Adjust naming convention
This commit is contained in:
parent
5f9526a19b
commit
08b3591c60
2 changed files with 74 additions and 74 deletions
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@ -31,7 +31,7 @@ namespace duckmem {
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///-------------------------------------------------------------------------
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template <typename K>
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ScapegoatTree<K>::~ScapegoatTree() {
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DeleteNodes(m_root);
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delete_nodes(m_root);
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#if defined(DUCK_DEBUG)
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m_root = NULL;
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m_count = 0xDEADBEEF;
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@ -54,12 +54,12 @@ namespace duckmem {
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///-------------------------------------------------------------------------
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template <typename K>
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std::pair<typename ScapegoatTree<K>::iterator, bool> ScapegoatTree<K>::insert (const K& parKey) {
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const size_type depthHint = GetMaxBalancedDepth(std::max<size_type>(m_reserved, m_count + 1), m_alphainvloginv) + 3;
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const size_type depthHint = get_max_balanced_depth(std::max<size_type>(m_reserved, m_count + 1), m_alphainvloginv) + 3;
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#if defined(SCAPEGOATTREE_VERBOSE)
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std::cout << "insert(): depthHint = " << depthHint << ", m_count = " << m_count << ", m_countMax = " << m_countMax << ", m_reserved = " << m_reserved << std::endl;
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#endif
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if (NULL == m_root) {
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m_root = GetNewNode(parKey);
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m_root = get_new_node(parKey);
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m_root->left = m_root->right = NULL;
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m_root->size = 1;
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m_count = 1;
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@ -79,13 +79,13 @@ namespace duckmem {
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NodeStack stack;
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stack.reserve(depthHint);
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NodeType* const closestMatch = GetInsertParent(m_root, parKey, stack);
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NodeType* const closestMatch = get_insert_parent(m_root, parKey, stack);
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Assert(stack.size() <= depthHint);
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if (closestMatch->content == parKey)
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return std::pair<iterator, bool>(iterator(stack.begin(), stack.size(), depthHint), false);
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Assert(NULL == closestMatch->left or closestMatch->left->content < parKey);
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Assert(NULL == closestMatch->right or parKey < closestMatch->right->content);
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NodeType* const newNode = GetNewNode(parKey);
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NodeType* const newNode = get_new_node(parKey);
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newNode->left = newNode->right = NULL;
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newNode->size = 1;
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if (parKey < closestMatch->content) {
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@ -116,14 +116,14 @@ namespace duckmem {
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size_type newNodeDepth = stack.size() - 1;
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//Rebalance if necessary
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if (not IsAlphaHeightBalanced(newNodeDepth, this->size())) {
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if (not is_alpha_height_balanced(newNodeDepth, this->size())) {
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#if defined(SCAPEGOATTREE_PARANOID)
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Assert(FindMaxDepth(m_root) == newNodeDepth);
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Assert(find_max_depth(m_root) == newNodeDepth);
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#endif
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Assert(GetMaxBalancedDepth(static_cast<size_type>(m_root->size), m_alphainvloginv) + 1 == newNodeDepth);
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std::pair<NodeType*, NodeType*> scapegoatAndParent = FindScapegoat(stack);
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Assert(get_max_balanced_depth(static_cast<size_type>(m_root->size), m_alphainvloginv) + 1 == newNodeDepth);
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std::pair<NodeType*, NodeType*> scapegoatAndParent = find_scapegoat(stack);
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AssertRelease(NULL != scapegoatAndParent.first);
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NodeType* const newRoot = Rebalance(scapegoatAndParent.first, newNodeDepth + 1);
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NodeType* const newRoot = rebalance(scapegoatAndParent.first, newNodeDepth + 1);
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NodeType* const parent = scapegoatAndParent.second;
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if (parent == NULL) {
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Assert(scapegoatAndParent.first == m_root);
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@ -142,14 +142,14 @@ namespace duckmem {
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}
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#if defined(SCAPEGOATTREE_PARANOID)
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AssertNodeSize(m_root);
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Assert(FindMaxDepth(m_root) <= GetMaxBalancedDepth(static_cast<size_type>(m_root->size), m_alphainvloginv));
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Assert(find_max_depth(m_root) <= get_max_balanced_depth(static_cast<size_type>(m_root->size), m_alphainvloginv));
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#endif
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//Rebuild the stack.
