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Diffstat (limited to 'pjlib/include/pj++/list.hpp')
| -rw-r--r-- | pjlib/include/pj++/list.hpp | 352 |
1 files changed, 352 insertions, 0 deletions
diff --git a/pjlib/include/pj++/list.hpp b/pjlib/include/pj++/list.hpp new file mode 100644 index 0000000..24217c9 --- /dev/null +++ b/pjlib/include/pj++/list.hpp @@ -0,0 +1,352 @@ +/* $Id: list.hpp 2394 2008-12-23 17:27:53Z bennylp $ */ +/* + * Copyright (C) 2008-2009 Teluu Inc. (http://www.teluu.com) + * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +#ifndef __PJPP_LIST_HPP__ +#define __PJPP_LIST_HPP__ + +#include <pj/list.h> +#include <pj++/pool.hpp> + + +// +// Linked-list. +// +// Note: +// List_Node must have public member next and prev. Normally +// it will be declared like: +// +// struct my_node +// { +// PJ_DECL_LIST_MEMBER(struct my_node); +// .. +// }; +// +// +template <class List_Node> +class Pj_List : public Pj_Object +{ +public: + // + // List const_iterator. + // + class const_iterator + { + public: + const_iterator() + : node_(NULL) + {} + const_iterator(const List_Node *nd) + : node_((List_Node*)nd) + {} + const List_Node * operator *() + { + return node_; + } + const List_Node * operator -> () + { + return node_; + } + const_iterator operator++() + { + return const_iterator((const List_Node *)node_->next); + } + bool operator==(const const_iterator &rhs) + { + return node_ == rhs.node_; + } + bool operator!=(const const_iterator &rhs) + { + return node_ != rhs.node_; + } + + protected: + List_Node *node_; + }; + + // + // List iterator. + // + class iterator : public const_iterator + { + public: + iterator() + {} + iterator(List_Node *nd) + : const_iterator(nd) + {} + List_Node * operator *() + { + return node_; + } + List_Node * operator -> () + { + return node_; + } + iterator operator++() + { + return iterator((List_Node*)node_->next); + } + bool operator==(const iterator &rhs) + { + return node_ == rhs.node_; + } + bool operator!=(const iterator &rhs) + { + return node_ != rhs.node_; + } + }; + + // + // Default constructor. + // + Pj_List() + { + pj_list_init(&root_); + if (0) compiletest(); + } + + // + // You can cast Pj_List to pj_list + // + operator pj_list&() + { + return (pj_list&)root_; + } + operator const pj_list&() + { + return (const pj_list&)root_; + } + + // + // You can cast Pj_List to pj_list* too + // + operator pj_list*() + { + return (pj_list*)&root_; + } + operator const pj_list*() + { + return (const pj_list*)&root_; + } + + // + // Check if list is empty. + // + bool empty() const + { + return pj_list_empty(&root_); + } + + // + // Get first element. + // + iterator begin() + { + return iterator(root_.next); + } + + // + // Get first element. + // + const_iterator begin() const + { + return const_iterator(root_.next); + } + + // + // Get end-of-element + // + const_iterator end() const + { + return const_iterator((List_Node*)&root_); + } + + // + // Get end-of-element + // + iterator end() + { + return iterator((List_Node*)&root_); + } + + // + // Insert node. + // + void insert_before (iterator &pos, List_Node *node) + { + pj_list_insert_before( *pos, node ); + } + + // + // Insert node. + // + void insert_after(iterator &pos, List_Node *node) + { + pj_list_insert_after(*pos, node); + } + + // + // Merge list. + // + void merge_first(List_Node *list2) + { + pj_list_merge_first(&root_, list2); + } + + // + // Merge list. + // + void merge_last(Pj_List *list) + { + pj_list_merge_last(&root_, &list->root_); + } + + // + // Insert list. + // + void insert_nodes_before(iterator &pos, Pj_List *list2) + { + pj_list_insert_nodes_before(*pos, &list2->root_); + } + + // + // Insert list. + // + void insert_nodes_after(iterator &pos, Pj_List *list2) + { + pj_list_insert_nodes_after(*pos, &list2->root_); + } + + // + // Erase an element. + // + void erase(iterator &it) + { + pj_list_erase(*it); + } + + // + // Get first element. + // + List_Node *front() + { + return root_.next; + } + + // + // Get first element. + // + const List_Node *front() const + { + return root_.next; + } + + // + // Remove first element. + // + void pop_front() + { + pj_list_erase(root_.next); + } + + // + // Get last element. + // + List_Node *back() + { + return root_.prev; + } + + // + // Get last element. + // + const List_Node *back() const + { + return root_.prev; + } + + // + // Remove last element. + // + void pop_back() + { + pj_list_erase(root_.prev); + } + + // + // Find a node. + // + iterator find(List_Node *node) + { + List_Node *n = pj_list_find_node(&root_, node); + return n ? iterator(n) : end(); + } + + // + // Find a node. + // + const_iterator find(List_Node *node) const + { + List_Node *n = pj_list_find_node(&root_, node); + return n ? const_iterator(n) : end(); + } + + // + // Insert a node in the back. + // + void push_back(List_Node *node) + { + pj_list_insert_after(root_.prev, node); + } + + // + // Insert a node in the front. + // + void push_front(List_Node *node) + { + pj_list_insert_before(root_.next, node); + } + + // + // Remove all elements. + // + void clear() + { + root_.next = &root_; + root_.prev = &root_; + } + +private: + struct RootNode + { + PJ_DECL_LIST_MEMBER(List_Node); + } root_; + + void compiletest() + { + // If you see error in this line, + // it's because List_Node is not derived from Pj_List_Node. + List_Node *n = (List_Node*)0; + n = (List_Node *)n->next; n = (List_Node *)n->prev; + } +}; + + +#endif /* __PJPP_LIST_HPP__ */ + |