simple_hash_table-inl.h
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35 
38 #ifndef HPP_FCL_BROADPHASE_SIMPLEHASHTABLE_INL_H
39 #define HPP_FCL_BROADPHASE_SIMPLEHASHTABLE_INL_H
40 
42 
43 #include <iterator>
44 namespace hpp {
45 namespace fcl {
46 
47 namespace detail {
48 
49 //==============================================================================
50 template <typename Key, typename Data, typename HashFnc>
52  // Do nothing
53 }
54 
55 //==============================================================================
56 template <typename Key, typename Data, typename HashFnc>
58  if (size == 0) {
59  HPP_FCL_THROW_PRETTY("SimpleHashTable must have non-zero size.",
60  std::logic_error);
61  }
62 
63  table_.resize(size);
64  table_size_ = size;
65 }
66 
67 //==============================================================================
68 template <typename Key, typename Data, typename HashFnc>
70  std::vector<unsigned int> indices = h_(key);
71  size_t range = table_.size();
72  for (size_t i = 0; i < indices.size(); ++i)
73  table_[indices[i] % range].push_back(value);
74 }
75 
76 //==============================================================================
77 template <typename Key, typename Data, typename HashFnc>
78 std::vector<Data> SimpleHashTable<Key, Data, HashFnc>::query(Key key) const {
79  size_t range = table_.size();
80  std::vector<unsigned int> indices = h_(key);
81  std::set<Data> result;
82  for (size_t i = 0; i < indices.size(); ++i) {
83  size_t index = indices[i] % range;
84  std::copy(table_[index].begin(), table_[index].end(),
85  std::inserter(result, result.end()));
86  }
87 
88  return std::vector<Data>(result.begin(), result.end());
89 }
90 
91 //==============================================================================
92 template <typename Key, typename Data, typename HashFnc>
94  size_t range = table_.size();
95  std::vector<unsigned int> indices = h_(key);
96  for (size_t i = 0; i < indices.size(); ++i) {
97  size_t index = indices[i] % range;
98  table_[index].remove(value);
99  }
100 }
101 
102 //==============================================================================
103 template <typename Key, typename Data, typename HashFnc>
105  table_.clear();
106  table_.resize(table_size_);
107 }
108 
109 } // namespace detail
110 } // namespace fcl
111 } // namespace hpp
112 
113 #endif
doxygen_xml_parser.index
index
Definition: doxygen_xml_parser.py:886
hpp::fcl::detail::SimpleHashTable::SimpleHashTable
SimpleHashTable(const HashFnc &h)
Definition: simple_hash_table-inl.h:51
simple_hash_table.h
hpp::fcl::detail::SimpleHashTable::clear
void clear()
clear the hash table
Definition: simple_hash_table-inl.h:104
hpp
Main namespace.
Definition: broadphase_bruteforce.h:44
value
float value
HPP_FCL_THROW_PRETTY
#define HPP_FCL_THROW_PRETTY(message, exception)
Definition: include/hpp/fcl/fwd.hh:57
hpp::fcl::detail::SimpleHashTable
A simple hash table implemented as multiple buckets. HashFnc is any extended hash function: HashFnc(k...
Definition: simple_hash_table.h:53


hpp-fcl
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autogenerated on Fri Aug 2 2024 02:45:15