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//TODO: this is ugly and slow, see if you can find a better way
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stack.clear();
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GetInsertParent(m_root, parKey, stack);
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get_insert_parent(m_root, parKey, stack);
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newNodeDepth = stack.size() - 1;
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Assert(IsAlphaHeightBalanced(newNodeDepth, this->size()));
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Assert(is_alpha_height_balanced(newNodeDepth, this->size()));
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}
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return std::pair<iterator, bool>(iterator(stack.begin(), newNodeDepth + 1, duckmath::log2_fast(m_reserved + 1)), true);
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}
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@ -158,26 +158,26 @@ namespace duckmem {
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///-------------------------------------------------------------------------
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///-------------------------------------------------------------------------
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template <typename K>
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typename ScapegoatTree<K>::NodeType* ScapegoatTree<K>::Rebalance (NodeType* parSubtree, size_type parDepthHint) {
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typename ScapegoatTree<K>::NodeType* ScapegoatTree<K>::rebalance (NodeType* parSubtree, size_type parDepthHint) {
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#if defined(SCAPEGOATTREE_VERBOSE)
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std::cout << "Rebalancing subtree" << std::endl;
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#endif
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Assert(NULL != parSubtree);
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NodeType* const newRoot = Compress_first(parSubtree, parDepthHint);
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NodeType* const retVal = Compress(newRoot);
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NodeType* const newRoot = compress_first(parSubtree, parDepthHint);
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NodeType* const retVal = compress(newRoot);
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return retVal;
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}
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///-------------------------------------------------------------------------
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///-------------------------------------------------------------------------
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template <typename K>
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typename ScapegoatTree<K>::NodeTypePair ScapegoatTree<K>::FindScapegoat (NodeStack& parParents) const {
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typename ScapegoatTree<K>::NodeTypePair ScapegoatTree<K>::find_scapegoat (NodeStack& parParents) const {
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Assert(not parParents.empty());
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const size_type height = parParents.size();
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for (size_type z = parParents.size() - 1; z > 0; --z) {
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NodeType& currNode = *(parParents[z - 1]);
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Assert(height - z > 0);
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if (not IsAlphaHeightBalanced(height - z, static_cast<size_type>(currNode.size))) {
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if (not is_alpha_height_balanced(height - z, static_cast<size_type>(currNode.size))) {
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NodeType* parent;
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if (z == 1)
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parent = NULL;
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@ -194,7 +194,7 @@ namespace duckmem {
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///-------------------------------------------------------------------------
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///-------------------------------------------------------------------------
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template <typename K>
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typename ScapegoatTree<K>::NodeType* ScapegoatTree<K>::GetNewNode (const K& parKey) {
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typename ScapegoatTree<K>::NodeType* ScapegoatTree<K>::get_new_node (const K& parKey) {
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return new NodeType(parKey);
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}
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@ -202,7 +202,7 @@ namespace duckmem {
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///-------------------------------------------------------------------------
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template <typename K>
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template <typename T>
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T* ScapegoatTree<K>::FindClosestMatch (T* parTree, const K& parKey) {
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T* ScapegoatTree<K>::find_closest_match (T* parTree, const K& parKey) {
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Assert(NULL != parTree);
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//if (parTree->left and parKey <= parTree->left->content)
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if (parTree->left and not (parTree->left->content < parKey))
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@ -217,7 +217,7 @@ namespace duckmem {
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///-------------------------------------------------------------------------
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///-------------------------------------------------------------------------
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template <typename K>
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typename ScapegoatTree<K>::NodeType* ScapegoatTree<K>::GetInsertParent (NodeType* parTree, const K& parKey, NodeStack& parRewind) {
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typename ScapegoatTree<K>::NodeType* ScapegoatTree<K>::get_insert_parent (NodeType* parTree, const K& parKey, NodeStack& parRewind) {
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Assert(NULL != parTree);
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NodeType* retVal = parTree;
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bool goLeft;
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@ -243,10 +243,10 @@ namespace duckmem {
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///-------------------------------------------------------------------------
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///-------------------------------------------------------------------------
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template <typename K>
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void ScapegoatTree<K>::DeleteNodes (NodeType* parNode) {
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void ScapegoatTree<K>::delete_nodes (NodeType* parNode) {
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if (parNode) {
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DeleteNodes(parNode->left);
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DeleteNodes(parNode->right);
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delete_nodes(parNode->left);
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delete_nodes(parNode->right);
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delete parNode;
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}
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}
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@ -254,7 +254,7 @@ namespace duckmem {
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///-------------------------------------------------------------------------
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///-------------------------------------------------------------------------
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template <typename K>
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bool ScapegoatTree<K>::IsAlphaHeightBalanced (size_type parHeight, size_type parSize) const {
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bool ScapegoatTree<K>::is_alpha_height_balanced (size_type parHeight, size_type parSize) const {
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const float sz = static_cast<float>(parSize);
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const float ha = std::floor(std::log(sz) * m_alphainvloginv);
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const float height = static_cast<float>(parHeight);
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@ -264,15 +264,15 @@ namespace duckmem {
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///-------------------------------------------------------------------------
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///Stout/Warren vine to tree.
