From fdbd907ab5eff81a8eb2a32b9d028ccc0cabb780 Mon Sep 17 00:00:00 2001 From: nicehero <85948597@qq.com> Date: Wed, 29 Dec 2021 22:30:13 +0800 Subject: [PATCH 01/10] nicehero version --- avl_array.h | 1960 ++++++++++++++++++++++++++----------------- benchmark.cpp | 206 +++++ benchmark.py | 47 ++ benchmark.txt | 6 + image/1.png | Bin 0 -> 27106 bytes image/2.png | Bin 0 -> 29133 bytes image/3.png | Bin 0 -> 30609 bytes image/4.png | Bin 0 -> 27265 bytes readme.md | 34 +- result.txt | 155 ++++ static_avl.hpp | 1249 +++++++++++++++++++++++++++ static_vector.hpp | 1480 ++++++++++++++++++++++++++++++++ test/test_suite.cpp | 69 +- 13 files changed, 4407 insertions(+), 799 deletions(-) create mode 100644 benchmark.cpp create mode 100644 benchmark.py create mode 100644 benchmark.txt create mode 100644 image/1.png create mode 100644 image/2.png create mode 100644 image/3.png create mode 100644 image/4.png create mode 100644 result.txt create mode 100644 static_avl.hpp create mode 100644 static_vector.hpp diff --git a/avl_array.h b/avl_array.h index 32d829e..e609263 100644 --- a/avl_array.h +++ b/avl_array.h @@ -1,4 +1,5 @@ /////////////////////////////////////////////////////////////////////////////// +// nicehero forked version // \author (c) Marco Paland (info@paland.com) // 2017-2020, paland consult, Hannover, Germany // @@ -10,10 +11,10 @@ // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell // copies of the Software, and to permit persons to whom the Software is // furnished to do so, subject to the following conditions: -// +// // The above copyright notice and this permission notice shall be included in // all copies or substantial portions of the Software. -// +// // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE @@ -42,756 +43,1207 @@ #define _AVL_ARRAY_H_ #include - - -/** - * \param Key The key type. The type (class) must provide a 'less than' and 'equal to' operator - * \param T The Data type - * \param size_type Container size type - * \param Size Container size - * \param Fast If true every node stores an extra parent index. This increases memory but speed up insert/erase by factor 10 - */ -template -class avl_array -{ - // child index pointer class - typedef struct tag_child_type { - size_type left; - size_type right; - } child_type; - - // node storage, due to possible structure packing effects, single arrays are used instead of a 'node' structure - Key key_[Size]; // node key - T val_[Size]; // node value - std::int8_t balance_[Size]; // subtree balance - child_type child_[Size]; // node childs - size_type size_; // actual size - size_type root_; // root node - size_type parent_[Fast ? Size : 1]; // node parent, use one element if not needed (zero sized array is not allowed) - - // invalid index (like 'nullptr' in a pointer implementation) - static const size_type INVALID_IDX = Size; - - // iterator class - typedef class tag_avl_array_iterator - { - avl_array* instance_; // array instance - size_type idx_; // actual node - - friend avl_array; // avl_array may access index pointer - - public: - // ctor - tag_avl_array_iterator(avl_array* instance = nullptr, size_type idx = 0U) - : instance_(instance) - , idx_(idx) - { } - - inline tag_avl_array_iterator& operator=(const tag_avl_array_iterator& other) - { - instance_ = other.instance_; - idx_ = other.idx_; - return *this; - } - - inline bool operator==(const tag_avl_array_iterator& rhs) const - { return idx_ == rhs.idx_; } - - inline bool operator!=(const tag_avl_array_iterator& rhs) const - { return !(*this == rhs); } - - // dereference - access value - inline T& operator*() const - { return val(); } - - // access value - inline T& val() const - { return instance_->val_[idx_]; } - - // access key - inline Key& key() const - { return instance_->key_[idx_]; } - - // preincrement - tag_avl_array_iterator& operator++() - { - // end reached? - if (idx_ >= Size) { - return *this; - } - // take left most child of right child, if not existent, take parent - size_type i = instance_->child_[idx_].right; - if (i != instance_->INVALID_IDX) { - // successor is the furthest left node of right subtree - for (; i != instance_->INVALID_IDX; i = instance_->child_[i].left) { - idx_ = i; - } - } - else { - // have already processed the left subtree, and - // there is no right subtree. move up the tree, - // looking for a parent for which nodePtr is a left child, - // stopping if the parent becomes NULL. a non-NULL parent - // is the successor. if parent is NULL, the original node - // was the last node inorder, and its successor - // is the end of the list - i = instance_->get_parent(idx_); - while ((i != instance_->INVALID_IDX) && (idx_ == instance_->child_[i].right)) { - idx_ = i; - i = instance_->get_parent(idx_); - } - idx_ = i; - } - return *this; - } - - // postincrement - inline tag_avl_array_iterator operator++(int) - { - tag_avl_array_iterator _copy = *this; - ++(*this); - return _copy; - } - } avl_array_iterator; - - -public: - - typedef T value_type; - typedef T* pointer; - typedef const T* const_pointer; - typedef T& reference; - typedef const T& const_reference; - typedef Key key_type; - typedef avl_array_iterator iterator; - - - // ctor - avl_array() - : size_(0U) - , root_(Size) - { } - - - // iterators - inline iterator begin() - { - size_type i = INVALID_IDX; - if (root_ != INVALID_IDX) { - // find smallest element, it's the farthest node left from root - for (i = root_; child_[i].left != INVALID_IDX; i = child_[i].left); - } - return iterator(this, i); - } - - inline iterator end() - { return iterator(this, INVALID_IDX); } - - - // capacity - inline size_type size() const - { return size_; } - - inline bool empty() const - { return size_ == static_cast(0); } - - inline size_type max_size() const - { return Size; } - - - /** - * Clear the container - */ - inline void clear() - { - size_ = 0U; - root_ = INVALID_IDX; - } - - - /** - * Insert or update an element - * \param key The key to insert. If the key already exists, it is updated - * \param val Value to insert or update - * \return True if the key was successfully inserted or updated, false if container is full - */ - bool insert(const key_type& key, const value_type& val) - { - if (root_ == INVALID_IDX) { - key_[size_] = key; - val_[size_] = val; - balance_[size_] = 0; - child_[size_] = { INVALID_IDX, INVALID_IDX }; - set_parent(size_, INVALID_IDX); - root_ = size_++; - return true; - } - - for (size_type i = root_; i != INVALID_IDX; i = (key < key_[i]) ? child_[i].left : child_[i].right) { - if (key < key_[i]) { - if (child_[i].left == INVALID_IDX) { - if (size_ >= max_size()) { - // container is full - return false; - } - key_[size_] = key; - val_[size_] = val; - balance_[size_] = 0; - child_[size_] = { INVALID_IDX, INVALID_IDX }; - set_parent(size_, i); - child_[i].left = size_++; - insert_balance(i, 1); - return true; - } - } - else if (key_[i] == key) { - // found same key, update node - val_[i] = val; - return true; - } - else { - if (child_[i].right == INVALID_IDX) { - if (size_ >= max_size()) { - // container is full - return false; - } - key_[size_] = key; - val_[size_] = val; - balance_[size_] = 0; - child_[size_] = { INVALID_IDX, INVALID_IDX }; - set_parent(size_, i); - child_[i].right = size_++; - insert_balance(i, -1); - return true; - } - } - } - // node doesn't fit (should not happen) - discard it anyway - return false; - } - - - /** - * Find an element - * \param key The key to find - * \param val If key is found, the value of the element is set - * \return True if key was found - */ - inline bool find(const key_type& key, value_type& val) const - { - for (size_type i = root_; i != INVALID_IDX;) { - if (key < key_[i]) { - i = child_[i].left; - } - else if (key == key_[i]) { - // found key - val = val_[i]; - return true; - } - else { - i = child_[i].right; - } - } - // key not found - return false; - } - - - /** - * Find an element and return an iterator as result - * \param key The key to find - * \return Iterator if key was found, else end() is returned - */ - inline iterator find(const key_type& key) - { - for (size_type i = root_; i != INVALID_IDX;) { - if (key < key_[i]) { - i = child_[i].left; - } else if (key == key_[i]) { - // found key - return iterator(this, i); - } - else { - i = child_[i].right; - } - } - // key not found, return end() iterator - return end(); - } - - - /** - * Count elements with a specific key - * Searches the container for elements with a key equivalent to key and returns the number of matches. - * Because all elements are unique, the function can only return 1 (if the element is found) or zero (otherwise). - * \param key The key to find/count - * \return 0 if key was not found, 1 if key was found - */ - inline size_type count(const key_type& key) - { - return find(key) != end() ? 1U : 0U; - } - - - /** - * Remove element by key - * \param key The key of the element to remove - * \return True if the element ws removed, false if key was not found - */ - inline bool erase(const key_type& key) - { - return erase(find(key)); - } - - - /** - * Remove element by iterator position - * THIS ERASE OPERATION INVALIDATES ALL ITERATORS! - * \param position The iterator position of the element to remove - * \return True if the element was successfully removed, false if error - */ - bool erase(iterator position) - { - if (empty() || (position == end())) { - return false; - } - - const size_type node = position.idx_; - const size_type left = child_[node].left; - const size_type right = child_[node].right; - - if (left == INVALID_IDX) { - if (right == INVALID_IDX) { - const size_type parent = get_parent(node); - if (parent != INVALID_IDX) { - if (child_[parent].left == node) { - child_[parent].left = INVALID_IDX; - delete_balance(parent, -1); - } - else { - child_[parent].right = INVALID_IDX; - delete_balance(parent, 1); - } - } - else { - root_ = INVALID_IDX; - } - } - else { - const size_type parent = get_parent(node); - if (parent != INVALID_IDX) { - child_[parent].left == node ? child_[parent].left = right : child_[parent].right = right; - } - else { - root_ = right; - } - set_parent(right, parent); - delete_balance(right, 0); - } - } - else if (right == INVALID_IDX) { - const size_type parent = get_parent(node); - if (parent != INVALID_IDX) { - child_[parent].left == node ? child_[parent].left = left : child_[parent].right = left; - } - else { - root_ = left; - } - set_parent(left, parent); - delete_balance(left, 0); - } - else { - size_type successor = right; - if (child_[successor].left == INVALID_IDX) { - const size_type parent = get_parent(node); - child_[successor].left = left; - balance_[successor] = balance_[node]; - set_parent(successor, parent); - set_parent(left, successor); - - if (node == root_) { - root_ = successor; - } - else { - if (child_[parent].left == node) { - child_[parent].left = successor; - } - else { - child_[parent].right = successor; - } - } - delete_balance(successor, 1); - } - else { - while (child_[successor].left != INVALID_IDX) { - successor = child_[successor].left; - } - - const size_type parent = get_parent(node); - const size_type successor_parent = get_parent(successor); - const size_type successor_right = child_[successor].right; - - if (child_[successor_parent].left == successor) { - child_[successor_parent].left = successor_right; - } - else { - child_[successor_parent].right = successor_right; - } - - set_parent(successor_right, successor_parent); - set_parent(successor, parent); - set_parent(right, successor); - set_parent(left, successor); - child_[successor].left = left; - child_[successor].right = right; - balance_[successor] = balance_[node]; - - if (node == root_) { - root_ = successor; - } - else { - if (child_[parent].left == node) { - child_[parent].left = successor; - } - else { - child_[parent].right = successor; - } - } - delete_balance(successor_parent, -1); - } - } - size_--; - - // relocate the node at the end to the deleted node, if it's not the deleted one - if (node != size_) { - size_type parent = INVALID_IDX; - if (root_ == size_) { - root_ = node; - } - else { - parent = get_parent(size_); - child_[parent].left == size_ ? child_[parent].left = node : child_[parent].right = node; - } - - // correct childs parent - set_parent(child_[size_].left, node); - set_parent(child_[size_].right, node); - - // move content - key_[node] = key_[size_]; - val_[node] = val_[size_]; - balance_[node] = balance_[size_]; - child_[node] = child_[size_]; - set_parent(node, parent); - } - - return true; - } - - - /** - * Integrity (self) check - * \return True if the tree intergity is correct, false if error (should not happen normally) - */ - bool check() const - { - // check root - if (empty() && (root_ != INVALID_IDX)) { - // invalid root - return false; - } - if (size() && root_ >= size()) { - // root out of bounds - return false; - } - - // check tree - for (size_type i = 0U; i < size(); ++i) - { - if ((child_[i].left != INVALID_IDX) && (!(key_[child_[i].left] < key_[i]) || (key_[child_[i].left] == key_[i]))) { - // wrong key order to the left - return false; - } - if ((child_[i].right != INVALID_IDX) && ((key_[child_[i].right] < key_[i]) || (key_[child_[i].right] == key_[i]))) { - // wrong key order to the right - return false; - } - const size_type parent = get_parent(i); - if ((i != root_) && (parent == INVALID_IDX)) { - // no parent - return false; - } - if ((i == root_) && (parent != INVALID_IDX)) { - // invalid root parent - return false; - } - } - // check passed - return true; - } - - - ///////////////////////////////////////////////////////////////////////////// - // Helper functions -private: - - // find parent element - inline size_type get_parent(size_type node) const - { - if (Fast) { - return parent_[node]; - } - else { - const Key key_node = key_[node]; - for (size_type i = root_; i != INVALID_IDX; i = (key_node < key_[i]) ? child_[i].left : child_[i].right) { - if ((child_[i].left == node) || (child_[i].right == node)) { - // found parent - return i; - } - } - // parent not found - return INVALID_IDX; - } - } - - - // set parent element (only in Fast version) - inline void set_parent(size_type node, size_type parent) - { - if (Fast) { - if (node != INVALID_IDX) { - parent_[node] = parent; - } - } - } - - - void insert_balance(size_type node, std::int8_t balance) - { - while (node != INVALID_IDX) { - balance = (balance_[node] += balance); - - if (balance == 0) { - return; - } - else if (balance == 2) { - if (balance_[child_[node].left] == 1) { - rotate_right(node); - } - else { - rotate_left_right(node); - } - return; - } - else if (balance == -2) { - if (balance_[child_[node].right] == -1) { - rotate_left(node); - } - else { - rotate_right_left(node); - } - return; - } - - const size_type parent = get_parent(node); - if (parent != INVALID_IDX) { - balance = child_[parent].left == node ? 1 : -1; - } - node = parent; - } - } - - - void delete_balance(size_type node, std::int8_t balance) - { - while (node != INVALID_IDX) { - balance = (balance_[node] += balance); - - if (balance == -2) { - if (balance_[child_[node].right] <= 0) { - node = rotate_left(node); - if (balance_[node] == 1) { - return; - } - } - else { - node = rotate_right_left(node); - } - } - else if (balance == 2) { - if (balance_[child_[node].left] >= 0) { - node = rotate_right(node); - if (balance_[node] == -1) { - return; - } - } - else { - node = rotate_left_right(node); - } - } - else if (balance != 0) { - return; - } - - if (node != INVALID_IDX) { - const size_type parent = get_parent(node); - if (parent != INVALID_IDX) { - balance = child_[parent].left == node ? -1 : 1; - } - node = parent; - } - } - } - - - size_type rotate_left(size_type node) - { - const size_type right = child_[node].right; - const size_type right_left = child_[right].left; - const size_type parent = get_parent(node); - - set_parent(right, parent); - set_parent(node, right); - set_parent(right_left, node); - child_[right].left = node; - child_[node].right = right_left; - - if (node == root_) { - root_ = right; - } - else if (child_[parent].right == node) { - child_[parent].right = right; - } - else { - child_[parent].left = right; - } - - balance_[right]++; - balance_[node] = -balance_[right]; - - return right; - } - - - size_type rotate_right(size_type node) - { - const size_type left = child_[node].left; - const size_type left_right = child_[left].right; - const size_type parent = get_parent(node); - - set_parent(left, parent); - set_parent(node, left); - set_parent(left_right, node); - child_[left].right = node; - child_[node].left = left_right; - - if (node == root_) { - root_ = left; - } - else if (child_[parent].left == node) { - child_[parent].left = left; - } - else { - child_[parent].right = left; - } - - balance_[left]--; - balance_[node] = -balance_[left]; - - return left; - } - - - size_type rotate_left_right(size_type node) - { - const size_type left = child_[node].left; - const size_type left_right = child_[left].right; - const size_type left_right_right = child_[left_right].right; - const size_type left_right_left = child_[left_right].left; - const size_type parent = get_parent(node); - - set_parent(left_right, parent); - set_parent(left, left_right); - set_parent(node, left_right); - set_parent(left_right_right, node); - set_parent(left_right_left, left); - child_[node].left = left_right_right; - child_[left].right = left_right_left; - child_[left_right].left = left; - child_[left_right].right = node; - - if (node == root_) { - root_ = left_right; - } - else if (child_[parent].left == node) { - child_[parent].left = left_right; - } - else { - child_[parent].right = left_right; - } - - if (balance_[left_right] == 0) { - balance_[node] = 0; - balance_[left] = 0; - } - else if (balance_[left_right] == -1) { - balance_[node] = 0; - balance_[left] = 1; - } - else { - balance_[node] = -1; - balance_[left] = 0; - } - balance_[left_right] = 0; - - return left_right; - } - - - size_type rotate_right_left(size_type node) - { - const size_type right = child_[node].right; - const size_type right_left = child_[right].left; - const size_type right_left_left = child_[right_left].left; - const size_type right_left_right = child_[right_left].right; - const size_type parent = get_parent(node); - - set_parent(right_left, parent); - set_parent(right, right_left); - set_parent(node, right_left); - set_parent(right_left_left, node); - set_parent(right_left_right, right); - child_[node].right = right_left_left; - child_[right].left = right_left_right; - child_[right_left].right = right; - child_[right_left].left = node; - - if (node == root_) { - root_ = right_left; - } - else if (child_[parent].right == node) { - child_[parent].right = right_left; - } - else { - child_[parent].left = right_left; - } - - if (balance_[right_left] == 0) { - balance_[node] = 0; - balance_[right] = 0; - } - else if (balance_[right_left] == 1) { - balance_[node] = 0; - balance_[right] = -1; - } - else { - balance_[node] = 1; - balance_[right] = 0; - } - balance_[right_left] = 0; - - return right_left; - } -}; - +#include "static_vector.hpp" +#include + +namespace nicehero { + + /** + * \param Key The key type. The type (class) must provide a 'less than' and 'equal to' operator + * \param T The Data type + * \param size_type Container size type + * \param Size Container size + * \param Fast If true every node stores an extra parent index. This increases memory but speed up insert/erase by factor 10 + */ + template + class avl_array + { + template + using smallest_size_t + = conditional_t<(N < numeric_limits::max()), uint8_t, + conditional_t<(N < numeric_limits::max()), uint16_t, + conditional_t<(N < numeric_limits::max()), uint32_t, + conditional_t<(N < numeric_limits::max()), uint64_t, + size_t>>>>; + using size_type = smallest_size_t; + // child index pointer class + typedef struct tag_child_type { + size_type left; + size_type right; + } child_type; + + + // node storage, due to possible structure packing effects, single arrays are used instead of a 'node' structure + static_vector key_; // node key + static_vector val_; // node value + std::int8_t balance_[Size]; // subtree balance + child_type child_[Size]; // node childs + size_type size_; // actual size + size_type root_; // root node + size_type parent_[Fast ? Size : 1]; // node parent, use one element if not needed (zero sized array is not allowed) + + // invalid index (like 'nullptr' in a pointer implementation) + static const size_type INVALID_IDX = Size; + + // iterator class + typedef class tag_avl_array_iterator + { + avl_array* instance_; // array instance + size_type idx_; // actual node + + friend avl_array; // avl_array may access index pointer + + public: + // ctor + tag_avl_array_iterator(avl_array* instance = nullptr, size_type idx = 0U) + : instance_(instance) + , idx_(idx) + { } + + inline tag_avl_array_iterator& operator=(const tag_avl_array_iterator& other) + { + instance_ = other.instance_; + idx_ = other.idx_; + return *this; + } + + inline bool operator==(const tag_avl_array_iterator& rhs) const + { + return idx_ == rhs.idx_; + } + + inline bool operator!