sparse_hash_table.h

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#ifndef COAL_BROADPHASE_SPARSEHASHTABLE_H
#define COAL_BROADPHASE_SPARSEHASHTABLE_H
 
#include <set>
#include <vector>
#include <list>
#include <unordered_map>
 
namespace coal {
 
namespace detail {
 
template <typename U, typename V>
class unordered_map_hash_table : public std::unordered_map<U, V> {
  typedef std::unordered_map<U, V> Base;
 
 public:
  unordered_map_hash_table() : Base() {};
};
 
template <typename Key, typename Data, typename HashFnc,
          template <typename, typename> class TableT = unordered_map_hash_table>
class SparseHashTable {
 protected:
  HashFnc h_;
  typedef std::list<Data> Bin;
  typedef TableT<size_t, Bin> Table;
 
  Table table_;
 
 public:
  SparseHashTable(const HashFnc& h);
 
  void init(size_t);
 
  void insert(Key key, Data value);
 
  std::vector<Data> query(Key key) const;
 
  void remove(Key key, Data value);
 
  void clear();
};
 
}  // namespace detail
}  // namespace coal
 
#include "coal/broadphase/detail/sparse_hash_table-inl.h"
 
#endif