[57] | 1 | /* -*- C++ -*- |
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| 2 | * |
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| 3 | * This file is a part of LEMON, a generic C++ optimization library |
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| 4 | * |
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[107] | 5 | * Copyright (C) 2003-2008 |
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[57] | 6 | * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport |
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| 7 | * (Egervary Research Group on Combinatorial Optimization, EGRES). |
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| 8 | * |
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| 9 | * Permission to use, modify and distribute this software is granted |
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| 10 | * provided that this copyright notice appears in all copies. For |
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| 11 | * precise terms see the accompanying LICENSE file. |
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| 12 | * |
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| 13 | * This software is provided "AS IS" with no warranty of any kind, |
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| 14 | * express or implied, and with no claim as to its suitability for any |
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| 15 | * purpose. |
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| 16 | * |
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| 17 | */ |
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| 18 | |
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| 19 | ///\ingroup graph_concepts |
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| 20 | ///\file |
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| 21 | ///\brief The concept of graph components. |
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| 22 | |
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| 23 | |
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| 24 | #ifndef LEMON_CONCEPT_GRAPH_COMPONENTS_H |
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| 25 | #define LEMON_CONCEPT_GRAPH_COMPONENTS_H |
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| 26 | |
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| 27 | #include <lemon/bits/invalid.h> |
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| 28 | #include <lemon/concepts/maps.h> |
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| 29 | |
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| 30 | #include <lemon/bits/alteration_notifier.h> |
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| 31 | |
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| 32 | namespace lemon { |
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| 33 | namespace concepts { |
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| 34 | |
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| 35 | /// \brief Skeleton class for graph Node and Arc types |
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| 36 | /// |
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| 37 | /// This class describes the interface of Node and Arc (and Edge |
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| 38 | /// in undirected graphs) subtypes of graph types. |
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| 39 | /// |
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| 40 | /// \note This class is a template class so that we can use it to |
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| 41 | /// create graph skeleton classes. The reason for this is than Node |
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| 42 | /// and Arc types should \em not derive from the same base class. |
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| 43 | /// For Node you should instantiate it with character 'n' and for Arc |
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| 44 | /// with 'a'. |
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| 45 | |
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| 46 | #ifndef DOXYGEN |
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| 47 | template <char _selector = '0'> |
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| 48 | #endif |
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| 49 | class GraphItem { |
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| 50 | public: |
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| 51 | /// \brief Default constructor. |
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| 52 | /// |
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| 53 | /// \warning The default constructor is not required to set |
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| 54 | /// the item to some well-defined value. So you should consider it |
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| 55 | /// as uninitialized. |
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| 56 | GraphItem() {} |
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| 57 | /// \brief Copy constructor. |
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| 58 | /// |
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| 59 | /// Copy constructor. |
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| 60 | /// |
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| 61 | GraphItem(const GraphItem &) {} |
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| 62 | /// \brief Invalid constructor \& conversion. |
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| 63 | /// |
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| 64 | /// This constructor initializes the item to be invalid. |
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| 65 | /// \sa Invalid for more details. |
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| 66 | GraphItem(Invalid) {} |
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| 67 | /// \brief Assign operator for nodes. |
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| 68 | /// |
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| 69 | /// The nodes are assignable. |
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| 70 | /// |
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| 71 | GraphItem& operator=(GraphItem const&) { return *this; } |
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| 72 | /// \brief Equality operator. |
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| 73 | /// |
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| 74 | /// Two iterators are equal if and only if they represents the |
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| 75 | /// same node in the graph or both are invalid. |
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| 76 | bool operator==(GraphItem) const { return false; } |
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| 77 | /// \brief Inequality operator. |
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| 78 | /// |
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| 79 | /// \sa operator==(const Node& n) |
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| 80 | /// |
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| 81 | bool operator!=(GraphItem) const { return false; } |
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| 82 | |
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| 83 | /// \brief Artificial ordering operator. |
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| 84 | /// |
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| 85 | /// To allow the use of graph descriptors as key type in std::map or |
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| 86 | /// similar associative container we require this. |
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| 87 | /// |
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| 88 | /// \note This operator only have to define some strict ordering of |
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| 89 | /// the items; this order has nothing to do with the iteration |
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| 90 | /// ordering of the items. |
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| 91 | bool operator<(GraphItem) const { return false; } |
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| 92 | |
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| 93 | template<typename _GraphItem> |
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| 94 | struct Constraints { |
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| 95 | void constraints() { |
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| 96 | _GraphItem i1; |
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| 97 | _GraphItem i2 = i1; |
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| 98 | _GraphItem i3 = INVALID; |
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| 99 | |
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| 100 | i1 = i2 = i3; |
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| 101 | |
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| 102 | bool b; |
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| 103 | // b = (ia == ib) && (ia != ib) && (ia < ib); |
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| 104 | b = (ia == ib) && (ia != ib); |
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| 105 | b = (ia == INVALID) && (ib != INVALID); |
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| 106 | b = (ia < ib); |
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| 107 | } |
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| 108 | |
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| 109 | const _GraphItem &ia; |
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| 110 | const _GraphItem &ib; |
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| 111 | }; |
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| 112 | }; |
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| 113 | |
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| 114 | /// \brief An empty base directed graph class. |
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| 115 | /// |
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| 116 | /// This class provides the minimal set of features needed for a |
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| 117 | /// directed graph structure. All digraph concepts have to be |
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| 118 | /// conform to this base directed graph. It just provides types |
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| 119 | /// for nodes and arcs and functions to get the source and the |
