--- Comment #9 from fxcoudert at gcc dot gnu dot org 2007-07-28 15:23
---
Fixed.
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fxcoudert at gcc dot gnu dot org changed:
What|Removed |Added
Status|ASSI
--- Comment #8 from fxcoudert at gcc dot gnu dot org 2007-07-28 15:23
---
Subject: Bug 32048
Author: fxcoudert
Date: Sat Jul 28 15:23:11 2007
New Revision: 127019
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=127019
Log:
PR fortran/32048
* f95-lang.c (gfc_init
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fxcoudert at gcc dot gnu dot org changed:
What|Removed |Added
AssignedTo|unassigned at gcc dot gnu |fxcoudert at gcc dot gnu dot
|dot org
--- Comment #7 from fxcoudert at gcc dot gnu dot org 2007-07-28 13:49
---
Here's a patch that yields results according to IEEE:
Index: f95-lang.c
===
--- f95-lang.c (revision 126997)
+++ f95-lang.c (working copy)
@@ -100
--- Comment #6 from tkoenig at gcc dot gnu dot org 2007-05-25 20:36 ---
(In reply to comment #5)
> Of course people are complaining that min/max as of IEEE does not propagate
> NaNs
> as other operations do.
We could add flags like -fpropagate-nan, -fno-propagate-nan
and -fdontcare-prop
--- Comment #5 from rguenth at gcc dot gnu dot org 2007-05-23 11:21 ---
Of course people are complaining that min/max as of IEEE does not propagate
NaNs
as other operations do.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32048
--- Comment #4 from burnus at gcc dot gnu dot org 2007-05-22 23:02 ---
Fortran has no concept of NaN except in Fortran 2003 IEEE module. To say it in
the words of Dick Hendrickson (cf. PR 30694): "A program is prohibited from
invoking an intrinsic procedure under circumstances where a va
--- Comment #3 from pinskia at gcc dot gnu dot org 2007-05-22 22:50 ---
And NaN is unordered which causes the results to become undefined unless you
have a defined value for min/max in the standard (fmin/fmax in C99 have a
defined value of having NaN being a missing value).
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http:
--- Comment #2 from dfranke at gcc dot gnu dot org 2007-05-22 22:41 ---
Regardless whether NaN is defined, in an ordered set MAX(a, b) should always
equal MAX(b, a).
For the record:
$> ifort pr32048.f90 && ./a.out
2.10
2.10
$> sunf95 -w4 pr32048.f90 && ./a.out
Floating po
--- Comment #1 from pinskia at gcc dot gnu dot org 2007-05-22 22:07 ---
NaN is not defined in Fortran's real so I am thinking about closing this as
invalid. Only the IEEE types in Fortran 2003 is where NaN are defined.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32048
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