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
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
|
// Copyright (C) Vladimir Prus 2003.
// 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/graph/vector_property_map.html for
// documentation.
//
#ifndef VECTOR_PROPERTY_MAP_HPP_VP_2003_03_04
#define VECTOR_PROPERTY_MAP_HPP_VP_2003_03_04
#include <boost/property_map/property_map.hpp>
#include <boost/shared_ptr.hpp>
#include <vector>
namespace boost {
template<typename T, typename IndexMap = identity_property_map>
class vector_property_map
: public boost::put_get_helper<
typename std::iterator_traits<
typename std::vector<T>::iterator >::reference,
vector_property_map<T, IndexMap> >
{
public:
typedef typename property_traits<IndexMap>::key_type key_type;
typedef T value_type;
typedef typename std::iterator_traits<
typename std::vector<T>::iterator >::reference reference;
typedef boost::lvalue_property_map_tag category;
vector_property_map(const IndexMap& index = IndexMap())
: store(new std::vector<T>()), index(index)
{}
vector_property_map(unsigned initial_size,
const IndexMap& index = IndexMap())
: store(new std::vector<T>(initial_size)), index(index)
{}
typename std::vector<T>::iterator storage_begin()
{
return store->begin();
}
typename std::vector<T>::iterator storage_end()
{
return store->end();
}
typename std::vector<T>::const_iterator storage_begin() const
{
return store->begin();
}
typename std::vector<T>::const_iterator storage_end() const
{
return store->end();
}
IndexMap& get_index_map() { return index; }
const IndexMap& get_index_map() const { return index; }
public:
// Copy ctor absent, default semantics is OK.
// Assignment operator absent, default semantics is OK.
// CONSIDER: not sure that assignment to 'index' is correct.
reference operator[](const key_type& v) const {
typename property_traits<IndexMap>::value_type i = get(index, v);
if (static_cast<unsigned>(i) >= store->size()) {
store->resize(i + 1, T());
}
return (*store)[i];
}
private:
// Conceptually, we have a vector of infinite size. For practical
// purposes, we start with an empty vector and grow it as needed.
// Note that we cannot store pointer to vector here -- we cannot
// store pointer to data, because if copy of property map resizes
// the vector, the pointer to data will be invalidated.
// I wonder if class 'pmap_ref' is simply needed.
shared_ptr< std::vector<T> > store;
IndexMap index;
};
template<typename T, typename IndexMap>
vector_property_map<T, IndexMap>
make_vector_property_map(IndexMap index)
{
return vector_property_map<T, IndexMap>(index);
}
}
#ifdef BOOST_GRAPH_USE_MPI
#include <boost/property_map/parallel/distributed_property_map.hpp>
#include <boost/property_map/parallel/local_property_map.hpp>
namespace boost {
/** Distributed vector property map.
*
* This specialization of @ref vector_property_map builds a
* distributed vector property map given the local index maps
* generated by distributed graph types that automatically have index
* properties.
*
* This specialization is useful when creating external distributed
* property maps via the same syntax used to create external
* sequential property maps.
*/
template<typename T, typename ProcessGroup, typename GlobalMap,
typename StorageMap>
class vector_property_map<T,
local_property_map<ProcessGroup, GlobalMap,
StorageMap> >
: public parallel::distributed_property_map<
ProcessGroup, GlobalMap, vector_property_map<T, StorageMap> >
{
typedef vector_property_map<T, StorageMap> local_iterator_map;
typedef parallel::distributed_property_map<ProcessGroup, GlobalMap,
local_iterator_map> inherited;
typedef local_property_map<ProcessGroup, GlobalMap, StorageMap> index_map_type;
public:
vector_property_map(const index_map_type& index = index_map_type())
: inherited(index.process_group(), index.global(),
local_iterator_map(index.base())) { }
vector_property_map(unsigned inital_size,
const index_map_type& index = index_map_type())
: inherited(index.process_group(), index.global(),
local_iterator_map(inital_size, index.base())) { }
};
/** Distributed vector property map.
*
* This specialization of @ref vector_property_map builds a
* distributed vector property map given the local index maps
* generated by distributed graph types that automatically have index
* properties.
*
* This specialization is useful when creating external distributed
* property maps via the same syntax used to create external
* sequential property maps.
*/
template<typename T, typename ProcessGroup, typename GlobalMap,
typename StorageMap>
class vector_property_map<
T,
parallel::distributed_property_map<
ProcessGroup,
GlobalMap,
StorageMap
>
>
: public parallel::distributed_property_map<
ProcessGroup, GlobalMap, vector_property_map<T, StorageMap> >
{
typedef vector_property_map<T, StorageMap> local_iterator_map;
typedef parallel::distributed_property_map<ProcessGroup, GlobalMap,
local_iterator_map> inherited;
typedef parallel::distributed_property_map<ProcessGroup, GlobalMap,
StorageMap>
index_map_type;
public:
vector_property_map(const index_map_type& index = index_map_type())
: inherited(index.process_group(), index.global(),
local_iterator_map(index.base())) { }
vector_property_map(unsigned inital_size,
const index_map_type& index = index_map_type())
: inherited(index.process_group(), index.global(),
local_iterator_map(inital_size, index.base())) { }
};
}
#endif // BOOST_GRAPH_USE_MPI
#endif
|