=(const tag_avl_array_iterator& rhs) const + { + return !(*this == rhs); + } + // dereference - access value + inline auto& operator*() const + { + return *this; + } + + // access value + inline T& val() const + { + auto& k = instance_->key_[idx_]; + auto& v = instance_->val_[idx_]; + return v; + } + + // access key + inline const Key& key() const + { + return instance_->key_[idx_]; + } + + // preincrement + tag_avl_array_iterator& operator++() + { + // end reached? + if (idx_ >= Size) { + return *this; + } + // take left most child of right child, if not existent, take parent + size_type i = instance_->child_[idx_].right; + if (i != instance_->INVALID_IDX) { + // successor is the furthest left node of right subtree + for (; i != instance_->INVALID_IDX; i = instance_->child_[i].left) { + idx_ = i; + } + } + else { + // have already processed the left subtree, and + // there is no right subtree. move up the tree, + // looking for a parent for which nodePtr is a left child, + // stopping if the parent becomes NULL. a non-NULL parent + // is the successor. if parent is NULL, the original node + // was the last node inorder, and its successor + // is the end of the list + i = instance_->get_parent(idx_); + while ((i != instance_->INVALID_IDX) && (idx_ == instance_->child_[i].right)) { + idx_ = i; + i = instance_->get_parent(idx_); + } + idx_ = i; + } + return *this; + } + + // postincrement + inline tag_avl_array_iterator operator++(int) + { + auto idx2 = idx_; + ++(*this); + return tag_avl_array_iterator(instance_,idx2); + } + } avl_array_iterator; + + + typedef class tag_avl_array_citerator + { + const avl_array* instance_; // array instance + size_type idx_; // actual node + + friend avl_array; // avl_array may access index pointer + + public: + // ctor + tag_avl_array_citerator(const avl_array* instance = nullptr, size_type idx = 0U) + : instance_(instance) + , idx_(idx) + { } + + inline tag_avl_array_citerator& operator=(const tag_avl_array_citerator& other) + { + instance_ = other.instance_; + idx_ = other.idx_; + return *this; + } + + inline bool operator==(const tag_avl_array_citerator& rhs) const + { + return idx_ == rhs.idx_; + } + + inline bool operator!=(const tag_avl_array_citerator& rhs) const + { + return !(*this == rhs); + } + // dereference - access value + inline auto& operator*() const + { + return *this; + } + + // access value + inline const T& val() const + { + auto& k = instance_->key_[idx_]; + auto& v = instance_->val_[idx_]; + return v; + } + + // access key + inline const Key& key() const + { + return instance_->key_[idx_]; + } + + // preincrement + tag_avl_array_citerator& operator++() + { + // end reached? + if (idx_ >= Size) { + return *this; + } + // take left most child of right child, if not existent, take parent + size_type i = instance_->child_[idx_].right; + if (i != instance_->INVALID_IDX) { + // successor is the furthest left node of right subtree + for (; i != instance_->INVALID_IDX; i = instance_->child_[i].left) { + idx_ = i; + } + } + else { + // have already processed the left subtree, and + // there is no right subtree. move up the tree, + // looking for a parent for which nodePtr is a left child, + // stopping if the parent becomes NULL. a non-NULL parent + // is the successor. if parent is NULL, the original node + // was the last node inorder, and its successor + // is the end of the list + i = instance_->get_parent(idx_); + while ((i != instance_->INVALID_IDX) && (idx_ == instance_->child_[i].right)) { + idx_ = i; + i = instance_->get_parent(idx_); + } + idx_ = i; + } + return *this; + } + + // postincrement + inline tag_avl_array_citerator operator++(int) + { + auto idx2 = idx_; + ++(*this); + return tag_avl_array_citerator(instance_, idx2); + } + } avl_array_citerator; + + + // reverse_iterator class + typedef class tag_avl_array_riterator + { + avl_array* instance_; // array instance + size_type idx_; // actual node + + friend avl_array; // avl_array may access index pointer + + public: + // ctor + tag_avl_array_riterator(avl_array* instance = nullptr, size_type idx = 0U) + : instance_(instance) + , idx_(idx) + { } + + inline tag_avl_array_riterator& operator=(const tag_avl_array_riterator& other) + { + instance_ = other.instance_; + idx_ = other.idx_; + return *this; + } + + inline bool operator==(const tag_avl_array_riterator& rhs) const + { + return idx_ == rhs.idx_; + } + + inline bool operator!=(const tag_avl_array_riterator& rhs) const + { + return !(*this == rhs); + } + + // dereference - access value + inline auto& operator*() const + { + return *this; + } + + // access value + inline T& val() const + { + auto& k = instance_->key_[idx_]; + auto& v = instance_->val_[idx_]; + return v; + } + + // access key + inline const Key& key() const + { + return instance_->key_[idx_]; + } + + // preincrement + tag_avl_array_riterator& operator++() + { + // end reached? + if (idx_ >= Size) { + return *this; + } + // take left most child of right child, if not existent, take parent + size_type i = instance_->child_[idx_].left; + if (i != instance_->INVALID_IDX) { + // successor is the furthest left node of right subtree + for (; i != instance_->INVALID_IDX; i = instance_->child_[i].right) { + idx_ = i; + } + } + else { + // have already processed the left subtree, and + // there is no right subtree. move up the tree, + // looking for a parent for which nodePtr is a left child, + // stopping if the parent becomes NULL. a non-NULL parent + // is the successor. if parent is NULL, the original node + // was the last node inorder, and its successor + // is the end of the list + i = instance_->get_parent(idx_); + while ((i != instance_->INVALID_IDX) && (idx_ == instance_->child_[i].left)) { + idx_ = i; + i = instance_->get_parent(idx_); + } + idx_ = i; + } + return *this; + } + + // postincrement + inline tag_avl_array_iterator operator++(int) + { + auto idx2 = idx_; + ++(*this); + return tag_avl_array_iterator(instance_,idx2); + } + } avl_array_riterator; + + typedef class tag_avl_array_criterator + { + const avl_array* instance_; // array instance + size_type idx_; // actual node + + friend avl_array; // avl_array may access index pointer + + public: + // ctor + tag_avl_array_criterator(const avl_array* instance = nullptr, size_type idx = 0U) + : instance_(instance) + , idx_(idx) + { } + + inline tag_avl_array_criterator& operator=(const tag_avl_array_criterator& other) + { + instance_ = other.instance_; + idx_ = other.idx_; + return *this; + } + + inline bool operator==(const tag_avl_array_criterator& rhs) const + { + return idx_ == rhs.idx_; + } + + inline bool operator!=(const tag_avl_array_criterator& rhs) const + { + return !(*this == rhs); + } + + // dereference - access value + inline auto& operator*() const + { + return *this; + } + + // access value + inline const T& val() const + { + auto& k = instance_->key_[idx_]; + auto& v = instance_->val_[idx_]; + return v; + } + + // access key + inline const Key& key() const + { + return instance_->key_[idx_]; + } + + // preincrement + tag_avl_array_criterator& operator++() + { + // end reached? + if (idx_ >= Size) { + return *this; + } + // take left most child of right child, if not existent, take parent + size_type i = instance_->child_[idx_].left; + if (i != instance_->INVALID_IDX) { + // successor is the furthest left node of right subtree + for (; i != instance_->INVALID_IDX; i = instance_->child_[i].right) { + idx_ = i; + } + } + else { + // have already processed the left subtree, and + // there is no right subtree. move up the tree, + // looking for a parent for which nodePtr is a left child, + // stopping if the parent becomes NULL. a non-NULL parent + // is the successor. if parent is NULL, the original node + // was the last node inorder, and its successor + // is the end of the list + i = instance_->get_parent(idx_); + while ((i != instance_->INVALID_IDX) && (idx_ == instance_->child_[i].left)) { + idx_ = i; + i = instance_->get_parent(idx_); + } + idx_ = i; + } + return *this; + } + + // postincrement + inline tag_avl_array_criterator operator++(int) + { + auto idx2 = idx_; + ++(*this); + return tag_avl_array_criterator(instance_, idx2); + } + } avl_array_criterator; + + public: + + typedef T value_type; + typedef T* pointer; + typedef const T* const_pointer; + typedef T& reference; + typedef const T& const_reference; + typedef Key key_type; + typedef avl_array_iterator iterator; + typedef avl_array_riterator reverse_iterator; + using const_iterator = avl_array_citerator; + using const_reverse_iterator = avl_array_criterator; + + + // ctor + avl_array() + : size_(0U) + , root_(Size) + { } + + + // iterators + inline iterator begin() + { + size_type i = INVALID_IDX; + if (root_ != INVALID_IDX) { + // find smallest element, it's the farthest node left from root + for (i = root_; child_[i].left != INVALID_IDX; i = child_[i].left); + } + return iterator(this, i); + } + + inline const_iterator begin() const + { + size_type i = INVALID_IDX; + if (root_ != INVALID_IDX) { + // find smallest element, it's the farthest node left from root + for (i = root_; child_[i].left != INVALID_IDX; i = child_[i].left); + } + return const_iterator(this, i); + } + + inline iterator end() + { + return iterator(this, INVALID_IDX); + } + + inline const_iterator end() const + { + return const_iterator(this, INVALID_IDX); + } + + inline reverse_iterator rbegin() + { + size_type i = INVALID_IDX; + if (root_ != INVALID_IDX) { + // find smallest element, it's the farthest node left from root + for (i = root_; child_[i].right != INVALID_IDX; i = child_[i].right); + } + return reverse_iterator(this, i); + } + + inline reverse_iterator rend() + { + return reverse_iterator(this, INVALID_IDX); + } + + inline const_reverse_iterator rbegin() const + { + size_type i = INVALID_IDX; + if (root_ != INVALID_IDX) { + // find smallest element, it's the farthest node left from root + for (i = root_; child_[i].right != INVALID_IDX; i = child_[i].right); + } + return const_reverse_iterator(this, i); + } + + inline const_reverse_iterator rend() const + { + return const_reverse_iterator(this, INVALID_IDX); + } + + + // capacity + inline size_type size() const + { + return size_; + } + + inline bool empty() const + { + return size_ == static_cast(0); + } + + inline size_type max_size() const + { + return Size; + } + + + /** + * Clear the container + */ + inline void clear() + { + size_ = 0U; + root_ = INVALID_IDX; + } + + + /** + * Insert or update an element + * \param key The key to insert. If the key already exists, it is updated + * \param val Value to insert or update + * \return True if the key was successfully inserted or updated, false if container is full + */ + bool insert(const key_type& key, const value_type& val) + { + if (root_ == INVALID_IDX) { + if (size_ >= key_.size()) { + key_.push_back(key); + val_.push_back(val); + } + else { + key_[size_] = key; + val_[size_] = val; + } + balance_[size_] = 0; + child_[size_] = { INVALID_IDX, INVALID_IDX }; + set_parent(size_, INVALID_IDX); + root_ = size_++; + return true; + } + + for (size_type i = root_; i != INVALID_IDX; i = (key < key_[i]) ? child_[i].left : child_[i].right) { + if (key < key_[i]) { + if (child_[i].left == INVALID_IDX) { + if (size_ >= max_size()) { + // container is full + return false; + } + if (size_ >= key_.size()) { + key_.push_back(key); + val_.push_back(val); + } + else { + key_[size_] = key; + val_[size_] = val; + } + balance_[size_] = 0; + child_[size_] = { INVALID_IDX, INVALID_IDX }; + set_parent(size_, i); + child_[i].left = size_++; + insert_balance(i, 1); + return true; + } + } + else if (key_[i] == key) { + // found same key, update node + val_[i] = val; + return true; + } + else { + if (child_[i].right == INVALID_IDX) { + if (size_ >= max_size()) { + // container is full + return false; + } + if (size_ >= key_.size()) { + key_.push_back(key); + val_.push_back(val); + } + else { + key_[size_] = key; + val_[size_] = val; + } + balance_[size_] = 0; + child_[size_] = { INVALID_IDX, INVALID_IDX }; + set_parent(size_, i); + child_[i].right = size_++; + insert_balance(i, -1); + return true; + } + } + } + // node doesn't fit (should not happen) - discard it anyway + return false; + } + template + bool emplace(const key_type& key,Args&&... args) noexcept + { + if (root_ == INVALID_IDX) { + if (size_ >= key_.size()) { + key_.push_back(key); + val_.emplace_back(forward(args)...); + } + else { + key_[size_] = key; + val_.emplace(size_, forward(args)...); + } + balance_[size_] = 0; + child_[size_] = { INVALID_IDX, INVALID_IDX }; + set_parent(size_, INVALID_IDX); + root_ = size_++; + return true; + } + + for (size_type i = root_; i != INVALID_IDX; i = (key < key_[i]) ? child_[i].left : child_[i].right) { + if (key < key_[i]) { + if (child_[i].left == INVALID_IDX) { + if (size_ >= max_size()) { + // container is full + return false; + } + if (size_ >= key_.size()) { + key_.push_back(key); + val_.emplace_back(forward(args)...); + } + else { + key_[size_] = key; + val_.emplace(size_, forward(args)...); + } + balance_[size_] = 0; + child_[size_] = { INVALID_IDX, INVALID_IDX }; + set_parent(size_, i); + child_[i].left = size_++; + insert_balance(i, 1); + return true; + } + } + else if (key_[i] == key) { + // found same key, update node + val_.emplace(i, forward(args)...); + return true; + } + else { + if (child_[i].right == INVALID_IDX) { + if (size_ >= max_size()) { + // container is full + return false; + } + if (size_ >= key_.size()) { + key_.push_back(key); + val_.emplace_back(forward(args)...); + } + else { + key_[size_] = key; + val_.emplace(size_, forward(args)...); + } + balance_[size_] = 0; + child_[size_] = { INVALID_IDX, INVALID_IDX }; + set_parent(size_, i); + child_[i].right = size_++; + insert_balance(i, -1); + return true; + } + } + } + // node doesn't fit (should not happen) - discard it anyway + return false; + } + + + /** + * Find an element + * \param key The key to find + * \param val If key is found, the value of the element is set + * \return True if key was found + */ + inline bool find(const key_type& key, value_type& val) const + { + for (size_type i = root_; i != INVALID_IDX;) { + if (key < key_[i]) { + i = child_[i].left; + } + else if (key == key_[i]) { + // found key + val = val_[i]; + return true; + } + else { + i = child_[i].right; + } + } + // key not found + return false; + } + + + /** + * Find an element and return an iterator as result + * \param key The key to find + * \return Iterator if key was found, else end() is returned + */ + inline iterator find(const key_type& key) + { + for (size_type i = root_; i != INVALID_IDX;) { + if (key < key_[i]) { + i = child_[i].left; + } + else if (key == key_[i]) { + // found key + return iterator(this, i); + } + else { + i = child_[i].right; + } + } + // key not found, return end() iterator + return end(); + } + + + /** + * Count elements with a specific key + * Searches the container for elements with a key equivalent to key and returns the number of matches. + * Because all elements are unique, the function can only return 1 (if the element is found) or zero (otherwise). + * \param key The key to find/count + * \return 0 if key was not found, 1 if key was found + */ + inline size_type count(const key_type& key) + { + return find(key) != end() ? 1U : 0U; + } + + + /** + * Remove element by key + * \param key The key of the element to remove + * \return True if the element ws removed, false if key was not found + */ + inline bool erase(const key_type& key) + { + return erase(find(key)); + } + + + /** + * Remove element by iterator position + * THIS ERASE OPERATION INVALIDATES ALL ITERATORS! + * \param position The iterator position of the element to remove + * \return True if the element was successfully removed, false if error + */ + bool erase(iterator position) + { + if (empty() || (position == end())) { + return false; + } + + const size_type node = position.idx_; + const size_type left = child_[node].left; + const size_type right = child_[node].right; + + if (left == INVALID_IDX) { + if (right == INVALID_IDX) { + const size_type parent = get_parent(node); + if (parent != INVALID_IDX) { + if (child_[parent].left == node) { + child_[parent].left = INVALID_IDX; + delete_balance(parent, -1); + } + else { + child_[parent].right = INVALID_IDX; + delete_balance(parent, 1); + } + } + else { + root_ = INVALID_IDX; + } + } + else { + const size_type parent = get_parent(node); + if (parent != INVALID_IDX) { + child_[parent].left == node ? child_[parent].left = right : child_[parent].right = right; + } + else { + root_ = right; + } + set_parent(right, parent); + delete_balance(right, 0); + } + } + else if (right == INVALID_IDX) { + const size_type parent = get_parent(node); + if (parent != INVALID_IDX) { + child_[parent].left == node ? child_[parent].left = left : child_[parent].right = left; + } + else { + root_ = left; + } + set_parent(left, parent); + delete_balance(left, 0); + } + else { + size_type successor = right; + if (child_[successor].left == INVALID_IDX) { + const size_type parent = get_parent(node); + child_[successor].left = left; + balance_[successor] = balance_[node]; + set_parent(successor, parent); + set_parent(left, successor); + + if (node == root_) { + root_ = successor; + } + else { + if (child_[parent].left == node) { + child_[parent].left = successor; + } + else { + child_[parent].right = successor; + } + } + delete_balance(successor, 1); + } + else { + while (child_[successor].left != INVALID_IDX) { + successor = child_[successor].left; + } + + const size_type parent = get_parent(node); + const size_type successor_parent = get_parent(successor); + const size_type successor_right = child_[successor].right; + + if (child_[successor_parent].left == successor) { + child_[successor_parent].left = successor_right; + } + else { + child_[successor_parent].right = successor_right; + } + + set_parent(successor_right, successor_parent); + set_parent(successor, parent); + set_parent(right, successor); + set_parent(left, successor); + child_[successor].left = left; + child_[successor].right = right; + balance_[successor] = balance_[node]; + + if (node == root_) { + root_ = successor; + } + else { + if (child_[parent].left == node) { + child_[parent].left = successor; + } + else { + child_[parent].right = successor; + } + } + delete_balance(successor_parent, -1); + } + } + size_--; + + // relocate the node at the end to the deleted node, if it's not the deleted one + if (node != size_) { + size_type parent = INVALID_IDX; + if (root_ == size_) { + root_ = node; + } + else { + parent = get_parent(size_); + child_[parent].left == size_ ? child_[parent].left = node : child_[parent].right = node; + } + + // correct childs parent + set_parent(child_[size_].left, node); + set_parent(child_[size_].right, node); + + // move content + key_[node] = key_[size_]; + val_[node] = val_[size_]; + balance_[node] = balance_[size_]; + child_[node] = child_[size_]; + set_parent(node, parent); + } + + return true; + } + + + /** + * Integrity (self) check + * \return True if the tree intergity is correct, false if error (should not happen normally) + */ + bool check() const + { + // check root + if (empty() && (root_ != INVALID_IDX)) { + // invalid root + return false; + } + if (size() && root_ >= size()) { + // root out of bounds + return false; + } + + // check tree + for (size_type i = 0U; i < size(); ++i) + { + if ((child_[i].left != INVALID_IDX) && (!