| ///////////////////////////////////////////////////////////////////////////// |
| // |
| // (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_auto_unlink_code |
| #include <boost/intrusive/list.hpp> |
| #include <cassert> |
| |
| using namespace boost::intrusive; |
| |
| typedef list_base_hook<link_mode<auto_unlink> > auto_unlink_hook; |
| |
| class MyClass : public auto_unlink_hook |
| //This hook removes the node in the destructor |
| { |
| int int_; |
| |
| public: |
| MyClass(int i = 0) : int_(i) {} |
| void unlink() { auto_unlink_hook::unlink(); } |
| bool is_linked() { return auto_unlink_hook::is_linked(); } |
| }; |
| |
| //Define a list that will store values using the base hook |
| //The list can't have constant-time size! |
| typedef list< MyClass, constant_time_size<false> > List; |
| |
| int main() |
| { |
| //Create the list |
| List l; |
| { |
| //Create myclass and check it's linked |
| MyClass myclass; |
| assert(myclass.is_linked() == false); |
| |
| //Insert the object |
| l.push_back(myclass); |
| |
| //Check that we have inserted the object |
| assert(l.empty() == false); |
| assert(&l.front() == &myclass); |
| assert(myclass.is_linked() == true); |
| |
| //Now myclass' destructor will unlink it |
| //automatically |
| } |
| |
| //Check auto-unlink has been executed |
| assert(l.empty() == true); |
| |
| { |
| //Now test the unlink() function |
| |
| //Create myclass and check it's linked |
| MyClass myclass; |
| assert(myclass.is_linked() == false); |
| |
| //Insert the object |
| l.push_back(myclass); |
| |
| //Check that we have inserted the object |
| assert(l.empty() == false); |
| assert(&l.front() == &myclass); |
| assert(myclass.is_linked() == true); |
| |
| //Now unlink the node |
| myclass.unlink(); |
| |
| //Check auto-unlink has been executed |
| assert(l.empty() == true); |
| } |
| return 0; |
| } |
| //] |