[209] | 1 | /* -*- mode: C++; indent-tabs-mode: nil; -*- |
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[57] | 2 | * |
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[209] | 3 | * This file is a part of LEMON, a generic C++ optimization library. |
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[57] | 4 | * |
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[463] | 5 | * Copyright (C) 2003-2009 |
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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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[576] | 23 | #ifndef LEMON_CONCEPTS_GRAPH_COMPONENTS_H |
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| 24 | #define LEMON_CONCEPTS_GRAPH_COMPONENTS_H |
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[57] | 25 | |
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[220] | 26 | #include <lemon/core.h> |
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[57] | 27 | #include <lemon/concepts/maps.h> |
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| 28 | |
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| 29 | #include <lemon/bits/alteration_notifier.h> |
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| 30 | |
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| 31 | namespace lemon { |
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| 32 | namespace concepts { |
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| 33 | |
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[626] | 34 | /// \brief Concept class for \c Node, \c Arc and \c Edge types. |
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[57] | 35 | /// |
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[626] | 36 | /// This class describes the concept of \c Node, \c Arc and \c Edge |
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| 37 | /// subtypes of digraph and graph types. |
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[57] | 38 | /// |
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| 39 | /// \note This class is a template class so that we can use it to |
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[626] | 40 | /// create graph skeleton classes. The reason for this is that \c Node |
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| 41 | /// and \c Arc (or \c Edge) types should \e not derive from the same |
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| 42 | /// base class. For \c Node you should instantiate it with character |
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| 43 | /// \c 'n', for \c Arc with \c 'a' and for \c Edge with \c 'e'. |
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[57] | 44 | #ifndef DOXYGEN |
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[606] | 45 | template <char sel = '0'> |
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[57] | 46 | #endif |
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| 47 | class GraphItem { |
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| 48 | public: |
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| 49 | /// \brief Default constructor. |
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[209] | 50 | /// |
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[626] | 51 | /// Default constructor. |
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[57] | 52 | /// \warning The default constructor is not required to set |
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| 53 | /// the item to some well-defined value. So you should consider it |
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| 54 | /// as uninitialized. |
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| 55 | GraphItem() {} |
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[626] | 56 | |
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[57] | 57 | /// \brief Copy constructor. |
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| 58 | /// |
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| 59 | /// Copy constructor. |
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[626] | 60 | GraphItem(const GraphItem &) {} |
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| 61 | |
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| 62 | /// \brief Constructor for conversion from \c INVALID. |
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[57] | 63 | /// |
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[626] | 64 | /// Constructor for conversion from \c INVALID. |
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| 65 | /// It initializes the item to be invalid. |
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[57] | 66 | /// \sa Invalid for more details. |
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| 67 | GraphItem(Invalid) {} |
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[626] | 68 | |
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| 69 | /// \brief Assignment operator. |
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[57] | 70 | /// |
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[626] | 71 | /// Assignment operator for the item. |
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| 72 | GraphItem& operator=(const GraphItem&) { return *this; } |
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| 73 | |
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[57] | 74 | /// \brief Equality operator. |
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| 75 | /// |
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[626] | 76 | /// Equality operator. |
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| 77 | bool operator==(const GraphItem&) const { return false; } |
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| 78 | |
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[57] | 79 | /// \brief Inequality operator. |
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| 80 | /// |
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[626] | 81 | /// Inequality operator. |
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| 82 | bool operator!=(const GraphItem&) const { return false; } |
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| 83 | |
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| 84 | /// \brief Ordering operator. |
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[57] | 85 | /// |
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[626] | 86 | /// This operator defines an ordering of the items. |
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| 87 | /// It makes possible to use graph item types as key types in |
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| 88 | /// associative containers (e.g. \c std::map). |
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[57] | 89 | /// |
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| 90 | /// \note This operator only have to define some strict ordering of |
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| 91 | /// the items; this order has nothing to do with the iteration |
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| 92 | /// ordering of the items. |
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[626] | 93 | bool operator<(const GraphItem&) const { return false; } |
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[57] | 94 | |
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| 95 | template<typename _GraphItem> |
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| 96 | struct Constraints { |
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[209] | 97 | void constraints() { |
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| 98 | _GraphItem i1; |
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| 99 | _GraphItem i2 = i1; |
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| 100 | _GraphItem i3 = INVALID; |
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[57] | 101 | |
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[209] | 102 | i1 = i2 = i3; |
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| 103 | |
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| 104 | bool b; |
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| 105 | b = (ia == ib) && (ia != ib); |
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| 106 | b = (ia == INVALID) && (ib != INVALID); |
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[57] | 107 | b = (ia < ib); |
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[209] | 108 | } |
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[57] | 109 | |
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[209] | 110 | const _GraphItem &ia; |
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| 111 | const _GraphItem &ib; |
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[57] | 112 | }; |
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| 113 | }; |
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| 114 | |
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[626] | 115 | /// \brief Base skeleton class for directed graphs. |
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[209] | 116 | /// |
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[626] | 117 | /// This class describes the base interface of directed graph types. |
