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Geometry : |
Subject: [geometry] access violation in update_discarded(...)
From: Volker Schöch (vschoech_at_[hidden])
Date: 2014-10-17 10:20:10
Hi,
we have seen an access violation deep inside boost geometry. We are still working on a simple reproduction, which may take while. In the meantime, maybe you have some idea what went wrong, or some suggestion how to avoid this situation?
Here is where it happened:
template<typename Turns, typename Operations>
inline void update_discarded(Turns& turn_points, Operations& operations)
{
// Vice-versa, set discarded to true for discarded operations;
// AND set discarded points to true
for (typename boost::range_iterator<Operations>::type it = boost::begin(operations);
it != boost::end(operations);
++it)
{
if (turn_points[it->index].discarded) <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< access violation
{
it->discarded = true;
}
else if (it->discarded)
{
turn_points[it->index].discarded = true;
}
}
}
Please find the callstack attached.
Regards
Volker