feature_allocator.h

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#ifndef VOCABULARY_TREE_FEATURE_ALLOCATOR_H
#define VOCABULARY_TREE_FEATURE_ALLOCATOR_H

#include <Eigen/Core>
#include <Eigen/StdVector>

namespace vt {

template<class Feature>
struct DefaultAllocator
{
  typedef std::allocator<Feature> type;
};

// Specialization to use aligned allocator for Eigen::Matrix types.
template<typename Scalar, int Rows, int Cols, int Options, int MaxRows, int MaxCols>
struct DefaultAllocator< Eigen::Matrix<Scalar, Rows, Cols, Options, MaxRows, MaxCols> >
{
  typedef Eigen::aligned_allocator<Eigen::Matrix<Scalar, Rows, Cols, Options, MaxRows, MaxCols> > type;
};

} //namespace vt

#endif