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| 118 | /// All digraph %concepts have to conform to this class. |
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| 119 | /// It just provides types for nodes and arcs and functions |
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| 120 | /// to get the source and the target nodes of arcs. |
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[57] | 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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[209] | 125 | |
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[57] | 126 | /// \brief Node class of the digraph. |
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| 127 | /// |
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[626] | 128 | /// This class represents the nodes of the digraph. |
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[57] | 129 | typedef GraphItem<'n'> Node; |
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| 130 | |
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| 131 | /// \brief Arc class of the digraph. |
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| 132 | /// |
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[626] | 133 | /// This class represents the arcs of the digraph. |
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| 134 | typedef GraphItem<'a'> Arc; |
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| 135 | |
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| 136 | /// \brief Return the source node of an arc. |
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[57] | 137 | /// |
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[626] | 138 | /// This function returns the source node of an arc. |
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| 139 | Node source(const Arc&) const { return INVALID; } |
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[57] | 140 | |
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[626] | 141 | /// \brief Return the target node of an arc. |
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[57] | 142 | /// |
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[626] | 143 | /// This function returns the target node of an arc. |
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| 144 | Node target(const Arc&) const { return INVALID; } |
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| 145 | |
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| 146 | /// \brief Return the opposite node on the given arc. |
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[57] | 147 | /// |
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[626] | 148 | /// This function returns the opposite node on the given arc. |
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[57] | 149 | Node oppositeNode(const Node&, const Arc&) const { |
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| 150 | return INVALID; |
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| 151 | } |
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| 152 | |
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| 153 | template <typename _Digraph> |
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| 154 | struct Constraints { |
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[209] | 155 | typedef typename _Digraph::Node Node; |
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| 156 | typedef typename _Digraph::Arc Arc; |
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| 157 | |
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| 158 | void constraints() { |
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| 159 | checkConcept<GraphItem<'n'>, Node>(); |
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| 160 | checkConcept<GraphItem<'a'>, Arc>(); |
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| 161 | { |
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| 162 | Node n; |
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| 163 | Arc e(INVALID); |
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| 164 | n = digraph.source(e); |
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| 165 | n = digraph.target(e); |
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[57] | 166 | n = digraph.oppositeNode(n, e); |
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[209] | 167 | } |
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| 168 | } |
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| 169 | |
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| 170 | const _Digraph& digraph; |
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[57] | 171 | }; |
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| 172 | }; |
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| 173 | |
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[626] | 174 | /// \brief Base skeleton class for undirected graphs. |
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[209] | 175 | /// |
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[626] | 176 | /// This class describes the base interface of undirected graph types. |
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| 177 | /// All graph %concepts have to conform to this class. |
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| 178 | /// It extends the interface of \ref BaseDigraphComponent with an |
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| 179 | /// \c Edge type and functions to get the end nodes of edges, |
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| 180 | /// to convert from arcs to edges and to get both direction of edges. |
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[57] | 181 | class BaseGraphComponent : public BaseDigraphComponent { |
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| 182 | public: |
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| 183 | typedef BaseDigraphComponent::Node Node; |
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| 184 | typedef BaseDigraphComponent::Arc Arc; |
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[626] | 185 | |
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| 186 | /// \brief Undirected edge class of the graph. |
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[57] | 187 | /// |
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[626] | 188 | /// This class represents the undirected edges of the graph. |
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| 189 | /// Undirected graphs can be used as directed graphs, each edge is |
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| 190 | /// represented by two opposite directed arcs. |
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| 191 | class Edge : public GraphItem<'e'> { |
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[57] | 192 | public: |
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[626] | 193 | typedef GraphItem<'e'> Parent; |
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| 194 | |
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[57] | 195 | /// \brief Default constructor. |
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[209] | 196 | /// |
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[626] | 197 | /// Default constructor. |
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[57] | 198 | /// \warning The default constructor is not required to set |
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| 199 | /// the item to some well-defined value. So you should consider it |
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| 200 | /// as uninitialized. |
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| 201 | Edge() {} |
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[626] | 202 | |
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[57] | 203 | /// \brief Copy constructor. |
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| 204 | /// |
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| 205 | /// Copy constructor. |
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[626] | 206 | Edge(const Edge &) : Parent() {} |
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| 207 | |
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| 208 | /// \brief Constructor for conversion from \c INVALID. |
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[57] | 209 | /// |
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[626] | 210 | /// Constructor for conversion from \c INVALID. |
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| 211 | /// It initializes the item to be invalid. |
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[57] | 212 | /// \sa Invalid for more details. |
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| 213 | Edge(Invalid) {} |
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[626] | 214 | |
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| 215 | /// \brief Constructor for conversion from an arc. |
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[57] | 216 | /// |
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[626] | 217 | /// Constructor for conversion from an arc. |
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[57] | 218 | /// Besides the core graph item functionality each arc should |
