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- /////////////////////////////////////////////////////////////////////////////
- //
- // (C) Copyright Ion Gaztanaga 2006-2013
- //
- // 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) {}
- int get_int() { return int_; }
- 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;
- }
- //]
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