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| 120 | /// target of the arcs. |
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| 121 | class BaseDigraphComponent { |
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| 122 | public: |
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| 123 | |
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| 124 | typedef BaseDigraphComponent Digraph; |
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| 125 | |
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| 126 | /// \brief Node class of the digraph. |
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| 127 | /// |
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| 128 | /// This class represents the Nodes of the digraph. |
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| 129 | /// |
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| 130 | typedef GraphItem<'n'> Node; |
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| 131 | |
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| 132 | /// \brief Arc class of the digraph. |
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| 133 | /// |
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| 134 | /// This class represents the Arcs of the digraph. |
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| 135 | /// |
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| 136 | typedef GraphItem<'e'> Arc; |
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| 137 | |
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| 138 | /// \brief Gives back the target node of an arc. |
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| 139 | /// |
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| 140 | /// Gives back the target node of an arc. |
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| 141 | /// |
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| 142 | Node target(const Arc&) const { return INVALID;} |
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| 143 | |
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| 144 | /// \brief Gives back the source node of an arc. |
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| 145 | /// |
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| 146 | /// Gives back the source node of an arc. |
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| 147 | /// |
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| 148 | Node source(const Arc&) const { return INVALID;} |
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| 149 | |
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| 150 | /// \brief Gives back the opposite node on the given arc. |
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| 151 | /// |
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| 152 | /// Gives back the opposite node on the given arc. |
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| 153 | Node oppositeNode(const Node&, const Arc&) const { |
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| 154 | return INVALID; |
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| 155 | } |
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| 156 | |
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| 157 | template <typename _Digraph> |
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| 158 | struct Constraints { |
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| 159 | typedef typename _Digraph::Node Node; |
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| 160 | typedef typename _Digraph::Arc Arc; |
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| 161 | |
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| 162 | void constraints() { |
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| 163 | checkConcept<GraphItem<'n'>, Node>(); |
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| 164 | checkConcept<GraphItem<'a'>, Arc>(); |
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| 165 | { |
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| 166 | Node n; |
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| 167 | Arc e(INVALID); |
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| 168 | n = digraph.source(e); |
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| 169 | n = digraph.target(e); |
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| 170 | n = digraph.oppositeNode(n, e); |
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| 171 | } |
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| 172 | } |
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| 173 | |
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| 174 | const _Digraph& digraph; |
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| 175 | }; |
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| 176 | }; |
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| 177 | |
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| 178 | /// \brief An empty base undirected graph class. |
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| 179 | /// |
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| 180 | /// This class provides the minimal set of features needed for an |
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| 181 | /// undirected graph structure. All undirected graph concepts have |
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| 182 | /// to be conform to this base graph. It just provides types for |
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| 183 | /// nodes, arcs and edges and functions to get the |
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| 184 | /// source and the target of the arcs and edges, |
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| 185 | /// conversion from arcs to edges and function to get |
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| 186 | /// both direction of the edges. |
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| 187 | class BaseGraphComponent : public BaseDigraphComponent { |
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| 188 | public: |
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| 189 | typedef BaseDigraphComponent::Node Node; |
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| 190 | typedef BaseDigraphComponent::Arc Arc; |
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| 191 | /// \brief Undirected arc class of the graph. |
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| 192 | /// |
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| 193 | /// This class represents the edges of the graph. |
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| 194 | /// The undirected graphs can be used as a directed graph which |
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| 195 | /// for each arc contains the opposite arc too so the graph is |
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| 196 | /// bidirected. The edge represents two opposite |
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| 197 | /// directed arcs. |
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| 198 | class Edge : public GraphItem<'u'> { |
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| 199 | public: |
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| 200 | typedef GraphItem<'u'> Parent; |
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| 201 | /// \brief Default constructor. |
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| 202 | /// |
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| 203 | /// \warning The default constructor is not required to set |
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| 204 | /// the item to some well-defined value. So you should consider it |
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| 205 | /// as uninitialized. |
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| 206 | Edge() {} |
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| 207 | /// \brief Copy constructor. |
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| 208 | /// |
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| 209 | /// Copy constructor. |
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| 210 | /// |
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| 211 | Edge(const Edge &) : Parent() {} |
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| 212 | /// \brief Invalid constructor \& conversion. |
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| 213 | /// |
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| 214 | /// This constructor initializes the item to be invalid. |
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| 215 | /// \sa Invalid for more details. |
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| 216 | Edge(Invalid) {} |
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| 217 | /// \brief Converter from arc to edge. |
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| 218 | /// |
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| 219 | /// Besides the core graph item functionality each arc should |
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| 220 | /// be convertible to the represented edge. |
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| 221 | Edge(const Arc&) {} |
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| 222 | /// \brief Assign arc to edge. |
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| 223 | /// |
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| 224 | /// Besides the core graph item functionality each arc should |
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| 225 | /// be convertible to the represented edge. |
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| 226 | Edge& operator=(const Arc&) { return *this; } |
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| 227 | }; |
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| 228 | |
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| 229 | /// \brief Returns the direction of the arc. |
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| 230 | /// |
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| 231 | /// Returns the direction of the arc. Each arc represents an |
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| 232 | /// edge with a direction. It gives back the |
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| 233 | /// direction. |
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| 234 | bool direction(const Arc&) const { return true; } |
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| 235 | |
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| 236 | /// \brief Returns the directed arc. |
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| 237 | /// |