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[209] | 219 | /// be convertible to the represented edge. |
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[57] | 220 | Edge(const Arc&) {} |
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[626] | 221 | |
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| 222 | /// \brief Assign an arc to an edge. |
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[57] | 223 | /// |
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[626] | 224 | /// This function assigns an arc to an edge. |
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[57] | 225 | /// Besides the core graph item functionality each arc should |
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[209] | 226 | /// be convertible to the represented edge. |
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[57] | 227 | Edge& operator=(const Arc&) { return *this; } |
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| 228 | }; |
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| 229 | |
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[626] | 230 | /// \brief Return one end node of an edge. |
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| 231 | /// |
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| 232 | /// This function returns one end node of an edge. |
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| 233 | Node u(const Edge&) const { return INVALID; } |
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| 234 | |
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| 235 | /// \brief Return the other end node of an edge. |
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| 236 | /// |
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| 237 | /// This function returns the other end node of an edge. |
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| 238 | Node v(const Edge&) const { return INVALID; } |
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| 239 | |
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| 240 | /// \brief Return a directed arc related to an edge. |
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| 241 | /// |
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| 242 | /// This function returns a directed arc from its direction and the |
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| 243 | /// represented edge. |
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| 244 | Arc direct(const Edge&, bool) const { return INVALID; } |
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| 245 | |
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| 246 | /// \brief Return a directed arc related to an edge. |
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| 247 | /// |
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| 248 | /// This function returns a directed arc from its source node and the |
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| 249 | /// represented edge. |
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| 250 | Arc direct(const Edge&, const Node&) const { return INVALID; } |
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| 251 | |
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| 252 | /// \brief Return the direction of the arc. |
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[57] | 253 | /// |
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| 254 | /// Returns the direction of the arc. Each arc represents an |
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| 255 | /// edge with a direction. It gives back the |
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| 256 | /// direction. |
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| 257 | bool direction(const Arc&) const { return true; } |
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| 258 | |
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[626] | 259 | /// \brief Return the opposite arc. |
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[57] | 260 | /// |
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[626] | 261 | /// This function returns the opposite arc, i.e. the arc representing |
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| 262 | /// the same edge and has opposite direction. |
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| 263 | Arc oppositeArc(const Arc&) const { return INVALID; } |
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[209] | 264 | |
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[57] | 265 | template <typename _Graph> |
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| 266 | struct Constraints { |
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[209] | 267 | typedef typename _Graph::Node Node; |
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| 268 | typedef typename _Graph::Arc Arc; |
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| 269 | typedef typename _Graph::Edge Edge; |
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| 270 | |
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| 271 | void constraints() { |
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[57] | 272 | checkConcept<BaseDigraphComponent, _Graph>(); |
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[626] | 273 | checkConcept<GraphItem<'e'>, Edge>(); |
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[209] | 274 | { |
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| 275 | Node n; |
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| 276 | Edge ue(INVALID); |
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[57] | 277 | Arc e; |
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[209] | 278 | n = graph.u(ue); |
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| 279 | n = graph.v(ue); |
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[57] | 280 | e = graph.direct(ue, true); |
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[626] | 281 | e = graph.direct(ue, false); |
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[57] | 282 | e = graph.direct(ue, n); |
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| 283 | e = graph.oppositeArc(e); |
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| 284 | ue = e; |
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| 285 | bool d = graph.direction(e); |
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| 286 | ignore_unused_variable_warning(d); |
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[209] | 287 | } |
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| 288 | } |
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| 289 | |
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| 290 | const _Graph& graph; |
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[57] | 291 | }; |
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| 292 | |
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| 293 | }; |
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| 294 | |
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[626] | 295 | /// \brief Skeleton class for \e idable directed graphs. |
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[209] | 296 | /// |
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[626] | 297 | /// This class describes the interface of \e idable directed graphs. |
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| 298 | /// It extends \ref BaseDigraphComponent with the core ID functions. |
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| 299 | /// The ids of the items must be unique and immutable. |
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| 300 | /// This concept is part of the Digraph concept. |
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[606] | 301 | template <typename BAS = BaseDigraphComponent> |
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| 302 | class IDableDigraphComponent : public BAS { |
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[57] | 303 | public: |
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| 304 | |
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[606] | 305 | typedef BAS Base; |
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[57] | 306 | typedef typename Base::Node Node; |
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| 307 | typedef typename Base::Arc Arc; |
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| 308 | |
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[626] | 309 | /// \brief Return a unique integer id for the given node. |
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[57] | 310 | /// |
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[626] | 311 | /// This function returns a unique integer id for the given node. |
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| 312 | int id(const Node&) const { return -1; } |
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| 313 | |
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| 314 | /// \brief Return the node by its unique id. |
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[57] | 315 | /// |
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[626] | 316 | /// This function returns the node by its unique id. |
