[with patch, positive review] Can't multiply symmetric functions by 0

[jbandlow]

The following, which should just return 0 in SFASchur(QQ), is really nasty:

sage: s = SFASchur(QQ)
sage: 0 * s([1])
sage.bin: : Unknown error 155689240

and sage quits.

[jbandlow]

arg... I meant

sage: s = SFASchur(QQ)
sage: 0 * s([1])

of course.

[mabshoff]

FYI: the error message comes out of symmertrica. And:

----------------------------------------------------------------------
| Sage Version 3.2.rc0, Release Date: 2008-11-10                     |
| Type notebook() for the GUI, and license() for information.        |
----------------------------------------------------------------------
/scratch/mabshoff/release-cycle/sage-3.2.rc1/local/bin/sage-ipython
GNU gdb 6.4.90-debian
Copyright (C) 2006 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu"...Using host libthread_db library "/lib/libthread_db.so.1".

[Thread debugging using libthread_db enabled]
[New Thread 47664905056096 (LWP 26555)]
Python 2.5.2 (r252:60911, Nov 10 2008, 22:40:35) 
[GCC 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)] on linux2
Type "help", "copyright", "credits" or "license" for more information.

sage: s = SFASchur(QQ)
sage: 0 * s([1]) 
/scratch/mabshoff/release-cycle/sage-3.2.rc1/local/bin/python: OWER_symmetrica: Operation not permitted

Program exited with code 0341.
(gdb) bt
No stack.

Cheers,

Michael

[jbandlow]

Works for me. Thanks Mike!

[mabshoff]

Merged in Sage 3.2.rc1