| Singular https://www.singular.uni-kl.de/forum/ |
|
| Upgrading Singular to 3-1-7 in Sage https://www.singular.uni-kl.de/forum/viewtopic.php?f=10&t=2466 |
Page 1 of 1 |
| Author: | jpflori [ Fri Oct 24, 2014 1:43 pm ] |
| Post subject: | Upgrading Singular to 3-1-7 in Sage |
Dear all, We're having trouble moving from Singular 3-1-6 to 3-1-7 in Sage. See (link not allowed...) trac.sagemath.org/ticket/17184. Any idea of wht's going on? (We're aware 4-0-1 is out, but that would require more work, or so we thought.) Thanks in advance for your help, JP |
|
| Author: | hannes [ Sat Oct 25, 2014 4:06 pm ] |
| Post subject: | Re: Upgrading Singular to 3-1-7 in Sage |
One problem may be found in rKill (Singular/ipshell.cc, line 5436-5441). When the current base ring is removed (for example, if it was a local variable of a procedure we now leave) it is checked if this ring is used anythere else and if not, currRing is set to NULL. This is fine in Singular but can be a bad idea if currRing comes from outside Singular. It may help to remove this test as it is not really needed. See https://github.com/Singular/Sources/commit/2202f91f6024f7fb401cf57d7b9e656a2ea05444 |
|
| Author: | jpflori [ Mon Oct 27, 2014 1:17 pm ] |
| Post subject: | Re: Upgrading Singular to 3-1-7 in Sage |
Thanks for the hint. It does not seem to change the situation within Sage though.. |
|
| Author: | jpflori [ Mon Oct 27, 2014 5:19 pm ] |
| Post subject: | Re: Upgrading Singular to 3-1-7 in Sage |
But I think I got what was wrong in the Sage code calling functions from Singular! Thanks for the support, JP |
|
| Page 1 of 1 | All times are UTC + 1 hour [ DST ] |
| Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group http://www.phpbb.com/ |
|