1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
|
/////////////////////////////////////////////////////////////////////////////
//
// (C) Copyright Ion Gaztanaga 2007-2009
//
// 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.
//
/////////////////////////////////////////////////////////////////////////////
#ifndef BOOST_INTRUSIVE_COMMON_SLIST_ALGORITHMS_HPP
#define BOOST_INTRUSIVE_COMMON_SLIST_ALGORITHMS_HPP
#include <boost/intrusive/detail/config_begin.hpp>
#include <boost/intrusive/intrusive_fwd.hpp>
#include <boost/intrusive/detail/assert.hpp>
#include <cstddef>
namespace boost {
namespace intrusive {
namespace detail {
template<class NodeTraits>
class common_slist_algorithms
{
public:
typedef typename NodeTraits::node node;
typedef typename NodeTraits::node_ptr node_ptr;
typedef typename NodeTraits::const_node_ptr const_node_ptr;
typedef NodeTraits node_traits;
static node_ptr get_previous_node(const node_ptr & prev_init_node, const node_ptr & this_node)
{
node_ptr p = prev_init_node;
for( node_ptr p_next
; this_node != (p_next = NodeTraits::get_next(p))
; p = p_next){
//Logic error: possible use of linear lists with
//operations only permitted with lists
BOOST_INTRUSIVE_INVARIANT_ASSERT(p);
}
return p;
}
static void init_header(const node_ptr & this_node)
{ NodeTraits::set_next(this_node, this_node); }
static void init(const node_ptr & this_node)
{ NodeTraits::set_next(this_node, node_ptr()); }
static bool unique(const const_node_ptr & this_node)
{
node_ptr next = NodeTraits::get_next(this_node);
return !next || next == this_node;
}
static bool inited(const const_node_ptr & this_node)
{ return !NodeTraits::get_next(this_node); }
static void unlink_after(const node_ptr & prev_node)
{
const_node_ptr this_node(NodeTraits::get_next(prev_node));
NodeTraits::set_next(prev_node, NodeTraits::get_next(this_node));
}
static void unlink_after(const node_ptr & prev_node, const node_ptr & last_node)
{ NodeTraits::set_next(prev_node, last_node); }
static void link_after(const node_ptr & prev_node, const node_ptr & this_node)
{
NodeTraits::set_next(this_node, NodeTraits::get_next(prev_node));
NodeTraits::set_next(prev_node, this_node);
}
static void incorporate_after(const node_ptr & bp, const node_ptr & b, const node_ptr & be)
{
node_ptr p(NodeTraits::get_next(bp));
NodeTraits::set_next(bp, b);
NodeTraits::set_next(be, p);
}
static void transfer_after(const node_ptr & bp, const node_ptr & bb, const node_ptr & be)
{
if (bp != bb && bp != be && bb != be) {
node_ptr next_b = NodeTraits::get_next(bb);
node_ptr next_e = NodeTraits::get_next(be);
node_ptr next_p = NodeTraits::get_next(bp);
NodeTraits::set_next(bb, next_e);
NodeTraits::set_next(be, next_p);
NodeTraits::set_next(bp, next_b);
}
}
};
} //namespace detail
} //namespace intrusive
} //namespace boost
#include <boost/intrusive/detail/config_end.hpp>
#endif //BOOST_INTRUSIVE_COMMON_SLIST_ALGORITHMS_HPP
|
