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Subject: [geometry] invalid iterator dereference in traverse.hpp
From: Vladimir Petrovic (vpetrovic_at_[hidden])
Date: 2013-01-22 12:23:49



There is a small issue with the call to debug_traverse() in
\boost\geometry\algorithms\detail\overlay\traverse.hpp at line 359. The
issue is that current_iit might point to turn.operations.end so
dereference operation is invalid. In some cases this is caught by the
microsoft pageheap debugger even though BOOST_GEOMETRY_DEBUG_TRAVERSE is
not defined and debug_traverse() is nop.


The following patch is one way to fix the issue.






Vladimir Petrovic | vpetrovic_at_[hidden]
think-cell Software GmbH | Chausseestr. 8/E | 10115 Berlin | Germany | phone +49 30 666473-10 | US phone +1 800 891 8091
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