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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_list_algorithms_code
#include <boost/intrusive/circular_list_algorithms.hpp>
#include <cassert>
struct my_node
{
my_node *next_, *prev_;
//other members...
};
//Define our own list_node_traits
struct my_list_node_traits
{
typedef my_node node;
typedef my_node * node_ptr;
typedef const my_node * const_node_ptr;
static node_ptr get_next(const_node_ptr n) { return n->next_; }
static void set_next(node_ptr n, node_ptr next) { n->next_ = next; }
static node *get_previous(const_node_ptr n) { return n->prev_; }
static void set_previous(node_ptr n, node_ptr prev){ n->prev_ = prev; }
};
int main()
{
typedef boost::intrusive::circular_list_algorithms<my_list_node_traits> algo;
my_node one, two, three;
//Create an empty doubly linked list container:
//"one" will be the first node of the container
algo::init_header(&one);
assert(algo::count(&one) == 1);
//Now add a new node before "one"
algo::link_before(&one, &two);
assert(algo::count(&one) == 2);
//Now add a new node after "two"
algo::link_after(&two, &three);
assert(algo::count(&one) == 3);
//Now unlink the node after one
algo::unlink(&three);
assert(algo::count(&one) == 2);
//Now unlink two
algo::unlink(&two);
assert(algo::count(&one) == 1);
//Now unlink one
algo::unlink(&one);
assert(algo::count(&one) == 1);
return 0;
}
//]
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