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///This function destroys the links of the given subtree and creates a
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///structure that is suitable for Compress(). Input is treated as if it
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///structure that is suitable for compress(). Input is treated as if it
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///was a linked list.
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///-------------------------------------------------------------------------
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template <typename K>
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typename ScapegoatTree<K>::NodeType* ScapegoatTree<K>::Compress_first (NodeType* parFrom, size_type parDepthHint) {
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typename ScapegoatTree<K>::NodeType* ScapegoatTree<K>::compress_first (NodeType* parFrom, size_type parDepthHint) {
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const size_type vineSize = static_cast<size_type>(parFrom->size);
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const size_type iteratorDepth = parDepthHint;
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#if defined(SCAPEGOATTREE_VERBOSE)
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std::cout << "Compress_first(): vineSize = " << vineSize << ", iteratorDepth = " << iteratorDepth << std::endl;
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std::cout << "compress_first(): vineSize = " << vineSize << ", iteratorDepth = " << iteratorDepth << std::endl;
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#endif
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iterator itFirstStep(parFrom, iteratorDepth);
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@ -302,7 +302,7 @@ namespace duckmem {
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NodeWrapper child(&pseudorootMem);
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size_type iterationsCount;
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if (implem::IsPowerOfTwo(vineSize + 1))
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if (implem::is_power_of_two(vineSize + 1))
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iterationsCount = (1 << (duckmath::log2_fast(vineSize))) - 1;
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else
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iterationsCount = (vineSize - ((1 << duckmath::log2_fast(vineSize)) - 1));
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@ -347,7 +347,7 @@ namespace duckmem {
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Assert(vineSize == static_cast<size_type>(pseudorootMem.right->size));
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#if defined(SCAPEGOATTREE_PARANOID)
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AssertNodeSize(pseudorootMem.right);
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Assert(FindMaxDepth(pseudorootMem.right) <= vineSize);
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Assert(find_max_depth(pseudorootMem.right) <= vineSize);
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#endif
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return pseudorootMem.right;
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}
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@ -357,7 +357,7 @@ namespace duckmem {
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///Performs the second and subsequent steps for compressing.
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///-------------------------------------------------------------------------
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template <typename K>
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typename ScapegoatTree<K>::NodeType* ScapegoatTree<K>::Compress (NodeType* parFrom) {
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typename ScapegoatTree<K>::NodeType* ScapegoatTree<K>::compress (NodeType* parFrom) {
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Assert(NULL != parFrom);
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//We don't know if the tree is complete, so let's calculate its depth
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//rounded up to the nearest complete tree
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@ -366,7 +366,7 @@ namespace duckmem {
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const size_type treeHeight = duckmath::log2_fast(treeSize + (1 << m));
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#if defined(SCAPEGOATTREE_PARANOID)
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size_type maxDepthInTree = FindMaxDepth(parFrom);
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size_type maxDepthInTree = find_max_depth(parFrom);
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{
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//We know step 0 of compression has already been done, so on with
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//the spine size at step 1 (the one we're willing to do)
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@ -381,7 +381,7 @@ namespace duckmem {
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#if defined(SCAPEGOATTREE_VERBOSE)
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std::cout << "treeSize = " << treeSize << ", vineSize = " << vineSize << ", treeHeight = " << treeHeight << ", manually counted " << countedNodes << " nodes (" << count << ")\n";
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#endif
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Assert(implem::IsPowerOfTwo(countedNodes + 1));
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Assert(implem::is_power_of_two(countedNodes + 1));
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Assert(vineSize == countedNodes);
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}
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#endif
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@ -392,7 +392,7 @@ namespace duckmem {
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for (size_type k = 1; k < treeHeight - 1; ++k) {
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#if defined(SCAPEGOATTREE_VERBOSE)
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std::cout << "Compress() step " << k << std::endl;
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std::cout << "compress() step " << k << std::endl;
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#endif
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//The rebalanced tree takes treeHeight-1 steps. One step has been done
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//already, so we perform the remaining treeHeight-2 steps.