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| 238 | /// Returns the directed arc from its direction and the |
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| 239 | /// represented edge. |
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| 240 | Arc direct(const Edge&, bool) const { return INVALID;} |
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| 241 | |
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| 242 | /// \brief Returns the directed arc. |
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| 243 | /// |
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| 244 | /// Returns the directed arc from its source and the |
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| 245 | /// represented edge. |
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| 246 | Arc direct(const Edge&, const Node&) const { return INVALID;} |
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| 247 | |
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| 248 | /// \brief Returns the opposite arc. |
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| 249 | /// |
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| 250 | /// Returns the opposite arc. It is the arc representing the |
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| 251 | /// same edge and has opposite direction. |
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| 252 | Arc oppositeArc(const Arc&) const { return INVALID;} |
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| 253 | |
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| 254 | /// \brief Gives back one ending of an edge. |
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| 255 | /// |
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| 256 | /// Gives back one ending of an edge. |
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| 257 | Node u(const Edge&) const { return INVALID;} |
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| 258 | |
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| 259 | /// \brief Gives back the other ending of an edge. |
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| 260 | /// |
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| 261 | /// Gives back the other ending of an edge. |
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| 262 | Node v(const Edge&) const { return INVALID;} |
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| 263 | |
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| 264 | template <typename _Graph> |
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| 265 | struct Constraints { |
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| 266 | typedef typename _Graph::Node Node; |
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| 267 | typedef typename _Graph::Arc Arc; |
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| 268 | typedef typename _Graph::Edge Edge; |
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| 269 | |
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| 270 | void constraints() { |
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| 271 | checkConcept<BaseDigraphComponent, _Graph>(); |
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| 272 | checkConcept<GraphItem<'u'>, Edge>(); |
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| 273 | { |
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| 274 | Node n; |
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| 275 | Edge ue(INVALID); |
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| 276 | Arc e; |
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| 277 | n = graph.u(ue); |
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| 278 | n = graph.v(ue); |
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| 279 | e = graph.direct(ue, true); |
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| 280 | e = graph.direct(ue, n); |
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| 281 | e = graph.oppositeArc(e); |
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| 282 | ue = e; |
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| 283 | bool d = graph.direction(e); |
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| 284 | ignore_unused_variable_warning(d); |
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| 285 | } |
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| 286 | } |
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| 287 | |
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| 288 | const _Graph& graph; |
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| 289 | }; |
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| 290 | |
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| 291 | }; |
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| 292 | |
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| 293 | /// \brief An empty idable base digraph class. |
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| 294 | /// |
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| 295 | /// This class provides beside the core digraph features |
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| 296 | /// core id functions for the digraph structure. |
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| 297 | /// The most of the base digraphs should be conform to this concept. |
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| 298 | /// The id's are unique and immutable. |
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| 299 | template <typename _Base = BaseDigraphComponent> |
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| 300 | class IDableDigraphComponent : public _Base { |
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| 301 | public: |
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| 302 | |
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| 303 | typedef _Base Base; |
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| 304 | typedef typename Base::Node Node; |
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| 305 | typedef typename Base::Arc Arc; |
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| 306 | |
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| 307 | /// \brief Gives back an unique integer id for the Node. |
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| 308 | /// |
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| 309 | /// Gives back an unique integer id for the Node. |
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| 310 | /// |
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| 311 | int id(const Node&) const { return -1;} |
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| 312 | |
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| 313 | /// \brief Gives back the node by the unique id. |
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| 314 | /// |
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| 315 | /// Gives back the node by the unique id. |
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| 316 | /// If the digraph does not contain node with the given id |
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| 317 | /// then the result of the function is undetermined. |
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| 318 | Node nodeFromId(int) const { return INVALID;} |
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| 319 | |
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| 320 | /// \brief Gives back an unique integer id for the Arc. |
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| 321 | /// |
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| 322 | /// Gives back an unique integer id for the Arc. |
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| 323 | /// |
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| 324 | int id(const Arc&) const { return -1;} |
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| 325 | |
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| 326 | /// \brief Gives back the arc by the unique id. |
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| 327 | /// |
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| 328 | /// Gives back the arc by the unique id. |
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| 329 | /// If the digraph does not contain arc with the given id |
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| 330 | /// then the result of the function is undetermined. |
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| 331 | Arc arcFromId(int) const { return INVALID;} |
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| 332 | |
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| 333 | /// \brief Gives back an integer greater or equal to the maximum |
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| 334 | /// Node id. |
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| 335 | /// |
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| 336 | /// Gives back an integer greater or equal to the maximum Node |
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| 337 | /// id. |
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| 338 | int maxNodeId() const { return -1;} |
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| 339 | |
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| 340 | /// \brief Gives back an integer greater or equal to the maximum |
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| 341 | /// Arc id. |
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| 342 | /// |
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| 343 | /// Gives back an integer greater or equal to the maximum Arc |
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| 344 | /// id. |
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| 345 | int maxArcId() const { return -1;} |
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| 346 | |
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| 347 | template <typename _Digraph> |
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| 348 | struct Constraints { |
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| 349 | |
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| 350 | void constraints() { |
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| 351 | checkConcept<Base, _Digraph >(); |
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| 352 | typename _Digraph::Node node; |
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| 353 | int nid = digraph.id(node); |
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| 354 | nid = digraph.id(node); |
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| 355 | node = digraph.nodeFromId(nid); |
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| 356 | typename _Digraph::Arc arc; |
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| 357 | int eid = digraph.id(arc); |
