#13447: Make libsingular multivariate polynomial rings collectable
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       Reporter:  nbruin                               |         Owner:  rlm    
                       
           Type:  defect                               |        Status:  
needs_info                    
       Priority:  major                                |     Milestone:  
sage-5.4                      
      Component:  memleak                              |    Resolution:         
                       
       Keywords:                                       |   Work issues:  Input 
from libsingular experts
Report Upstream:  Reported upstream. No feedback yet.  |     Reviewers:         
                       
        Authors:                                       |     Merged in:         
                       
   Dependencies:                                       |      Stopgaps:         
                       
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Comment (by nbruin):

 YAY! indeed, returning NULL seems to solve the problem. I don't know
 whether there are any other ill effects, but since NULL was already
 returned upon missing parent, I think that with an incomplete parent it's
 an appropriate value too. It seems the NTL wrapper was already written
 with the possibility in mind of not having a valid parent around.

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13447#comment:31>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
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