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@ -431,7 +431,7 @@ namespace duckmem {
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#if defined(SCAPEGOATTREE_PARANOID)
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AssertNodeSize(retVal);
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{
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const size_type newDepth = FindMaxDepth(retVal);
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const size_type newDepth = find_max_depth(retVal);
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Assert(newDepth <= maxDepthInTree);
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maxDepthInTree = newDepth;
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}
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@ -446,7 +446,7 @@ namespace duckmem {
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///-------------------------------------------------------------------------
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///-------------------------------------------------------------------------
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template <typename K>
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typename ScapegoatTree<K>::size_type ScapegoatTree<K>::AssertNodeSize (const NodeType* parSubtree) {
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typename ScapegoatTree<K>::size_type ScapegoatTree<K>::assert_node_size (const NodeType* parSubtree) {
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Assert(parSubtree);
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typename NodeType::size_type localSize = 1;
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@ -463,7 +463,7 @@ namespace duckmem {
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///-------------------------------------------------------------------------
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///-------------------------------------------------------------------------
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template <typename K>
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typename ScapegoatTree<K>::size_type ScapegoatTree<K>::FindMaxDepth_rec (const NodeType* parSubtree) {
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typename ScapegoatTree<K>::size_type ScapegoatTree<K>::find_max_depth_rec (const NodeType* parSubtree) {
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Assert(parSubtree);
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typename NodeType::size_type depthLeft = 0;
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typename NodeType::size_type depthRight = 0;
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@ -482,7 +482,7 @@ namespace duckmem {
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///-------------------------------------------------------------------------
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///-------------------------------------------------------------------------
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template <typename K>
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typename ScapegoatTree<K>::size_type ScapegoatTree<K>::GetMaxBalancedDepth (size_type parSize, float parAlphaInvLogInv) {
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typename ScapegoatTree<K>::size_type ScapegoatTree<K>::get_max_balanced_depth (size_type parSize, float parAlphaInvLogInv) {
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const float ha = std::log(static_cast<float>(parSize)) * parAlphaInvLogInv;
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return static_cast<size_type>(ha);
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}
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@ -494,10 +494,10 @@ namespace duckmem {
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if (NULL == m_root)
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return iterator();
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const size_type depthHint = GetTreeMinDepthIB(m_reserved, m_alphainvloginv) + 1;
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const size_type depthHint = get_tree_min_depth_ib(m_reserved, m_alphainvloginv) + 1;
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#if defined(SCAPEGOATTREE_PARANOID)
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Assert(IsAlphaHeightBalanced(FindMaxDepth(m_root), static_cast<size_type>(m_root->size)));
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Assert(FindMaxDepth(m_root) + 1 <= depthHint);
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Assert(is_alpha_height_balanced(find_max_depth(m_root), static_cast<size_type>(m_root->size)));
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Assert(find_max_depth(m_root) + 1 <= depthHint);
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#endif
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return iterator(m_root, depthHint + 1);
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}
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if (NULL == m_root)
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return iterator();
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const size_type depthHint = GetTreeMinDepthIB(m_count, m_alphainvloginv) + 1;
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const size_type depthHint = get_tree_min_depth_ib(m_count, m_alphainvloginv) + 1;
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#if defined(SCAPEGOATTREE_PARANOID)
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Assert(IsAlphaHeightBalanced(FindMaxDepth(m_root), static_cast<size_type>(m_root->size)));
