<p>in the process of installing, some warning happens, should it be ignored?</p>
<p>/home/yao/work/mlpack/src/mlpack/tests/ub_tree_test.cpp: In member function ‘void UBTreeTest::SingleTreeTraverserTest::test_method()’:<br>
/home/yao/work/mlpack/src/mlpack/tests/ub_tree_test.cpp:307:40: warning: ‘mlpack::neighbor::NeighborSearch::NeighborSearch(const MatType&, bool, bool, double, MetricType) [with SortPolicy = mlpack::neighbor::NearestNeighborSort; MetricType = mlpack::metric::LMetric<2, true>; MatType = arma::Mat; TreeType = mlpack::tree::UBTree; DualTreeTraversalType = mlpack::tree::BinarySpaceTree, mlpack::neighbor::NeighborSearchStatmlpack::neighbor::NearestNeighborSort, arma::Mat, mlpack::bound::CellBound, mlpack::tree::UBTreeSplit>::DualTreeTraverser; SingleTreeTraversalType = mlpack::tree::BinarySpaceTree, mlpack::neighbor::NeighborSearchStatmlpack::neighbor::NearestNeighborSort, arma::Mat, mlpack::bound::CellBound, mlpack::tree::UBTreeSplit>::SingleTreeTraverser]’ is deprecated [-Wdeprecated-declarations]<br>
UBTree> knn1(dataset, false, true);<br>
^<br>
In file included from /home/yao/work/mlpack/src/mlpack/../mlpack/methods/neighbor_search/neighbor_search.hpp:597:0,<br>
from /home/yao/work/mlpack/src/mlpack/tests/ub_tree_test.cpp:3:<br>
/home/yao/work/mlpack/src/mlpack/../mlpack/methods/neighbor_search/neighbor_search_impl.hpp:248:1: note: declared here<br>
NeighborSearch
^<br>
/home/yao/work/mlpack/src/mlpack/tests/ub_tree_test.cpp:312:31: warning: ‘mlpack::neighbor::NeighborSearch::NeighborSearch(const MatType&, bool, bool, double, MetricType) [with SortPolicy = mlpack::neighbor::NearestNeighborSort; MetricType = mlpack::metric::LMetric<2, true>; MatType = arma::Mat; TreeType = mlpack::tree::KDTree; DualTreeTraversalType = mlpack::tree::BinarySpaceTree, mlpack::neighbor::NeighborSearchStatmlpack::neighbor::NearestNeighborSort, arma::Mat, mlpack::bound::HRectBound, mlpack::tree::MidpointSplit>::DualTreeTraverser; SingleTreeTraversalType = mlpack::tree::BinarySpaceTree, mlpack::neighbor::NeighborSearchStatmlpack::neighbor::NearestNeighborSort, arma::Mat, mlpack::bound::HRectBound, mlpack::tree::MidpointSplit>::SingleTreeTraverser]’ is deprecated [-Wdeprecated-declarations]<br>
KNN knn2(dataset, true, true);<br>
^<br>
In file included from /home/yao/work/mlpack/src/mlpack/../mlpack/methods/neighbor_search/neighbor_search.hpp:597:0,<br>
from /home/yao/work/mlpack/src/mlpack/tests/ub_tree_test.cpp:3:<br>
/home/yao/work/mlpack/src/mlpack/../mlpack/methods/neighbor_search/neighbor_search_impl.hpp:248:1: note: declared here<br>
NeighborSearch
^<br>
/home/yao/work/mlpack/src/mlpack/tests/ub_tree_test.cpp: In member function ‘void UBTreeTest::DualTreeTraverserTest::test_method()’:<br>
/home/yao/work/mlpack/src/mlpack/tests/ub_tree_test.cpp:334:41: warning: ‘mlpack::neighbor::NeighborSearch::NeighborSearch(const MatType&, bool, bool, double, MetricType) [with SortPolicy = mlpack::neighbor::NearestNeighborSort; MetricType = mlpack::metric::LMetric<2, true>; MatType = arma::Mat; TreeType = mlpack::tree::UBTree; DualTreeTraversalType = mlpack::tree::BinarySpaceTree, mlpack::neighbor::NeighborSearchStatmlpack::neighbor::NearestNeighborSort, arma::Mat, mlpack::bound::CellBound, mlpack::tree::UBTreeSplit>::DualTreeTraverser; SingleTreeTraversalType = mlpack::tree::BinarySpaceTree, mlpack::neighbor::NeighborSearchStatmlpack::neighbor::NearestNeighborSort, arma::Mat, mlpack::bound::CellBound, mlpack::tree::UBTreeSplit>::SingleTreeTraverser]’ is deprecated [-Wdeprecated-declarations]<br>
UBTree> knn1(dataset, false, false);<br>
^<br>
In file included from /home/yao/work/mlpack/src/mlpack/../mlpack/methods/neighbor_search/neighbor_search.hpp:597:0,<br>
from /home/yao/work/mlpack/src/mlpack/tests/ub_tree_test.cpp:3:<br>
/home/yao/work/mlpack/src/mlpack/../mlpack/methods/neighbor_search/neighbor_search_impl.hpp:248:1: note: declared here<br>
NeighborSearch
^<br>
/home/yao/work/mlpack/src/mlpack/tests/ub_tree_test.cpp:339:31: warning: ‘mlpack::neighbor::NeighborSearch::NeighborSearch(const MatType&, bool, bool, double, MetricType) [with SortPolicy = ml</p>
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