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| 358 | eid = digraph.id(arc); |
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| 359 | arc = digraph.arcFromId(eid); |
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| 360 | |
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| 361 | nid = digraph.maxNodeId(); |
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| 362 | ignore_unused_variable_warning(nid); |
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| 363 | eid = digraph.maxArcId(); |
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| 364 | ignore_unused_variable_warning(eid); |
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| 365 | } |
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| 366 | |
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| 367 | const _Digraph& digraph; |
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| 368 | }; |
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| 369 | }; |
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| 370 | |
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| 371 | /// \brief An empty idable base undirected graph class. |
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| 372 | /// |
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| 373 | /// This class provides beside the core undirected graph features |
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| 374 | /// core id functions for the undirected graph structure. The |
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| 375 | /// most of the base undirected graphs should be conform to this |
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| 376 | /// concept. The id's are unique and immutable. |
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| 377 | template <typename _Base = BaseGraphComponent> |
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| 378 | class IDableGraphComponent : public IDableDigraphComponent<_Base> { |
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| 379 | public: |
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| 380 | |
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| 381 | typedef _Base Base; |
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| 382 | typedef typename Base::Edge Edge; |
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| 383 | |
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| 384 | using IDableDigraphComponent<_Base>::id; |
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| 385 | |
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| 386 | /// \brief Gives back an unique integer id for the Edge. |
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| 387 | /// |
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| 388 | /// Gives back an unique integer id for the Edge. |
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| 389 | /// |
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| 390 | int id(const Edge&) const { return -1;} |
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| 391 | |
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| 392 | /// \brief Gives back the edge by the unique id. |
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| 393 | /// |
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| 394 | /// Gives back the edge by the unique id. If the |
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| 395 | /// graph does not contain arc with the given id then the |
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| 396 | /// result of the function is undetermined. |
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| 397 | Edge edgeFromId(int) const { return INVALID;} |
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| 398 | |
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| 399 | /// \brief Gives back an integer greater or equal to the maximum |
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| 400 | /// Edge id. |
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| 401 | /// |
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| 402 | /// Gives back an integer greater or equal to the maximum Edge |
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| 403 | /// id. |
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| 404 | int maxEdgeId() const { return -1;} |
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| 405 | |
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| 406 | template <typename _Graph> |
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| 407 | struct Constraints { |
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| 408 | |
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| 409 | void constraints() { |
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| 410 | checkConcept<Base, _Graph >(); |
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| 411 | checkConcept<IDableDigraphComponent<Base>, _Graph >(); |
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| 412 | typename _Graph::Edge edge; |
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| 413 | int ueid = graph.id(edge); |
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| 414 | ueid = graph.id(edge); |
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| 415 | edge = graph.edgeFromId(ueid); |
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| 416 | ueid = graph.maxEdgeId(); |
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| 417 | ignore_unused_variable_warning(ueid); |
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| 418 | } |
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| 419 | |
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| 420 | const _Graph& graph; |
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| 421 | }; |
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| 422 | }; |
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| 423 | |
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| 424 | /// \brief Skeleton class for graph NodeIt and ArcIt |
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| 425 | /// |
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| 426 | /// Skeleton class for graph NodeIt and ArcIt. |
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| 427 | /// |
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| 428 | template <typename _Graph, typename _Item> |
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| 429 | class GraphItemIt : public _Item { |
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| 430 | public: |
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| 431 | /// \brief Default constructor. |
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| 432 | /// |
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| 433 | /// @warning The default constructor sets the iterator |
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| 434 | /// to an undefined value. |
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| 435 | GraphItemIt() {} |
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| 436 | /// \brief Copy constructor. |
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| 437 | /// |
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| 438 | /// Copy constructor. |
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| 439 | /// |
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| 440 | GraphItemIt(const GraphItemIt& ) {} |
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| 441 | /// \brief Sets the iterator to the first item. |
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| 442 | /// |
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| 443 | /// Sets the iterator to the first item of \c the graph. |
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| 444 | /// |
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| 445 | explicit GraphItemIt(const _Graph&) {} |
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| 446 | /// \brief Invalid constructor \& conversion. |
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| 447 | /// |
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| 448 | /// This constructor initializes the item to be invalid. |
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| 449 | /// \sa Invalid for more details. |
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| 450 | GraphItemIt(Invalid) {} |
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| 451 | /// \brief Assign operator for items. |
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| 452 | /// |
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| 453 | /// The items are assignable. |
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| 454 | /// |
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| 455 | GraphItemIt& operator=(const GraphItemIt&) { return *this; } |
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| 456 | /// \brief Next item. |
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| 457 | /// |
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| 458 | /// Assign the iterator to the next item. |
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| 459 | /// |
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| 460 | GraphItemIt& operator++() { return *this; } |
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| 461 | /// \brief Equality operator |
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| 462 | /// |
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| 463 | /// Two iterators are equal if and only if they point to the |
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| 464 | /// same object or both are invalid. |
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| 465 | bool operator==(const GraphItemIt&) const { return true;} |
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| 466 | /// \brief Inequality operator |
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| 467 | /// |
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| 468 | /// \sa operator==(Node n) |
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| 469 | /// |
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| 470 | bool operator!=(const GraphItemIt&) const { return true;} |
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| 471 | |
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| 472 | template<typename _GraphItemIt> |
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| 473 | struct Constraints { |
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| 474 | void constraints() { |
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| 475 | _GraphItemIt it1(g); |
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| 476 | _GraphItemIt it2; |
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| 477 | |