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Assert(FindMaxDepth(m_root) + 1 <= depthHint);
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Assert(is_alpha_height_balanced(find_max_depth(m_root), static_cast<size_type>(m_root->size)));
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Assert(find_max_depth(m_root) + 1 <= depthHint);
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#endif
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return const_iterator(m_root, depthHint + 1);
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}
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///Get min tree depth if balanced
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///-------------------------------------------------------------------------
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template <typename K>
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typename ScapegoatTree<K>::size_type ScapegoatTree<K>::GetTreeMinDepthIB (size_type parSize, float parAlphaInvLogInv) {
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typename ScapegoatTree<K>::size_type ScapegoatTree<K>::get_tree_min_depth_ib (size_type parSize, float parAlphaInvLogInv) {
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const float sz = static_cast<float>(parSize);
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const size_type roundedDownDepthBase2 = duckmath::log2_fast(parSize + 1);
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const float nodesAtLastLevel = (roundedDownDepthBase2 == 0 ? 0 : static_cast<float>(1 << roundedDownDepthBase2) - 1.0f);
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///-------------------------------------------------------------------------
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template <typename K>
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void ScapegoatTree<K>::clear() {
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DeleteNodes(m_root);
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delete_nodes(m_root);
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m_count = 0;
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m_countMax = 0;
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m_root = NULL;
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///-------------------------------------------------------------------------
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///-------------------------------------------------------------------------
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template <typename K>
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typename ScapegoatTree<K>::NodeType* ScapegoatTree<K>::FindIFP (const NodeType* parTree, const K& parKey) {
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typename ScapegoatTree<K>::NodeType* ScapegoatTree<K>::find_ifp (const NodeType* parTree, const K& parKey) {
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while (parTree) {
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if (parKey < parTree->content)
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parTree = parTree->left;
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///-------------------------------------------------------------------------
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///-------------------------------------------------------------------------
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template <typename K>
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typename ScapegoatTree<K>::NodeType* ScapegoatTree<K>::FindParentIFP (NodeType* parTree, const NodeType* parSearchNodeAddr) {
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typename ScapegoatTree<K>::NodeType* ScapegoatTree<K>::find_parent_ifp (NodeType* parTree, const NodeType* parSearchNodeAddr) {
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if (parTree == parSearchNodeAddr)
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return NULL;
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NodeType* parent = parTree;
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///get the in-order predecessor.
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///-------------------------------------------------------------------------
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template <typename K>
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typename ScapegoatTree<K>::NodeType* ScapegoatTree<K>::DetachBottomNode (NodeType* parTree, bool parSuccessor) {
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typename ScapegoatTree<K>::NodeType* ScapegoatTree<K>::detach_bottom_node (NodeType* parTree, bool parSuccessor) {
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AssertRelease(NULL != parTree);
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AssertRelease(NULL != parTree->left and NULL != parTree->right);
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if (parSuccessor) {
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@ -614,7 +614,7 @@ namespace duckmem {
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///-------------------------------------------------------------------------
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///-------------------------------------------------------------------------
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template <typename K>
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bool ScapegoatTree<K>::Include (const K& parSearch) const {
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bool ScapegoatTree<K>::include (const K& parSearch) const {