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| 317 | /// If the digraph does not contain a node with the given id, |
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| 318 | /// then the result of the function is undefined. |
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| 319 | Node nodeFromId(int) const { return INVALID; } |
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[57] | 320 | |
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[626] | 321 | /// \brief Return a unique integer id for the given arc. |
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[57] | 322 | /// |
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[626] | 323 | /// This function returns a unique integer id for the given arc. |
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| 324 | int id(const Arc&) const { return -1; } |
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[57] | 325 | |
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[626] | 326 | /// \brief Return the arc by its unique id. |
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[57] | 327 | /// |
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[626] | 328 | /// This function returns the arc by its unique id. |
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| 329 | /// If the digraph does not contain an arc with the given id, |
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| 330 | /// then the result of the function is undefined. |
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| 331 | Arc arcFromId(int) const { return INVALID; } |
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| 332 | |
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| 333 | /// \brief Return an integer greater or equal to the maximum |
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| 334 | /// node id. |
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[57] | 335 | /// |
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[626] | 336 | /// This function returns an integer greater or equal to the |
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| 337 | /// maximum node id. |
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| 338 | int maxNodeId() const { return -1; } |
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[57] | 339 | |
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[626] | 340 | /// \brief Return an integer greater or equal to the maximum |
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| 341 | /// arc id. |
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[57] | 342 | /// |
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[626] | 343 | /// This function returns an integer greater or equal to the |
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| 344 | /// maximum arc id. |
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| 345 | int maxArcId() const { return -1; } |
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[57] | 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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[209] | 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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[57] | 360 | |
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[209] | 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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[57] | 366 | |
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[209] | 367 | const _Digraph& digraph; |
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[57] | 368 | }; |
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| 369 | }; |
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| 370 | |
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[626] | 371 | /// \brief Skeleton class for \e idable undirected graphs. |
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[209] | 372 | /// |
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[626] | 373 | /// This class describes the interface of \e idable undirected |
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| 374 | /// graphs. It extends \ref IDableDigraphComponent with the core ID |
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| 375 | /// functions of undirected graphs. |
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| 376 | /// The ids of the items must be unique and immutable. |
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| 377 | /// This concept is part of the Graph concept. |
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[606] | 378 | template <typename BAS = BaseGraphComponent> |
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| 379 | class IDableGraphComponent : public IDableDigraphComponent<BAS> { |
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[57] | 380 | public: |
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| 381 | |
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[606] | 382 | typedef BAS Base; |
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[57] | 383 | typedef typename Base::Edge Edge; |
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| 384 | |
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[606] | 385 | using IDableDigraphComponent<Base>::id; |
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[57] | 386 | |
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[626] | 387 | /// \brief Return a unique integer id for the given edge. |
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[57] | 388 | /// |
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[626] | 389 | /// This function returns a unique integer id for the given edge. |
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| 390 | int id(const Edge&) const { return -1; } |
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| 391 | |
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| 392 | /// \brief Return the edge by its unique id. |
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[57] | 393 | /// |
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[626] | 394 | /// This function returns the edge by its unique id. |
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| 395 | /// If the graph does not contain an edge with the given id, |
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| 396 | /// then the result of the function is undefined. |
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| 397 | Edge edgeFromId(int) const { return INVALID; } |
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[57] | 398 | |
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[626] | 399 | /// \brief Return an integer greater or equal to the maximum |
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| 400 | /// edge id. |
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[57] | 401 | /// |
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[626] | 402 | /// This function returns an integer greater or equal to the |
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| 403 | /// maximum edge id. |
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| 404 | int maxEdgeId() const { return -1; } |
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[57] | 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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[209] | 409 | void constraints() { |
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| 410 | checkConcept<IDableDigraphComponent<Base>, _Graph >(); |
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| 411 | typename _Graph::Edge edge; |
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| 412 | int ueid = graph.id(edge); |
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| 413 | ueid = graph.id(edge); |
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| 414 | edge = graph.edgeFromId(ueid); |
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| 415 | ueid = graph.maxEdgeId(); |
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| 416 | ignore_unused_variable_warning(ueid); |
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| 417 | } |
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[57] | 418 | |
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[209] | 419 | const _Graph& graph; |
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[57] | 420 | }; |
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| 421 | }; |
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| 422 | |
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[626] | 423 | /// \brief Concept class for \c NodeIt, \c ArcIt and \c EdgeIt types. |
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[57] | 424 | /// |
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[626] | 425 | /// This class describes the concept of \c NodeIt, \c ArcIt and |
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| 426 | /// \c EdgeIt subtypes of digraph and graph types. |
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[606] | 427 | template <typename GR, typename Item> |
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| 428 | class GraphItemIt : public Item { |
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[57] | 429 | public: |
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| 430 | /// \brief Default constructor. |
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| 431 | /// |