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| 478 | it2 = ++it1; |
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| 479 | ++it2 = it1; |
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| 480 | ++(++it1); |
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| 481 | |
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| 482 | _Item bi = it1; |
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| 483 | bi = it2; |
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| 484 | } |
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| 485 | _Graph& g; |
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| 486 | }; |
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| 487 | }; |
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| 488 | |
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| 489 | /// \brief Skeleton class for graph InArcIt and OutArcIt |
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| 490 | /// |
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| 491 | /// \note Because InArcIt and OutArcIt may not inherit from the same |
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| 492 | /// base class, the _selector is a additional template parameter. For |
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| 493 | /// InArcIt you should instantiate it with character 'i' and for |
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| 494 | /// OutArcIt with 'o'. |
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| 495 | template <typename _Graph, |
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| 496 | typename _Item = typename _Graph::Arc, |
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| 497 | typename _Base = typename _Graph::Node, |
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| 498 | char _selector = '0'> |
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| 499 | class GraphIncIt : public _Item { |
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| 500 | public: |
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| 501 | /// \brief Default constructor. |
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| 502 | /// |
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| 503 | /// @warning The default constructor sets the iterator |
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| 504 | /// to an undefined value. |
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| 505 | GraphIncIt() {} |
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| 506 | /// \brief Copy constructor. |
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| 507 | /// |
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| 508 | /// Copy constructor. |
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| 509 | /// |
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| 510 | GraphIncIt(GraphIncIt const& gi) : _Item(gi) {} |
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| 511 | /// \brief Sets the iterator to the first arc incoming into or outgoing |
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| 512 | /// from the node. |
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| 513 | /// |
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| 514 | /// Sets the iterator to the first arc incoming into or outgoing |
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| 515 | /// from the node. |
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| 516 | /// |
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| 517 | explicit GraphIncIt(const _Graph&, const _Base&) {} |
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| 518 | /// \brief Invalid constructor \& conversion. |
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| 519 | /// |
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| 520 | /// This constructor initializes the item to be invalid. |
---|
| 521 | /// \sa Invalid for more details. |
---|
| 522 | GraphIncIt(Invalid) {} |
---|
| 523 | /// \brief Assign operator for iterators. |
---|
| 524 | /// |
---|
| 525 | /// The iterators are assignable. |
---|
| 526 | /// |
---|
| 527 | GraphIncIt& operator=(GraphIncIt const&) { return *this; } |
---|
| 528 | /// \brief Next item. |
---|
| 529 | /// |
---|
| 530 | /// Assign the iterator to the next item. |
---|
| 531 | /// |
---|
| 532 | GraphIncIt& operator++() { return *this; } |
---|
| 533 | |
---|
| 534 | /// \brief Equality operator |
---|
| 535 | /// |
---|
| 536 | /// Two iterators are equal if and only if they point to the |
---|
| 537 | /// same object or both are invalid. |
---|
| 538 | bool operator==(const GraphIncIt&) const { return true;} |
---|
| 539 | |
---|
| 540 | /// \brief Inequality operator |
---|
| 541 | /// |
---|
| 542 | /// \sa operator==(Node n) |
---|
| 543 | /// |
---|
| 544 | bool operator!=(const GraphIncIt&) const { return true;} |
---|
| 545 | |
---|
| 546 | template <typename _GraphIncIt> |
---|
| 547 | struct Constraints { |
---|
| 548 | void constraints() { |
---|
| 549 | checkConcept<GraphItem<_selector>, _GraphIncIt>(); |
---|
| 550 | _GraphIncIt it1(graph, node); |
---|
| 551 | _GraphIncIt it2; |
---|
| 552 | |
---|
| 553 | it2 = ++it1; |
---|
| 554 | ++it2 = it1; |
---|
| 555 | ++(++it1); |
---|
| 556 | _Item e = it1; |
---|
| 557 | e = it2; |
---|
| 558 | |
---|
| 559 | } |
---|
| 560 | |
---|
| 561 | _Item arc; |
---|
| 562 | _Base node; |
---|
| 563 | _Graph graph; |
---|
| 564 | _GraphIncIt it; |
---|
| 565 | }; |
---|
| 566 | }; |
---|
| 567 | |
---|
| 568 | |
---|
| 569 | /// \brief An empty iterable digraph class. |
---|
| 570 | /// |
---|
| 571 | /// This class provides beside the core digraph features |
---|
| 572 | /// iterator based iterable interface for the digraph structure. |
---|
| 573 | /// This concept is part of the Digraph concept. |
---|
| 574 | template <typename _Base = BaseDigraphComponent> |
---|
| 575 | class IterableDigraphComponent : public _Base { |
---|
| 576 | |
---|
| 577 | public: |
---|
| 578 | |
---|
| 579 | typedef _Base Base; |
---|
| 580 | typedef typename Base::Node Node; |
---|
| 581 | typedef typename Base::Arc Arc; |
---|
| 582 | |
---|
| 583 | typedef IterableDigraphComponent Digraph; |
---|
| 584 | |
---|
| 585 | /// \name Base iteration |
---|
| 586 | /// |
---|
| 587 | /// This interface provides functions for iteration on digraph items |
---|
| 588 | /// |
---|
| 589 | /// @{ |
---|
| 590 | |
---|
| 591 | /// \brief Gives back the first node in the iterating order. |
---|
| 592 | /// |
---|
| 593 | /// Gives back the first node in the iterating order. |
---|
| 594 | /// |
---|
| 595 | void first(Node&) const {} |
---|
| 596 | |
---|
| 597 | /// \brief Gives back the next node in the iterating order. |
---|
| 598 | /// |
---|
| 599 | /// Gives back the next node in the iterating order. |
---|
| 600 | /// |
---|
| 601 | void next(Node&) const {} |
---|
| 602 | |
---|
| 603 | /// \brief Gives back the first arc in the iterating order. |
---|
| 604 | /// |
---|
| 605 | /// Gives back the first arc in the iterating order. |
---|
| 606 | /// |
---|
| 607 | void first(Arc&) const {} |
---|
| 608 | |
---|
| 609 | /// \brief Gives back the next arc in the iterating order. |
---|
| 610 | /// |
---|
| 611 | /// Gives back the next arc in the iterating order. |
---|
| 612 | /// |
---|
| 613 | void next(Arc&) const {} |
---|
| 614 | |
---|
| 615 | |
---|
| 616 | /// \brief Gives back the first of the arcs point to the given |
---|
| 617 | /// node. |
---|
| 618 | /// |
---|
| 619 | /// Gives back the first of the arcs point to the given node. |
---|
| 620 | /// |
---|
| 621 | void firstIn(Arc&, const Node&) const {} |
---|
| 622 | |
---|
| 623 | /// \brief Gives back the next of the arcs points to the given |
---|
| 624 | /// node. |
---|
| 625 | /// |
---|
| 626 | /// Gives back the next of the arcs points to the given node. |
---|
| 627 | /// |
---|
| 628 | void nextIn(Arc&) const {} |
---|
| 629 | |
---|
| 630 | /// \brief Gives back the first of the arcs start from the |
---|
| 631 | /// given node. |
---|
| 632 | /// |
---|
| 633 | /// Gives back the first of the arcs start from the given node. |
---|
| 634 | /// |
---|
| 635 | void firstOut(Arc&, const Node&) const {} |
---|
| 636 | |
---|
| 637 | /// \brief Gives back the next of the arcs start from the given |
---|
| 638 | /// node. |
---|
| 639 | /// |
---|
| 640 | /// Gives back the next of the arcs start from the given node. |
---|
| 641 | /// |
---|
| 642 | void nextOut(Arc&) const {} |
---|
| 643 | |
---|
| 644 | /// @} |
---|
| 645 | |
---|
| 646 | /// \name Class based iteration |
---|
| 647 | /// |
---|
| 648 | /// This interface provides functions for iteration on digraph items |
---|
| 649 | /// |
---|
| 650 | /// @{ |
---|
| 651 | |
---|
| 652 | /// \brief This iterator goes through each node. |
---|
| 653 | /// |
---|
| 654 | /// This iterator goes through each node. |
---|
| 655 | /// |
---|
| 656 | typedef GraphItemIt<Digraph, Node> NodeIt; |
---|
| 657 | |
---|
| 658 | /// \brief This iterator goes through each node. |
---|
| 659 | /// |
---|
| 660 | /// This iterator goes through each node. |
---|
| 661 | /// |
---|
| 662 | typedef GraphItemIt<Digraph, Arc> ArcIt; |
---|
| 663 | |
---|
| 664 | /// \brief This iterator goes trough the incoming arcs of a node. |
---|
| 665 | /// |
---|
| 666 | /// This iterator goes trough the \e inccoming arcs of a certain node |
---|
| 667 | /// of a digraph. |
---|
| 668 | typedef GraphIncIt<Digraph, Arc, Node, 'i'> InArcIt; |
---|
| 669 | |
---|
| 670 | /// \brief This iterator goes trough the outgoing arcs of a node. |
---|
| 671 | /// |
---|
| 672 | /// This iterator goes trough the \e outgoing arcs of a certain node |
---|
| 673 | /// of a digraph. |
---|
| 674 | typedef GraphIncIt<Digraph, Arc, Node, 'o'> OutArcIt; |
---|
| 675 | |
---|
| 676 | /// \brief The base node of the iterator. |
---|
| 677 | /// |
---|
| 678 | /// Gives back the base node of the iterator. |
---|
| 679 | /// It is always the target of the pointed arc. |
---|
| 680 | Node baseNode(const InArcIt&) const { return INVALID; } |
---|
| 681 | |
---|
| 682 | /// \brief The running node of the iterator. |
---|
| 683 | /// |
---|
| 684 | /// Gives back the running node of the iterator. |
---|
| 685 | /// It is always the source of the pointed arc. |
---|
| 686 | Node runningNode(const InArcIt&) const { return INVALID; } |
---|
| 687 | |
---|
| 688 | /// \brief The base node of the iterator. |
---|
| 689 | /// |
---|
| 690 | /// Gives back the base node of the iterator. |
---|
| 691 | /// It is always the source of the pointed arc. |
---|
| 692 | Node baseNode(const OutArcIt&) const { return INVALID; } |
---|
| 693 | |
---|
| 694 | /// \brief The running node of the iterator. |
