[Python-bugs-list] [ python-Bugs-422203 ] math.sqrt() broken on parisc-linux

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Bugs item #422203, was updated on 2001-05-07 22:15
You can respond by visiting: 
http://sourceforge.net/tracker/?func=detail&atid=105470&aid=422203&group_id=5470

Category: Extension Modules
>Group: Platform-specific
Status: Open
Resolution: None
Priority: 5
Submitted By: dann frazier (dannf)
>Assigned to: Tim Peters (tim_one)
Summary: math.sqrt() broken on parisc-linux

Initial Comment:
python 2.0
Debian GNU/Linux on PA-RISC
package: python2-base_2.0-7

for any integer x, math.sqrt(x.0) seems to equal 0.0

----
sebadoh:/tmp# python2
Python 2.0 (#0, Apr 27 2001, 03:16:35) 
[GCC 3.0 20010315 (prerelease)] on linux2
Type "copyright", "credits" or "license" for more
information.
>>> import math
>>> math.sqrt(2.0)
0.0
>>> math.sqrt(2)
1.4142135623730951
----

the C equivalent (math.h) reports the correct answer.

sebadoh:/tmp# uname -a
Linux sebadoh 2.4.0 #1 Mon May 7 12:41:27 MDT 2001
parisc unknown


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Comment By: Tim Peters (tim_one)
Date: 2001-05-07 22:27

Message:
Logged In: YES 
user_id=31435

Try recompiling with optimization off?  Python is written 
in C, and calls the same libm sqrt function you call when 
you write a C program.  It's very straightforward.  Nobody 
else has reported this problem, so there's something unique 
about your platform, and a buggy compiler is always the 
first guess when that occurs.

Also try a current version of Python (2.1 is current; 2.0 
is no longer supported officially, although a volunteer may 
produce a bugfix release for it).


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You can respond by visiting: 
http://sourceforge.net/tracker/?func=detail&atid=105470&aid=422203&group_id=5470