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[626] | 432 | /// Default constructor. |
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| 433 | /// \warning The default constructor is not required to set |
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| 434 | /// the iterator to some well-defined value. So you should consider it |
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| 435 | /// as uninitialized. |
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[57] | 436 | GraphItemIt() {} |
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[626] | 437 | |
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[57] | 438 | /// \brief Copy constructor. |
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| 439 | /// |
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| 440 | /// Copy constructor. |
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[626] | 441 | GraphItemIt(const GraphItemIt& it) : Item(it) {} |
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| 442 | |
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| 443 | /// \brief Constructor that sets the iterator to the first item. |
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[57] | 444 | /// |
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[626] | 445 | /// Constructor that sets the iterator to the first item. |
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| 446 | explicit GraphItemIt(const GR&) {} |
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| 447 | |
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| 448 | /// \brief Constructor for conversion from \c INVALID. |
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[57] | 449 | /// |
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[626] | 450 | /// Constructor for conversion from \c INVALID. |
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| 451 | /// It initializes the iterator to be invalid. |
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[57] | 452 | /// \sa Invalid for more details. |
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| 453 | GraphItemIt(Invalid) {} |
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[626] | 454 | |
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| 455 | /// \brief Assignment operator. |
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[57] | 456 | /// |
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[626] | 457 | /// Assignment operator for the iterator. |
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| 458 | GraphItemIt& operator=(const GraphItemIt&) { return *this; } |
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| 459 | |
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| 460 | /// \brief Increment the iterator. |
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[57] | 461 | /// |
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[626] | 462 | /// This operator increments the iterator, i.e. assigns it to the |
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| 463 | /// next item. |
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[57] | 464 | GraphItemIt& operator++() { return *this; } |
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[626] | 465 | |
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[57] | 466 | /// \brief Equality operator |
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[209] | 467 | /// |
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[626] | 468 | /// Equality operator. |
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[57] | 469 | /// Two iterators are equal if and only if they point to the |
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| 470 | /// same object or both are invalid. |
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| 471 | bool operator==(const GraphItemIt&) const { return true;} |
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[626] | 472 | |
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[57] | 473 | /// \brief Inequality operator |
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[209] | 474 | /// |
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[626] | 475 | /// Inequality operator. |
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| 476 | /// Two iterators are equal if and only if they point to the |
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| 477 | /// same object or both are invalid. |
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[57] | 478 | bool operator!=(const GraphItemIt&) const { return true;} |
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[209] | 479 | |
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[57] | 480 | template<typename _GraphItemIt> |
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| 481 | struct Constraints { |
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[209] | 482 | void constraints() { |
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[626] | 483 | checkConcept<GraphItem<>, _GraphItemIt>(); |
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[209] | 484 | _GraphItemIt it1(g); |
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| 485 | _GraphItemIt it2; |
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[626] | 486 | _GraphItemIt it3 = it1; |
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| 487 | _GraphItemIt it4 = INVALID; |
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[57] | 488 | |
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[209] | 489 | it2 = ++it1; |
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| 490 | ++it2 = it1; |
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| 491 | ++(++it1); |
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[57] | 492 | |
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[606] | 493 | Item bi = it1; |
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[209] | 494 | bi = it2; |
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| 495 | } |
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[626] | 496 | const GR& g; |
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[57] | 497 | }; |
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| 498 | }; |
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| 499 | |
---|
[626] | 500 | /// \brief Concept class for \c InArcIt, \c OutArcIt and |
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| 501 | /// \c IncEdgeIt types. |
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[57] | 502 | /// |
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[626] | 503 | /// This class describes the concept of \c InArcIt, \c OutArcIt |
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| 504 | /// and \c IncEdgeIt subtypes of digraph and graph types. |
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| 505 | /// |
---|
| 506 | /// \note Since these iterator classes do not inherit from the same |
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| 507 | /// base class, there is an additional template parameter (selector) |
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| 508 | /// \c sel. For \c InArcIt you should instantiate it with character |
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| 509 | /// \c 'i', for \c OutArcIt with \c 'o' and for \c IncEdgeIt with \c 'e'. |
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[606] | 510 | template <typename GR, |
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| 511 | typename Item = typename GR::Arc, |
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| 512 | typename Base = typename GR::Node, |
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| 513 | char sel = '0'> |
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| 514 | class GraphIncIt : public Item { |
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[57] | 515 | public: |
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| 516 | /// \brief Default constructor. |
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| 517 | /// |
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[626] | 518 | /// Default constructor. |
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| 519 | /// \warning The default constructor is not required to set |
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| 520 | /// the iterator to some well-defined value. So you should consider it |
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| 521 | /// as uninitialized. |
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[57] | 522 | GraphIncIt() {} |
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[626] | 523 | |
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[57] | 524 | /// \brief Copy constructor. |
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| 525 | /// |
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| 526 | /// Copy constructor. |
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[626] | 527 | GraphIncIt(const GraphIncIt& it) : Item(it) {} |
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| 528 | |
---|
| 529 | /// \brief Constructor that sets the iterator to the first |
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| 530 | /// incoming or outgoing arc. |
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[57] | 531 | /// |
