|--- |FIXED
--- Comment #39 from Dlang Bot ---
dlang/dmd pull request #13780 "fix Issue 3632 - modify float is float to do a
bitwise compare" was merged into master:
- 6974a1e2185e29603329860ecfc85822bcfc9657 by Dennis Korpel:
fix Issue 3632 - modify float is float to do a bitwi
https://issues.dlang.org/show_bug.cgi?id=3632
--- Comment #38 from Dlang Bot ---
@dkorpel created dlang/dmd pull request #13780 "fix Issue 3632 - modify float
is float to do a bitwise compare" fixing this issue:
- fix Issue 3632 - modify float is float to do a bitwise compare
https://issues.dlang.org/show_bug.cgi?id=3632
Nathan S. changed:
What|Removed |Added
Status|RESOLVED|REOPENED
CC|
https://issues.dlang.org/show_bug.cgi?id=3632
RazvanN changed:
What|Removed |Added
Status|REOPENED|RESOLVED
CC|
https://issues.dlang.org/show_bug.cgi?id=3632
--- Comment #35 from Dlang Bot ---
@ibuclaw updated dlang/dmd pull request #7568 "fix Issue 3632 - modify float is
float to do a bitwise compare" fixing this issue:
- fix Issue 3632 - modify float is float to do a bitwise compare
https://
https://issues.dlang.org/show_bug.cgi?id=3632
Daniel Kozak changed:
What|Removed |Added
CC||kozz...@gmail.com
--- Comment #34 from Daniel
https://issues.dlang.org/show_bug.cgi?id=3632
Andrei Alexandrescu changed:
What|Removed |Added
Version|unspecified |D2
--
https://issues.dlang.org/show_bug.cgi?id=3632
--- Comment #33 from Denis Shelomovskij ---
(In reply to yebblies from comment #32)
> *** Issue 11442 has been marked as a duplicate of this issue. ***
Testcase from Issue 11442:
---
struct S { float n; }
static assert(S.init is S.init); // fails
---
https://d.puremagic.com/issues/show_bug.cgi?id=3632
--- Comment #32 from yebblies 2013-11-15 18:02:51 EST ---
*** Issue 11442 has been marked as a duplicate of this issue. ***
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--- Comment #31 from yebblies 2013-11-05 21:20:15 EST ---
(In reply to comment #30)
> Looks like we have bitwise comparison at runtime, but `f_is` generates some
> long assembly code in contrast to `i_is`:
> ---
> bool f_is(float f1, float f2)
https://d.puremagic.com/issues/show_bug.cgi?id=3632
--- Comment #30 from Denis Shelomovskij
2013-11-05 13:02:09 MSK ---
Looks like we have bitwise comparison at runtime, but `f_is` generates some
long assembly code in contrast to `i_is`:
---
bool f_is(float f1, float f2)
{ return f1 is f2; }
https://d.puremagic.com/issues/show_bug.cgi?id=3632
Denis Shelomovskij changed:
What|Removed |Added
CC||verylonglogin@gmail.com
---
http://d.puremagic.com/issues/show_bug.cgi?id=3632
--- Comment #28 from yebblies 2013-01-17 16:08:29 EST ---
New (and hopefully last) pull
https://github.com/D-Programming-Language/dmd/pull/1499
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--- Comment #27 from Walter Bright 2012-04-27
15:43:54 PDT ---
Reverted because their tests failed.
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--- Comment #26 from github-bugzi...@puremagic.com 2012-04-27 15:06:20 PDT ---
Commits pushed to master at https://github.com/D-Programming-Language/dmd
https://github.com/D-Programming-Language/dmd/commit/f9c21c2a77e32d310c8cb9d6c23f517d410cbe
http://d.puremagic.com/issues/show_bug.cgi?id=3632
--- Comment #25 from yebblies 2012-02-18 13:36:57 EST ---
New pull to revert the revert.
https://github.com/D-Programming-Language/dmd/pull/730
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--- Comment #24 from Walter Bright 2012-02-17
17:22:43 PST ---
change reverted - does not work
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Merge pull request #724 from yebblies/issue3632
Issue 3632 - modify float is float to do a bitwise compare
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--- Comment #22 from yebblies 2012-02-17 00:08:26 EST ---
(In reply to comment #21)
> This is what I was asking in the closed down issue 3981
I know, that's why I closed issue 3981 with a comment saying that part was
covered by this report...
http://d.puremagic.com/issues/show_bug.cgi?id=3632
--- Comment #21 from bearophile_h...@eml.cc 2012-02-16 04:44:31 PST ---
(In reply to comment #20)
> - I really believe that the advantages
> of 'is' always being a straight bitwise comparison outweigh the downsides.