---|
| 695 | /// |
---|
| 696 | /// Gives back the running node of the iterator. |
---|
| 697 | /// It is always the target of the pointed arc. |
---|
| 698 | Node runningNode(const OutArcIt&) const { return INVALID; } |
---|
| 699 | |
---|
| 700 | /// @} |
---|
| 701 | |
---|
| 702 | template <typename _Digraph> |
---|
| 703 | struct Constraints { |
---|
| 704 | void constraints() { |
---|
| 705 | checkConcept<Base, _Digraph>(); |
---|
| 706 | |
---|
| 707 | { |
---|
| 708 | typename _Digraph::Node node(INVALID); |
---|
| 709 | typename _Digraph::Arc arc(INVALID); |
---|
| 710 | { |
---|
| 711 | digraph.first(node); |
---|
| 712 | digraph.next(node); |
---|
| 713 | } |
---|
| 714 | { |
---|
| 715 | digraph.first(arc); |
---|
| 716 | digraph.next(arc); |
---|
| 717 | } |
---|
| 718 | { |
---|
| 719 | digraph.firstIn(arc, node); |
---|
| 720 | digraph.nextIn(arc); |
---|
| 721 | } |
---|
| 722 | { |
---|
| 723 | digraph.firstOut(arc, node); |
---|
| 724 | digraph.nextOut(arc); |
---|
| 725 | } |
---|
| 726 | } |
---|
| 727 | |
---|
| 728 | { |
---|
| 729 | checkConcept<GraphItemIt<_Digraph, typename _Digraph::Arc>, |
---|
| 730 | typename _Digraph::ArcIt >(); |
---|
| 731 | checkConcept<GraphItemIt<_Digraph, typename _Digraph::Node>, |
---|
| 732 | typename _Digraph::NodeIt >(); |
---|
| 733 | checkConcept<GraphIncIt<_Digraph, typename _Digraph::Arc, |
---|
| 734 | typename _Digraph::Node, 'i'>, typename _Digraph::InArcIt>(); |
---|
| 735 | checkConcept<GraphIncIt<_Digraph, typename _Digraph::Arc, |
---|
| 736 | typename _Digraph::Node, 'o'>, typename _Digraph::OutArcIt>(); |
---|
| 737 | |
---|
| 738 | typename _Digraph::Node n; |
---|
| 739 | typename _Digraph::InArcIt ieit(INVALID); |
---|
| 740 | typename _Digraph::OutArcIt oeit(INVALID); |
---|
| 741 | n = digraph.baseNode(ieit); |
---|
| 742 | n = digraph.runningNode(ieit); |
---|
| 743 | n = digraph.baseNode(oeit); |
---|
| 744 | n = digraph.runningNode(oeit); |
---|
| 745 | ignore_unused_variable_warning(n); |
---|
| 746 | } |
---|
| 747 | } |
---|
| 748 | |
---|
| 749 | const _Digraph& digraph; |
---|
| 750 | |
---|
| 751 | }; |
---|
| 752 | }; |
---|
| 753 | |
---|
| 754 | /// \brief An empty iterable undirected graph class. |
---|
| 755 | /// |
---|
| 756 | /// This class provides beside the core graph features iterator |
---|
| 757 | /// based iterable interface for the undirected graph structure. |
---|
| 758 | /// This concept is part of the Graph concept. |
---|
| 759 | template <typename _Base = BaseGraphComponent> |
---|
| 760 | class IterableGraphComponent : public IterableDigraphComponent<_Base> { |
---|
| 761 | public: |
---|
| 762 | |
---|
| 763 | typedef _Base Base; |
---|
| 764 | typedef typename Base::Node Node; |
---|
| 765 | typedef typename Base::Arc Arc; |
---|
| 766 | typedef typename Base::Edge Edge; |
---|
| 767 | |
---|
| 768 | |
---|
| 769 | typedef IterableGraphComponent Graph; |
---|
| 770 | |
---|
| 771 | /// \name Base iteration |
---|
| 772 | /// |
---|
| 773 | /// This interface provides functions for iteration on graph items |
---|
| 774 | /// @{ |
---|
| 775 | |
---|
| 776 | using IterableDigraphComponent<_Base>::first; |
---|
| 777 | using IterableDigraphComponent<_Base>::next; |
---|
| 778 | |
---|
| 779 | /// \brief Gives back the first edge in the iterating |
---|
| 780 | /// order. |
---|
| 781 | /// |
---|
| 782 | /// Gives back the first edge in the iterating order. |
---|
| 783 | /// |
---|
| 784 | void first(Edge&) const {} |
---|
| 785 | |
---|
| 786 | /// \brief Gives back the next edge in the iterating |
---|
| 787 | /// order. |
---|
| 788 | /// |
---|
| 789 | /// Gives back the next edge in the iterating order. |
---|
| 790 | /// |
---|
| 791 | void next(Edge&) const {} |
---|
| 792 | |
---|
| 793 | |
---|
| 794 | /// \brief Gives back the first of the edges from the |
---|
| 795 | /// given node. |
---|
| 796 | /// |
---|
| 797 | /// Gives back the first of the edges from the given |
---|
| 798 | /// node. The bool parameter gives back that direction which |
---|
| 799 | /// gives a good direction of the edge so the source of the |
---|
| 800 | /// directed arc is the given node. |
---|
| 801 | void firstInc(Edge&, bool&, const Node&) const {} |
---|
| 802 | |
---|
| 803 | /// \brief Gives back the next of the edges from the |
---|
| 804 | /// given node. |
---|
| 805 | /// |
---|
| 806 | /// Gives back the next of the edges from the given |
---|
| 807 | /// node. The bool parameter should be used as the \c firstInc() |
---|
| 808 | /// use it. |
---|
| 809 | void nextInc(Edge&, bool&) const {} |
---|
| 810 | |
---|
| 811 | using IterableDigraphComponent<_Base>::baseNode; |
---|
| 812 | using IterableDigraphComponent<_Base>::runningNode; |
---|
| 813 | |
---|
| 814 | /// @} |
---|
| 815 | |
---|
| 816 | /// \name Class based iteration |
---|
| 817 | /// |
---|
| 818 | /// This interface provides functions for iteration on graph items |
---|
| 819 | /// |
---|
| 820 | /// @{ |
---|
| 821 | |
---|
| 822 | /// \brief This iterator goes through each node. |
---|
| 823 | /// |
---|
| 824 | /// This iterator goes through each node. |
---|
| 825 | typedef GraphItemIt<Graph, Edge> EdgeIt; |
---|
| 826 | /// \brief This iterator goes trough the incident arcs of a |
---|
| 827 | /// node. |
---|
| 828 | /// |
---|
| 829 | /// This iterator goes trough the incident arcs of a certain |
---|
| 830 | /// node of a graph. |
---|
[78] | 831 | typedef GraphIncIt<Graph, Edge, Node, 'u'> IncEdgeIt; |
---|
[57] | 832 | /// \brief The base node of the iterator. |
---|
| 833 | /// |
---|
| 834 | /// Gives back the base node of the iterator. |
---|
[78] | 835 | Node baseNode(const IncEdgeIt&) const { return INVALID; } |
---|
[57] | 836 | |
---|
| 837 | /// \brief The running node of the iterator. |
---|
| 838 | /// |
---|
| 839 | /// Gives back the running node of the iterator. |
---|
[78] | 840 | Node runningNode(const IncEdgeIt&) const { return INVALID; } |
---|
[57] | 841 | |
---|
| 842 | /// @} |
---|
| 843 | |
---|
| 844 | template <typename _Graph> |
---|
| 845 | struct Constraints { |
---|
| 846 | void constraints() { |
---|
| 847 | checkConcept<IterableDigraphComponent<Base>, _Graph>(); |
---|
| 848 | |
---|
| 849 | { |
---|
| 850 | typename _Graph::Node node(INVALID); |
---|
| 851 | typename _Graph::Edge edge(INVALID); |
---|
| 852 | bool dir; |
---|
| 853 | { |
---|
| 854 | graph.first(edge); |
---|
| 855 | graph.next(edge); |
---|
| 856 | } |
---|
| 857 | { |
---|
| 858 | graph.firstInc(edge, dir, node); |
---|
| 859 | graph.nextInc(edge, dir); |
---|
| 860 | } |
---|
| 861 | |
---|
| 862 | } |
---|
| 863 | |
---|
| 864 | { |
---|
| 865 | checkConcept<GraphItemIt<_Graph, typename _Graph::Edge>, |
---|
| 866 | typename _Graph::EdgeIt >(); |
---|
| 867 | checkConcept<GraphIncIt<_Graph, typename _Graph::Edge, |
---|
[78] | 868 | typename _Graph::Node, 'u'>, typename _Graph::IncEdgeIt>(); |
---|
[57] | 869 | |
---|
| 870 | typename _Graph::Node n; |
---|
[78] | 871 | typename _Graph::IncEdgeIt ueit(INVALID); |
---|
[57] | 872 | n = graph.baseNode(ueit); |
---|
| 873 | n = graph.runningNode(ueit); |
---|
| 874 | } |
---|
| 875 | } |
---|
| 876 | |
---|
| 877 | const _Graph& graph; |
---|
| 878 | |
---|
| 879 | }; |
---|
| 880 | }; |
---|
| 881 | |
---|
| 882 | /// \brief An empty alteration notifier digraph class. |
---|
| 883 | /// |
---|
| 884 | /// This class provides beside the core digraph features alteration |
---|
| 885 | /// notifier interface for the digraph structure. This implements |
---|
| 886 | /// an observer-notifier pattern for each digraph item. More |
---|
| 887 | /// obsevers can be registered into the notifier and whenever an |
---|
| 888 | /// alteration occured in the digraph all the observers will |
---|
| 889 | /// notified about it. |
---|
| 890 | template <typename _Base = BaseDigraphComponent> |
---|
| 891 | class AlterableDigraphComponent : public _Base { |
---|
| 892 | public: |
---|
| 893 | |
---|
| 894 | typedef _Base Base; |
---|
| 895 | typedef typename Base::Node Node; |
---|
| 896 | typedef typename Base::Arc Arc; |
---|
| 897 | |
---|
| 898 | |
---|
| 899 | /// The node observer registry. |
---|
| 900 | typedef AlterationNotifier<AlterableDigraphComponent, Node> |
---|
| 901 | NodeNotifier; |
---|
| 902 | /// The arc observer registry. |
---|
| 903 | typedef AlterationNotifier<AlterableDigraphComponent, Arc> |
---|
| 904 | ArcNotifier; |
---|
| 905 | |
---|
| 906 | /// \brief Gives back the node alteration notifier. |
---|
| 907 | /// |
---|
| 908 | /// Gives back the node alteration notifier. |
---|
| 909 | NodeNotifier& notifier(Node) const { |
---|
| 910 | return NodeNotifier(); |
---|
| 911 | } |
---|
| 912 | |
---|
| 913 | /// \brief Gives back the arc alteration notifier. |
---|
| 914 | /// |
---|
| 915 | /// Gives back the arc alteration notifier. |
---|
| 916 | ArcNotifier& notifier(Arc) const { |
---|
| 917 | return ArcNotifier(); |
---|
| 918 | } |
---|
| 919 | |
---|
| 920 | template <typename _Digraph> |
---|
| 921 | struct Constraints { |
---|
| 922 | void constraints() { |
---|
| 923 | checkConcept<Base, _Digraph>(); |
---|
| 924 | typename _Digraph::NodeNotifier& nn |
---|
| 925 | = digraph.notifier(typename _Digraph::Node()); |
---|
| 926 | |
---|
| 927 | typename _Digraph::ArcNotifier& en |
---|
| 928 | = digraph.notifier(typename _Digraph::Arc()); |
---|
| 929 | |
---|
| 930 | ignore_unused_variable_warning(nn); |
---|
| 931 | ignore_unused_variable_warning(en); |
---|
| 932 | } |
---|
| 933 | |
---|
| 934 | const _Digraph& digraph; |
---|
| 935 | |
---|
| 936 | }; |
---|
| 937 | |
---|
| 938 | }; |
---|
| 939 | |
---|
| 940 | /// \brief An empty alteration notifier undirected graph class. |
---|
| 941 | /// |
---|
| 942 | /// This class provides beside the core graph features alteration |
---|
| 943 | /// notifier interface for the graph structure. This implements |
---|
| 944 | /// an observer-notifier pattern for each graph item. More |
---|
| 945 | /// obsevers can be registered into the notifier and whenever an |
---|
| 946 | /// alteration occured in the graph all the observers will |
---|
| 947 | /// notified about it. |
---|
| 948 | template <typename _Base = BaseGraphComponent> |
---|
| 949 | class AlterableGraphComponent : public AlterableDigraphComponent<_Base> { |
---|
| 950 | public: |
---|
| 951 | |
---|
| 952 | typedef _Base Base; |
---|
| 953 | typedef typename Base::Edge Edge; |
---|
| 954 | |
---|
| 955 | |
---|
| 956 | /// The arc observer registry. |
---|
| 957 | typedef AlterationNotifier<AlterableGraphComponent, Edge> |
---|
| 958 | EdgeNotifier; |
---|
| 959 | |
---|
| 960 | /// \brief Gives back the arc alteration notifier. |