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[626] | 532 | /// Constructor that sets the iterator to the first arc |
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| 533 | /// incoming to or outgoing from the given node. |
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| 534 | explicit GraphIncIt(const GR&, const Base&) {} |
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| 535 | |
---|
| 536 | /// \brief Constructor for conversion from \c INVALID. |
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[57] | 537 | /// |
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[626] | 538 | /// Constructor for conversion from \c INVALID. |
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| 539 | /// It initializes the iterator to be invalid. |
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[57] | 540 | /// \sa Invalid for more details. |
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| 541 | GraphIncIt(Invalid) {} |
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[626] | 542 | |
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| 543 | /// \brief Assignment operator. |
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[57] | 544 | /// |
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[626] | 545 | /// Assignment operator for the iterator. |
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| 546 | GraphIncIt& operator=(const GraphIncIt&) { return *this; } |
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| 547 | |
---|
| 548 | /// \brief Increment the iterator. |
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[57] | 549 | /// |
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[626] | 550 | /// This operator increments the iterator, i.e. assigns it to the |
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| 551 | /// next arc incoming to or outgoing from the given node. |
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[57] | 552 | GraphIncIt& operator++() { return *this; } |
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| 553 | |
---|
| 554 | /// \brief Equality operator |
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| 555 | /// |
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[626] | 556 | /// Equality operator. |
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[57] | 557 | /// Two iterators are equal if and only if they point to the |
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| 558 | /// same object or both are invalid. |
---|
| 559 | bool operator==(const GraphIncIt&) const { return true;} |
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| 560 | |
---|
| 561 | /// \brief Inequality operator |
---|
| 562 | /// |
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[626] | 563 | /// Inequality operator. |
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| 564 | /// Two iterators are equal if and only if they point to the |
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| 565 | /// same object or both are invalid. |
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[57] | 566 | bool operator!=(const GraphIncIt&) const { return true;} |
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| 567 | |
---|
| 568 | template <typename _GraphIncIt> |
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| 569 | struct Constraints { |
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[209] | 570 | void constraints() { |
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[606] | 571 | checkConcept<GraphItem<sel>, _GraphIncIt>(); |
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[209] | 572 | _GraphIncIt it1(graph, node); |
---|
| 573 | _GraphIncIt it2; |
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[626] | 574 | _GraphIncIt it3 = it1; |
---|
| 575 | _GraphIncIt it4 = INVALID; |
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[57] | 576 | |
---|
[209] | 577 | it2 = ++it1; |
---|
| 578 | ++it2 = it1; |
---|
| 579 | ++(++it1); |
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[606] | 580 | Item e = it1; |
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[209] | 581 | e = it2; |
---|
| 582 | } |
---|
[626] | 583 | const Base& node; |
---|
| 584 | const GR& graph; |
---|
[57] | 585 | }; |
---|
| 586 | }; |
---|
| 587 | |
---|
[626] | 588 | /// \brief Skeleton class for iterable directed graphs. |
---|
[57] | 589 | /// |
---|
[626] | 590 | /// This class describes the interface of iterable directed |
---|
| 591 | /// graphs. It extends \ref BaseDigraphComponent with the core |
---|
| 592 | /// iterable interface. |
---|
[57] | 593 | /// This concept is part of the Digraph concept. |
---|
[606] | 594 | template <typename BAS = BaseDigraphComponent> |
---|
| 595 | class IterableDigraphComponent : public BAS { |
---|
[57] | 596 | |
---|
| 597 | public: |
---|
[209] | 598 | |
---|
[606] | 599 | typedef BAS Base; |
---|
[57] | 600 | typedef typename Base::Node Node; |
---|
| 601 | typedef typename Base::Arc Arc; |
---|
| 602 | |
---|
| 603 | typedef IterableDigraphComponent Digraph; |
---|
| 604 | |
---|
| 605 | /// \name Base iteration |
---|
[209] | 606 | /// |
---|
[626] | 607 | /// This interface provides functions for iteration on digraph items. |
---|
[57] | 608 | /// |
---|
[209] | 609 | /// @{ |
---|
[57] | 610 | |
---|
[626] | 611 | /// \brief Return the first node. |
---|
[209] | 612 | /// |
---|
[626] | 613 | /// This function gives back the first node in the iteration order. |
---|
[57] | 614 | void first(Node&) const {} |
---|
| 615 | |
---|
[626] | 616 | /// \brief Return the next node. |
---|
[57] | 617 | /// |
---|
[626] | 618 | /// This function gives back the next node in the iteration order. |
---|
[57] | 619 | void next(Node&) const {} |
---|
| 620 | |
---|
[626] | 621 | /// \brief Return the first arc. |
---|
[57] | 622 | /// |
---|
[626] | 623 | /// This function gives back the first arc in the iteration order. |
---|
[57] | 624 | void first(Arc&) const {} |
---|
| 625 | |
---|
[626] | 626 | /// \brief Return the next arc. |
---|
[57] | 627 | /// |
---|
[626] | 628 | /// This function gives back the next arc in the iteration order. |
---|
[57] | 629 | void next(Arc&) const {} |
---|
| 630 | |
---|
[626] | 631 | /// \brief Return the first arc incomming to the given node. |
---|
[57] | 632 | /// |
---|
[626] | 633 | /// This function gives back the first arc incomming to the |
---|
| 634 | /// given node. |
---|
[57] | 635 | void firstIn(Arc&, const Node&) const {} |
---|
| 636 | |
---|
[626] | 637 | /// \brief Return the next arc incomming to the given node. |
---|
[57] | 638 | /// |
---|
[626] | 639 | /// This function gives back the next arc incomming to the |
---|
| 640 | /// given node. |
---|
[57] | 641 | void nextIn(Arc&) const {} |
---|
| 642 | |
---|
[626] | 643 | /// \brief Return the first arc outgoing form the given node. |
---|
| 644 | /// |
---|
| 645 | /// This function gives back the first arc outgoing form the |
---|
[57] | 646 | /// given node. |
---|
| 647 | void firstOut(Arc&, const Node&) const {} |
---|
| 648 | |
---|
[626] | 649 | /// \brief Return the next arc outgoing form the given node. |
---|
[57] | 650 | /// |
---|
[626] | 651 | /// This function gives back the next arc outgoing form the |
---|
| 652 | /// given node. |
---|
[57] | 653 | void nextOut(Arc&) const {} |
---|
| 654 | |
---|
| 655 | /// @} |
---|
| 656 | |
---|
| 657 | /// \name Class based iteration |
---|
[209] | 658 | /// |
---|
[626] | 659 | /// This interface provides iterator classes for digraph items. |
---|
[57] | 660 | /// |
---|
| 661 | /// @{ |
---|
| 662 | |
---|
| 663 | /// \brief This iterator goes through each node. |
---|
| 664 | /// |
---|
| 665 | /// This iterator goes through each node. |
---|
| 666 | /// |
---|
| 667 | typedef GraphItemIt<Digraph, Node> NodeIt; |
---|
| 668 | |
---|
[626] | 669 | /// \brief This iterator goes through each arc. |
---|
[57] | 670 | /// |
---|
[626] | 671 | /// This iterator goes through each arc. |
---|
[57] | 672 | /// |
---|
| 673 | typedef GraphItemIt<Digraph, Arc> ArcIt; |
---|
| 674 | |
---|
| 675 | /// \brief This iterator goes trough the incoming arcs of a node. |
---|
| 676 | /// |
---|
[626] | 677 | /// This iterator goes trough the \e incoming arcs of a certain node |
---|
[57] | 678 | /// of a digraph. |
---|
| 679 | typedef GraphIncIt<Digraph, Arc, Node, 'i'> InArcIt; |
---|
| 680 | |
---|
| 681 | /// \brief This iterator goes trough the outgoing arcs of a node. |
---|
| 682 | /// |
---|
| 683 | /// This iterator goes trough the \e outgoing arcs of a certain node |
---|
| 684 | /// of a digraph. |
---|
| 685 | typedef GraphIncIt<Digraph, Arc, Node, 'o'> OutArcIt; |
---|
| 686 | |
---|
| 687 | /// \brief The base node of the iterator. |
---|
| 688 | /// |
---|
[626] | 689 | /// This function gives back the base node of the iterator. |
---|
| 690 | /// It is always the target node of the pointed arc. |
---|
[57] | 691 | Node baseNode(const InArcIt&) const { return INVALID; } |
---|
| 692 | |
---|
| 693 | /// \brief The running node of the iterator. |
---|
| 694 | /// |
---|
[626] | 695 | /// This function gives back the running node of the iterator. |
---|
