hpp-fcl 2.2.0
HPP fork of FCL -- The Flexible Collision Library
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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>
44namespace hpp {
45namespace fcl {
46
47namespace detail {
48
49//==============================================================================
50template <typename Key, typename Data, typename HashFnc>
52 // Do nothing
53}
54
55//==============================================================================
56template <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//==============================================================================
68template <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);
75
76//==============================================================================
77template <typename Key, typename Data, typename HashFnc>
78std::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//==============================================================================
92template <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//==============================================================================
103template <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
SimpleHashTable(const HashFnc &h)
Definition: simple_hash_table-inl.h:51
void insert(Key key, Data value)
Definition: simple_hash_table-inl.h:69
void clear()
clear the hash table
Definition: simple_hash_table-inl.h:104
std::vector< Data > query(Key key) const
Find the elements in the hash table whose key is the same as query key.
Definition: simple_hash_table-inl.h:78
void init(size_t size)
Init the number of bins in the hash table.
Definition: simple_hash_table-inl.h:57
void remove(Key key, Data value)
remove the key-value pair from the table
Definition: simple_hash_table-inl.h:93
#define HPP_FCL_THROW_PRETTY(message, exception)
Definition: fwd.hh:57
Main namespace.
Definition: broadphase_bruteforce.h:44