---|
| 961 | /// |
---|
| 962 | /// Gives back the arc alteration notifier. |
---|
| 963 | EdgeNotifier& notifier(Edge) const { |
---|
| 964 | return EdgeNotifier(); |
---|
| 965 | } |
---|
| 966 | |
---|
| 967 | template <typename _Graph> |
---|
| 968 | struct Constraints { |
---|
| 969 | void constraints() { |
---|
| 970 | checkConcept<AlterableGraphComponent<Base>, _Graph>(); |
---|
| 971 | typename _Graph::EdgeNotifier& uen |
---|
| 972 | = graph.notifier(typename _Graph::Edge()); |
---|
| 973 | ignore_unused_variable_warning(uen); |
---|
| 974 | } |
---|
| 975 | |
---|
| 976 | const _Graph& graph; |
---|
| 977 | |
---|
| 978 | }; |
---|
| 979 | |
---|
| 980 | }; |
---|
| 981 | |
---|
| 982 | /// \brief Class describing the concept of graph maps |
---|
| 983 | /// |
---|
| 984 | /// This class describes the common interface of the graph maps |
---|
| 985 | /// (NodeMap, ArcMap), that is \ref maps-page "maps" which can be used to |
---|
| 986 | /// associate data to graph descriptors (nodes or arcs). |
---|
| 987 | template <typename _Graph, typename _Item, typename _Value> |
---|
| 988 | class GraphMap : public ReadWriteMap<_Item, _Value> { |
---|
| 989 | public: |
---|
| 990 | |
---|
| 991 | typedef ReadWriteMap<_Item, _Value> Parent; |
---|
| 992 | |
---|
| 993 | /// The graph type of the map. |
---|
| 994 | typedef _Graph Graph; |
---|
| 995 | /// The key type of the map. |
---|
| 996 | typedef _Item Key; |
---|
| 997 | /// The value type of the map. |
---|
| 998 | typedef _Value Value; |
---|
| 999 | |
---|
| 1000 | /// \brief Construct a new map. |
---|
| 1001 | /// |
---|
| 1002 | /// Construct a new map for the graph. |
---|
| 1003 | explicit GraphMap(const Graph&) {} |
---|
| 1004 | /// \brief Construct a new map with default value. |
---|
| 1005 | /// |
---|
| 1006 | /// Construct a new map for the graph and initalise the values. |
---|
| 1007 | GraphMap(const Graph&, const Value&) {} |
---|
| 1008 | /// \brief Copy constructor. |
---|
| 1009 | /// |
---|
| 1010 | /// Copy Constructor. |
---|
| 1011 | GraphMap(const GraphMap&) : Parent() {} |
---|
| 1012 | |
---|
| 1013 | /// \brief Assign operator. |
---|
| 1014 | /// |
---|
| 1015 | /// Assign operator. It does not mofify the underlying graph, |
---|
| 1016 | /// it just iterates on the current item set and set the map |
---|
| 1017 | /// with the value returned by the assigned map. |
---|
| 1018 | template <typename CMap> |
---|
| 1019 | GraphMap& operator=(const CMap&) { |
---|
| 1020 | checkConcept<ReadMap<Key, Value>, CMap>(); |
---|
| 1021 | return *this; |
---|
| 1022 | } |
---|
| 1023 | |
---|
| 1024 | template<typename _Map> |
---|
| 1025 | struct Constraints { |
---|
| 1026 | void constraints() { |
---|
| 1027 | checkConcept<ReadWriteMap<Key, Value>, _Map >(); |
---|
| 1028 | // Construction with a graph parameter |
---|
| 1029 | _Map a(g); |
---|
| 1030 | // Constructor with a graph and a default value parameter |
---|
| 1031 | _Map a2(g,t); |
---|
| 1032 | // Copy constructor. |
---|
| 1033 | _Map b(c); |
---|
| 1034 | |
---|
| 1035 | ReadMap<Key, Value> cmap; |
---|
| 1036 | b = cmap; |
---|
| 1037 | |
---|
| 1038 | ignore_unused_variable_warning(a2); |
---|
| 1039 | ignore_unused_variable_warning(b); |
---|
| 1040 | } |
---|
| 1041 | |
---|
| 1042 | const _Map &c; |
---|
| 1043 | const Graph &g; |
---|
| 1044 | const typename GraphMap::Value &t; |
---|
| 1045 | }; |
---|
| 1046 | |
---|
| 1047 | }; |
---|
| 1048 | |
---|
| 1049 | /// \brief An empty mappable digraph class. |
---|
| 1050 | /// |
---|
| 1051 | /// This class provides beside the core digraph features |
---|
| 1052 | /// map interface for the digraph structure. |
---|
| 1053 | /// This concept is part of the Digraph concept. |
---|
| 1054 | template <typename _Base = BaseDigraphComponent> |
---|
| 1055 | class MappableDigraphComponent : public _Base { |
---|
| 1056 | public: |
---|
| 1057 | |
---|
| 1058 | typedef _Base Base; |
---|
| 1059 | typedef typename Base::Node Node; |
---|
| 1060 | typedef typename Base::Arc Arc; |
---|
| 1061 | |
---|
| 1062 | typedef MappableDigraphComponent Digraph; |
---|
| 1063 | |
---|
| 1064 | /// \brief ReadWrite map of the nodes. |
---|
| 1065 | /// |
---|
| 1066 | /// ReadWrite map of the nodes. |
---|
| 1067 | /// |
---|
| 1068 | template <typename _Value> |
---|
| 1069 | class NodeMap : public GraphMap<Digraph, Node, _Value> { |
---|
| 1070 | public: |
---|
| 1071 | typedef GraphMap<MappableDigraphComponent, Node, _Value> Parent; |
---|
| 1072 | |
---|
| 1073 | /// \brief Construct a new map. |
---|
| 1074 | /// |
---|
| 1075 | /// Construct a new map for the digraph. |
---|
| 1076 | explicit NodeMap(const MappableDigraphComponent& digraph) |
---|
| 1077 | : Parent(digraph) {} |
---|
| 1078 | |
---|
| 1079 | /// \brief Construct a new map with default value. |
---|
| 1080 | /// |
---|
| 1081 | /// Construct a new map for the digraph and initalise the values. |
---|
| 1082 | NodeMap(const MappableDigraphComponent& digraph, const _Value& value) |
---|
| 1083 | : Parent(digraph, value) {} |
---|
| 1084 | |
---|
| 1085 | /// \brief Copy constructor. |
---|
| 1086 | /// |
---|
| 1087 | /// Copy Constructor. |
---|
| 1088 | NodeMap(const NodeMap& nm) : Parent(nm) {} |
---|
| 1089 | |
---|
| 1090 | /// \brief Assign operator. |
---|
| 1091 | /// |
---|
| 1092 | /// Assign operator. |
---|
| 1093 | template <typename CMap> |
---|
| 1094 | NodeMap& operator=(const CMap&) { |
---|
| 1095 | checkConcept<ReadMap<Node, _Value>, CMap>(); |
---|
| 1096 | return *this; |
---|
| 1097 | } |
---|
| 1098 | |
---|
| 1099 | }; |
---|
| 1100 | |
---|
| 1101 | /// \brief ReadWrite map of the arcs. |
---|
| 1102 | /// |
---|
| 1103 | /// ReadWrite map of the arcs. |
---|
| 1104 | /// |
---|
| 1105 | template <typename _Value> |
---|
| 1106 | class ArcMap : public GraphMap<Digraph, Arc, _Value> { |
---|
| 1107 | public: |
---|
| 1108 | typedef GraphMap<MappableDigraphComponent, Arc, _Value> Parent; |
---|
| 1109 | |
---|
| 1110 | /// \brief Construct a new map. |
---|
| 1111 | /// |
---|
| 1112 | /// Construct a new map for the digraph. |
---|
| 1113 | explicit ArcMap(const MappableDigraphComponent& digraph) |
---|
| 1114 | : Parent(digraph) {} |
---|
| 1115 | |
---|
| 1116 | /// \brief Construct a new map with default value. |
---|
| 1117 | /// |
---|
| 1118 | /// Construct a new map for the digraph and initalise the values. |
---|
| 1119 | ArcMap(const MappableDigraphComponent& digraph, const _Value& value) |
---|
| 1120 | : Parent(digraph, value) {} |
---|
| 1121 | |
---|
| 1122 | /// \brief Copy constructor. |
---|
| 1123 | /// |
---|
| 1124 | /// Copy Constructor. |
---|
| 1125 | ArcMap(const ArcMap& nm) : Parent(nm) {} |
---|
| 1126 | |
---|
| 1127 | /// \brief Assign operator. |
---|
| 1128 | /// |
---|
| 1129 | /// Assign operator. |
---|
| 1130 | template <typename CMap> |
---|
| 1131 | ArcMap& operator=(const CMap&) { |
---|
| 1132 | checkConcept<ReadMap<Arc, _Value>, CMap>(); |
---|
| 1133 | return *this; |
---|
| 1134 | } |
---|
| 1135 | |
---|
| 1136 | }; |
---|
| 1137 | |
---|
| 1138 | |
---|
| 1139 | template <typename _Digraph> |
---|
| 1140 | struct Constraints { |
---|
| 1141 | |
---|
| 1142 | struct Dummy { |
---|
| 1143 | int value; |
---|
| 1144 | Dummy() : value(0) {} |
---|
| 1145 | Dummy(int _v) : value(_v) {} |
---|
| 1146 | }; |
---|
| 1147 | |
---|
| 1148 | void constraints() { |
---|
| 1149 | checkConcept<Base, _Digraph>(); |
---|
| 1150 | { // int map test |
---|
| 1151 | typedef typename _Digraph::template NodeMap<int> IntNodeMap; |
---|
| 1152 | checkConcept<GraphMap<_Digraph, typename _Digraph::Node, int>, |
---|
| 1153 | IntNodeMap >(); |
---|
| 1154 | } { // bool map test |
---|
| 1155 | typedef typename _Digraph::template NodeMap<bool> BoolNodeMap; |
---|
| 1156 | checkConcept<GraphMap<_Digraph, typename _Digraph::Node, bool>, |
---|
| 1157 | BoolNodeMap >(); |
---|
| 1158 | } { // Dummy map test |
---|
| 1159 | typedef typename _Digraph::template NodeMap<Dummy> DummyNodeMap; |
---|
| 1160 | checkConcept<GraphMap<_Digraph, typename _Digraph::Node, Dummy>, |
---|
| 1161 | DummyNodeMap >(); |
---|
| 1162 | } |
---|
| 1163 | |
---|
| 1164 | { // int map test |
---|
| 1165 | typedef typename _Digraph::template ArcMap<int> IntArcMap; |
---|
| 1166 | checkConcept<GraphMap<_Digraph, typename _Digraph::Arc, int>, |
---|
| 1167 | IntArcMap >(); |
---|
| 1168 | } { // bool map test |
---|
| 1169 | typedef typename _Digraph::template ArcMap<bool> BoolArcMap; |
---|
| 1170 | checkConcept<GraphMap<_Digraph, typename _Digraph::Arc, bool>, |
---|
| 1171 | BoolArcMap >(); |
---|
| 1172 | } { // Dummy map test |
---|
| 1173 | typedef typename _Digraph::template ArcMap<Dummy> DummyArcMap; |
---|
| 1174 | checkConcept<GraphMap<_Digraph, typename _Digraph::Arc, Dummy>, |
---|
| 1175 | DummyArcMap >(); |
---|
| 1176 | } |
---|
| 1177 | } |
---|
| 1178 | |
---|
| 1179 | _Digraph& digraph; |
---|
| 1180 | }; |
---|
| 1181 | }; |
---|
| 1182 | |
---|
| 1183 | /// \brief An empty mappable base bipartite graph class. |
---|
| 1184 | /// |
---|
| 1185 | /// This class provides beside the core graph features |
---|
| 1186 | /// map interface for the graph structure. |
---|
| 1187 | /// This concept is part of the Graph concept. |
---|
| 1188 | template <typename _Base = BaseGraphComponent> |
---|
| 1189 | class MappableGraphComponent : public MappableDigraphComponent<_Base> { |
---|
| 1190 | public: |
---|
| 1191 | |
---|
| 1192 | typedef _Base Base; |
---|
| 1193 | typedef typename Base::Edge Edge; |
---|
| 1194 | |
---|
| 1195 | typedef MappableGraphComponent Graph; |
---|
| 1196 | |
---|
| 1197 | /// \brief ReadWrite map of the edges. |
---|
| 1198 | /// |
---|
| 1199 | /// ReadWrite map of the edges. |
---|
| 1200 | /// |
---|
| 1201 | template <typename _Value> |
---|
| 1202 | class EdgeMap : public GraphMap<Graph, Edge, _Value> { |
---|
| 1203 | public: |
---|
| 1204 | typedef GraphMap<MappableGraphComponent, Edge, _Value> Parent; |
---|
| 1205 | |
---|
| 1206 | /// \brief Construct a new map. |
---|
| 1207 | /// |
---|
| 1208 | /// Construct a new map for the graph. |
---|
| 1209 | explicit EdgeMap(const MappableGraphComponent& graph) |
---|
| 1210 | : Parent(graph) {} |
---|
| 1211 | |
---|
| 1212 | /// \brief Construct a new map with default value. |
---|
| 1213 | /// |
---|
| 1214 | /// Construct a new map for the graph and initalise the values. |
---|
| 1215 | EdgeMap(const MappableGraphComponent& graph, const _Value& value) |
---|
| 1216 | : Parent(graph, value) {} |
---|
| 1217 | |
---|
| 1218 | /// \brief Copy constructor. |
---|
| 1219 | /// |
---|
| 1220 | /// Copy Constructor. |
---|
| 1221 | EdgeMap(const EdgeMap& nm) : Parent(nm) {} |
