/usr/include/ompl/datastructures/ is in libompl-dev 1.1.0+ds1-2+b1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/ompl/datastructures/BinaryHeap.h
/usr/include/ompl/datastructures/DynamicSSSP.h
/usr/include/ompl/datastructures/GreedyKCenters.h
/usr/include/ompl/datastructures/Grid.h
/usr/include/ompl/datastructures/GridB.h
/usr/include/ompl/datastructures/GridN.h
/usr/include/ompl/datastructures/LPAstarOnGraph.h
/usr/include/ompl/datastructures/NearestNeighbors.h
/usr/include/ompl/datastructures/NearestNeighborsFLANN.h
/usr/include/ompl/datastructures/NearestNeighborsGNAT.h
/usr/include/ompl/datastructures/NearestNeighborsGNATNoThreadSafety.h
/usr/include/ompl/datastructures/NearestNeighborsLinear.h
/usr/include/ompl/datastructures/NearestNeighborsSqrtApprox.h
/usr/include/ompl/datastructures/PDF.h
/usr/include/ompl/datastructures/Permutation.h