| ///////////////////////////////////////////////////////////////////////////// |
| // |
| // (C) Copyright Ion Gaztanaga 2006-2009 |
| // |
| // Distributed under the Boost Software License, Version 1.0. |
| // (See accompanying file LICENSE_1_0.txt or copy at |
| // http://www.boost.org/LICENSE_1_0.txt) |
| // |
| // See http://www.boost.org/libs/intrusive for documentation. |
| // |
| ///////////////////////////////////////////////////////////////////////////// |
| //[doc_entity_code |
| #include <boost/intrusive/list.hpp> |
| |
| using namespace boost::intrusive; |
| |
| //A class that can be inserted in an intrusive list |
| class entity : public list_base_hook<> |
| { |
| public: |
| virtual ~entity(); |
| //... |
| }; |
| |
| //"some_entity" derives from "entity" |
| class some_entity : public entity |
| {/**/}; |
| |
| //Definition of the intrusive list |
| typedef list<entity> entity_list; |
| |
| //A global list |
| entity_list global_list; |
| |
| //The destructor removes itself from the global list |
| entity::~entity() |
| { global_list.erase(entity_list::s_iterator_to(*this)); } |
| |
| //Function to insert a new "some_entity" in the global list |
| void insert_some_entity() |
| { global_list.push_back (*new some_entity(/*...*/)); } |
| |
| //Function to clear an entity from the intrusive global list |
| void clear_list () |
| { |
| // entity's destructor removes itself from the global list implicitly |
| while (!global_list.empty()) |
| delete &global_list.front(); |
| } |
| |
| int main() |
| { |
| //Insert some new entities |
| insert_some_entity(); |
| insert_some_entity(); |
| //global_list's destructor will free objects |
| return 0; |
| } |
| |
| //] |