| 696 | /// It is always the source node of the pointed arc. |
---|
[57] | 697 | Node runningNode(const InArcIt&) const { return INVALID; } |
---|
| 698 | |
---|
| 699 | /// \brief The base node of the iterator. |
---|
| 700 | /// |
---|
[626] | 701 | /// This function gives back the base node of the iterator. |
---|
| 702 | /// It is always the source node of the pointed arc. |
---|
[57] | 703 | Node baseNode(const OutArcIt&) const { return INVALID; } |
---|
| 704 | |
---|
| 705 | /// \brief The running node of the iterator. |
---|
| 706 | /// |
---|
[626] | 707 | /// This function gives back the running node of the iterator. |
---|
| 708 | /// It is always the target node of the pointed arc. |
---|
[57] | 709 | Node runningNode(const OutArcIt&) const { return INVALID; } |
---|
| 710 | |
---|
| 711 | /// @} |
---|
| 712 | |
---|
[209] | 713 | template <typename _Digraph> |
---|
[57] | 714 | struct Constraints { |
---|
[209] | 715 | void constraints() { |
---|
| 716 | checkConcept<Base, _Digraph>(); |
---|
[57] | 717 | |
---|
| 718 | { |
---|
[209] | 719 | typename _Digraph::Node node(INVALID); |
---|
[57] | 720 | typename _Digraph::Arc arc(INVALID); |
---|
| 721 | { |
---|
| 722 | digraph.first(node); |
---|
| 723 | digraph.next(node); |
---|
| 724 | } |
---|
| 725 | { |
---|
| 726 | digraph.first(arc); |
---|
| 727 | digraph.next(arc); |
---|
| 728 | } |
---|
| 729 | { |
---|
| 730 | digraph.firstIn(arc, node); |
---|
| 731 | digraph.nextIn(arc); |
---|
| 732 | } |
---|
| 733 | { |
---|
| 734 | digraph.firstOut(arc, node); |
---|
| 735 | digraph.nextOut(arc); |
---|
| 736 | } |
---|
[209] | 737 | } |
---|
[57] | 738 | |
---|
| 739 | { |
---|
| 740 | checkConcept<GraphItemIt<_Digraph, typename _Digraph::Arc>, |
---|
| 741 | typename _Digraph::ArcIt >(); |
---|
| 742 | checkConcept<GraphItemIt<_Digraph, typename _Digraph::Node>, |
---|
| 743 | typename _Digraph::NodeIt >(); |
---|
[209] | 744 | checkConcept<GraphIncIt<_Digraph, typename _Digraph::Arc, |
---|
[57] | 745 | typename _Digraph::Node, 'i'>, typename _Digraph::InArcIt>(); |
---|
[209] | 746 | checkConcept<GraphIncIt<_Digraph, typename _Digraph::Arc, |
---|
[57] | 747 | typename _Digraph::Node, 'o'>, typename _Digraph::OutArcIt>(); |
---|
| 748 | |
---|
| 749 | typename _Digraph::Node n; |
---|
[626] | 750 | const typename _Digraph::InArcIt iait(INVALID); |
---|
| 751 | const typename _Digraph::OutArcIt oait(INVALID); |
---|
| 752 | n = digraph.baseNode(iait); |
---|
| 753 | n = digraph.runningNode(iait); |
---|
| 754 | n = digraph.baseNode(oait); |
---|
| 755 | n = digraph.runningNode(oait); |
---|
[57] | 756 | ignore_unused_variable_warning(n); |
---|
| 757 | } |
---|
| 758 | } |
---|
[209] | 759 | |
---|
| 760 | const _Digraph& digraph; |
---|
[57] | 761 | }; |
---|
| 762 | }; |
---|
| 763 | |
---|
[626] | 764 | /// \brief Skeleton class for iterable undirected graphs. |
---|
[57] | 765 | /// |
---|
[626] | 766 | /// This class describes the interface of iterable undirected |
---|
| 767 | /// graphs. It extends \ref IterableDigraphComponent with the core |
---|
| 768 | /// iterable interface of undirected graphs. |
---|
[57] | 769 | /// This concept is part of the Graph concept. |
---|
[606] | 770 | template <typename BAS = BaseGraphComponent> |
---|
| 771 | class IterableGraphComponent : public IterableDigraphComponent<BAS> { |
---|
[57] | 772 | public: |
---|
| 773 | |
---|
[606] | 774 | typedef BAS Base; |
---|
[57] | 775 | typedef typename Base::Node Node; |
---|
| 776 | typedef typename Base::Arc Arc; |
---|
| 777 | typedef typename Base::Edge Edge; |
---|
| 778 | |
---|
[209] | 779 | |
---|
[57] | 780 | typedef IterableGraphComponent Graph; |
---|
| 781 | |
---|
| 782 | /// \name Base iteration |
---|
[209] | 783 | /// |
---|
[626] | 784 | /// This interface provides functions for iteration on edges. |
---|
| 785 | /// |
---|
[209] | 786 | /// @{ |
---|
[57] | 787 | |
---|
[606] | 788 | using IterableDigraphComponent<Base>::first; |
---|
| 789 | using IterableDigraphComponent<Base>::next; |
---|
[57] | 790 | |
---|
[626] | 791 | /// \brief Return the first edge. |
---|
[57] | 792 | /// |
---|
[626] | 793 | /// This function gives back the first edge in the iteration order. |
---|
[57] | 794 | void first(Edge&) const {} |
---|
| 795 | |
---|
[626] | 796 | /// \brief Return the next edge. |
---|
[57] | 797 | /// |
---|
[626] | 798 | /// This function gives back the next edge in the iteration order. |
---|
[57] | 799 | void next(Edge&) const {} |
---|
| 800 | |
---|
[626] | 801 | /// \brief Return the first edge incident to the given node. |
---|
| 802 | /// |
---|
| 803 | /// This function gives back the first edge incident to the given |
---|
| 804 | /// node. The bool parameter gives back the direction for which the |
---|
| 805 | /// source node of the directed arc representing the edge is the |
---|
[57] | 806 | /// given node. |
---|
| 807 | void firstInc(Edge&, bool&, const Node&) const {} |
---|
| 808 | |
---|
| 809 | /// \brief Gives back the next of the edges from the |
---|
| 810 | /// given node. |
---|
| 811 | /// |
---|
[626] | 812 | /// This function gives back the next edge incident to the given |
---|
| 813 | /// node. The bool parameter should be used as \c firstInc() use it. |
---|
[57] | 814 | void nextInc(Edge&, bool&) const {} |
---|
| 815 | |
---|
[606] | 816 | using IterableDigraphComponent<Base>::baseNode; |
---|
| 817 | using IterableDigraphComponent<Base>::runningNode; |
---|
[57] | 818 | |
---|
| 819 | /// @} |
---|
| 820 | |
---|
| 821 | /// \name Class based iteration |
---|
[209] | 822 | /// |
---|
[626] | 823 | /// This interface provides iterator classes for edges. |
---|
[57] | 824 | /// |
---|
| 825 | /// @{ |
---|
| 826 | |
---|
[626] | 827 | /// \brief This iterator goes through each edge. |
---|
[57] | 828 | /// |
---|
[626] | 829 | /// This iterator goes through each edge. |
---|
[57] | 830 | typedef GraphItemIt<Graph, Edge> EdgeIt; |
---|
[626] | 831 | |
---|
| 832 | /// \brief This iterator goes trough the incident edges of a |
---|
[57] | 833 | /// node. |
---|
| 834 | /// |
---|
[626] | 835 | /// This iterator goes trough the incident edges of a certain |
---|
[57] | 836 | /// node of a graph. |
---|
[626] | 837 | typedef GraphIncIt<Graph, Edge, Node, 'e'> IncEdgeIt; |
---|
| 838 | |
---|
[57] | 839 | /// \brief The base node of the iterator. |
---|
| 840 | /// |
---|
[626] | 841 | /// This function gives back the base node of the iterator. |
---|
[78] | 842 | Node baseNode(const IncEdgeIt&) const { return INVALID; } |
---|
[57] | 843 | |
---|
| 844 | /// \brief The running node of the iterator. |
---|
| 845 | /// |
---|
[626] | 846 | /// This function gives back the running node of the iterator. |
---|
[78] | 847 | Node runningNode(const IncEdgeIt&) const { return INVALID; } |
---|
[57] | 848 | |
---|
| 849 | /// @} |
---|
| 850 | |
---|
[209] | 851 | template <typename _Graph> |
---|
[57] | 852 | struct Constraints { |
---|
[209] | 853 | void constraints() { |
---|
| 854 | checkConcept<IterableDigraphComponent<Base>, _Graph>(); |
---|
[57] | 855 | |
---|
| 856 | { |
---|
| 857 | typename _Graph::Node node(INVALID); |
---|
| 858 | typename _Graph::Edge edge(INVALID); |
---|
| 859 | bool dir; |
---|
| 860 | { |
---|
| 861 | graph.first(edge); |
---|
| 862 | graph.next(edge); |
---|
| 863 | } |
---|
| 864 | { |
---|
| 865 | graph.firstInc(edge, dir, node); |
---|
| 866 | graph.nextInc(edge, dir); |
---|
| 867 | } |
---|
[209] | 868 | |
---|
| 869 | } |
---|
| 870 | |
---|
[57] | 871 | { |
---|
| 872 | checkConcept<GraphItemIt<_Graph, typename _Graph::Edge>, |
---|
| 873 | typename _Graph::EdgeIt >(); |
---|
[209] | 874 | checkConcept<GraphIncIt<_Graph, typename _Graph::Edge, |
---|
[626] | 875 | typename _Graph::Node, 'e'>, typename _Graph::IncEdgeIt>(); |
---|
[209] | 876 | |
---|
[57] | 877 | typename _Graph::Node n; |
---|
[626] | 878 | const typename _Graph::IncEdgeIt ieit(INVALID); |
---|
| 879 | n = graph.baseNode(ieit); |
---|
| 880 | n = graph.runningNode(ieit); |
---|
[57] | 881 | } |
---|
| 882 | } |
---|
[209] | 883 | |
---|
| 884 | const _Graph& graph; |
---|
[57] | 885 | }; |
---|
| 886 | }; |
---|
| 887 | |
---|
[626] | 888 | /// \brief Skeleton class for alterable directed graphs. |
---|
[209] | 889 | /// |
---|
[626] | 890 | /// This class describes the interface of alterable directed |
---|
| 891 | /// graphs. It extends \ref BaseDigraphComponent with the alteration |
---|
| 892 | /// notifier interface. It implements |
---|
[57] | 893 | /// an observer-notifier pattern for each digraph item. More |
---|
| 894 | /// obsevers can be registered into the notifier and whenever an |
---|
[626] | 895 | /// alteration occured in the digraph all the observers will be |
---|
[57] | 896 | /// notified about it. |
---|
[606] | 897 | template <typename BAS = BaseDigraphComponent> |
---|
| 898 | class AlterableDigraphComponent : public BAS { |
---|
[57] | 899 | public: |
---|
| 900 | |
---|
[606] | 901 | typedef BAS Base; |
---|
[57] | 902 | typedef typename Base::Node Node; |
---|
| 903 | typedef typename Base::Arc Arc; |
---|
| 904 | |
---|
| 905 | |
---|
[626] | 906 | /// Node alteration notifier class. |
---|