(key_[child_[i].left] < key_[i]) || (key_[child_[i].left] == key_[i]))) { + // wrong key order to the left + return false; + } + if ((child_[i].right != INVALID_IDX) && ((key_[child_[i].right] < key_[i]) || (key_[child_[i].right] == key_[i]))) { + // wrong key order to the right + return false; + } + const size_type parent = get_parent(i); + if ((i != root_) && (parent == INVALID_IDX)) { + // no parent + return false; + } + if ((i == root_) && (parent != INVALID_IDX)) { + // invalid root parent + return false; + } + } + // check passed + return true; + } + + + ///////////////////////////////////////////////////////////////////////////// + // Helper functions + private: + + // find parent element + inline size_type get_parent(size_type node) const + { + if (Fast) { + return parent_[node]; + } + else { + const Key key_node = key_[node]; + for (size_type i = root_; i != INVALID_IDX; i = (key_node < key_[i]) ? child_[i].left : child_[i].right) { + if ((child_[i].left == node) || (child_[i].right == node)) { + // found parent + return i; + } + } + // parent not found + return INVALID_IDX; + } + } + + + // set parent element (only in Fast version) + inline void set_parent(size_type node, size_type parent) + { + if (Fast) { + if (node != INVALID_IDX) { + parent_[node] = parent; + } + } + } + + + void insert_balance(size_type node, std::int8_t balance) + { + while (node != INVALID_IDX) { + balance = (balance_[node] += balance); + + if (balance == 0) { + return; + } + else if (balance == 2) { + if (balance_[child_[node].left] == 1) { + rotate_right(node); + } + else { + rotate_left_right(node); + } + return; + } + else if (balance == -2) { + if (balance_[child_[node].right] == -1) { + rotate_left(node); + } + else { + rotate_right_left(node); + } + return; + } + + const size_type parent = get_parent(node); + if (parent != INVALID_IDX) { + balance = child_[parent].left == node ? 1 : -1; + } + node = parent; + } + } + + + void delete_balance(size_type node, std::int8_t balance) + { + while (node != INVALID_IDX) { + balance = (balance_[node] += balance); + + if (balance == -2) { + if (balance_[child_[node].right] <= 0) { + node = rotate_left(node); + if (balance_[node] == 1) { + return; + } + } + else { + node = rotate_right_left(node); + } + } + else if (balance == 2) { + if (balance_[child_[node].left] >= 0) { + node = rotate_right(node); + if (balance_[node] == -1) { + return; + } + } + else { + node = rotate_left_right(node); + } + } + else if (balance != 0) { + return; + } + + if (node != INVALID_IDX) { + const size_type parent = get_parent(node); + if (parent != INVALID_IDX) { + balance = child_[parent].left == node ? -1 : 1; + } + node = parent; + } + } + } + + + size_type rotate_left(size_type node) + { + const size_type right = child_[node].right; + const size_type right_left = child_[right].left; + const size_type parent = get_parent(node); + + set_parent(right, parent); + set_parent(node, right); + set_parent(right_left, node); + child_[right].left = node; + child_[node].right = right_left; + + if (node == root_) { + root_ = right; + } + else if (child_[parent].right == node) { + child_[parent].right = right; + } + else { + child_[parent].left = right; + } + + balance_[right]++; + balance_[node] = -balance_[right]; + + return right; + } + + + size_type rotate_right(size_type node) + { + const size_type left = child_[node].left; + const size_type left_right = child_[left].right; + const size_type parent = get_parent(node); + + set_parent(left, parent); + set_parent(node, left); + set_parent(left_right, node); + child_[left].right = node; + child_[node].left = left_right; + + if (node == root_) { + root_ = left; + } + else if (child_[parent].left == node) { + child_[parent].left = left; + } + else { + child_[parent].right = left; + } + + balance_[left]--; + balance_[node] = -balance_[left]; + + return left; + } + + + size_type rotate_left_right(size_type node) + { + const size_type left = child_[node].left; + const size_type left_right = child_[left].right; + const size_type left_right_right = child_[left_right].right; + const size_type left_right_left = child_[left_right].left; + const size_type parent = get_parent(node); + + set_parent(left_right, parent); + set_parent(left, left_right); + set_parent(node, left_right); + set_parent(left_right_right, node); + set_parent(left_right_left, left); + child_[node].left = left_right_right; + child_[left].right = left_right_left; + child_[left_right].left = left; + child_[left_right].right = node; + + if (node == root_) { + root_ = left_right; + } + else if (child_[parent].left == node) { + child_[parent].left = left_right; + } + else { + child_[parent].right = left_right; + } + + if (balance_[left_right] == 0) { + balance_[node] = 0; + balance_[left] = 0; + } + else if (balance_[left_right] == -1) { + balance_[node] = 0; + balance_[left] = 1; + } + else { + balance_[node] = -1; + balance_[left] = 0; + } + balance_[left_right] = 0; + + return left_right; + } + + + size_type rotate_right_left(size_type node) + { + const size_type right = child_[node].right; + const size_type right_left = child_[right].left; + const size_type right_left_left = child_[right_left].left; + const size_type right_left_right = child_[right_left].right; + const size_type parent = get_parent(node); + + set_parent(right_left, parent); + set_parent(right, right_left); + set_parent(node, right_left); + set_parent(right_left_left, node); + set_parent(right_left_right, right); + child_[node].right = right_left_left; + child_[right].left = right_left_right; + child_[right_left].right = right; + child_[right_left].left = node; + + if (node == root_) { + root_ = right_left; + } + else if (child_[parent].right == node) { + child_[parent].right = right_left; + } + else { + child_[parent].left = right_left; + } + + if (balance_[right_left] == 0) { + balance_[node] = 0; + balance_[right] = 0; + } + else if (balance_[right_left] == 1) { + balance_[node] = 0; + balance_[right] = -1; + } + else { + balance_[node] = 1; + balance_[right] = 0; + } + balance_[right_left] = 0; + + return right_left; + } + }; +} #endif // _AVL_ARRAY_H_ diff --git a/benchmark.cpp b/benchmark.cpp new file mode 100644 index 0000000..37a44e7 --- /dev/null +++ b/benchmark.cpp @@ -0,0 +1,206 @@ +#include +#include "static_avl.hpp" +#include +#include +#include +#include +#include +#include + +std::string size2str(size_t s) +{ + if (s > 1024 * 1024 * 1024) { + return std::to_string(double(s) / (1024 * 1024 * 1024)) + "Gb"; + } + else if (s > 1024 * 1024) + { + return std::to_string(double(s) / (1024 * 1024)) + "Mb"; + } + else if (s > 1024) + { + return std::to_string(double(s) / (1024)) + "kb"; + } + return std::to_string(s) + "b"; +} + +template +void benchmark() +{ + using namespace std; + using namespace nicehero; + using namespace chrono; + { + vector arrs0; + vector arrs; + vector arrs2; + arrs0.resize(mapSize); + arrs.resize(mapSize); + arrs2.resize(mapSize); + for (int i = 0; i < mapSize; ++i) { + arrs0[i] = i + 1; + } + for (int i = 0; arrs0.size() > 0;++ i) { + int x = rand() % arrs0.size(); + arrs[i] = arrs0[x]; + arrs0[x] = arrs0.back(); + arrs0.pop_back(); + } + for (int i = 0; i < mapSize; ++i) { + arrs2[i] = rand() % mapSize; + if (rand() % 100 < missPercent) { + arrs2[i] = 0; + } + else { + arrs2[i] = arrs[arrs2[i]]; + } + } + + { + using AVL = static_avl; + using MAP = map; + cout << "mapSize:" << mapSize << " testCount:" << testCount<< " missPercent:" << missPercent << endl; + cout << "sizeof static_avl:" << size2str(sizeof(AVL)) << endl; + auto start = system_clock::now(); + for (int j = 0; j < testCount; ++j) { + auto avl = make_unique(); + for (int i = 0; i < mapSize; ++i) { + avl->emplace(arrs[i], arrs[i]); + } + } + auto end = system_clock::now(); + auto duration = double(duration_cast(end - start).count()) + * microseconds::period::num / microseconds::period::den; + cout << "avl insert " << mapSize << "x" << testCount << " cost" + << duration + << "s QPS:" << uint32_t(double(mapSize) / duration * double(testCount)) << endl; + + start = system_clock::now(); + for (int j = 0; j < testCount; ++j) { + MAP mm; + for (int i = 0; i < mapSize; ++i) { + mm.emplace(make_pair(arrs[i], arrs[i])); + } + } + end = system_clock::now(); + duration = double(duration_cast(end - start).count()) + * microseconds::period::num / microseconds::period::den; + cout << "std::map insert " << mapSize << "x" << testCount << " cost" + << duration + << "s QPS:" << uint32_t(double(mapSize) / duration * double(testCount)) << endl; + + { + auto avl = make_unique(); + for (int i = 0; i < mapSize; ++i) { + avl->emplace(arrs[i], arrs[i]); + } + MAP mm; + for (int i = 0; i < mapSize; ++i) { + mm.emplace(make_pair(arrs[i], arrs[i])); + } + cout << "totalNum avl:" << size_t(avl->size()) << " map:" << mm.size() << endl;; + int missNum = 0; + start = system_clock::now(); + for (int j = 0; j < testCount; ++j) { + missNum = 0; + for (int i = 0; i < mapSize; ++i) { + if (avl->find(arrs2[i]) == avl->end()) { + ++missNum; + } + } + } + end = system_clock::now(); + duration = double(duration_cast(end - start).count()) + * microseconds::period::num / microseconds::period::den; + cout << "static_avl find " << mapSize << "x" << testCount + <<" missNum:" << missNum << " cost:" + << duration + << "s QPS:" << uint32_t(double(mapSize) / duration * double(testCount)) << endl; + + start = system_clock::now(); + for (int j = 0; j < testCount; ++j) { + missNum = 0; + for (int i = 0; i < mapSize; ++i) { + if (mm.find(arrs2[i]) == mm.end()) { + ++missNum; + } + } + } + end = system_clock::now(); + duration = double(duration_cast(end - start).count()) + * microseconds::period::num / microseconds::period::den; + cout << "std::map find " << mapSize << "x" << testCount + << " missNum:" << missNum << " cost:" + << duration + << "s QPS:" << uint32_t(double(mapSize) / duration * double(testCount)) << endl; + + start = system_clock::now(); + for (int i = 0; i < testCount; ++i) { + for (int i = 0; i < mapSize; ++i) { + avl->erase(arrs[i]); + avl->emplace(arrs[i], arrs[i]); + } + } + end = system_clock::now(); + duration = double(duration_cast(end - start).count()) + * microseconds::period::num / microseconds::period::den; + cout << "static_avl erase&insert " << mapSize << "x" << testCount << " cost:" + << duration + << "s QPS:" << uint32_t(double(mapSize) / duration * double(testCount)) << endl; + + start = system_clock::now(); + for (int i = 0; i < testCount; ++i) { + for (int i = 0; i < mapSize; ++i) { + mm.erase(arrs[i]); + mm.emplace(arrs[i], arrs[i]); + } + } + end = system_clock::now(); + duration = double(duration_cast(end - start).count()) + * microseconds::period::num / microseconds::period::den; + cout << "std::map erase&insert " << mapSize << "x" << testCount << " cost:" + << duration + << "s QPS:" << uint32_t(double(mapSize) / duration * double(testCount)) << endl; + + start = system_clock::now(); + for (int i = 0; i < mapSize; ++i) { + avl->erase(arrs[i]); + } + end = system_clock::now(); + duration = double(duration_cast(end - start).count()) + * microseconds::period::num / microseconds::period::den; + cout << "static_avl erase " << mapSize << "cost:" + << duration + << "s QPS:" << uint32_t(double(mapSize) / duration * double(testCount)) << endl; + + start = system_clock::now(); + for (int i = 0; i < mapSize; ++i) { + mm.erase(arrs[i]); + } + end = system_clock::now(); + duration = double(duration_cast(end - start).count()) + * microseconds::period::num / microseconds::period::den; + cout << "std::map erase " << mapSize << "cost:" + << duration + << "s QPS:" << uint32_t(double(mapSize) / duration * double(testCount)) << endl; + } + } + } + cout << endl; +} + +int main() +{ + benchmark<128,10000,20>(); + benchmark<128,10000,10>(); + benchmark<128,10000,1>(); + benchmark<1024,1000,10>(); + benchmark<1024,1000,0>(); + benchmark<65535,50,10>(); + benchmark<65535,50,0>(); + benchmark<500000,5,10>(); + benchmark<500000,5,0>(); + benchmark<5000000,1,10>(); + benchmark<5000000,1,0>(); + benchmark<50000000,1,10>(); + benchmark<50000000,1,0>(); +} diff --git a/benchmark.py b/benchmark.py new file mode 100644 index 0000000..8ad3c2c --- /dev/null +++ b/benchmark.py @@ -0,0 +1,47 @@ +import numpy as np +import pandas as pd +import matplotlib.pyplot as plt +import seaborn as sns +opts = ["insert","find","erase&insert","erase"] +#opts = ["erase"] +fp = open("result.txt","r") +ll = fp.readlines() +fp.close() +for opt in opts: + y = [] + y1 = [] + startFind = False + for l in ll: + arr = l.split("missPercent:") + if len(arr) > 1 and int(arr[1]) == 10: + startFind = True + continue + elif len(arr) > 1 and int(arr[1]) != 10: + startFind = False + continue + if startFind and l.find(" " + opt + " ") >= 0: + if l.find("avl") >= 0: + y.append(int(l.split("QPS:")[1])) + elif l.find("std::map") >= 0: + y1.append(int(l.split("QPS:")[1])) + #print(y) + #print(y1) + y = list(map(lambda x: x / 10000, y)) + y1 = list(map(lambda x: x / 10000, y1)) + x1 = [0,1,2,3,4,5,6] + x2 = ['128','1024','65535','500000','5000000','50000000','60000000'] + if opt == "erase": + y = y[2:] + y1 = y1[2:] + x1 = x1[:-2] + x2 = x2[2:] + plt.xticks(x1,x2) + y2 = [np.max(y),np.mean(y),np.median(y),np.min(y)] + plt.yticks(y2,list(map(lambda x: str(int(x)) + "w", y2))) + plt.plot(y, marker = 'o',label="static_avl") + plt.plot(y1, marker = 'o',label="std::map") + plt.title(opt) + plt.xlabel("Size") + plt.ylabel("QPS(w)") + plt.legend() + plt.show() \ No newline at end of file diff --git a/benchmark.txt b/benchmark.txt new file mode 100644 index 0000000..64aa487 --- /dev/null +++ b/benchmark.txt @@ -0,0 +1,6 @@ +#need gcc 11 +#need python3 +g++ -O1 benchmark.cpp -o a.exe +a.exe > result.txt +pip3 install seaborn +python3 benchmark.py diff --git a/image/1.png b/image/1.png new file mode 100644 index 0000000000000000000000000000000000000000..bb03e42caafa993f22ea71ff0592de1a17aa642a GIT binary patch literal 27106 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zl5CbSRKS-_`#kG}%pHCo0x;5z6gc&yYiP)7fev7OF`xNEP5pYjfP3lP_;%i>ReLWB z5kRcYVMI?PRINb&DAZq!R{&3QN8l28JHZI+7N*au6J36QOLBuRgLr(#?U0Ydac^4;W+ zLGvvt@`~FtAa*{WS>uKq`E7UeK3v(FzTIDSnSCC!I1nGi4(rx&I5GoKt#)RKOG*7A>jcfox|7HWXa>D)<5m7ciNzkm|2Ner+cSGi%z0eeaexBhz=; z#oe6~cFyB4ngznf_8HY*S|CJY!^% zI3Q&12MJftQnV86(VowCs zYe@J!(O3Nd+X6er3rNRz#~V)YZcj8rp_?^x7JR%w9A{Zt4MTK3$-ik^Sua`~Kh2y~ zy_$$>3734t_`pp8FZ2t?|5JVTpNcz&CzYl@anjFrX6NVcgGc5VR~c$s7v%X8FDCQg zHG|hm)^5CXx+5Sh;yKbC!|>nMwfvw%rT7^5(?^k!)u2bC5w_;ULoTD1G&4-LRYd%g zy$ELU{sXIp`8Rf>bbkj(I4q;lr0n70QO6Uq0m!|$Ftd(VNN!5uM?N$bc=F(|FlB@gL1X=iu1P%B zLhl=E$8d>>30#am2HC*xxlxBJ@vt@ED;`B+h?bU?M90PS^O{=^7nxfMEtDI9#nR!f7kUntIKNC?_S zUYbJxB~(Km*0;FZg`BW?y=FhM#oiKavK<6rh^(!$IZa)Zv=Sy0=}D11yI|;gZ`kJm~8Lp zxD$5{BqSs-yt{BL-kRJQq;v?Ewh-ee(d}U#Eyg(sg{=gl;A@%K&crVw@1&h~eK(;^ zqwWKSlLp{tKeRk>9YHrX=1<0{_3w3w=yECZ>UL0|$#%AV@%R0EdMp@;_VjQ*k{yS% z+wR_7Gchp%1cclzg2aUB$ms +#include "static_avl.h" +using namespace nicehero; -// create a 2048 node tree with as key and value types and as size type in 'Fast' mode -avl_array avl; +// create a 2048 node tree with as key and value types in 'Fast' mode +static_avl avl; // insert -avl.insert(1, 1); // set value of key 1 to 1 -avl.insert(2, 2); // set value of key 2 to 2 -avl.insert(3, 3); // set value of key 3 to 3 +avl.emplace(1, 1); // set value of key 1 to 1 +avl.emplace(2, 2); // set value of key 2 to 2 +avl.emplace(3, 3); // set value of key 3 to 3 // update -avl.insert(2, 4); // update value of key 2 to 4 +avl.emplace(2, 4); // update value of key 2 to 4 // find -int val = *avl.find(2); // as iterator (returns 4) +int val = avl.find(2).key(); // as iterator (returns 4) bool res = avl.find(1, val); // as data type (returns 1) // using an iterator to access the values of the according keys in ascending key order // output is: 1 4 3 -for (auto it = avl.begin(); it != avl.end(); ++it) { - std::cout << *it << " "; +for (auto it:avl) { + std::cout << it.val() << " "; } // erase avl.erase(2); // erase key 2 + +struct S{ + int x; + const char* c; +}; +static_avl avl2; +avl2.emplace(1,1,"abc"); //emplace for struct ``` diff --git a/result.txt b/result.txt new file mode 100644 index 0000000..f545ebd --- /dev/null +++ b/result.txt @@ -0,0 +1,155 @@ +mapSize:128 testCount:10000 missPercent:20 +sizeof static_avl:1.511719kb +avl insert 128x10000 cost0.090005s QPS:14221432 +std::map insert 128x10000 cost0.262014s QPS:4885235 +totalNum avl:128 map:128 +static_avl find 128x10000 missNum:24 cost:0.040002s QPS:31998400 +std::map find 128x10000 missNum:24 cost:0.049002s QPS:26121382 +static_avl erase&insert 128x10000 cost:0.228013s QPS:5613715 +std::map erase&insert 128x10000 cost:0.257014s QPS:4980273 +static_avl erase 128cost:0s QPS:0 +std::map erase 128cost:0s QPS:0 + +mapSize:128 testCount:10000 missPercent:10 +sizeof static_avl:1.511719kb +avl insert 128x10000 cost0.070004s QPS:18284669 +std::map insert 128x10000 cost0.243013s QPS:5267207 +totalNum avl:128 map:128 +static_avl find 128x10000 missNum:15 cost:0.043002s QPS:29766057 +std::map find 128x10000 missNum:15 cost:0.040002s QPS:26998400 +static_avl erase&insert 128x10000 cost:0.199011s QPS:6431805 +std::map erase&insert 128x10000 cost:0.271015s QPS:4722985 +static_avl erase 128cost:0s QPS:0 +std::map erase 128cost:0s QPS:0 + +mapSize:128 testCount:10000 missPercent:1 +sizeof static_avl:1.511719kb +avl insert 128x10000 cost0.062003s QPS:20644162 +std::map insert 128x10000 cost0.268015s QPS:4775852 +totalNum avl:128 map:128 +static_avl find 128x10000 missNum:3 cost:0.042002s QPS:30474739 +std::map find 128x10000 missNum:3 cost:0.067003s QPS:19103622 +static_avl erase&insert 128x10000 cost:0.254014s QPS:5039092 +std::map erase&insert 128x10000 cost:0.328018s QPS:3902224 +static_avl erase 128cost:0s QPS:0 +std::map erase 128cost:0s QPS:0 + +mapSize:1024 testCount:1000 missPercent:10 +sizeof static_avl:15.011719kb +avl insert 1024x1000 cost0.087004s QPS:11769573 +std::map insert 1024x1000 cost0.196011s QPS:5224196 +totalNum avl:1024 map:1024 +static_avl find 1024x1000 missNum:105 cost:0.075004s QPS:13652605 +std::map find 1024x1000 missNum:105 cost:0.114006s QPS:8981983 +static_avl erase&insert 1024x1000 cost:0.234013s QPS:4375825 +std::map erase&insert 1024x1000 cost:0.271015s QPS:3778388 +static_avl erase 1024cost:0s QPS:0 +std::map erase 1024cost:0s QPS:0 + +mapSize:1024 testCount:1000 missPercent:0 +sizeof static_avl:15.011719kb +avl insert 1024x1000 cost0.098005s QPS:10448446 +std::map insert 1024x1000 cost0.203011s QPS:5044061 +totalNum avl:1024 map:1024 +static_avl find 1024x1000 missNum:0 cost:0.068003s QPS:15058159 +std::map find 1024x1000 missNum:0 cost:0.074004s QPS:13837089 +static_avl erase&insert 1024x1000 cost:0.257014s QPS:3984218 +std::map erase&insert 1024x1000 cost:0.286016s QPS:3580219 +static_avl erase 1024cost:0s QPS:0 +std::map erase 1024cost:0s QPS:0 + +mapSize:65535 testCount:50 missPercent:10 +sizeof static_avl:1.312496Mb +avl insert 65535x50 cost0.770044s QPS:4255276 +std::map insert 65535x50 cost1.49909s QPS:2185833 +totalNum avl:65535 map:65535 +static_avl find 65535x50 missNum:6572 cost:0.471026s QPS:6956622 +std::map find 65535x50 missNum:6572 cost:0.837047s QPS:3914654 +static_avl erase&insert 65535x50 cost:1.57109s QPS:2085655 +std::map erase&insert 65535x50 cost:2.08912s QPS:1568484 +static_avl erase 65535cost:0.016s QPS:204796875 +std::map erase 65535cost:0.022001s QPS:148936411 + +mapSize:65535 testCount:50 missPercent:0 +sizeof static_avl:1.312496Mb +avl insert 65535x50 cost0.778044s QPS:4211522 +std::map insert 65535x50 