[redland-dev] [Redland librdf RDF API 0000543]: assertion in rasqal_query_results_next_triple called from librdf_query_rasqal_query_results_next_statement

[Mantis Bug Tracker]

The following issue has been SUBMITTED. 
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http://bugs.librdf.org/mantis/view.php?id=543 
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Reported By:                mst
Assigned To:                
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Project:                    Redland librdf RDF API
Issue ID:                   543
Category:                   query engine
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     new
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Date Submitted:             2013-04-16 12:45
Last Modified:              2013-04-16 12:45
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Summary:                    assertion in rasqal_query_results_next_triple called
from librdf_query_rasqal_query_results_next_statement
Description: 
in a build with MSVC debug runtimes i got this assertion
about a NULL results pointer in rasqal_query_results_next_triple.

this is on a "CONSTRUCT" query with 1 result.

the client code basically calls librdf_stream_end,
librdf_stream_get_object, librdf_stream_next in a loop,

it seems to me that librdf_query_rasqal_query_results_next_statement
should just not call into rasqal if there is no "results".


Steps to Reproduce: 
can provide reproducer if required but i hope it's as obvious as it looks :)
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Issue History 
Date Modified    Username       Field                    Change               
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2013-04-16 12:45 mst            New Issue                                    
2013-04-16 12:45 mst            File Added:
0001-avoid-an-assert-inside-rasqal_query_results_next_tri.patch                 
  
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