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const NodeType* const found = FindIFP(m_root, parSearch);
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Assert(not found or not (parSearch < found->content or found->content < parSearch));
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return static_cast<bool>(NULL != found);
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@ -623,12 +623,12 @@ namespace duckmem {
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///-------------------------------------------------------------------------
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///-------------------------------------------------------------------------
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template <typename K>
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void ScapegoatTree<K>::RebalanceAfterDeletionIFN() {
|
||||
void ScapegoatTree<K>::rebalance_after_deletion_ifn() {
|
||||
const float sz = static_cast<float>(m_count);
|
||||
const float m = static_cast<float>(m_countMax);
|
||||
if (sz < m_alpha * m) {
|
||||
const size_type sizeHint = static_cast<size_type>(std::ceil(std::log(sz) * m_alphainvloginv)) + 1;
|
||||
Rebalance(m_root, sizeHint);
|
||||
rebalance(m_root, sizeHint);
|
||||
m_countMax = m_count;
|
||||
}
|
||||
}
|
||||
|
@ -669,7 +669,7 @@ namespace duckmem {
|
|||
}
|
||||
--m_count;
|
||||
delete dele;
|
||||
RebalanceAfterDeletionIFN();
|
||||
rebalance_after_deletion_ifn();
|
||||
}
|
||||
|
||||
// ///-------------------------------------------------------------------------
|
||||
|
|
|
@ -31,7 +31,7 @@ namespace duckmem {
|
|||
|
||||
namespace implem {
|
||||
[[gnu::pure]]
|
||||
inline bool IsPowerOfTwo (unsigned int parValue) {
|
||||
inline bool is_power_of_two (unsigned int parValue) {
|
||||
return (parValue != 0 and (parValue bitand (~parValue + 1)) == parValue);
|
||||
}
|
||||
} //namespace implem
|
||||
|
@ -88,8 +88,8 @@ namespace duckmem {
|
|||
explicit ScapegoatTree ( float parAlpha );
|
||||
~ScapegoatTree ( void );
|
||||
|
||||
float GetAlpha ( void ) const { return m_alpha; }
|
||||
bool Include ( const K& parSearch ) const;
|
||||
float get_alpha ( void ) const { return m_alpha; }
|
||||
bool include ( const K& parSearch ) const;
|
||||
std::pair<iterator, bool> insert ( const K& parKey );
|
||||
iterator insert ( const iterator&, const K& parValue );
|
||||
bool empty ( void ) const { return m_count == 0; }
|
||||
|
@ -108,26 +108,26 @@ namespace duckmem {
|
|||
|
||||
private:
|
||||
template <typename T>
|
||||
static T* FindClosestMatch ( T* parTree, const K& parKey );
|
||||
static NodeType* GetInsertParent ( NodeType* parTree, const K& parKey, NodeStack& parRewind );
|
||||
static NodeType* FindIFP ( const NodeType* parTree, const K& parKey );
|
||||
static NodeType* FindParentIFP ( NodeType* parTree, const NodeType* parSearchNodeAddr );
|
||||
static NodeType* GetNewNode ( const K& parKey );
|
||||
static void DeleteNodes ( NodeType* parNode );
|
||||
[[gnu::pure]] bool IsAlphaHeightBalanced ( size_type parHeight, size_type parSize ) const;
|
||||
NodeTypePair FindScapegoat ( NodeStack& parParents ) const;
|
||||
static NodeType* Rebalance ( NodeType* parSubtree, size_type parDepthHint );
|
||||
static NodeType* Compress_first ( NodeType* parFrom, size_type parDepthHint );
|
||||
static NodeType* Compress ( NodeType* parFrom );
|
||||
[[gnu::pure]] static size_type GetMaxBalancedDepth ( size_type parSize, float parAlphaInvLogInv );
|
||||
[[gnu::pure]] static size_type GetTreeMinDepthIB ( size_type parSize, float parAlphaInvLogInv );
|
||||
static NodeType* DetachBottomNode ( NodeType* parTree, bool parSuccessor );
|
||||
void RebalanceAfterDeletionIFN ( void );
|
||||
static T* find_closest_match ( T* parTree, const K& parKey );
|
||||
static NodeType* get_insert_parent ( NodeType* parTree, const K& parKey, NodeStack& parRewind );
|
||||
static NodeType* find_ifp ( const NodeType* parTree, const K& parKey );
|
||||
static NodeType* find_parent_ifp ( NodeType* parTree, const NodeType* parSearchNodeAddr );
|
||||
static NodeType* get_new_node ( const K& parKey );
|
||||
static void delete_nodes ( NodeType* parNode );
|
||||
[[gnu::pure]] bool is_alpha_height_balanced ( size_type parHeight, size_type parSize ) const;
|
||||
NodeTypePair find_scapegoat ( NodeStack& parParents ) const;
|
||||
static NodeType* rebalance ( NodeType* parSubtree, size_type parDepthHint );
|
||||
static NodeType* compress_first ( NodeType* parFrom, size_type parDepthHint );
|
||||
static NodeType* compress ( NodeType* parFrom );
|
||||
[[gnu::pure]] static size_type get_max_balanced_depth ( size_type parSize, float parAlphaInvLogInv );
|
||||
[[gnu::pure]] static size_type get_tree_min_depth_ib ( size_type parSize, float parAlphaInvLogInv );
|
||||
static NodeType* detach_bottom_node ( NodeType* parTree, bool parSuccessor );
|
||||
void rebalance_after_deletion_ifn ( void );
|
||||
|
||||
#if defined(SCAPEGOATTREE_PARANOID)
|
||||
static size_type AssertNodeSize ( const NodeType* parSubtree );
|
||||
static size_type FindMaxDepth ( const NodeType* parSubtree ) { return FindMaxDepth_rec(parSubtree) - 1; }
|
||||
static size_type FindMaxDepth_rec ( const NodeType* parSubtree );
|
||||
static size_type assert_node_size ( const NodeType* parSubtree );
|
||||
static size_type find_max_depth ( const NodeType* parSubtree ) { return FindMaxDepth_rec(parSubtree) - 1; }
|
||||
static size_type find_max_depth_rec ( const NodeType* parSubtree );
|
||||
#endif
|
||||
|
||||
NodeType* m_root;
|
||||
|
|
Loading…
Reference in a new issue