cost1.49308s QPS:2194617 +totalNum avl:65535 map:65535 +static_avl find 65535x50 missNum:0 cost:0.498028s QPS:6579449 +std::map find 65535x50 missNum:0 cost:0.88605s QPS:3698154 +static_avl erase&insert 65535x50 cost:1.55609s QPS:2105760 +std::map erase&insert 65535x50 cost:2.09012s QPS:1567733 +static_avl erase 65535cost:0.016s QPS:204796875 +std::map erase 65535cost:0.024001s QPS:136525561 + +mapSize:500000 testCount:5 missPercent:10 +sizeof static_avl:10.013596Mb +avl insert 500000x5 cost0.830047s QPS:3011877 +std::map insert 500000x5 cost1.54309s QPS:1620127 +totalNum avl:500000 map:500000 +static_avl find 500000x5 missNum:50157 cost:0.400022s QPS:6249656 +std::map find 500000x5 missNum:50157 cost:0.697039s QPS:3586599 +static_avl erase&insert 500000x5 cost:1.8321s QPS:1364551 +std::map erase&insert 500000x5 cost:2.06412s QPS:1211171 +static_avl erase 500000cost:0.163009s QPS:15336576 +std::map erase 500000cost:0.219012s QPS:11414899 + +mapSize:500000 testCount:5 missPercent:0 +sizeof static_avl:10.013596Mb +avl insert 500000x5 cost0.849048s QPS:2944474 +std::map insert 500000x5 cost1.54409s QPS:1619078 +totalNum avl:500000 map:500000 +static_avl find 500000x5 missNum:0 cost:0.442025s QPS:5655788 +std::map find 500000x5 missNum:0 cost:0.749042s QPS:3337596 +static_avl erase&insert 500000x5 cost:1.8121s QPS:1379612 +std::map erase&insert 500000x5 cost:2.06212s QPS:1212346 +static_avl erase 500000cost:0.164009s QPS:15243065 +std::map erase 500000cost:0.219012s QPS:11414899 + +mapSize:5000000 testCount:1 missPercent:10 +sizeof static_avl:100.135818Mb +avl insert 5000000x1 cost1.8341s QPS:2726126 +std::map insert 5000000x1 cost3.25219s QPS:1537427 +totalNum avl:5000000 map:5000000 +static_avl find 5000000x1 missNum:500025 cost:0.944054s QPS:5296307 +std::map find 5000000x1 missNum:500025 cost:1.53409s QPS:3259267 +static_avl erase&insert 5000000x1 cost:4.28625s QPS:1166522 +std::map erase&insert 5000000x1 cost:4.41125s QPS:1133465 +static_avl erase 5000000cost:1.7491s QPS:2858613 +std::map erase 5000000cost:2.23913s QPS:2233012 + +mapSize:5000000 testCount:1 missPercent:0 +sizeof static_avl:100.135818Mb +avl insert 5000000x1 cost1.7721s QPS:2821509 +std::map insert 5000000x1 cost3.11318s QPS:1606075 +totalNum avl:5000000 map:5000000 +static_avl find 5000000x1 missNum:0 cost:0.964055s QPS:5186426 +std::map find 5000000x1 missNum:0 cost:1.62109s QPS:3084340 +static_avl erase&insert 5000000x1 cost:4.26924s QPS:1171167 +std::map erase&insert 5000000x1 cost:4.40025s QPS:1136298 +static_avl erase 5000000cost:1.7661s QPS:2831095 +std::map erase 5000000cost:2.23513s QPS:2237009 + +mapSize:50000000 testCount:1 missPercent:10 +sizeof static_avl:1001.358047Mb +avl insert 50000000x1 cost18.7161s QPS:2671501 +std::map insert 50000000x1 cost34.344s QPS:1455859 +totalNum avl:50000000 map:50000000 +static_avl find 50000000x1 missNum:5003108 cost:10.7656s QPS:4644416 +std::map find 50000000x1 missNum:5003108 cost:16.5169s QPS:3027194 +static_avl erase&insert 50000000x1 cost:48.1168s QPS:1039139 +std::map erase&insert 50000000x1 cost:45.4906s QPS:1099128 +static_avl erase 50000000cost:18.373s QPS:2721377 +std::map erase 50000000cost:23.3273s QPS:2143408 + +mapSize:50000000 testCount:1 missPercent:0 +sizeof static_avl:1001.358047Mb +avl insert 50000000x1 cost19.4111s QPS:2575844 +std::map insert 50000000x1 cost32.9049s QPS:1519531 +totalNum avl:50000000 map:50000000 +static_avl find 50000000x1 missNum:0 cost:11.3736s QPS:4396126 +std::map find 50000000x1 missNum:0 cost:17.971s QPS:2782256 +static_avl erase&insert 50000000x1 cost:47.9197s QPS:1043411 +std::map erase&insert 50000000x1 cost:44.3175s QPS:1128221 +static_avl erase 50000000cost:18.3711s QPS:2721673 +std::map erase 50000000cost:22.9973s QPS:2174166 diff --git a/static_avl.hpp b/static_avl.hpp new file mode 100644 index 0000000..d474750 --- /dev/null +++ b/static_avl.hpp @@ -0,0 +1,1249 @@ +/////////////////////////////////////////////////////////////////////////////// +// nicehero forked version +// \author (c) Marco Paland (info@paland.com) +// 2017-2020, paland consult, Hannover, Germany +// +// \license The MIT License (MIT) +// +// Permission is hereby granted, free of charge, to any person obtaining a copy +// of this software and associated documentation files (the "Software"), to deal +// in the Software without restriction, including without limitation the rights +// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +// copies of the Software, and to permit persons to whom the Software is +// furnished to do so, subject to the following conditions: +// +// The above copyright notice and this permission notice shall be included in +// all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +// THE SOFTWARE. +// +// \brief avl_array class +// This is an AVL tree implementation using an array as data structure. +// avl_array combines the insert/delete and find advantages (log n) of an AVL tree +// with a static allocated arrays and minimal storage overhead. +// If memory is critical the 'Fast' template parameter can be set to false which +// removes the parent member of every node. This saves sizeof(size_type) * Size bytes, +// but slowes down the insert and delete operation by factor 10 due to 'parent search'. +// The find opeartion is not affected cause finding doesn't need a parent. +// +// usage: +// #include "static_avl.h" +// avl_array avl; +// avl.insert(1, 1); +// +/////////////////////////////////////////////////////////////////////////////// + +#ifndef _NICEHERO_STATIC_AVL_H_ +#define _NICEHERO_STATIC_AVL_H_ + +#include +#include "static_vector.hpp" +#include + +namespace nicehero { + + /** + * \param Key The key type. The type (class) must provide a 'less than' and 'equal to' operator + * \param T The Data type + * \param size_type Container size type + * \param Size Container size + * \param Fast If true every node stores an extra parent index. This increases memory but speed up insert/erase by factor 10 + */ + template + class static_avl + { + template + using smallest_size_t + = conditional_t<(N < numeric_limits::max()), uint8_t, + conditional_t<(N < numeric_limits::max()), uint16_t, + conditional_t<(N < numeric_limits::max()), uint32_t, + conditional_t<(N < numeric_limits::max()), uint64_t, + size_t>>>>; + using size_type = smallest_size_t; + // child index pointer class + typedef struct tag_child_type { + size_type left; + size_type right; + } child_type; + + + // node storage, due to possible structure packing effects, single arrays are used instead of a 'node' structure + static_vector key_; // node key + static_vector val_; // node value + std::int8_t balance_[Size]; // subtree balance + child_type child_[Size]; // node childs + size_type size_; // actual size + size_type root_; // root node + size_type parent_[Fast ? Size : 1]; // node parent, use one element if not needed (zero sized array is not allowed) + + // invalid index (like 'nullptr' in a pointer implementation) + static const size_type INVALID_IDX = Size; + + // iterator class + typedef class tag_static_avl_iterator + { + static_avl* instance_; // array instance + size_type idx_; // actual node + + friend static_avl; // static_avl may access index pointer + + public: + // ctor + tag_static_avl_iterator(static_avl* instance = nullptr, size_type idx = 0U) + : instance_(instance) + , idx_(idx) + { } + + inline tag_static_avl_iterator& operator=(const tag_static_avl_iterator& other) + { + instance_ = other.instance_; + idx_ = other.idx_; + return *this; + } + + inline bool operator==(const tag_static_avl_iterator& rhs) const + { + return idx_ == rhs.idx_; + } + + inline bool operator!=(const tag_static_avl_iterator& rhs) const + { + return !(*this == rhs); + } + // dereference - access value + inline auto& operator*() const + { + return *this; + } + + // access value + inline T& val() const + { + auto& k = instance_->key_[idx_]; + auto& v = instance_->val_[idx_]; + return v; + } + + // access key + inline const Key& key() const + { + return instance_->key_[idx_]; + } + + // preincrement + tag_static_avl_iterator& operator++() + { + // end reached? + if (idx_ >= Size) { + return *this; + } + // take left most child of right child, if not existent, take parent + size_type i = instance_->child_[idx_].right; + if (i != instance_->INVALID_IDX) { + // successor is the furthest left node of right subtree + for (; i != instance_->INVALID_IDX; i = instance_->child_[i].left) { + idx_ = i; + } + } + else { + // have already processed the left subtree, and + // there is no right subtree. move up the tree, + // looking for a parent for which nodePtr is a left child, + // stopping if the parent becomes NULL. a non-NULL parent + // is the successor. if parent is NULL, the original node + // was the last node inorder, and its successor + // is the end of the list + i = instance_->get_parent(idx_); + while ((i != instance_->INVALID_IDX) && (idx_ == instance_->child_[i].right)) { + idx_ = i; + i = instance_->get_parent(idx_); + } + idx_ = i; + } + return *this; + } + + // postincrement + inline tag_static_avl_iterator operator++(int) + { + auto idx2 = idx_; + ++(*this); + return tag_static_avl_iterator(instance_,idx2); + } + } static_avl_iterator; + + + typedef class tag_static_avl_citerator + { + const static_avl* instance_; // array instance + size_type idx_; // actual node + + friend static_avl; // static_avl may access index pointer + + public: + // ctor + tag_static_avl_citerator(const static_avl* instance = nullptr, size_type idx = 0U) + : instance_(instance) + , idx_(idx) + { } + + inline tag_static_avl_citerator& operator=(const tag_static_avl_citerator& other) + { + instance_ = other.instance_; + idx_ = other.idx_; + return *this; + } + + inline bool operator==(const tag_static_avl_citerator& rhs) const + { + return idx_ == rhs.idx_; + } + + inline bool operator!=(const tag_static_avl_citerator& rhs) const + { + return !(*this == rhs); + } + // dereference - access value + inline auto& operator*() const + { + return *this; + } + + // access value + inline const T& val() const + { + auto& k = instance_->key_[idx_]; + auto& v = instance_->val_[idx_]; + return v; + } + + // access key + inline const Key& key() const + { + return instance_->key_[idx_]; + } + + // preincrement + tag_static_avl_citerator& operator++() + { + // end reached? + if (idx_ >= Size) { + return *this; + } + // take left most child of right child, if not existent, take parent + size_type i = instance_->child_[idx_].right; + if (i != instance_->INVALID_IDX) { + // successor is the furthest left node of right subtree + for (; i != instance_->INVALID_IDX; i = instance_->child_[i].left) { + idx_ = i; + } + } + else { + // have already processed the left subtree, and + // there is no right subtree. move up the tree, + // looking for a parent for which nodePtr is a left child, + // stopping if the parent becomes NULL. a non-NULL parent + // is the successor. if parent is NULL, the original node + // was the last node inorder, and its successor + // is the end of the list + i = instance_->get_parent(idx_); + while ((i != instance_->INVALID_IDX) && (idx_ == instance_->child_[i].right)) { + idx_ = i; + i = instance_->get_parent(idx_); + } + idx_ = i; + } + return *this; + } + + // postincrement + inline tag_static_avl_citerator operator++(int) + { + auto idx2 = idx_; + ++(*this); + return tag_static_avl_citerator(instance_, idx2); + } + } static_avl_citerator; + + + // reverse_iterator class + typedef class tag_static_avl_riterator + { + static_avl* instance_; // array instance + size_type idx_; // actual node + + friend static_avl; // static_avl may access index pointer + + public: + // ctor + tag_static_avl_riterator(static_avl* instance = nullptr, size_type idx = 0U) + : instance_(instance) + , idx_(idx) + { } + + inline tag_static_avl_riterator& operator=(const tag_static_avl_riterator& other) + { + instance_ = other.instance_; + idx_ = other.idx_; + return *this; + } + + inline bool operator==(const tag_static_avl_riterator& rhs) const + { + return idx_ == rhs.idx_; + } + + inline bool operator!=(const tag_static_avl_riterator& rhs) const + { + return !(*this == rhs); + } + + // dereference - access value + inline auto& operator*() const + { + return *this; + } + + // access value + inline T& val() const + { + auto& k = instance_->key_[idx_]; + auto& v = instance_->val_[idx_]; + return v; + } + + // access key + inline const Key& key() const + { + return instance_->key_[idx_]; + } + + // preincrement + tag_static_avl_riterator& operator++() + { + // end reached? + if (idx_ >= Size) { + return *this; + } + // take left most child of right child, if not existent, take parent + size_type i = instance_->child_[idx_].left; + if (i != instance_->INVALID_IDX) { + // successor is the furthest left node of right subtree + for (; i != instance_->INVALID_IDX; i = instance_->child_[i].right) { + idx_ = i; + } + } + else { + // have already processed the left subtree, and + // there is no right subtree. move up the tree, + // looking for a parent for which nodePtr is a left child, + // stopping if the parent becomes NULL. a non-NULL parent + // is the successor. if parent is NULL, the original node + // was the last node inorder, and its successor + // is the end of the list + i = instance_->get_parent(idx_); + while ((i != instance_->INVALID_IDX) && (idx_ == instance_->child_[i].left)) { + idx_ = i; + i = instance_->get_parent(idx_); + } + idx_ = i; + } + return *this; + } + + // postincrement + inline tag_static_avl_iterator operator++(int) + { + auto idx2 = idx_; + ++(*this); + return tag_static_avl_iterator(instance_,idx2); + } + } static_avl_riterator; + + typedef class tag_static_avl_criterator + { + const static_avl* instance_; // array instance + size_type idx_; // actual node + + friend static_avl; // static_avl may access index pointer + + public: + // ctor + tag_static_avl_criterator(const static_avl* instance = nullptr, size_type idx = 0U) + : instance_(instance) + , idx_(idx) + { } + + inline tag_static_avl_criterator& operator=(const tag_static_avl_criterator& other) + { + instance_ = other.instance_; + idx_ = other.idx_; + return *this; + } + + inline bool operator==(const tag_static_avl_criterator& rhs) const + { + return idx_ == rhs.idx_; + } + + inline bool operator!=(const tag_static_avl_criterator& rhs) const + { + return !(*this == rhs); + } + + // dereference - access value + inline auto& operator*() const + { + return *this; + } + + // access value + inline const T& val() const + { + auto& k = instance_->key_[idx_]; + auto& v = instance_->val_[idx_]; + return v; + } + + // access key + inline const Key& key() const + { + return instance_->key_[idx_]; + } + + // preincrement + tag_static_avl_criterator& operator++() + { + // end reached? + if (idx_ >= Size) { + return *this; + } + // take left most child of right child, if not existent, take parent + size_type i = instance_->child_[idx_].left; + if (i != instance_->INVALID_IDX) { + // successor is the furthest left node of right subtree + for (; i != instance_->INVALID_IDX; i = instance_->child_[i].right) { + idx_ = i; + } + } + else { + // have already processed the left subtree, and + // there is no right subtree. move up the tree, + // looking for a parent for which nodePtr is a left child, + // stopping if the parent becomes NULL. a non-NULL parent + // is the successor. if parent is NULL, the original node + // was the last node inorder, and its successor + // is the end of the list + i = instance_->get_parent(idx_); + while ((i != instance_->INVALID_IDX) && (idx_ == instance_->child_[i].left)) { + idx_ = i; + i = instance_->get_parent(idx_); + } + idx_ = i; + } + return *this; + } + + // postincrement + inline tag_static_avl_criterator operator++(int) + { + auto idx2 = idx_; + ++(*this); + return tag_static_avl_criterator(instance_, idx2); + } + } static_avl_criterator; + + public: + + typedef T value_type; + typedef T* pointer; + typedef const T* const_pointer; + typedef T& reference; + typedef const T& const_reference; + typedef Key key_type; + typedef static_avl_iterator iterator; + typedef static_avl_riterator reverse_iterator; + using const_iterator = static_avl_citerator; + using const_reverse_iterator = static_avl_criterator; + + + // ctor + static_avl() + : size_(0U) + , root_(Size) + { } + + + // iterators + inline iterator begin() + { + size_type i = INVALID_IDX; + if (root_ != INVALID_IDX) { + // find smallest element, it's the farthest node left from root + for (i = root_; child_[i].left != INVALID_IDX; i = child_[i].left); + } + return iterator(this, i); + } + + inline const_iterator begin() const + { + size_type i = INVALID_IDX; + if (root_ != INVALID_IDX) { + // find smallest element, it's the farthest node left from root + for (i = root_; child_[i].left != INVALID_IDX; i = child_[i].left); + } + return const_iterator(this, i); + } + + inline iterator end() + { + return iterator(this, INVALID_IDX); + } + + inline const_iterator end() const + { + return const_iterator(this, INVALID_IDX); + } + + inline reverse_iterator rbegin() + { + size_type i = INVALID_IDX; + if (root_ != INVALID_IDX) { + // find smallest element, it's the farthest node left from root + for (i = root_; child_[i].right != INVALID_IDX; i = child_[i].right); + } + return reverse_iterator(this, i); + } + + inline reverse_iterator rend() + { + return reverse_iterator(this, INVALID_IDX); + } + + inline const_reverse_iterator rbegin() const + { + size_type i = INVALID_IDX; + if (root_ != INVALID_IDX) { + // find smallest element, it's the farthest node left from root + for (i = root_; child_[i].right != INVALID_IDX; i = child_[i].right); + } + return const_reverse_iterator(this, i); + } + + inline const_reverse_iterator rend() const + { + return const_reverse_iterator(this, INVALID_IDX); + } + + + // capacity + inline size_type size() const + { + return size_; + } + + inline bool empty() const + { + return size_ == static_cast(0); + } + + inline size_type max_size() const + { + return Size; + } + + + /** + * Clear the container + */ + inline void clear() + { + size_ = 0U; + root_ = INVALID_IDX; + } + + + /** + * Insert or update an element + * \param key The key to insert. If the key already exists, it is updated + * \param val Value to insert or update + * \return True if the key was successfully inserted or updated, false if container is full + */ + bool insert(const key_type& key, const value_type& val) + { + if (root_ == INVALID_IDX) { + if (size_ >= key_.size()) { + key_.push_back(key); + val_.push_back(val); + } + else { + key_[size_] = key; + val_[size_] = val; + } + balance_[size_] = 0; + child_[size_] = { INVALID_IDX, INVALID_IDX }; + set_parent(size_, INVALID_IDX); + root_ = size_++; + return true; + } + + for (size_type i = root_; i != INVALID_IDX; i = (key < key_[i]) ? child_[i].left : child_[i].right) { + if (key < key_[i]) { + if (child_[i].left == INVALID_IDX) { + if (size_ >= max_size()) { + // container is full + return false; + } + if (size_ >= key_.size()) { + key_.push_back(key); + val_.push_back(val); + } + else { + key_[size_] = key; + val_[size_] = val; + } + balance_[size_] = 0; + child_[size_] = { INVALID_IDX, INVALID_IDX }; + set_parent(size_, i); + child_[i].left = size_++; + insert_balance(i, 1); + return true; + } + } + else if (key_[i] == key) { + // found same key, update node + val_[i] = val; + return true; + } + else { + if (child_[i].right == INVALID_IDX) { + if (size_ >= max_size()) { + // container is full + return false; + } + if (size_ >= key_.size()) { + key_.push_back(key); + val_.push_back(val); + } + else { + key_[size_] = key; + val_[size_] = val; + } + balance_[size_] = 0; + child_[size_] = { INVALID_IDX, INVALID_IDX }; + set_parent(size_, i); + child_[i].right = size_++; + insert_balance(i, -1); + return true; + } + } + } + // node doesn't fit (should not happen) - discard it anyway + return false; + } + template + bool emplace(const key_type& key,Args&&... args) noexcept + { + if (root_ == INVALID_IDX) { + if (size_ >= key_.size()) { + key_.push_back(key); + val_.emplace_back(forward(args)...); + } + else { + key_[size_] = key; + val_.emplace(size_, forward(args)...); + } + balance_[size_] = 0; + child_[size_] = { INVALID_IDX, INVALID_IDX }; + set_parent(size_, INVALID_IDX); + root_ = size_++; + return true; + } + + for (size_type i = root_; i != INVALID_IDX; i = (key < key_[i]) ? child_[i].left : child_[i].right) { + if (key < key_[i]) { + if (child_[i].left == INVALID_IDX) { + if (size_ >= max_size()) { + // container is full + return false; + } + if (size_ >= key_.size()) { + key_.push_back(key); + val_.emplace_back(forward(args)...); + } + else { + key_[size_] = key; + val_.emplace(size_, forward(args)...); + } + balance_[size_] = 0; + child_[size_] = { INVALID_IDX, INVALID_IDX }; + set_parent(size_, i); + child_[i].left = size_++; + insert_balance(i, 1); + return true; + } + } + else if (key_[i] == key) { + // found same key, update node + val_.emplace(i, forward(args)...); + return true; + } + else { + if (child_[i].right == INVALID_IDX) { + if (size_ >= max_size()) { + // container is full + return false; + } + if (size_ >= key_.size()) { + key_.push_back(key); + val_.emplace_back(forward(args)...); + } + else { + key_[size_] = key; + val_.emplace(size_, forward(args)...); + } + balance_[size_] = 0; + child_[size_] = { INVALID_IDX, INVALID_IDX }; + set_parent(size_, i); + child_[i].right = size_++; + insert_balance(i, -1); + return true; + } + } + } + // node doesn't fit (should not happen) - discard it anyway + return false; + } + + + /** + * Find an element + * \param key The key to find + * \param val If key is found, the value of the element is set + * \return True if key was found + */ + inline bool find(const key_type& key, value_type& val) const + { + for (size_type i = root_; i != INVALID_IDX;) { + if (key < key_[i]) { + i = child_[i].left; + } + else if (key == key_[i]) { + // found key + val = val_[i]; + return true; + } + else { + i = child_[i].right; + } + } + // key not found + return false; + } + + + /** + * Find an element and return an iterator as result + * \param key The key to find + * \return Iterator if key was found, else end() is returned + */ + inline iterator find(const key_type& key) + { + for (size_type i = root_; i != INVALID_IDX;) { + if (key < key_[i]) { + i = child_[i].left; + } + else if (key == key_[i]) { + // found key + return iterator(this, i); + } + else { + i = child_[i].right; + } + } + // key not found, return end() iterator + return end(); + } + + + /** + * Count elements with a specific key + * Searches the container for elements with a key equivalent to key and returns the number of matches. + * Because all elements are unique, the function can only return 1 (if the element is found) or zero (otherwise). + * \param key The key to find/count + * \return 0 if key was not found, 1 if key was found + */ + inline size_type count(const key_type& key) + { + return find(key) != end() ? 