This is what I was asking i
http://d.puremagic.com/issues/show_bug.cgi?id=3632
yebblies changed:
What|Removed |Added
Keywords||pull
AssignedTo|nob...@puremagic.com
http://d.puremagic.com/issues/show_bug.cgi?id=3632
--- Comment #19 from Steven Schveighoffer 2011-07-18
06:37:46 PDT ---
(In reply to comment #18)
> (In reply to comment #7)
> > Reopening as the commit above will cause the following assert to fail:
> > static assert(real.init !is real.nan);
>
http://d.puremagic.com/issues/show_bug.cgi?id=3632
--- Comment #18 from Steven Schveighoffer 2011-06-28
05:02:11 PDT ---
(In reply to comment #7)
> Reopening as the commit above will cause the following assert to fail:
> static assert(real.init !is real.nan);
If they are not the same bit patt
http://d.puremagic.com/issues/show_bug.cgi?id=3632
--- Comment #17 from Steven Schveighoffer 2011-06-28
04:56:43 PDT ---
(In reply to comment #11)
> The use case I can remember being discussed is using 'v is float.init' to
> determine if a floating point value is uninitialized or is a nan due
http://d.puremagic.com/issues/show_bug.cgi?id=3632
--- Comment #16 from Don 2011-06-28 04:43:29 PDT ---
(In reply to comment #15)
> (In reply to comment #14)
> > I use it all the time, mainly for distinguishing between +0.0 and -0.0
>
> 'is' does distinguish between +0 and -0. Just not -Nan an
http://d.puremagic.com/issues/show_bug.cgi?id=3632
--- Comment #15 from Walter Bright 2011-06-28
02:17:47 PDT ---
(In reply to comment #14)
> I use it all the time, mainly for distinguishing between +0.0 and -0.0
'is' does distinguish between +0 and -0. Just not -Nan and +Nan, nor the Nan
pay
http://d.puremagic.com/issues/show_bug.cgi?id=3632
--- Comment #14 from Don 2011-06-28 01:08:25 PDT ---
(In reply to comment #10)
> (In reply to comment #9)
> > (In reply to comment #8)
> > > This is intended. All nans are regarded as the same (even signalling and
> > > non-signalling).
> > So
http://d.puremagic.com/issues/show_bug.cgi?id=3632
--- Comment #13 from yebblies 2011-06-27 21:25:22 PDT ---
(In reply to comment #12)
> The current behavior matches template argument matching. Making it different
> from such will introduce all kinds of anomalous behavior.
Fair enough. I'm no
http://d.puremagic.com/issues/show_bug.cgi?id=3632
--- Comment #12 from Walter Bright 2011-06-27
21:08:47 PDT ---
(In reply to comment #11)
> Making 'is' for floating point types consistent with 'is' for other types
> seems
> to me like a better move than introducing a new special case.
The
http://d.puremagic.com/issues/show_bug.cgi?id=3632
--- Comment #11 from yebblies 2011-06-27 20:40:16 PDT ---
(In reply to comment #10)
> I've been around numerics for 35 years now, and I've never seen a use for NaN
> payloads. I've never seen anyone even propose a use. Until then, I suspect
> s
http://d.puremagic.com/issues/show_bug.cgi?id=3632
--- Comment #10 from Walter Bright 2011-06-27
14:51:23 PDT ---
(In reply to comment #9)
> (In reply to comment #8)
> > This is intended. All nans are regarded as the same (even signalling and
> > non-signalling).
> So we have to use std.math.i
http://d.puremagic.com/issues/show_bug.cgi?id=3632
--- Comment #9 from bearophile_h...@eml.cc 2011-06-27 13:33:12 PDT ---
(In reply to comment #8)
> This is intended. All nans are regarded as the same (even signalling and
> non-signalling).
So we have to use std.math.isIdentical() to tell apar
http://d.puremagic.com/issues/show_bug.cgi?id=3632
--- Comment #8 from Walter Bright 2011-06-27
11:32:17 PDT ---
(In reply to comment #7)
> Reopening as the commit above will cause the following assert to fail:
> static assert(real.init !is real.nan);
This is intended. All nans are regarded a
http://d.puremagic.com/issues/show_bug.cgi?id=3632
yebblies changed:
What|Removed |Added
Status|RESOLVED|REOPENED
Resolution|FIXED
http://d.puremagic.com/issues/show_bug.cgi?id=3632
kenn...@gmail.com changed:
What|Removed |Added
Status|REOPENED|RESOLVED
Resolution|
http://d.puremagic.com/issues/show_bug.cgi?id=3632
kenn...@gmail.com changed:
What|Removed |Added
Status|RESOLVED|REOPENED
CC|
http://d.puremagic.com/issues/show_bug.cgi?id=3632
bearophile_h...@eml.cc changed:
What|Removed |Added
CC||bearophile_h...@eml.cc
--- Com
http://d.puremagic.com/issues/show_bug.cgi?id=3632
Walter Bright changed:
What|Removed |Added
Status|NEW |RESOLVED
CC|
http://d.puremagic.com/issues/show_bug.cgi?id=3632
yebblies changed:
What|Removed |Added
Keywords||patch
CC|
http://d.puremagic.com/issues/show_bug.cgi?id=3632
Don changed:
What|Removed |Added
CC||clugd...@yahoo.com.au
--- Comment #1 from Don 2
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