---|
| 1222 | |
---|
| 1223 | /// \brief Assign operator. |
---|
| 1224 | /// |
---|
| 1225 | /// Assign operator. |
---|
| 1226 | template <typename CMap> |
---|
| 1227 | EdgeMap& operator=(const CMap&) { |
---|
| 1228 | checkConcept<ReadMap<Edge, _Value>, CMap>(); |
---|
| 1229 | return *this; |
---|
| 1230 | } |
---|
| 1231 | |
---|
| 1232 | }; |
---|
| 1233 | |
---|
| 1234 | |
---|
| 1235 | template <typename _Graph> |
---|
| 1236 | struct Constraints { |
---|
| 1237 | |
---|
| 1238 | struct Dummy { |
---|
| 1239 | int value; |
---|
| 1240 | Dummy() : value(0) {} |
---|
| 1241 | Dummy(int _v) : value(_v) {} |
---|
| 1242 | }; |
---|
| 1243 | |
---|
| 1244 | void constraints() { |
---|
| 1245 | checkConcept<MappableGraphComponent<Base>, _Graph>(); |
---|
| 1246 | |
---|
| 1247 | { // int map test |
---|
| 1248 | typedef typename _Graph::template EdgeMap<int> IntEdgeMap; |
---|
| 1249 | checkConcept<GraphMap<_Graph, typename _Graph::Edge, int>, |
---|
| 1250 | IntEdgeMap >(); |
---|
| 1251 | } { // bool map test |
---|
| 1252 | typedef typename _Graph::template EdgeMap<bool> BoolEdgeMap; |
---|
| 1253 | checkConcept<GraphMap<_Graph, typename _Graph::Edge, bool>, |
---|
| 1254 | BoolEdgeMap >(); |
---|
| 1255 | } { // Dummy map test |
---|
| 1256 | typedef typename _Graph::template EdgeMap<Dummy> DummyEdgeMap; |
---|
| 1257 | checkConcept<GraphMap<_Graph, typename _Graph::Edge, Dummy>, |
---|
| 1258 | DummyEdgeMap >(); |
---|
| 1259 | } |
---|
| 1260 | } |
---|
| 1261 | |
---|
| 1262 | _Graph& graph; |
---|
| 1263 | }; |
---|
| 1264 | }; |
---|
| 1265 | |
---|
| 1266 | /// \brief An empty extendable digraph class. |
---|
| 1267 | /// |
---|
| 1268 | /// This class provides beside the core digraph features digraph |
---|
| 1269 | /// extendable interface for the digraph structure. The main |
---|
| 1270 | /// difference between the base and this interface is that the |
---|
| 1271 | /// digraph alterations should handled already on this level. |
---|
| 1272 | template <typename _Base = BaseDigraphComponent> |
---|
| 1273 | class ExtendableDigraphComponent : public _Base { |
---|
| 1274 | public: |
---|
| 1275 | typedef _Base Base; |
---|
| 1276 | |
---|
| 1277 | typedef typename _Base::Node Node; |
---|
| 1278 | typedef typename _Base::Arc Arc; |
---|
| 1279 | |
---|
| 1280 | /// \brief Adds a new node to the digraph. |
---|
| 1281 | /// |
---|
| 1282 | /// Adds a new node to the digraph. |
---|
| 1283 | /// |
---|
| 1284 | Node addNode() { |
---|
| 1285 | return INVALID; |
---|
| 1286 | } |
---|
| 1287 | |
---|
| 1288 | /// \brief Adds a new arc connects the given two nodes. |
---|
| 1289 | /// |
---|
| 1290 | /// Adds a new arc connects the the given two nodes. |
---|
| 1291 | Arc addArc(const Node&, const Node&) { |
---|
| 1292 | return INVALID; |
---|
| 1293 | } |
---|
| 1294 | |
---|
| 1295 | template <typename _Digraph> |
---|
| 1296 | struct Constraints { |
---|
| 1297 | void constraints() { |
---|
| 1298 | checkConcept<Base, _Digraph>(); |
---|
| 1299 | typename _Digraph::Node node_a, node_b; |
---|
| 1300 | node_a = digraph.addNode(); |
---|
| 1301 | node_b = digraph.addNode(); |
---|
| 1302 | typename _Digraph::Arc arc; |
---|
| 1303 | arc = digraph.addArc(node_a, node_b); |
---|
| 1304 | } |
---|
| 1305 | |
---|
| 1306 | _Digraph& digraph; |
---|
| 1307 | }; |
---|
| 1308 | }; |
---|
| 1309 | |
---|
| 1310 | /// \brief An empty extendable base undirected graph class. |
---|
| 1311 | /// |
---|
| 1312 | /// This class provides beside the core undirected graph features |
---|
| 1313 | /// core undircted graph extend interface for the graph structure. |
---|
| 1314 | /// The main difference between the base and this interface is |
---|
| 1315 | /// that the graph alterations should handled already on this |
---|
| 1316 | /// level. |
---|
| 1317 | template <typename _Base = BaseGraphComponent> |
---|
| 1318 | class ExtendableGraphComponent : public _Base { |
---|
| 1319 | public: |
---|
| 1320 | |
---|
| 1321 | typedef _Base Base; |
---|
| 1322 | typedef typename _Base::Node Node; |
---|
| 1323 | typedef typename _Base::Edge Edge; |
---|
| 1324 | |
---|
| 1325 | /// \brief Adds a new node to the graph. |
---|
| 1326 | /// |
---|
| 1327 | /// Adds a new node to the graph. |
---|
| 1328 | /// |
---|
| 1329 | Node addNode() { |
---|
| 1330 | return INVALID; |
---|
| 1331 | } |
---|
| 1332 | |
---|
| 1333 | /// \brief Adds a new arc connects the given two nodes. |
---|
| 1334 | /// |
---|
| 1335 | /// Adds a new arc connects the the given two nodes. |
---|
| 1336 | Edge addArc(const Node&, const Node&) { |
---|
| 1337 | return INVALID; |
---|
| 1338 | } |
---|
| 1339 | |
---|
| 1340 | template <typename _Graph> |
---|
| 1341 | struct Constraints { |
---|
| 1342 | void constraints() { |
---|
| 1343 | checkConcept<Base, _Graph>(); |
---|
| 1344 | typename _Graph::Node node_a, node_b; |
---|
| 1345 | node_a = graph.addNode(); |
---|
| 1346 | node_b = graph.addNode(); |
---|
| 1347 | typename _Graph::Edge edge; |
---|
| 1348 | edge = graph.addEdge(node_a, node_b); |
---|
| 1349 | } |
---|
| 1350 | |
---|
| 1351 | _Graph& graph; |
---|
| 1352 | }; |
---|
| 1353 | }; |
---|
| 1354 | |
---|
| 1355 | /// \brief An empty erasable digraph class. |
---|
| 1356 | /// |
---|
| 1357 | /// This class provides beside the core digraph features core erase |
---|
| 1358 | /// functions for the digraph structure. The main difference between |
---|
| 1359 | /// the base and this interface is that the digraph alterations |
---|
| 1360 | /// should handled already on this level. |
---|
| 1361 | template <typename _Base = BaseDigraphComponent> |
---|
| 1362 | class ErasableDigraphComponent : public _Base { |
---|
| 1363 | public: |
---|
| 1364 | |
---|
| 1365 | typedef _Base Base; |
---|
| 1366 | typedef typename Base::Node Node; |
---|
| 1367 | typedef typename Base::Arc Arc; |
---|
| 1368 | |
---|
| 1369 | /// \brief Erase a node from the digraph. |
---|
| 1370 | /// |
---|
| 1371 | /// Erase a node from the digraph. This function should |
---|
| 1372 | /// erase all arcs connecting to the node. |
---|
| 1373 | void erase(const Node&) {} |
---|
| 1374 | |
---|
| 1375 | /// \brief Erase an arc from the digraph. |
---|
| 1376 | /// |
---|
| 1377 | /// Erase an arc from the digraph. |
---|
| 1378 | /// |
---|
| 1379 | void erase(const Arc&) {} |
---|
| 1380 | |
---|
| 1381 | template <typename _Digraph> |
---|
| 1382 | struct Constraints { |
---|
| 1383 | void constraints() { |
---|
| 1384 | checkConcept<Base, _Digraph>(); |
---|
| 1385 | typename _Digraph::Node node; |
---|
| 1386 | digraph.erase(node); |
---|
| 1387 | typename _Digraph::Arc arc; |
---|
| 1388 | digraph.erase(arc); |
---|
| 1389 | } |
---|
| 1390 | |
---|
| 1391 | _Digraph& digraph; |
---|
| 1392 | }; |
---|
| 1393 | }; |
---|
| 1394 | |
---|
| 1395 | /// \brief An empty erasable base undirected graph class. |
---|
| 1396 | /// |
---|
| 1397 | /// This class provides beside the core undirected graph features |
---|
| 1398 | /// core erase functions for the undirceted graph structure. The |
---|
| 1399 | /// main difference between the base and this interface is that |
---|
| 1400 | /// the graph alterations should handled already on this level. |
---|
| 1401 | template <typename _Base = BaseGraphComponent> |
---|
| 1402 | class ErasableGraphComponent : public _Base { |
---|
| 1403 | public: |
---|
| 1404 | |
---|
| 1405 | typedef _Base Base; |
---|
| 1406 | typedef typename Base::Node Node; |
---|
| 1407 | typedef typename Base::Edge Edge; |
---|
| 1408 | |
---|
| 1409 | /// \brief Erase a node from the graph. |
---|
| 1410 | /// |
---|
| 1411 | /// Erase a node from the graph. This function should erase |
---|
| 1412 | /// arcs connecting to the node. |
---|
| 1413 | void erase(const Node&) {} |
---|
| 1414 | |
---|
| 1415 | /// \brief Erase an arc from the graph. |
---|
| 1416 | /// |
---|
| 1417 | /// Erase an arc from the graph. |
---|
| 1418 | /// |
---|
| 1419 | void erase(const Edge&) {} |
---|
| 1420 | |
---|
| 1421 | template <typename _Graph> |
---|
| 1422 | struct Constraints { |
---|
| 1423 | void constraints() { |
---|
| 1424 | checkConcept<Base, _Graph>(); |
---|
| 1425 | typename _Graph::Node node; |
---|
| 1426 | graph.erase(node); |
---|
| 1427 | typename _Graph::Arc arc; |
---|
| 1428 | graph.erase(arc); |
---|
| 1429 | } |
---|
| 1430 | |
---|
| 1431 | _Graph& graph; |
---|
| 1432 | }; |
---|
| 1433 | }; |
---|
| 1434 | |
---|
| 1435 | /// \brief An empty clearable base digraph class. |
---|
| 1436 | /// |
---|
| 1437 | /// This class provides beside the core digraph features core clear |
---|
| 1438 | /// functions for the digraph structure. The main difference between |
---|
| 1439 | /// the base and this interface is that the digraph alterations |
---|
| 1440 | /// should handled already on this level. |
---|
| 1441 | template <typename _Base = BaseDigraphComponent> |
---|
| 1442 | class ClearableDigraphComponent : public _Base { |
---|
| 1443 | public: |
---|
| 1444 | |
---|
| 1445 | typedef _Base Base; |
---|
| 1446 | |
---|
| 1447 | /// \brief Erase all nodes and arcs from the digraph. |
---|
| 1448 | /// |
---|
| 1449 | /// Erase all nodes and arcs from the digraph. |
---|
| 1450 | /// |
---|
| 1451 | void clear() {} |
---|
| 1452 | |
---|
| 1453 | template <typename _Digraph> |
---|
| 1454 | struct Constraints { |
---|
| 1455 | void constraints() { |
---|
| 1456 | checkConcept<Base, _Digraph>(); |
---|
| 1457 | digraph.clear(); |
---|
| 1458 | } |
---|
| 1459 | |
---|
| 1460 | _Digraph digraph; |
---|
| 1461 | }; |
---|
| 1462 | }; |
---|
| 1463 | |
---|
| 1464 | /// \brief An empty clearable base undirected graph class. |
---|
| 1465 | /// |
---|
| 1466 | /// This class provides beside the core undirected graph features |
---|
| 1467 | /// core clear functions for the undirected graph structure. The |
---|
| 1468 | /// main difference between the base and this interface is that |
---|
| 1469 | /// the graph alterations should handled already on this level. |
---|
| 1470 | template <typename _Base = BaseGraphComponent> |
---|
| 1471 | class ClearableGraphComponent : public ClearableDigraphComponent<_Base> { |
---|
| 1472 | public: |
---|
| 1473 | |
---|
| 1474 | typedef _Base Base; |
---|
| 1475 | |
---|
| 1476 | template <typename _Graph> |
---|
| 1477 | struct Constraints { |
---|
| 1478 | void constraints() { |
---|
| 1479 | checkConcept<ClearableGraphComponent<Base>, _Graph>(); |
---|
| 1480 | } |
---|
| 1481 | |
---|
| 1482 | _Graph graph; |
---|
| 1483 | }; |
---|
| 1484 | }; |
---|
| 1485 | |
---|
| 1486 | } |
---|
| 1487 | |
---|
| 1488 | } |
---|
| 1489 | |
---|
| 1490 | #endif |
---|