1U : 0U; + } + + + /** + * Remove element by key + * \param key The key of the element to remove + * \return True if the element ws removed, false if key was not found + */ + inline bool erase(const key_type& key) + { + return erase(find(key)); + } + + + /** + * Remove element by iterator position + * THIS ERASE OPERATION INVALIDATES ALL ITERATORS! + * \param position The iterator position of the element to remove + * \return True if the element was successfully removed, false if error + */ + bool erase(iterator position) + { + if (empty() || (position == end())) { + return false; + } + + const size_type node = position.idx_; + const size_type left = child_[node].left; + const size_type right = child_[node].right; + + if (left == INVALID_IDX) { + if (right == INVALID_IDX) { + const size_type parent = get_parent(node); + if (parent != INVALID_IDX) { + if (child_[parent].left == node) { + child_[parent].left = INVALID_IDX; + delete_balance(parent, -1); + } + else { + child_[parent].right = INVALID_IDX; + delete_balance(parent, 1); + } + } + else { + root_ = INVALID_IDX; + } + } + else { + const size_type parent = get_parent(node); + if (parent != INVALID_IDX) { + child_[parent].left == node ? child_[parent].left = right : child_[parent].right = right; + } + else { + root_ = right; + } + set_parent(right, parent); + delete_balance(right, 0); + } + } + else if (right == INVALID_IDX) { + const size_type parent = get_parent(node); + if (parent != INVALID_IDX) { + child_[parent].left == node ? child_[parent].left = left : child_[parent].right = left; + } + else { + root_ = left; + } + set_parent(left, parent); + delete_balance(left, 0); + } + else { + size_type successor = right; + if (child_[successor].left == INVALID_IDX) { + const size_type parent = get_parent(node); + child_[successor].left = left; + balance_[successor] = balance_[node]; + set_parent(successor, parent); + set_parent(left, successor); + + if (node == root_) { + root_ = successor; + } + else { + if (child_[parent].left == node) { + child_[parent].left = successor; + } + else { + child_[parent].right = successor; + } + } + delete_balance(successor, 1); + } + else { + while (child_[successor].left != INVALID_IDX) { + successor = child_[successor].left; + } + + const size_type parent = get_parent(node); + const size_type successor_parent = get_parent(successor); + const size_type successor_right = child_[successor].right; + + if (child_[successor_parent].left == successor) { + child_[successor_parent].left = successor_right; + } + else { + child_[successor_parent].right = successor_right; + } + + set_parent(successor_right, successor_parent); + set_parent(successor, parent); + set_parent(right, successor); + set_parent(left, successor); + child_[successor].left = left; + child_[successor].right = right; + balance_[successor] = balance_[node]; + + if (node == root_) { + root_ = successor; + } + else { + if (child_[parent].left == node) { + child_[parent].left = successor; + } + else { + child_[parent].right = successor; + } + } + delete_balance(successor_parent, -1); + } + } + size_--; + + // relocate the node at the end to the deleted node, if it's not the deleted one + if (node != size_) { + size_type parent = INVALID_IDX; + if (root_ == size_) { + root_ = node; + } + else { + parent = get_parent(size_); + child_[parent].left == size_ ? child_[parent].left = node : child_[parent].right = node; + } + + // correct childs parent + set_parent(child_[size_].left, node); + set_parent(child_[size_].right, node); + + // move content + key_[node] = key_[size_]; + val_[node] = val_[size_]; + balance_[node] = balance_[size_]; + child_[node] = child_[size_]; + set_parent(node, parent); + } + + return true; + } + + + /** + * Integrity (self) check + * \return True if the tree intergity is correct, false if error (should not happen normally) + */ + bool check() const + { + // check root + if (empty() && (root_ != INVALID_IDX)) { + // invalid root + return false; + } + if (size() && root_ >= size()) { + // root out of bounds + return false; + } + + // check tree + for (size_type i = 0U; i < size(); ++i) + { + if ((child_[i].left != INVALID_IDX) && (!(key_[child_[i].left] < key_[i]) || (key_[child_[i].left] == key_[i]))) { + // wrong key order to the left + return false; + } + if ((child_[i].right != INVALID_IDX) && ((key_[child_[i].right] < key_[i]) || (key_[child_[i].right] == key_[i]))) { + // wrong key order to the right + return false; + } + const size_type parent = get_parent(i); + if ((i != root_) && (parent == INVALID_IDX)) { + // no parent + return false; + } + if ((i == root_) && (parent != INVALID_IDX)) { + // invalid root parent + return false; + } + } + // check passed + return true; + } + + + ///////////////////////////////////////////////////////////////////////////// + // Helper functions + private: + + // find parent element + inline size_type get_parent(size_type node) const + { + if (Fast) { + return parent_[node]; + } + else { + const Key key_node = key_[node]; + for (size_type i = root_; i != INVALID_IDX; i = (key_node < key_[i]) ? child_[i].left : child_[i].right) { + if ((child_[i].left == node) || (child_[i].right == node)) { + // found parent + return i; + } + } + // parent not found + return INVALID_IDX; + } + } + + + // set parent element (only in Fast version) + inline void set_parent(size_type node, size_type parent) + { + if (Fast) { + if (node != INVALID_IDX) { + parent_[node] = parent; + } + } + } + + + void insert_balance(size_type node, std::int8_t balance) + { + while (node != INVALID_IDX) { + balance = (balance_[node] += balance); + + if (balance == 0) { + return; + } + else if (balance == 2) { + if (balance_[child_[node].left] == 1) { + rotate_right(node); + } + else { + rotate_left_right(node); + } + return; + } + else if (balance == -2) { + if (balance_[child_[node].right] == -1) { + rotate_left(node); + } + else { + rotate_right_left(node); + } + return; + } + + const size_type parent = get_parent(node); + if (parent != INVALID_IDX) { + balance = child_[parent].left == node ? 1 : -1; + } + node = parent; + } + } + + + void delete_balance(size_type node, std::int8_t balance) + { + while (node != INVALID_IDX) { + balance = (balance_[node] += balance); + + if (balance == -2) { + if (balance_[child_[node].right] <= 0) { + node = rotate_left(node); + if (balance_[node] == 1) { + return; + } + } + else { + node = rotate_right_left(node); + } + } + else if (balance == 2) { + if (balance_[child_[node].left] >= 0) { + node = rotate_right(node); + if (balance_[node] == -1) { + return; + } + } + else { + node = rotate_left_right(node); + } + } + else if (balance != 0) { + return; + } + + if (node != INVALID_IDX) { + const size_type parent = get_parent(node); + if (parent != INVALID_IDX) { + balance = child_[parent].left == node ? -1 : 1; + } + node = parent; + } + } + } + + + size_type rotate_left(size_type node) + { + const size_type right = child_[node].right; + const size_type right_left = child_[right].left; + const size_type parent = get_parent(node); + + set_parent(right, parent); + set_parent(node, right); + set_parent(right_left, node); + child_[right].left = node; + child_[node].right = right_left; + + if (node == root_) { + root_ = right; + } + else if (child_[parent].right == node) { + child_[parent].right = right; + } + else { + child_[parent].left = right; + } + + balance_[right]++; + balance_[node] = -balance_[right]; + + return right; + } + + + size_type rotate_right(size_type node) + { + const size_type left = child_[node].left; + const size_type left_right = child_[left].right; + const size_type parent = get_parent(node); + + set_parent(left, parent); + set_parent(node, left); + set_parent(left_right, node); + child_[left].right = node; + child_[node].left = left_right; + + if (node == root_) { + root_ = left; + } + else if (child_[parent].left == node) { + child_[parent].left = left; + } + else { + child_[parent].right = left; + } + + balance_[left]--; + balance_[node] = -balance_[left]; + + return left; + } + + + size_type rotate_left_right(size_type node) + { + const size_type left = child_[node].left; + const size_type left_right = child_[left].right; + const size_type left_right_right = child_[left_right].right; + const size_type left_right_left = child_[left_right].left; + const size_type parent = get_parent(node); + + set_parent(left_right, parent); + set_parent(left, left_right); + set_parent(node, left_right); + set_parent(left_right_right, node); + set_parent(left_right_left, left); + child_[node].left = left_right_right; + child_[left].right = left_right_left; + child_[left_right].left = left; + child_[left_right].right = node; + + if (node == root_) { + root_ = left_right; + } + else if (child_[parent].left == node) { + child_[parent].left = left_right; + } + else { + child_[parent].right = left_right; + } + + if (balance_[left_right] == 0) { + balance_[node] = 0; + balance_[left] = 0; + } + else if (balance_[left_right] == -1) { + balance_[node] = 0; + balance_[left] = 1; + } + else { + balance_[node] = -1; + balance_[left] = 0; + } + balance_[left_right] = 0; + + return left_right; + } + + + size_type rotate_right_left(size_type node) + { + const size_type right = child_[node].right; + const size_type right_left = child_[right].left; + const size_type right_left_left = child_[right_left].left; + const size_type right_left_right = child_[right_left].right; + const size_type parent = get_parent(node); + + set_parent(right_left, parent); + set_parent(right, right_left); + set_parent(node, right_left); + set_parent(right_left_left, node); + set_parent(right_left_right, right); + child_[node].right = right_left_left; + child_[right].left = right_left_right; + child_[right_left].right = right; + child_[right_left].left = node; + + if (node == root_) { + root_ = right_left; + } + else if (child_[parent].right == node) { + child_[parent].right = right_left; + } + else { + child_[parent].left = right_left; + } + + if (balance_[right_left] == 0) { + balance_[node] = 0; + balance_[right] = 0; + } + else if (balance_[right_left] == 1) { + balance_[node] = 0; + balance_[right] = -1; + } + else { + balance_[node] = 1; + balance_[right] = 0; + } + balance_[right_left] = 0; + + return right_left; + } + }; +} +#endif // _NICEHERO_STATIC_AVL_H_ diff --git a/static_vector.hpp b/static_vector.hpp new file mode 100644 index 0000000..fe48932 --- /dev/null +++ b/static_vector.hpp @@ -0,0 +1,1480 @@ +#ifndef NICEHERO_STATIC_VECTOR +#define NICEHERO_STATIC_VECTOR +#ifdef max +#undef max +#endif +/// \file +/// nicehero forked version +/// Dynamically-resizable vector with fixed-capacity. +/// +/// Copyright Gonzalo Brito Gadeschi 2015-2017 +/// Copyright Eric Niebler 2013-2014 +/// Copyright Casey Carter 2016 +/// +/// This file is released under the Boost Software License: +// +// Boost Software License - Version 1.0 - August 17th, 2003 +// +// Permission is hereby granted, free of charge, to any person or organization +// obtaining a copy of the software and accompanying documentation covered by +// this license (the "Software") to use, reproduce, display, distribute, +// execute, and transmit the Software, and to prepare derivative works of the +// Software, and to permit third-parties to whom the Software is furnished to +// do so, all subject to the following: +// +// The copyright notices in the Software and this entire statement, including +// the above license grant, this restriction and the following disclaimer, +// must be included in all copies of the Software, in whole or in part, and +// all derivative works of the Software, unless such copies or derivative +// works are solely in the form of machine-executable object code generated by +// a source language processor. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT +// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE +// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE, +// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER +// DEALINGS IN THE SOFTWARE. +// +// Some of the code has been adapted from the range-v3 library: +// +// https://github.com/ericniebler/range-v3/ +// +// which is also under the Boost Software license. +// +// Some of the code has been adapted from libc++: +// +// and is annotated with "adapted from libc++" below, and is thus under the +// following license: +// +//===----------------------------------------------------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is dual licensed under the MIT and the University of Illinois Open +// Source Licenses. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +#include +#include // for size_t +#include // for fixed-width integer types +#include // for less and equal_to +#include // for reverse_iterator and iterator traits +#include // for numeric_limits +#include // for length_error +#include // for aligned_storage and all meta-functions +#include // for assertion diagnostics + +/// Unreachable code +#define FCV_UNREACHABLE __builtin_unreachable() + +/// Optimizer allowed to assume that EXPR evaluates to true +// #define FCV_ASSUME(EXPR) \ +// static_cast((EXPR) ? void(0) : __builtin_unreachable()) + +#define FCV_ASSUME(EXPR) +/// Assert pretty printer +#define FCV_ASSERT(...) \ + static_cast((__VA_ARGS__) \ + ? void(0) \ + : ::nicehero::fcv_detail::assert_failure( \ + static_cast(__FILE__), __LINE__, \ + "assertion failed: " #__VA_ARGS__)) + +/// Likely/unlikely branches +#define FCV_LIKELY(boolean_expr) __builtin_expect(!!(boolean_expr), 1) +#define FCV_UNLIKELY(boolean_expr) __builtin_expect(!!(boolean_expr), 0) + +/// Expect asserts the condition in debug builds and assumes the condition to be +/// true in release builds. +// #ifdef NDEBUG +// #else +// #define FCV_EXPECT(EXPR) FCV_ASSERT(EXPR) +// #endif +#define FCV_EXPECT(EXPR) FCV_ASSUME(EXPR) + +#define FCV_CONCEPT_PP_CAT_(X, Y) X##Y +#define FCV_CONCEPT_PP_CAT(X, Y) FCV_CONCEPT_PP_CAT_(X, Y) + +/// Requires-clause emulation with SFINAE (for templates) +#define FCV_REQUIRES_(...) \ + int FCV_CONCEPT_PP_CAT(_concept_requires_, __LINE__) \ + = 42, \ + typename ::std::enable_if \ + < (FCV_CONCEPT_PP_CAT(_concept_requires_, __LINE__) == 43) \ + || (__VA_ARGS__), \ + int > ::type = 0 /**/ + +/// Requires-clause emulation with SFINAE (for "non-templates") +#define FCV_REQUIRES(...) \ + template ::type \ + = 0> /**/ + +namespace nicehero +{ + using namespace std; + // Private utilites (each std lib should already have this) + namespace fcv_detail + { + /// \name Utilities + ///@{ + + template + [[noreturn]] void assert_failure(char const* file, int line, + char const* msg) { + fprintf(stderr, "%s(%d): %s\n", file, line, msg); + abort(); + } + + template + using bool_ = integral_constant; + + /// \name Concepts (poor-man emulation using type traits) + ///@{ + template + static constexpr bool Constructible + = is_constructible_v; + + template + static constexpr bool CopyConstructible + = is_copy_constructible_v; + + template + static constexpr bool MoveConstructible + = is_move_constructible_v; + + template + static constexpr bool Assignable = is_assignable_v; + + template + static constexpr bool Movable = is_object_v&& Assignable&& + MoveConstructible&& is_swappable_v; + + template + static constexpr bool Convertible = is_convertible_v; + + template + static constexpr bool Trivial = is_trivial_v; + + template + static constexpr bool Const = is_const_v; + + template + static constexpr bool Pointer = is_pointer_v; + ///@} // Concepts + + template + using range_iterator_t = decltype(begin(declval())); + + template + using iterator_reference_t = typename iterator_traits::reference; + + template + using iterator_category_t = + typename iterator_traits::iterator_category; + + template + struct Iterator_ : false_type + { + }; + + template + struct Iterator_>> + : bool_, Cat>> + { + }; + + /// \name Concepts (poor-man emulation using type traits) + ///@{ + template + static constexpr bool InputIterator + = Iterator_{}; + + template + static constexpr bool ForwardIterator + = Iterator_{}; + + template + static constexpr bool OutputIterator + = Iterator_{} || ForwardIterator; + + template + static constexpr bool BidirectionalIterator + = Iterator_{}; + + template + static constexpr bool RandomAccessIterator + = Iterator_{}; + + template + static constexpr bool RandomAccessRange + = RandomAccessIterator>; + ///@} // Concepts + + // clang-format off + + /// Smallest fixed-width unsigned integer type that can represent + /// values in the range [0, N]. + template + using smallest_size_t + = conditional_t<(N < numeric_limits::max()), uint8_t, + conditional_t<(N < numeric_limits::max()), uint16_t, + conditional_t<(N < numeric_limits::max()), uint32_t, + conditional_t<(N < numeric_limits::max()), uint64_t, + size_t>>>>; + // clang-format on + + /// Index a range doing bound checks in debug builds + template )> + constexpr decltype(auto) index(Rng&& rng, Index&& i) noexcept + { +// FCV_EXPECT(static_cast(i) < (end(rng) - begin(rng))); + return begin(forward(rng))[forward(i)]; + } + + /// \name Workarounds + ///@{ + + // WORKAROUND: std::rotate is not constexpr + template )> + constexpr void slow_rotate(ForwardIt first, ForwardIt n_first, + ForwardIt last) + { + ForwardIt next = n_first; + while (first != next) + { + swap(*(first++), *(next++)); + if (next == last) + { + next = n_first; + } + else if (first == n_first) + { + n_first = next; + } + } + } + + // WORKAROUND: std::move is not constexpr + template && OutputIterator)> + constexpr OutputIt move(InputIt b, InputIt e, OutputIt to) + { + for (; b != e; ++b, (void)++to) + { + *to = ::std::move(*b); + } + return to; + } + + // WORKAROUND: std::equal is not constexpr + template && + InputIterator)> + constexpr bool cmp(InputIterator1 first1, InputIterator1 last1, + InputIterator2 first2, InputIterator2 last2, + BinaryPredicate pred) + { + for (; first1 != last1 && first2 != last2; + ++first1, (void)++first2) + { + if (!pred(*first1, *first2)) + { + return false; + } + } + return first1 == last1 && first2 == last2; + } + + ///@} // Workarounds + + ///@} // Utilities + + /// Types implementing the `fixed_capactiy_vector`'s storage + namespace storage + { + /// Storage for zero elements. + template + struct zero_sized + { + using size_type = uint8_t; + using value_type = T; + using difference_type = ptrdiff_t; + using pointer = T*; + using const_pointer = T const*; + + /// Pointer to the data in the storage. + static constexpr pointer data() noexcept + { + return nullptr; + } + /// Number of elements currently stored. + static constexpr size_type size() noexcept + { + return 0; + } + /// Capacity of the storage. + static constexpr size_type capacity() noexcept + { + return 0; + } + /// Is the storage empty? + static constexpr bool empty() noexcept + { + return true; + } + /// Is the storage full? + static constexpr bool full() noexcept + { + return true; + } + + /// Constructs a new element at the end of the storage + /// in-place. + /// + /// Increases size of the storage by one. + /// Always fails for empty storage. + template )> + static constexpr void emplace_back(Args&&...) noexcept + { + FCV_EXPECT(false + && "tried to emplace_back on empty storage"); + } + template )> + static constexpr void emplace(size_t loc,Args&&...) noexcept + { + FCV_EXPECT(false + && "tried to emplace_back on empty storage"); + } + /// Removes the last element of the storage. + /// Always fails for empty storage. + static constexpr void pop_back() noexcept + { + FCV_EXPECT(false + && "tried to pop_back on empty storage"); + } + /// Changes the size of the storage without adding or + /// removing elements (unsafe). + /// + /// The size of an empty storage can only be changed to 0. + static constexpr void unsafe_set_size( + size_t new_size) noexcept + { + FCV_EXPECT( + new_size == 0 + && "tried to change size of empty storage to " + "non-zero value"); + } + + /// Destroys all elements of the storage in range [begin, + /// end) without changings its size (unsafe). + /// + /// Nothing to destroy since the storage is empty. + template )> + static constexpr void unsafe_destroy( + InputIt /* begin */, InputIt /* end */) noexcept + { + } + + /// Destroys all elements of the storage without changing + /// its size (unsafe). + /// + /// Nothing to destroy since the storage is empty. + static constexpr void unsafe_destroy_all() noexcept + { + } + + constexpr zero_sized() = default; + constexpr zero_sized(zero_sized const&) = default; + constexpr zero_sized& operator =(zero_sized const&) + = default; + constexpr zero_sized(zero_sized&&) = default; + constexpr zero_sized& operator=(zero_sized&&) = default; + ~zero_sized() = default; + + /// Constructs an empty storage from an initializer list of + /// zero elements. + template )> + constexpr zero_sized(initializer_list il) noexcept + { + FCV_EXPECT( + il.size() == 0 + && "tried to construct storage::empty from a " + "non-empty initializer list"); + } + }; + + /// Storage for trivial types. + template + struct trivial + { + static_assert(Trivial, + "storage::trivial requires Trivial"); + static_assert(Capacity != size_t{0}, + "Capacity must be greater " + "than zero (use " + "storage::zero_sized instead)"); + + using size_type = smallest_size_t; + using value_type = T; + using difference_type = ptrdiff_t; + using pointer = T*; + using const_pointer = T const*; + + private: + // If the value_type is const, make a const array of + // non-const elements: + using data_t = conditional_t< + !Const, array, + const array, Capacity>>; + alignas(alignof(T)) data_t data_; + + /// Number of elements allocated in the storage: + size_type size_ = 0; + + public: + /// Direct access to the underlying storage. + /// + /// Complexity: O(1) in time and space. + constexpr const_pointer data() const noexcept + { + return data_.data(); + } + + /// Direct access to the underlying storage. + /// + /// Complexity: O(1) in time and space. + constexpr pointer data() noexcept + { + return data_.data(); + } + + /// Number of elements in the storage. + /// + /// Complexity: O(1) in time and space. + constexpr size_type size() const noexcept + { + return size_; + } + + /// Maximum number of elements that can be allocated in the + /// storage. + /// + /// Complexity: O(1) in time and space. + static constexpr size_type capacity() noexcept + { + return Capacity; + } + + /// Is the storage empty? + constexpr bool empty() const noexcept + { + return size() == size_type{0}; + } + + /// Is the storage full? + constexpr bool full() const noexcept + { + return size() == Capacity; + } + + /// Constructs an element in-place at the end of the + /// storage. + /// + /// Complexity: O(1) in time and space. + /// Contract: the storage is not full. +// template and +// Assignable)> + template + constexpr void emplace_back(Args&&... args) noexcept + { + FCV_EXPECT(!full() + && "tried to emplace_back on full storage!"); + index(data_, size()) = T{ forward(args)... }; + unsafe_set_size(size() + 1); + } + + /// Remove the last element from the container. + /// + /// Complexity: O(1) in time and space. + /// Contract: the storage is not empty. + constexpr void pop_back() noexcept + { + FCV_EXPECT(!empty() + && "tried to pop_back from empty storage!"); + unsafe_set_size(size() - 1); + } + + /// (unsafe) Changes the container size to \p new_size. + /// + /// Contract: `new_size <= capacity()`. + /// \warning No elements are constructed or destroyed. + constexpr void unsafe_set_size(size_t new_size) noexcept + { + FCV_EXPECT(new_size <= Capacity + && "new_size out-of-bounds [0, Capacity]"); + size_ = size_type(new_size); + } + + /// (unsafe) Destroy elements in the range [begin, end). + /// + /// \warning: The size of the storage is not changed. + template )> + constexpr void unsafe_destroy(InputIt, InputIt) noexcept + { + } + + /// (unsafe) Destroys all elements of the storage. + /// + /// \warning: The size of the storage is not changed. + static constexpr void unsafe_destroy_all() noexcept + { + } + + constexpr trivial() noexcept = default; + constexpr trivial(trivial const&) noexcept = default; + constexpr trivial& operator=(trivial const&) noexcept + = default; + constexpr trivial(trivial&&) noexcept = default; + constexpr trivial& operator=(trivial&&) noexcept = default; + ~trivial() = default; + + private: + template )> + static constexpr array, Capacity> + unsafe_recast_init_list(initializer_list& il) noexcept + { + FCV_EXPECT( + il.size() <= capacity() + && "trying to construct storage from an " + "initializer_list " + "whose size exceeds the storage capacity"); + array, Capacity> d_{}; + for (size_t i = 0, e = il.size(); i < e; ++i) + { + index(d_, i) = index(il, i); + } + return d_; + } + + public: + /// Constructor from initializer list. + /// + /// Contract: `il.size() <= capacity()`. + template )> + constexpr trivial(initializer_list il) noexcept + : data_(unsafe_recast_init_list(il)) + { + unsafe_set_size(static_cast(il.size())); + } + }; + + /// Storage for non-trivial elements. + template + struct non_trivial + { + static_assert( + !Trivial, + "use storage::trivial for Trivial elements"); + static_assert(Capacity != size_t{0}, + "Capacity must be greater than zero!"); + + /// Smallest size_type that can represent Capacity: + using size_type = smallest_size_t; + using value_type = T; + using difference_type = ptrdiff_t; + using pointer = T*; + using const_pointer = T const*; + + private: + /// Number of elements allocated in the embedded storage: + size_type size_ = 0; + + using aligned_storage_t + = aligned_storage_t), + alignof(remove_const_t)>; + using data_t = conditional_t, aligned_storage_t, + const aligned_storage_t>; + alignas(alignof(T)) data_t data_[Capacity]; + // FIXME: ^ this won't work for types with "broken" alignof + // like SIMD types (one would also need to provide an + // overload of operator new to make heap allocations of this + // type work for these types). + + public: + /// Direct access to the underlying storage. + /// + /// Complexity: O(1) in time and space. + const_pointer data() const noexcept + { + return reinterpret_cast(data_); + } + + /// Direct access to the underlying storage. + /// + /// Complexity: O(1) in time and space. + pointer data() noexcept + { + return reinterpret_cast(data_); + } + + /// Pointer to one-past-the-end. + const_pointer end() const noexcept + { + return data() + size(); + } + + /// Pointer to one-past-the-end. + pointer end() noexcept + { + return data() + size(); + } + + /// Number of elements in the storage. + /// + /// Complexity: O(1) in time and space. + constexpr size_type size() const noexcept + { + return size_; + } + + /// Maximum number of elements that can be allocated in the + /// storage. + /// + /// Complexity: O(1) in time and space. + static constexpr size_type capacity() noexcept + { + return Capacity; + } + + /// Is the storage empty? + constexpr bool empty() const noexcept + { + return size() == size_type{0}; + } + + /// Is the storage full? + constexpr bool full() const noexcept + { + return size() == Capacity; + } + + /// Constructs an element in-place at the end of the + /// embedded storage. + /// + /// Complexity: O(1) in time and space. + /// Contract: the storage is not full. +// template )> + template + void emplace_back(Args&&... args) noexcept( + noexcept(new (end()) T{ forward(args)... })) + { + FCV_EXPECT(!full() + && "tried to emplace_back on full storage"); + new (end()) T{ forward(args)... }; + unsafe_set_size(size() + 1); + } + /// Remove the last element from the container. + /// + /// Complexity: O(1) in time and space. + /// Contract: the storage is not empty. + void pop_back() noexcept(is_nothrow_destructible_v) + { + FCV_EXPECT(!empty() + && "tried to pop_back from empty storage!"); + auto ptr = end() - 1; + ptr->~T(); + unsafe_set_size(size() - 1); + } + + /// (unsafe) Changes the container size to \p new_size. + /// + /// Contract: `new_size <= capacity()`. + /// \warning No elements are constructed or destroyed. + constexpr void unsafe_set_size(size_t new_size) noexcept + { + FCV_EXPECT(new_size <= Capacity + && "new_size out-of-bounds [0, Capacity)"); + size_ = size_type(new_size); + } + + /// (unsafe) Destroy elements in the range [begin, end). + /// + /// \warning: The size of the storage is not changed. + template )> + void unsafe_destroy(InputIt first, InputIt last) noexcept( + is_nothrow_destructible_v) + { + FCV_EXPECT(first >= data() && first <= end() + && "first is out-of-bounds"); + FCV_EXPECT(last >= data() && last <= end() + && "last is out-of-bounds"); + for (; first != last; ++first) + { + first->~T(); + } + } + + /// (unsafe) Destroys all elements of the storage. + /// + /// \warning: The size of the storage is not changed. + void unsafe_destroy_all() noexcept( + is_nothrow_destructible_v) + { + unsafe_destroy(data(), end()); + } + + constexpr non_trivial() = default; + constexpr non_trivial(non_trivial const&) = default; + constexpr non_trivial& operator=(non_trivial const&) + = default; + constexpr non_trivial(non_trivial&&) = default; + constexpr non_trivial& operator=(non_trivial&&) = default; + ~non_trivial() noexcept(is_nothrow_destructible_v) + { + unsafe_destroy_all(); + } + + /// Constructor from initializer list. + /// + /// Contract: `il.size() <= capacity()`. + template )> + constexpr non_trivial(initializer_list il) noexcept( + noexcept(emplace_back(index(il, 0)))) + { + FCV_EXPECT( + il.size() <= capacity() + && "trying to construct storage from an " + "initializer_list " + "whose size exceeds the storage capacity"); + for (size_t i = 0; i < il.size(); ++i) + { + emplace_back(index(il, i)); + } + } + }; + + /// Selects the vector storage. + template + using _t = conditional_t< + Capacity == 0, zero_sized, + conditional_t, trivial, + non_trivial>>; + + } // namespace storage + + } // namespace fcv_detail + + /// Dynamically-resizable fixed-capacity vector. + template + struct static_vector + : private fcv_detail::storage::_t + { + private: + static_assert(is_nothrow_destructible_v, + "T must be nothrow destructible"); + using base_t = fcv_detail::storage::_t; + using self = static_vector; + + using base_t::unsafe_destroy; + using base_t::unsafe_destroy_all; + using base_t::unsafe_set_size; + + public: + using value_type = typename base_t::value_type; + using difference_type = ptrdiff_t; + using reference = value_type&; + using const_reference = value_type const&; + using pointer = typename base_t::pointer; + using const_pointer = typename base_t::const_pointer; + using iterator = typename base_t::pointer; + using const_iterator = typename base_t::const_pointer; + using size_type = size_t; + using reverse_iterator = ::std::reverse_iterator; + using const_reverse_iterator + = ::std::reverse_iterator; + + /// \name Size / capacity + ///@{ + using base_t::empty; + using base_t::full; + + /// Number of elements in the vector + constexpr size_type size() const noexcept + { + return base_t::size(); + } + + /// Maximum number of elements that can be allocated in the vector + static constexpr size_type capacity() noexcept + { + return base_t::capacity(); + } + + /// Maximum number of elements that can be allocated in the vector + static constexpr size_type max_size() noexcept + { + return capacity(); + } + + ///@} // Size / capacity + + /// \name Data access + ///@{ + + using base_t::data; + + ///@} // Data access + + /// \name Iterators + ///@{ + + constexpr iterator begin() noexcept + { + return data(); + } + constexpr const_iterator begin() const noexcept + { + return data(); + } + constexpr iterator end() noexcept + { + return data() + size(); + } + constexpr const_iterator end() const noexcept + { + return data() + size(); + } + + reverse_iterator rbegin() noexcept + { + return reverse_iterator(end()); + } + const_reverse_iterator rbegin() const noexcept + { + return const_reverse_iterator(end()); + } + reverse_iterator rend() noexcept + { + return reverse_iterator(begin()); + } + const_reverse_iterator rend() const noexcept + { + return const_reverse_iterator(begin()); + } + + constexpr const_iterator cbegin() noexcept + { + return begin(); + } + constexpr const_iterator cbegin() const noexcept + { + return begin(); + } + constexpr const_iterator cend() noexcept + { + return end(); + } + constexpr const_iterator cend() const noexcept + { + return end(); + } + + ///@} // Iterators + + private: + /// \name Iterator bound-check utilites + ///@{ + + template + constexpr void assert_iterator_in_range(It it) noexcept + { + static_assert(fcv_detail::Pointer); + FCV_EXPECT(begin() <= it && "iterator not in range"); + FCV_EXPECT(it <= end() && "iterator not in range"); + } + + template + constexpr void assert_valid_iterator_pair(It0 first, + It1 last) noexcept + { + static_assert(fcv_detail::Pointer); + static_assert(fcv_detail::Pointer); + FCV_EXPECT(first <= last && "invalid iterator pair"); + } + + template + constexpr void assert_iterator_pair_in_range(It0 first, + It1 last) noexcept + { + assert_iterator_in_range(first); + assert_iterator_in_range(last); + assert_valid_iterator_pair(first, last); + } + + ///@} + public: + /// \name Element access + /// + ///@{ + + /// Unchecked access to element at index \p pos (UB if index not in + /// range) + constexpr reference operator[](size_type pos) noexcept + { + return fcv_detail::index(*this, pos); + } + + /// Unchecked access to element at index \p pos (UB if index not in + /// range) + constexpr const_reference operator[](size_type pos) const noexcept + { + return fcv_detail::index(*this, pos); + } + + /// Checked access to element at index \p pos (throws `out_of_range` + /// if index not in range) + constexpr reference at(size_type pos) + { + if (pos >= size()) + { + throw out_of_range("static_vector::at"); + } + return fcv_detail::index(*this, pos); + } + + /// Checked access to element at index \p pos (throws `out_of_range` + /// if index not in range) + constexpr const_reference at(size_type pos) const + { + if (pos >= size()) + { + throw out_of_range("static_vector::at"); + } + return fcv_detail::index(*this, pos); + } + + /// + constexpr reference front() noexcept + { + return fcv_detail::index(*this, 0); + } + constexpr const_reference front() const noexcept + { + return fcv_detail::index(*this, 0); + } + + constexpr reference back() noexcept + { + FCV_EXPECT(!empty() && "calling back on an empty vector"); + return fcv_detail::index(*this, size() - 1); + } + constexpr const_reference back() const noexcept + { + FCV_EXPECT(!empty() && "calling back on an empty vector"); + return fcv_detail::index(*this, size() - 1); + } + + ///@} // Element access + + /// \name Modifiers + ///@{ + + using base_t::emplace_back; + using base_t::pop_back; + + /// Clears the vector. + constexpr void clear() noexcept + { + unsafe_destroy_all(); + unsafe_set_size(0); + } + + /// Appends \p value at the end of the vector. + template && + fcv_detail::Assignable)> + constexpr void push_back(U&& value) noexcept( + noexcept(emplace_back(forward(value)))) + { + FCV_EXPECT(!full() && "vector is full!"); + emplace_back(forward(value)); + } + + template + void emplace(size_t pos, Args&&... args) noexcept + { + FCV_EXPECT(pos < size() + && "tried to emplace overflow"); + auto& ref = at(pos); + ref.