[Python-bugs-list] [ python-Bugs-808285 ] Bad float->long conversion on openbsd/sparc

[SourceForge.net]

Bugs item #808285, was opened at 2003-09-18 03:30
Message generated for change (Comment added) made by loewis
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=105470&aid=808285&group_id=5470

Category: Python Interpreter Core
Group: Python 2.3
Status: Open
Resolution: None
Priority: 5
Submitted By: Ben Escoto (bescoto)
Assigned to: Nobody/Anonymous (nobody)
Summary: Bad float->long conversion on openbsd/sparc

Initial Comment:
$ uname -srvpm

OpenBSD 3.3 GENERIC#0 sparc64 SUNW,UltraSPARC-IIi @ 333

MHz, version 0 FPU

$ ./python  

Python 2.3 (#1, Sep 17 2003, 21:15:45) 

[GCC 2.95.3 20010125 (prerelease, propolice)] on openbsd3

Type "help", "copyright", "credits" or "license" for

more information.

>>> long(1000.0)

0L

>>> long(1000000.0)

00000L

>>> 32767 < long(1000000.0) < 32768

1



----------------------------------------------------------------------

>Comment By: Martin v. Löwis (loewis)
Date: 2003-09-18 21:21

Message:
Logged In: YES 
user_id=21627

I see. It is then pretty certain that you are running into a

compiler bug. Sparc64 floating point just does not work

correctly in gcc 2.95.3. Recompiling Python as a 32-bit

application should fix the problem.

----------------------------------------------------------------------

Comment By: Ben Escoto (bescoto)
Date: 2003-09-18 21:12

Message:
Logged In: YES 
user_id=218965

$ file python

python: ELF 64-bit MSB executable, Sparc64, version 1, for

OpenBSD, dynamically linked (uses shared libs), not stripped



----------------------------------------------------------------------

Comment By: Martin v. Löwis (loewis)
Date: 2003-09-18 21:02

Message:
Logged In: YES 
user_id=21627

What is the output of "file python"?

----------------------------------------------------------------------

Comment By: Ben Escoto (bescoto)
Date: 2003-09-18 20:37

Message:
Logged In: YES 
user_id=218965

Compiler is gcc 2.95.3.  How do I tell if it is a "64-bit

build"?



----------------------------------------------------------------------

Comment By: Martin v. Löwis (loewis)
Date: 2003-09-18 20:07

Message:
Logged In: YES 
user_id=21627

Is this with a 64-bit build? If so, which compiler was used?

----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=105470&aid=808285&group_id=5470