1];
    double a = x[0];
    assert(a == 0);
    assert(x[0] == 0);
    assert(isnan(a));
    assert(isnan(x[0]));
}

No assert fails in the code above - and one hour is gone off my life.

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Jun 18 2009
next sibling parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=3078





--- Comment #1 from Andrei Alexandrescu <andrei metalanguage.com>  2009-06-19
06:10:23 PDT ---
I noticed that the bug manifests itself only when building with -O.

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Jun 19 2009
prev sibling next sibling parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=3078


Frits van Bommel <fvbommel wxs.nl> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|unspecified                 |1.045




--- Comment #2 from Frits van Bommel <fvbommel wxs.nl>  2009-06-19 06:27:42 PDT
---
This is present in both 1.045 and 2.030; setting version to 1.045 because D1
updates seem to be more likely to be forgotten for dual-version bugs (and
because it was unset).

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Jun 19 2009
prev sibling parent d-bugmail puremagic.com writes:
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Walter Bright <bugzilla digitalmars.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |bugzilla digitalmars.com
         Resolution|                            |FIXED




--- Comment #3 from Walter Bright <bugzilla digitalmars.com>  2009-07-09
02:51:35 PDT ---
Fixed dmd 1.046 and 2.031

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Jul 09 2009