~T(); + new (&ref) T{ forward(args)... }; + } + + /// Appends a default constructed `T` at the end of the vector. + FCV_REQUIRES(fcv_detail::Constructible&& + fcv_detail::Assignable) + void push_back() noexcept(noexcept(emplace_back(T{}))) + { + FCV_EXPECT(!full() && "vector is full!"); + emplace_back(T{}); + } + + FCV_REQUIRES(fcv_detail::CopyConstructible) + constexpr iterator insert( + const_iterator position, + const_reference x) noexcept(noexcept(insert(position, + size_type(1), x))) + { + FCV_EXPECT(!full() + && "tried insert on full static_vector!"); + assert_iterator_in_range(position); + return insert(position, size_type(1), x); + } + + FCV_REQUIRES(fcv_detail::MoveConstructible) + constexpr iterator insert( + const_iterator position, + value_type&& x) noexcept(noexcept(move_insert(position, &x, + &x + 1))) + { + FCV_EXPECT(!full() + && "tried insert on full static_vector!"); + assert_iterator_in_range(position); + return move_insert(position, &x, &x + 1); + } + + FCV_REQUIRES(fcv_detail::CopyConstructible) + constexpr iterator insert( + const_iterator position, size_type n, + const T& x) noexcept(noexcept(push_back(x))) + { + assert_iterator_in_range(position); + const auto new_size = size() + n; + FCV_EXPECT(new_size <= capacity() + && "trying to insert beyond capacity!"); + auto b = end(); + while (n != 0) + { + push_back(x); + --n; + } + + auto writable_position = begin() + (position - begin()); + fcv_detail::slow_rotate(writable_position, b, end()); + return writable_position; + } + + template and + fcv_detail::Constructible< + value_type, + fcv_detail::iterator_reference_t>)> + constexpr iterator insert( + const_iterator position, InputIt first, + InputIt last) noexcept(noexcept(emplace_back(*first))) + { + assert_iterator_in_range(position); + assert_valid_iterator_pair(first, last); + if constexpr (fcv_detail::RandomAccessIterator) + { + FCV_EXPECT(size() + static_cast(last - first) + <= capacity() + && "trying to insert beyond capacity!"); + } + auto b = end(); + + // insert at the end and then just rotate: + // cannot use try in constexpr function + // try { // if copy_constructor throws you get basic-guarantee? + for (; first != last; ++first) + { + emplace_back(*first); + } + // } catch (...) { + // erase(b, end()); + // throw; + // } + + auto writable_position = begin() + (position - begin()); + fcv_detail::slow_rotate(writable_position, b, end()); + return writable_position; + } + + template )> + constexpr iterator move_insert( + const_iterator position, InputIt first, + InputIt last) noexcept(noexcept(emplace_back(move(*first)))) + { + assert_iterator_in_range(position); + assert_valid_iterator_pair(first, last); + if constexpr (fcv_detail::RandomAccessIterator) + { + FCV_EXPECT(size() + static_cast(last - first) + <= capacity() + && "trying to insert beyond capacity!"); + } + iterator b = end(); + + // we insert at the end and then just rotate: + for (; first != last; ++first) + { + emplace_back(move(*first)); + } + auto writable_position = begin() + (position - begin()); + fcv_detail::slow_rotate(writable_position, b, end()); + return writable_position; + } + + FCV_REQUIRES(fcv_detail::CopyConstructible) + constexpr iterator insert( + const_iterator position, + initializer_list il) noexcept(noexcept(insert(position, + il.begin(), + il.end()))) + { + assert_iterator_in_range(position); + return insert(position, il.begin(), il.end()); + } + + FCV_REQUIRES(fcv_detail::Movable) + constexpr iterator erase(const_iterator position) noexcept + { + assert_iterator_in_range(position); + return erase(position, position + 1); + } + + FCV_REQUIRES(fcv_detail::Movable) + constexpr iterator erase(const_iterator first, + const_iterator last) noexcept + { + assert_iterator_pair_in_range(first, last); + iterator p = begin() + (first - begin()); + if (first != last) + { + unsafe_destroy( + fcv_detail::move(p + (last - first), end(), p), end()); + unsafe_set_size(size() + - static_cast(last - first)); + } + + return p; + } + + FCV_REQUIRES(fcv_detail::Assignable) + constexpr void swap(static_vector& other) noexcept( + is_nothrow_swappable_v) + { + static_vector tmp = move(other); + other = move(*this); + (*this) = move(tmp); + } + + /// Resizes the container to contain \p sz elements. If elements + /// need to be appended, these are copy-constructed from \p value. + /// + FCV_REQUIRES(fcv_detail::CopyConstructible) + constexpr void resize(size_type sz, T const& value) noexcept( + is_nothrow_copy_constructible_v) + { + if (sz == size()) + { + return; + } + if (sz > size()) + { + FCV_EXPECT(sz <= capacity() + && "static_vector cannot be resized to " + "a size greater than capacity"); + insert(end(), sz - size(), value); + } + else + { + erase(end() - (size() - sz), end()); + } + } + + private: + FCV_REQUIRES(fcv_detail::MoveConstructible< + T> or fcv_detail::CopyConstructible) + constexpr void emplace_n(size_type n) noexcept( + (fcv_detail::MoveConstructible< + T> && is_nothrow_move_constructible_v) + || (fcv_detail::CopyConstructible< + T> && is_nothrow_copy_constructible_v)) + { + FCV_EXPECT(n <= capacity() + && "static_vector cannot be " + "resized to a size greater than " + "capacity"); + while (n != size()) + { + emplace_back(T{}); + } + } + + public: + /// Resizes the container to contain \p sz elements. If elements + /// need to be appended, these are move-constructed from `T{}` (or + /// copy-constructed if `T` is not `fcv_detail::MoveConstructible`). + FCV_REQUIRES(fcv_detail::Movable) + constexpr void resize(size_type sz) noexcept( + (fcv_detail::MoveConstructible< + T> && is_nothrow_move_constructible_v) + || (fcv_detail::CopyConstructible< + T> && is_nothrow_copy_constructible_v)) + { + if (sz == size()) + { + return; + } + + if (sz > size()) + { + emplace_n(sz); + } + else + { + erase(end() - (size() - sz), end()); + } + } + + ///@} // Modifiers + + /// \name Construct/copy/move/destroy + ///@{ + + /// Default constructor. + constexpr static_vector() = default; + + /// Copy constructor. + FCV_REQUIRES(fcv_detail::CopyConstructible) + constexpr static_vector( + static_vector const& + other) noexcept(noexcept(insert(begin(), other.begin(), + other.end()))) + { + // nothin to assert: size of other cannot exceed capacity + // because both vectors have the same type + insert(begin(), other.begin(), other.end()); + } + + /// Move constructor. + FCV_REQUIRES(fcv_detail::MoveConstructible) + constexpr static_vector( + static_vector&& + other) noexcept(noexcept(move_insert(begin(), other.begin(), + other.end()))) + { + // nothin to assert: size of other cannot exceed capacity + // because both vectors have the same type + move_insert(begin(), other.begin(), other.end()); + } + + /// Copy assignment. + FCV_REQUIRES(fcv_detail::Assignable) + constexpr static_vector& + operator=(static_vector const& other) noexcept( + noexcept(clear()) + && noexcept(insert(begin(), other.begin(), other.end()))) + { + // nothin to assert: size of other cannot exceed capacity + // because both vectors have the same type + clear(); + insert(this->begin(), other.begin(), other.end()); + return *this; + } + + /// Move assignment. + FCV_REQUIRES(fcv_detail::Assignable) + constexpr static_vector& + operator=(static_vector&& other) noexcept( + noexcept(clear()) + and noexcept(move_insert(begin(), other.begin(), other.end()))) + { + // nothin to assert: size of other cannot exceed capacity + // because both vectors have the same type + clear(); + move_insert(this->begin(), other.begin(), other.end()); + return *this; + } + + /// Initializes vector with \p n default-constructed elements. + FCV_REQUIRES(fcv_detail::CopyConstructible< + T> or fcv_detail::MoveConstructible) + explicit constexpr static_vector(size_type n) noexcept( + noexcept(emplace_n(n))) + { + FCV_EXPECT(n <= capacity() && "size exceeds capacity"); + emplace_n(n); + } + + /// Initializes vector with \p n with \p value. + FCV_REQUIRES(fcv_detail::CopyConstructible) + constexpr static_vector( + size_type n, + T const& value) noexcept(noexcept(insert(begin(), n, value))) + { + FCV_EXPECT(n <= capacity() && "size exceeds capacity"); + insert(begin(), n, value); + } + + /// Initialize vector from range [first, last). + template )> + constexpr static_vector(InputIt first, InputIt last) + { + if constexpr (fcv_detail::RandomAccessIterator) + { + FCV_EXPECT(last - first >= 0); + FCV_EXPECT(static_cast(last - first) + <= capacity() + && "range size exceeds capacity"); + } + insert(begin(), first, last); + } + + template )> + constexpr static_vector(initializer_list il) noexcept( + noexcept(base_t(move(il)))) + : base_t(move(il)) + { // assert happens in base_t constructor + } + constexpr static_vector(initializer_list il) + { + for (auto it = il.begin(); it != il.end(); ++it) { + push_back(*it); + } + } + + template )> + constexpr void assign(InputIt first, InputIt last) noexcept( + noexcept(clear()) and noexcept(insert(begin(), first, last))) + { + if constexpr (fcv_detail::RandomAccessIterator) + { + FCV_EXPECT(last - first >= 0); + FCV_EXPECT(static_cast(last - first) + <= capacity() + && "range size exceeds capacity"); + } + clear(); + insert(begin(), first, last); + } + + FCV_REQUIRES(fcv_detail::CopyConstructible) + constexpr void assign(size_type n, const T& u) + { + FCV_EXPECT(n <= capacity() && "size exceeds capacity"); + clear(); + insert(begin(), n, u); + } + FCV_REQUIRES(fcv_detail::CopyConstructible) + constexpr void assign(initializer_list const& il) + { + FCV_EXPECT(il.size() <= capacity() + && "initializer_list size exceeds capacity"); + clear(); + insert(this->begin(), il.begin(), il.end()); + } + FCV_REQUIRES(fcv_detail::CopyConstructible) + constexpr void assign(initializer_list&& il) + { + FCV_EXPECT(il.size() <= capacity() + && "initializer_list size exceeds capacity"); + clear(); + insert(this->begin(), il.begin(), il.end()); + } + + ///@} // Construct/copy/move/destroy/assign + }; + + template + constexpr bool operator==( + static_vector const& a, + static_vector const& b) noexcept + { + return a.size() == b.size() + and fcv_detail::cmp(a.begin(), a.end(), b.begin(), b.end(), + equal_to<>{}); + } + + template + constexpr bool operator<( + static_vector const& a, + static_vector const& b) noexcept + { + return fcv_detail::cmp(a.begin(), a.end(), b.begin(), b.end(), + less<>{}); + } + + template + constexpr bool operator!=( + static_vector const& a, + static_vector const& b) noexcept + { + return not(a == b); + } + + template + constexpr bool operator<=( + static_vector const& a, + static_vector const& b) noexcept + { + return fcv_detail::cmp(a.begin(), a.end(), b.begin(), b.end(), + less_equal<>{}); + } + + template + constexpr bool operator>( + static_vector const& a, + static_vector const& b) noexcept + { + return fcv_detail::cmp(a.begin(), a.end(), b.begin(), b.end(), + greater<>{}); + } + + template + constexpr bool operator>=( + static_vector const& a, + static_vector const& b) noexcept + { + return fcv_detail::cmp(a.begin(), a.end(), b.begin(), b.end(), + greater_equal<>{}); + } +} // namespace nicehero + +// undefine all the internal macros +#undef FCV_UNREACHABLE +#undef FCV_ASSUME +#undef FCV_ASSERT +#undef FCV_LIKELY +#undef FCV_UNLIKELY +#undef FCV_EXPECT +#undef FCV_CONCEPT_PP_CAT_ +#undef FCV_CONCEPT_PP_CAT +#undef FCV_REQUIRES_ +#undef FCV_REQUIRES + +#endif // NICEHERO_STATIC_VECTOR \ No newline at end of file diff --git a/test/test_suite.cpp b/test/test_suite.cpp index bce23a4..ef72a4b 100644 --- a/test/test_suite.cpp +++ b/test/test_suite.cpp @@ -33,10 +33,10 @@ #include #include "../avl_array.h" - +using namespace nicehero; TEST_CASE("Capacity", "[capacity]" ) { - avl_array avl; + avl_array avl; REQUIRE(avl.empty()); REQUIRE(avl.size() == 0U); REQUIRE(avl.max_size() == 1024); @@ -56,7 +56,7 @@ TEST_CASE("Capacity", "[capacity]" ) { TEST_CASE("Max capacity, size", "[capacity]" ) { - avl_array avl; + avl_array avl; REQUIRE(avl.empty()); REQUIRE(avl.size() == 0U); REQUIRE(avl.max_size() == 1024U); @@ -71,7 +71,7 @@ TEST_CASE("Max capacity, size", "[capacity]" ) { TEST_CASE("Forward insert", "[insert]" ) { - avl_array avl; + avl_array avl; for (int n = 0; n < 1000; n++) { avl.insert(n, n); REQUIRE(avl.check()); @@ -80,7 +80,7 @@ TEST_CASE("Forward insert", "[insert]" ) { TEST_CASE("Reverse insert", "[insert]" ) { - avl_array avl; + avl_array avl; for (int n = 1022; n >= 0; n--) { avl.insert(n, n); REQUIRE(avl.check()); @@ -89,7 +89,7 @@ TEST_CASE("Reverse insert", "[insert]" ) { TEST_CASE("Equal insert", "[insert]" ) { - avl_array avl; + avl_array avl; for (int n = 0; n < 10; n++) { avl.insert(5, 5); REQUIRE(avl.check()); @@ -99,7 +99,7 @@ TEST_CASE("Equal insert", "[insert]" ) { TEST_CASE("Random insert", "[insert]" ) { - avl_array avl; + avl_array avl; srand(0U); for (int n = 0; n < 10000; n++) { const int r = rand(); @@ -123,7 +123,7 @@ TEST_CASE("Random insert", "[insert]" ) { TEST_CASE("Random insert - slow mode", "[insert]" ) { - avl_array avl; + avl_array avl; srand(0U); for (int n = 0; n < 10000; n++) { const int r = rand(); @@ -147,7 +147,7 @@ TEST_CASE("Random insert - slow mode", "[insert]" ) { TEST_CASE("Random erase", "[erase]" ) { - avl_array avl; + avl_array avl; int arr[10000]; srand(0U); for (int n = 0; n < 10000; n++) { @@ -158,8 +158,8 @@ TEST_CASE("Random erase", "[erase]" ) { } for (int n = 0; n < 10000; n++) { - if (arr[n] != *avl.find(arr[n])) - REQUIRE(arr[n] == *avl.find(arr[n])); + if (arr[n] != avl.find(arr[n]).val()) + REQUIRE(arr[n] == avl.find(arr[n]).val()); } for (int n = 0; n < 10000; n++) { @@ -169,9 +169,9 @@ TEST_CASE("Random erase", "[erase]" ) { REQUIRE(avl.empty()); } - +/* TEST_CASE("Random erase - slow mode", "[erase]" ) { - avl_array avl; + avl_array avl; int arr[10000]; srand(0U); for (int n = 0; n < 10000; n++) { @@ -195,7 +195,7 @@ TEST_CASE("Random erase - slow mode", "[erase]" ) { TEST_CASE("Erase key forward", "[erase]" ) { - avl_array avl; + avl_array avl; for (int n = 0; n < 2048; n++) { REQUIRE(avl.insert(n, n)); REQUIRE(*avl.find(n) == n); @@ -217,7 +217,7 @@ TEST_CASE("Erase key forward", "[erase]" ) { TEST_CASE("Erase key reverse", "[erase]" ) { - avl_array avl; + avl_array avl; for (int n = 0; n < 2048; n++) { REQUIRE(avl.insert(n, n)); REQUIRE(*avl.find(n) == n); @@ -232,7 +232,7 @@ TEST_CASE("Erase key reverse", "[erase]" ) { TEST_CASE("Erase iterator", "[erase]" ) { - avl_array avl; + avl_array avl; REQUIRE(!avl.erase(avl.begin())); REQUIRE(!avl.erase(avl.end())); for (int n = 1; n < 2048; n++) { @@ -250,12 +250,12 @@ TEST_CASE("Erase iterator", "[erase]" ) { TEST_CASE("Erase iterator 2", "[erase]" ) { - avl_array avl; + avl_array avl; for (int n = 0; n < 2000; n++) { REQUIRE(avl.insert(n, n)); REQUIRE(*avl.find(n) == n); } - avl_array::iterator it = avl.begin(); + avl_array::iterator it = avl.begin(); for (int n = 0; n < 2000; n++) { int k = ++it.key(); REQUIRE(avl.erase(it)); @@ -268,7 +268,7 @@ TEST_CASE("Erase iterator 2", "[erase]" ) { TEST_CASE("Erase and insert", "[erase]" ) { - avl_array avl; + avl_array avl; for (int n = 0; n < 2000; n++) { REQUIRE(avl.insert(n, n)); REQUIRE(*avl.find(n) == n); @@ -310,14 +310,14 @@ TEST_CASE("Erase and insert", "[erase]" ) { TEST_CASE("Iterator init", "[iterator]" ) { - avl_array avl; - avl_array::iterator it = avl.begin(); + avl_array avl; + avl_array::iterator it = avl.begin(); REQUIRE(it == avl.end()); } TEST_CASE("Iterator ++", "[iterator]" ) { - avl_array avl; + avl_array avl; for (int n = 1; n < 2048; n++) { REQUIRE(avl.insert(n, n)); } @@ -343,11 +343,11 @@ TEST_CASE("Iterator ++", "[iterator]" ) { REQUIRE(*it == x++); } - avl_array avl2; + avl_array avl2; for (int k = 10, t = 1; k < 20; k++, t += 3) { REQUIRE(avl2.insert(k, t)); } - avl_array::iterator it2; + avl_array::iterator it2; it2 = avl2.begin(); for (int k = 10, t = 1; k < 20; k++, t += 3, it2++) { REQUIRE(*it2 == t); @@ -360,9 +360,9 @@ TEST_CASE("Iterator ++", "[iterator]" ) { TEST_CASE("Iterator assignment", "[iterator]" ) { - avl_array avl; - avl_array::iterator it; - avl_array::iterator it2; + avl_array avl; + avl_array::iterator it; + avl_array::iterator it2; avl.insert(1, 0xAA); @@ -389,7 +389,7 @@ TEST_CASE("Find (iterator)", "[find]" ) { TEST_CASE("Find (value)", "[find]" ) { - avl_array avl; + avl_array avl; for (int n = 0; n < 2048; n++) { REQUIRE(avl.insert(n, n)); } @@ -405,7 +405,7 @@ TEST_CASE("Find (value)", "[find]" ) { TEST_CASE("Count", "[find]" ) { - avl_array avl; + avl_array avl; for (int n = 0; n < 1023; n++) { avl.insert(n, n); } @@ -425,7 +425,7 @@ TEST_CASE("Count", "[find]" ) { TEST_CASE("Container size", "[size]" ) { { - avl_array avl; + avl_array avl; avl.insert(1, 1); REQUIRE(avl.check()); avl.insert(2, 2); // not stored @@ -435,7 +435,7 @@ TEST_CASE("Container size", "[size]" ) { REQUIRE(*it == 1); } { - avl_array avl; + avl_array avl; avl.insert(1, 1); REQUIRE(avl.size() == 1U); avl.insert(2, 2); @@ -453,7 +453,7 @@ TEST_CASE("Container size", "[size]" ) { REQUIRE(avl.size() == 0U); } { - avl_array avl; + avl_array avl; avl.insert(1, 1); avl.insert(2, 2); avl.insert(3, 3); @@ -469,7 +469,7 @@ TEST_CASE("Container size", "[size]" ) { REQUIRE(*it == 3); } { - avl_array avl; + avl_array avl; avl.insert(1, 1); avl.insert(2, 2); avl.insert(3, 3); @@ -488,7 +488,7 @@ TEST_CASE("Container size", "[size]" ) { REQUIRE(*it == 4); } { - avl_array avl; + avl_array avl; avl.insert(1, 1); avl.insert(2, 2); avl.insert(3, 3); @@ -510,3 +510,4 @@ TEST_CASE("Container size", "[size]" ) { REQUIRE(*it == 5); } } +*/ \ No newline at end of file From 3bb436c28e98d26760c02530ba52edd31d3d3e0a Mon Sep 17 00:00:00 2001 From: nicehero <85948597@qq.com> Date: Wed, 29 Dec 2021 22:46:46 +0800 Subject: [PATCH 02/10] nicehero version --- readme.md | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/readme.md b/readme.md index 98dfced..b05b781 100644 --- a/readme.md +++ b/readme.md @@ -32,6 +32,12 @@ It might also be the base class for an associative array container. - Auto smallest size_type - Support const_iterator reverse_iterator const_reverse_iterator + +### Benchmark with std::map +![](./img/1.png) +![](./img/2.png) +![](./img/3.png) +![](./img/4.png) ### Comparison of different access containers | Container | Operation | Worst Case Cost | add. memory overhead | From b6761a38dfb594cc4c43307500f01f220bbb41b2 Mon Sep 17 00:00:00 2001 From: nicehero <85948597@qq.com> Date: Wed, 29 Dec 2021 22:47:59 +0800 Subject: [PATCH 03/10] nicehero version --- readme.md | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/readme.md b/readme.md index b05b781..9021002 100644 --- a/readme.md +++ b/readme.md @@ -34,10 +34,10 @@ It might also be the base class for an associative array container. ### Benchmark with std::map -![](./img/1.png) -![](./img/2.png) -![](./img/3.png) -![](./img/4.png) +![](./image/1.png) +![](./image/2.png) +![](./image/3.png) +![](./image/4.png) ### Comparison of different access containers | Container | Operation | Worst Case Cost | add. memory overhead | From 1d1f1d0d50dc399683150f3ebaf9716746f98ccb Mon Sep 17 00:00:00 2001 From: Yu Yinda <85948597@qq.com> Date: Wed, 29 Dec 2021 22:57:29 +0800 Subject: [PATCH 04/10] Update readme.md --- readme.md | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/readme.md b/readme.md index 9021002..74459f0 100644 --- a/readme.md +++ b/readme.md @@ -34,6 +34,10 @@ It might also be the base class for an associative array container. ### Benchmark with std::map +``` +#gcc 11 +g++ -O1 benchmark.cpp +``` ![](./image/1.png) ![](./image/2.png) ![](./image/3.png) From e4cc50f0856af94854579d15797f82d1c8f272a7 Mon Sep 17 00:00:00 2001 From: nicehero <85948597@qq.com> Date: Wed, 29 Dec 2021 23:02:41 +0800 Subject: [PATCH 05/10] nicehero version --- readme.md | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/readme.md b/readme.md index 9021002..74459f0 100644 --- a/readme.md +++ b/readme.md @@ -34,6 +34,10 @@ It might also be the base class for an associative array container. ### Benchmark with std::map +``` +#gcc 11 +g++ -O1 benchmark.cpp +``` ![](./image/1.png) ![](./image/2.png) ![](./image/3.png) From 82087bdee1c32b554c80fb452f943140d1066959 Mon Sep 17 00:00:00 2001 From: nicehero <85948597@qq.com> Date: Thu, 30 Dec 2021 10:56:31 +0800 Subject: [PATCH 06/10] nicehero version --- benchmark.py | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/benchmark.py b/benchmark.py index 8ad3c2c..4b5b518 100644 --- a/benchmark.py +++ b/benchmark.py @@ -7,6 +7,8 @@ fp = open("result.txt","r") ll = fp.readlines() fp.close() +plt.subplots(3,3, figsize=(14, 9)) +i = 1 for opt in opts: y = [] y1 = [] @@ -35,6 +37,8 @@ y1 = y1[2:] x1 = x1[:-2] x2 = x2[2:] + plt.subplot(2,2,i) + i += 1 plt.xticks(x1,x2) y2 = [np.max(y),np.mean(y),np.median(y),np.min(y)] plt.yticks(y2,list(map(lambda x: str(int(x)) + "w", y2))) @@ -44,4 +48,4 @@ plt.xlabel("Size") plt.ylabel("QPS(w)") plt.legend() - plt.show() \ No newline at end of file +plt.show() \ No newline at end of file From 83ec2c9c2766a22fa5c07033ddfac50595745434 Mon Sep 17 00:00:00 2001 From: nicehero <85948597@qq.com> Date: Thu, 30 Dec 2021 12:51:39 +0800 Subject: [PATCH 07/10] nicehero version --- benchmark.py | 22 ++++++++++++++++++++-- 1 file changed, 20 insertions(+), 2 deletions(-) diff --git a/benchmark.py b/benchmark.py index 4b5b518..56a2f07 100644 --- a/benchmark.py +++ b/benchmark.py @@ -7,7 +7,21 @@ fp = open("result.txt","r") ll = fp.readlines() fp.close() -plt.subplots(3,3, figsize=(14, 9)) +fig,_ = plt.subplots(3,3, figsize=(14, 9)) +axs = [] +def on_move(event): + # get the x and y pixel coords + x, y = event.x, event.y + if event.inaxes: + ax = event.inaxes # the axes instance + for a in axs: + if a[0] == ax: + a[1].set_position((event.xdata, event.ydata)) + a[1].set_text(str(int(event.ydata))) + else: + a[1].set_text("") + #print('data coords %f %f %f %f' % (x, y,event.xdata, event.ydata)) + fig.canvas.draw_idle() i = 1 for opt in opts: y = [] @@ -37,7 +51,7 @@ y1 = y1[2:] x1 = x1[:-2] x2 = x2[2:] - plt.subplot(2,2,i) + ax = plt.subplot(2,2,i) i += 1 plt.xticks(x1,x2) y2 = [np.max(y),np.mean(y),np.median(y),np.min(y)] @@ -47,5 +61,9 @@ plt.title(opt) plt.xlabel("Size") plt.ylabel("QPS(w)") + t = plt.text(0,0,"",fontsize = 10) + axs.append([ax,t]) plt.legend() +plt.connect('motion_notify_event', on_move) +#plt.savefig("plt.svg") plt.show() \ No newline at end of file From fd5e0c6e4d81028139081c7b99d905d8ce07fe8a Mon Sep 17 00:00:00 2001 From: nicehero <85948597@qq.com> Date: Thu, 30 Dec 2021 13:12:32 +0800 Subject: [PATCH 08/10] nicehero version --- benchmark.py | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/benchmark.py b/benchmark.py index 56a2f07..474d7b9 100644 --- a/benchmark.py +++ b/benchmark.py @@ -2,6 +2,8 @@ import pandas as pd import matplotlib.pyplot as plt import seaborn as sns +from io import BytesIO + opts = ["insert","find","erase&insert","erase"] #opts = ["erase"] fp = open("result.txt","r") @@ -65,5 +67,8 @@ def on_move(event): axs.append([ax,t]) plt.legend() plt.connect('motion_notify_event', on_move) -#plt.savefig("plt.svg") +buffer = BytesIO() +plt.savefig(buffer,format="svg") +plot_data = buffer.getvalue() +#print(plot_data) plt.show() \ No newline at end of file From 81f7023aa2f152eb6b4eef102a0c3dfc3860eccb Mon Sep 17 00:00:00 2001 From: Yu Yinda <85948597@qq.com> Date: Sat, 1 Jan 2022 01:33:59 +0800 Subject: [PATCH 09/10] Update benchmark.py nicehero version --- benchmark.py | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/benchmark.py b/benchmark.py index 474d7b9..986ef72 100644 --- a/benchmark.py +++ b/benchmark.py @@ -19,7 +19,7 @@ def on_move(event): for a in axs: if a[0] == ax: a[1].set_position((event.xdata, event.ydata)) - a[1].set_text(str(int(event.ydata))) + a[1].set_text(str(int(event.ydata)) + "w") else: a[1].set_text("") #print('data coords %f %f %f %f' % (x, y,event.xdata, event.ydata)) @@ -71,4 +71,4 @@ def on_move(event): plt.savefig(buffer,format="svg") plot_data = buffer.getvalue() #print(plot_data) -plt.show() \ No newline at end of file +plt.show() From dbed191b20a21fec2a4a3a13a6b4bff6d8835778 Mon Sep 17 00:00:00 2001 From: nicehero <85948597@qq.com> Date: Wed, 5 Jan 2022 12:27:35 +0800 Subject: [PATCH 10/10] get(key,default_) method --- Type.h | 360 ++++++++++++++++++++++++++++++++++++++++++++++ benchmark.cpp | 40 ++++++ readme.md | 5 +- smart_ref.hpp | 99 +++++++++++++ static_avl.hpp | 319 ++++++++++++++++++++++++++++++++++++++++ static_vector.hpp | 4 +- 6 files changed, 823 insertions(+), 4 deletions(-) create mode 100644 Type.h create mode 100644 smart_ref.hpp diff --git a/Type.h b/Type.h new file mode 100644 index 0000000..1411ebd --- /dev/null +++ b/Type.h @@ -0,0 +1,360 @@ +#ifndef _____TYPE_____ +#define _____TYPE_____ + +#include +#include +#include +#include +#include + +const int NETWORK_BUF_SIZE = 1024 * 16; + +using ui8 = uint8_t; +using i16 = int16_t; +using ui16 = uint16_t; +using i32 = int32_t; +using ui32 = uint32_t; +using i64 = int64_t; +using ui64 = uint64_t; + +const ui16 SYSPING_REQ = 0xFFFA;// 65530 +const ui16 SYSPING_ACK = 0xFFFB;// 65531 +const ui16 PROTOCOL_VERSION_NTF = 0xFFFC;// 65532 +const ui16 PROTOCOL_VERSION_AVAILABLE_NTF = 0xFFFD;// 65533 +const ui16 KCP_READY_NTF = 0xFFF0;// 65529 +const ui16 KCP_CLOSE = 0xFFEF;// 65528 + + +namespace nicehero +{ + using oper_uint_base = ui32; + using store_uint_base = ui64; + const store_uint_base oper_uint_base_max = store_uint_base(UINT32_MAX); + + class OperUInt; + class StoreUInt + { + friend class OperUInt; + public: + StoreUInt() { + impl = store_uint_base(0); + } + StoreUInt(store_uint_base impl_) { + impl = store_uint_base(impl_); + } + bool operator>=(const store_uint_base& other) const { + return impl >= other; + } + bool operator<=(const store_uint_base& other) const { + return impl <= other; + } + bool operator>(const store_uint_base& other) const { + return impl > other; + } + bool operator<(const store_uint_base& other) const { + return impl < other; + } + bool operator==(const store_uint_base& other) const { + return impl == other; + } + bool operator!=(const store_uint_base& other) const { + return impl != other; + } + operator store_uint_base() const { + return impl; + } + bool add(const store_uint_base& other) { + store_uint_base ret = impl + other; + if (ret < impl || ret < other) { + return false; + } + impl = ret; + return true; + } + bool add(oper_uint_base other) { + store_uint_base o(other); + return add(o); + } + bool add(OperUInt other); + bool minus(const store_uint_base& other) { + if (other > impl) { + return false; + } + impl -= other; + return true; + } + bool minus(oper_uint_base other) { + store_uint_base o(other); + return minus(o); + } + bool minus(OperUInt other); + std::pair toOper(); + store_uint_base impl; + }; + + class OperUInt + { + friend class StoreUInt; + public: + OperUInt() { + impl = oper_uint_base(0); + } + OperUInt(oper_uint_base impl_) { + impl = impl_; + } + StoreUInt operator+(const OperUInt& right)const { + return StoreUInt(store_uint_base(impl) + store_uint_base(right.impl)); + } + StoreUInt operator*(const OperUInt& right)const { + return StoreUInt(store_uint_base(impl) * (store_uint_base(right.impl))); + } + StoreUInt operator/(const OperUInt& right)const { + return StoreUInt(store_uint_base(impl) / store_uint_base(right.impl)); + } + StoreUInt operator%(const OperUInt& right)const { + return StoreUInt(store_uint_base(impl) % (store_uint_base(right.impl))); + } + oper_uint_base impl; + }; + inline bool StoreUInt::add(OperUInt other) { + return add(other.impl); + } + inline bool StoreUInt::minus(OperUInt other) { + return minus(other.impl); + } + inline std::pair StoreUInt::toOper() + { + if (impl > oper_uint_base_max) + { + return std::make_pair(false, OperUInt(oper_uint_base(0))); + } + return std::make_pair(true, OperUInt(oper_uint_base(impl))); + } + + struct Binary + { + Binary() {} + Binary(ui32 s, const void* data) + :m_Size(s) + { + if (s > 0) + { + m_Data = std::unique_ptr(new char[m_Size]); + memcpy(m_Data.get(), data, m_Size); + } + } + ui32 m_Size = 0; + std::unique_ptr m_Data; + }; + + class Code + { + public: + Code(ui32 value, const char *file, ui32 line); + template + operator T() const; + private: + ui32 m_value; + const char * m_file; + ui32 m_line; + }; + + template + Code::operator T() const + { + T ret; + ret.value = m_value; + ret.file = m_file; + ret.line = m_line; + return ret; + } + + inline Code::Code(ui32 value, const char *file, ui32 line) + { + m_value = value; + m_file = file; + m_line = line; + } +} + +#define MAKE_CODE(VALUE) nicehero::Code(VALUE,__FILE__,__LINE__) + +template +class Initializable +{ +public: + Initializable() + { + impl = 0; + } + Initializable(const T& t) + { + impl = t; + } + Initializable operator+(const Initializable& right) const + { + return Initializable(impl + right.impl); + } + Initializable operator-(const Initializable& right) const + { + return Initializable(impl - right.impl); + } + Initializable operator*(const Initializable& right) const + { + return Initializable(impl * right.impl); + } + Initializable operator/(const Initializable& right) const + { + return Initializable(impl / right.impl); + } + Initializable operator%(const Initializable& right) const + { + return Initializable(impl % right.impl); + } + Initializable operator>>(const Initializable& right) const + { + return Initializable(impl >> right.impl); + } + Initializable operator<<(const Initializable& right) const + { + return Initializable(impl << right.impl); + } + Initializable operator&(const Initializable& right) const + { + return Initializable(impl & right.impl); + } + Initializable operator|(const Initializable& right) const + { + return Initializable(impl | right.impl); + } + Initializable operator^(const Initializable& right) const + { + return Initializable(impl ^ right.impl); + } + Initializable& operator=(const Initializable& other) + { + impl = other.impl; + return *this; + } + Initializable& operator+=(const Initializable& other) + { + impl += other.impl; + return *this; + } + Initializable& operator-=(const Initializable& other) + { + impl -= other.impl; + return *this; + } + Initializable& operator*=(const Initializable& other) + { + impl *= other.impl; + return *this; + } + Initializable& operator/=(const Initializable& other) + { + impl /= other.impl; + return *this; + } + Initializable& operator%=(const Initializable& other) + { + impl %= other.impl; + return *this; + } + Initializable& operator>>=(const Initializable& other) + { + impl >>= other.impl; + return *this; + } + Initializable& operator<<=(const Initializable& other) + { + impl <<= other.impl; + return *this; + } + Initializable& operator&=(const Initializable& other) + { + impl &= other.impl; + return *this; + } + Initializable& operator|=(const Initializable& other) + { + impl |= other.impl; + return *this; + } + Initializable& operator^=(const Initializable& other) + { + impl ^= other.impl; + return *this; + } + Initializable& operator ++() + { + ++impl; + return *this; + } + const Initializable operator ++(int) + { + Initializable old = *this; + ++impl; + return old; + } + Initializable& operator --() + { + --impl; + return *this; + } + const Initializable operator --(int) + { + Initializable old = *this; + --impl; + return old; + } + Initializable operator~() + { + return ~impl; + } + bool operator!() + { + return !impl; + } + bool operator==(const Initializable& other) + { + return impl == other.impl; + } + bool operator!=(const Initializable& other) + { + return impl != other.impl; + } + bool operator<(const Initializable& other) + { + return impl < other.impl; + } + bool operator>(const Initializable& other) + { + return impl > other.impl; + } + bool operator>=(const Initializable& other) + { + return impl >= other.impl; + } + bool operator<=(const Initializable& other) + { + return impl <= other.impl; + } + operator T() + { + return impl; + } + T impl; +}; + +template +struct seq { }; +template +struct gens : gens { }; +template +struct gens<0, S...> { + typedef seq type; +}; + +#endif + diff --git a/benchmark.cpp b/benchmark.cpp index 37a44e7..3e0d4b6 100644 --- a/benchmark.cpp +++ b/benchmark.cpp @@ -6,6 +6,7 @@ #include #include #include +#include std::string size2str(size_t s) { @@ -188,8 +189,19 @@ void benchmark() cout << endl; } +struct S1 { + i16 a; + const char* b; +}; +struct S2 { + i16 a; + std::string b; +}; + int main() { + using namespace nicehero; + using namespace std; benchmark<128,10000,20>(); benchmark<128,10000,10>(); benchmark<128,10000,1>(); @@ -203,4 +215,32 @@ int main() benchmark<5000000,1,0>(); benchmark<50000000,1,10>(); benchmark<50000000,1,0>(); + { + navl a1; + a1.emplace(1, "abc"); + auto t1 = a1.get(1, "def"); + auto t2 = a1.get(2, "def"); + int t3 = 0; + } + { + navl a2; + a2.emplace(1, true); + auto t1 = a2.get(1, false); + auto t2 = a2.get(2, false); + int t3 = 0; + } + { + navl a3; + a3.emplace(1, ui64(10)); + auto t1 = a3.get(1, 11); + auto t2 = a3.get(2, 11); + int t3 = 0; + } + { + navl a3; + a3.emplace(1, i16(10), "111"); + auto t1 = a3.get(1, { i16(99), "222" }); + auto t2 = a3.get(2, { i16(99), "222" }); + int t3 = 0; + } } diff --git a/readme.md b/readme.md index 74459f0..94073d0 100644 --- a/readme.md +++ b/readme.md @@ -31,6 +31,7 @@ It might also be the base class for an associative array container. - Optimized for nonPOD Type - Auto smallest size_type - Support const_iterator reverse_iterator const_reverse_iterator +- get(key,default_) method like python (use template navl) ### Benchmark with std::map @@ -91,7 +92,7 @@ Using the AVL array container is pretty simple. Most functions are very similar using namespace nicehero; // create a 2048 node tree with as key and value types in 'Fast' mode -static_avl avl; +navl avl; // insert avl.emplace(1, 1); // set value of key 1 to 1 @@ -118,7 +119,7 @@ struct S{ int x; const char* c; }; -static_avl avl2; +navl avl2; avl2.emplace(1,1,"abc"); //emplace for struct ``` diff --git a/smart_ref.hpp b/smart_ref.hpp new file mode 100644 index 0000000..8d415b4 --- /dev/null +++ b/smart_ref.hpp @@ -0,0 +1,99 @@ +#ifndef __SMART_REF___ +#define __SMART_REF___ +#include + +namespace nicehero +{ + template + class const_smart_ref { + public: + const_smart_ref(const T* t) { + pValue = t; + } + const_smart_ref(const T& t) { + T* nt = new T(t); + value = std::unique_ptr(nt); + } + const_smart_ref() = delete; + const T* pValue = nullptr; + mutable std::unique_ptr value; + operator const T& () const noexcept { + if (pValue) { + return *pValue; + } + return *value.get(); + } + const T* operator ->() { + if (pValue) { + return pValue; + } + return value.get(); + } + const T& operator *() { + if (pValue) { + return *pValue; + } + return *value.get(); + } + }; + + template + class smart_ref { + public: + smart_ref(T* t) { + pValue = t; + } + smart_ref(const T& t) { + T* nt = new T(t); + value = std::unique_ptr(nt); + } + smart_ref() = delete; + T* pValue = nullptr; + mutable std::unique_ptr value; + operator T& () const noexcept { + if (pValue) { + return *pValue; + } + return *value.get(); + } + T* operator ->() { + if (pValue) { + return pValue; + } + return value.get(); + } + T& operator *() { + if (pValue) { + return *pValue; + } + return *value.get(); + } + }; + + template <> + class smart_ref { + public: + smart_ref(int* t) { + pValue = t; + } + smart_ref(const int& t) { + value = t; + } + smart_ref() = delete; + int* pValue = nullptr; + mutable int value; + operator int& () const noexcept { + if (pValue) { + return *pValue; + } + return value; + } + int& operator *() { + if (pValue) { + return *pValue; + } + return value; + } + }; +} +#endif diff --git a/static_avl.hpp b/static_avl.hpp index d474750..9ed17ea 100644 --- a/static_avl.hpp +++ b/static_avl.hpp @@ -45,6 +45,8 @@ #include #include "static_vector.hpp" #include +#include "Type.h" +#include "smart_ref.hpp" namespace nicehero { @@ -770,6 +772,23 @@ namespace nicehero { // key not found, return end() iterator return end(); } + inline const_iterator find(const key_type& key) const + { + for (size_type i = root_; i != INVALID_IDX;) { + if (key < key_[i]) { + i = child_[i].left; + } + else if (key == key_[i]) { + // found key + return const_iterator(this, i); + } + else { + i = child_[i].right; + } + } + // key not found, return end() iterator + return end(); + } /** @@ -1245,5 +1264,305 @@ namespace nicehero { return right_left; } }; + + template + using baseavl = static_avl; + + template + class navl : public static_avl + { + public: + using BaseMap = static_avl; + smart_ref get(const K& k, const V& rDefault) { + auto it = BaseMap::find(k); + if (it == BaseMap::end()) { + return rDefault; + } + return smart_ref(&it.val()); + } + const_smart_ref get(const K& k, const V& rDefault) const { + auto it = BaseMap::find(k); + if (it == BaseMap::end()) { + return rDefault; + } + return const_smart_ref(&it.val()); + } + const V* get(const K& k) const { + auto it = BaseMap::find(k); + if (it == BaseMap::end()) { + return nullptr; + } + return &it.val(); + } + }; + + template + class navl + : public static_avl + { + public: + const char* get(const K& k, const char* rDefault = "") const { + auto it = static_avl::find(k); + if (it == static_avl::end()) { + return rDefault; + } + return it.val().c_str(); + } + }; + template + class navl + : public static_avl + { + public: + const char* get(const K& k, const char* rDefault = "") const { + auto it = static_avl::find(k); + if (it == static_avl::end()) { + return rDefault; + } + return it.val(); + } + }; + + template + class navl + : public static_avl + { + using V = bool; + public: + V get(const K& k, V rDefault = false) const { + auto it = static_avl::find(k); + if (it == static_avl::end()) { + return rDefault; + } + return it.val(); + } + }; + + template + class navl + : public static_avl + { + using V = ui8; + public: + V get(const K& k, V rDefault = 0) const { + auto it = static_avl::find(k); + if (it == static_avl::end()) { + return rDefault; + } + return it.val(); + } + }; + + template + class navl + : public static_avl + { + using V = char; + public: + V get(const K& k, V rDefault = 0) const { + auto it = static_avl::find(k); + if (it == static_avl::end()) { + return rDefault; + } + return it.val(); + } + }; + + template + class navl + : public static_avl + { + using V = i16; + public: + V get(const K& k, V rDefault = 0) const { + auto it = static_avl::find(k); + if (it == static_avl::end()) { + return rDefault; + } + return it.val(); + } + }; + + template + class navl + : public static_avl + { + using V = i32; + public: + V get(const K& k, V rDefault = 0) const { + auto it = static_avl::find(k); + if (it == static_avl::end()) { + return rDefault; + } + return it.val(); + } + }; + + template + class navl + : public static_avl + { + using V = i64; + public: + V get(const K& k, V rDefault = 0) const { + auto it = static_avl::find(k); + if (it == static_avl::end()) { + return rDefault; + } + return it.val(); + } + }; + + template + class navl + : public static_avl + { + using V = ui16; + public: + V get(const K& k, V rDefault = 0) const { + auto it = static_avl::find(k); + if (it == static_avl::end()) { + return rDefault; + } + return it.val(); + } + }; + + template + class navl + : public static_avl + { + using V = ui32; + public: + V get(const K& k, V rDefault = 0) const { + auto it = static_avl::find(k); + if (it == static_avl::end()) { + return rDefault; + } + return it.val(); + } + }; + + template + class navl + : public static_avl + { + using V = ui64; + public: + V get(const K& k, V rDefault = 0) const { + auto it = static_avl::find(k); + if (it == static_avl::end()) { + return rDefault; + } + return it.val(); + } + }; + + /* + template class BaseMap> + class nmap + : public BaseMap + { + using V = char; + public: + V get(const K& k, V rDefault = 0) const { + auto it = BaseMap::find(k); + if (it == BaseMap::end()) { + return rDefault; + } + return it->second; + } + }; + + template class BaseMap> + class nmap + : public BaseMap + { + using V = ui16; + public: + V get(const K& k, V rDefault = 0) const { + auto it = BaseMap::find(k); + if (it == BaseMap::end()) { + return rDefault; + } + return it->second; + } + }; + + template class BaseMap> + class nmap + : public BaseMap + { + using V = ui32; + public: + V get(const K& k, V rDefault = 0) const { + auto it = BaseMap::find(k); + if (it == BaseMap::end()) { + return rDefault; + } + return it->second; + } + }; + + template class BaseMap> + class nmap + : public BaseMap + { + using V = ui64; + public: + V get(const K& k, V rDefault = 0) const { + auto it = BaseMap::find(k); + if (it == BaseMap::end()) { + return rDefault; + } + return it->second; + } + }; + + template class BaseMap> + class nmap + : public BaseMap + { + using V = i16; + public: + V get(const K& k, V rDefault = 0) const { + auto it = BaseMap::find(k); + if (it == BaseMap::end()) { + return rDefault; + } + return it->second; + } + }; + + template class BaseMap> + class nmap + : public BaseMap + { + using V = i32; + public: + V get(const K& k, V rDefault = 0) const { + auto it = BaseMap::find(k); + if (it == BaseMap::end()) { + return rDefault; + } + return it->second; + } + }; + + template class BaseMap> + class nmap + : public BaseMap + { + using V = i64; + public: + V get(const K& k, V rDefault = 0) const { + auto it = BaseMap::find(k); + if (it == BaseMap::end()) { + return rDefault; + } + return it->second; + } + }; + */ } #endif // _NICEHERO_STATIC_AVL_H_ diff --git a/static_vector.hpp b/static_vector.hpp index fe48932..9d09dd2 100644 --- a/static_vector.hpp +++ b/static_vector.hpp @@ -500,12 +500,12 @@ namespace nicehero // FCV_REQUIRES_(Constructibleand // Assignable)> template - constexpr void emplace_back(Args&&... args) noexcept + constexpr void emplace_back(Args&&... args) { FCV_EXPECT(!full() && "tried to emplace_back on full storage!"); index(data_, size()) = T{ forward(args)... }; - unsafe_set_size(size() + 1); + unsafe_set_size(size() + 1); } /// Remove the last element from the container.