[209] | 907 | typedef AlterationNotifier<AlterableDigraphComponent, Node> |
---|
[57] | 908 | NodeNotifier; |
---|
[626] | 909 | /// Arc alteration notifier class. |
---|
[209] | 910 | typedef AlterationNotifier<AlterableDigraphComponent, Arc> |
---|
[57] | 911 | ArcNotifier; |
---|
[209] | 912 | |
---|
[626] | 913 | /// \brief Return the node alteration notifier. |
---|
[57] | 914 | /// |
---|
[626] | 915 | /// This function gives back the node alteration notifier. |
---|
[57] | 916 | NodeNotifier& notifier(Node) const { |
---|
[626] | 917 | return NodeNotifier(); |
---|
[57] | 918 | } |
---|
[209] | 919 | |
---|
[626] | 920 | /// \brief Return the arc alteration notifier. |
---|
[57] | 921 | /// |
---|
[626] | 922 | /// This function gives back the arc alteration notifier. |
---|
[57] | 923 | ArcNotifier& notifier(Arc) const { |
---|
[209] | 924 | return ArcNotifier(); |
---|
[57] | 925 | } |
---|
| 926 | |
---|
[209] | 927 | template <typename _Digraph> |
---|
[57] | 928 | struct Constraints { |
---|
[209] | 929 | void constraints() { |
---|
| 930 | checkConcept<Base, _Digraph>(); |
---|
| 931 | typename _Digraph::NodeNotifier& nn |
---|
[57] | 932 | = digraph.notifier(typename _Digraph::Node()); |
---|
| 933 | |
---|
[209] | 934 | typename _Digraph::ArcNotifier& en |
---|
[57] | 935 | = digraph.notifier(typename _Digraph::Arc()); |
---|
[209] | 936 | |
---|
[57] | 937 | ignore_unused_variable_warning(nn); |
---|
| 938 | ignore_unused_variable_warning(en); |
---|
[209] | 939 | } |
---|
| 940 | |
---|
| 941 | const _Digraph& digraph; |
---|
[57] | 942 | }; |
---|
| 943 | }; |
---|
| 944 | |
---|
[626] | 945 | /// \brief Skeleton class for alterable undirected graphs. |
---|
[209] | 946 | /// |
---|
[626] | 947 | /// This class describes the interface of alterable undirected |
---|
| 948 | /// graphs. It extends \ref AlterableDigraphComponent with the alteration |
---|
| 949 | /// notifier interface of undirected graphs. It implements |
---|
| 950 | /// an observer-notifier pattern for the edges. More |
---|
[57] | 951 | /// obsevers can be registered into the notifier and whenever an |
---|
[626] | 952 | /// alteration occured in the graph all the observers will be |
---|
[57] | 953 | /// notified about it. |
---|
[606] | 954 | template <typename BAS = BaseGraphComponent> |
---|
| 955 | class AlterableGraphComponent : public AlterableDigraphComponent<BAS> { |
---|
[57] | 956 | public: |
---|
| 957 | |
---|
[606] | 958 | typedef BAS Base; |
---|
[57] | 959 | typedef typename Base::Edge Edge; |
---|
| 960 | |
---|
| 961 | |
---|
[626] | 962 | /// Edge alteration notifier class. |
---|
[209] | 963 | typedef AlterationNotifier<AlterableGraphComponent, Edge> |
---|
[57] | 964 | EdgeNotifier; |
---|
[209] | 965 | |
---|
[626] | 966 | /// \brief Return the edge alteration notifier. |
---|
[57] | 967 | /// |
---|
[626] | 968 | /// This function gives back the edge alteration notifier. |
---|
[57] | 969 | EdgeNotifier& notifier(Edge) const { |
---|
[209] | 970 | return EdgeNotifier(); |
---|
[57] | 971 | } |
---|
| 972 | |
---|
[209] | 973 | template <typename _Graph> |
---|
[57] | 974 | struct Constraints { |
---|
[209] | 975 | void constraints() { |
---|
[626] | 976 | checkConcept<AlterableDigraphComponent<Base>, _Graph>(); |
---|
[209] | 977 | typename _Graph::EdgeNotifier& uen |
---|
[57] | 978 | = graph.notifier(typename _Graph::Edge()); |
---|
| 979 | ignore_unused_variable_warning(uen); |
---|
[209] | 980 | } |
---|
| 981 | |
---|
| 982 | const _Graph& graph; |
---|
[57] | 983 | }; |
---|
| 984 | }; |
---|
| 985 | |
---|
[626] | 986 | /// \brief Concept class for standard graph maps. |
---|
[209] | 987 | /// |
---|
[626] | 988 | /// This class describes the concept of standard graph maps, i.e. |
---|
| 989 | /// the \c NodeMap, \c ArcMap and \c EdgeMap subtypes of digraph and |
---|
| 990 | /// graph types, which can be used for associating data to graph items. |
---|
[627] | 991 | /// The standard graph maps must conform to the ReferenceMap concept. |
---|
[606] | 992 | template <typename GR, typename K, typename V> |
---|
[627] | 993 | class GraphMap : public ReferenceMap<K, V, V&, const V&> { |
---|
[57] | 994 | public: |
---|
| 995 | |
---|
[606] | 996 | typedef ReadWriteMap<K, V> Parent; |
---|
[57] | 997 | |
---|
| 998 | /// The graph type of the map. |
---|
[606] | 999 | typedef GR Graph; |
---|
[57] | 1000 | /// The key type of the map. |
---|
[606] | 1001 | typedef K Key; |
---|
[57] | 1002 | /// The value type of the map. |
---|
[606] | 1003 | typedef V Value; |
---|
[627] | 1004 | /// The reference type of the map. |
---|
| 1005 | typedef Value& Reference; |
---|
| 1006 | /// The const reference type of the map. |
---|
| 1007 | typedef const Value& ConstReference; |
---|
| 1008 | |
---|
| 1009 | // The reference map tag. |
---|
| 1010 | typedef True ReferenceMapTag; |
---|
[57] | 1011 | |
---|
| 1012 | /// \brief Construct a new map. |
---|
| 1013 | /// |
---|
| 1014 | /// Construct a new map for the graph. |
---|
| 1015 | explicit GraphMap(const Graph&) {} |
---|
| 1016 | /// \brief Construct a new map with default value. |
---|
| 1017 | /// |
---|
[626] | 1018 | /// Construct a new map for the graph and initalize the values. |
---|
[57] | 1019 | GraphMap(const Graph&, const Value&) {} |
---|
[263] | 1020 | |
---|
| 1021 | private: |
---|
[57] | 1022 | /// \brief Copy constructor. |
---|
| 1023 | /// |
---|
| 1024 | /// Copy Constructor. |
---|
| 1025 | GraphMap(const GraphMap&) : Parent() {} |
---|
[209] | 1026 | |
---|
[626] | 1027 | /// \brief Assignment operator. |
---|
[57] | 1028 | /// |
---|
[626] | 1029 | /// Assignment operator. It does not mofify the underlying graph, |
---|
[57] | 1030 | /// it just iterates on the current item set and set the map |
---|
[209] | 1031 | /// with the value returned by the assigned map. |
---|
[57] | 1032 | template <typename CMap> |
---|
[209] | 1033 | GraphMap& operator=(const CMap&) { |
---|
[57] | 1034 | checkConcept<ReadMap<Key, Value>, CMap>(); |
---|
| 1035 | return *this; |
---|
| 1036 | } |
---|
| 1037 | |
---|
[263] | 1038 | public: |
---|
[57] | 1039 | template<typename _Map> |
---|
| 1040 | struct Constraints { |
---|
[209] | 1041 | void constraints() { |
---|
[627] | 1042 | checkConcept |
---|
| 1043 | <ReferenceMap<Key, Value, Value&, const Value&>, _Map>(); |
---|
[626] | 1044 | _Map m1(g); |
---|
| 1045 | _Map m2(g,t); |
---|
| 1046 | |
---|
| 1047 | // Copy constructor |
---|
| 1048 | // _Map m3(m); |
---|
[209] | 1049 | |
---|
[626] | 1050 | // Assignment operator |
---|
[263] | 1051 | // ReadMap<Key, Value> cmap; |
---|
[626] | 1052 | // m3 = cmap; |
---|
[57] | 1053 | |
---|
[626] | 1054 | ignore_unused_variable_warning(m1); |
---|
| 1055 | ignore_unused_variable_warning(m2); |
---|
| 1056 | // ignore_unused_variable_warning(m3); |
---|
[209] | 1057 | } |
---|
[57] | 1058 | |
---|
[626] | 1059 | const _Map &m; |
---|
[209] | 1060 | const Graph &g; |
---|
| 1061 | const typename GraphMap::Value &t; |
---|
[57] | 1062 | }; |
---|
| 1063 | |
---|
| 1064 | }; |
---|
| 1065 | |
---|
[626] | 1066 | /// \brief Skeleton class for mappable directed graphs. |
---|
[57] | 1067 | /// |
---|
[626] | 1068 | /// This class describes the interface of mappable directed graphs. |
---|
| 1069 | /// It extends \ref BaseDigraphComponent with the standard digraph |
---|
| 1070 | /// map classes, namely \c NodeMap and \c ArcMap. |
---|
[57] | 1071 | /// This concept is part of the Digraph concept. |
---|
[606] | 1072 | template <typename BAS = BaseDigraphComponent> |
---|
| 1073 | class MappableDigraphComponent : public BAS { |
---|
[57] | 1074 | public: |
---|
| 1075 | |
---|
[606] | 1076 | typedef BAS Base; |
---|
[57] | 1077 | typedef typename Base::Node Node; |
---|
| 1078 | typedef typename Base::Arc Arc; |
---|
| 1079 | |
---|
| 1080 | typedef MappableDigraphComponent Digraph; |
---|
| 1081 | |
---|
[626] | 1082 | /// \brief Standard graph map for the nodes. |
---|
[57] | 1083 | /// |
---|
[626] | 1084 | /// Standard graph map for the nodes. |
---|
[627] | 1085 | /// It conforms to the ReferenceMap concept. |
---|
[606] | 1086 | template <typename V> |
---|
[626] | 1087 | class NodeMap : public GraphMap<MappableDigraphComponent, Node, V> { |
---|
[57] | 1088 | public: |
---|
[606] | 1089 | typedef GraphMap<MappableDigraphComponent, Node, V> Parent; |
---|
[57] | 1090 | |
---|
[209] | 1091 | /// \brief Construct a new map. |
---|
| 1092 | /// |
---|
| 1093 | /// Construct a new map for the digraph. |
---|
| 1094 | explicit NodeMap(const MappableDigraphComponent& digraph) |
---|
[57] | 1095 | : Parent(digraph) {} |
---|
| 1096 | |
---|
[209] | 1097 | /// \brief Construct a new map with default value. |
---|
| 1098 | /// |
---|
[626] | 1099 | /// Construct a new map for the digraph and initalize the values. |
---|
[606] | 1100 | NodeMap(const MappableDigraphComponent& digraph, const V& value) |
---|
[57] | 1101 | : Parent(digraph, value) {} |
---|
| 1102 | |
---|
[263] | 1103 | private: |
---|
[209] | 1104 | /// \brief Copy constructor. |
---|
| 1105 | /// |
---|
| 1106 | /// Copy Constructor. |
---|
| 1107 | NodeMap(const NodeMap& nm) : Parent(nm) {} |
---|
[57] | 1108 | |
---|
[626] | 1109 | /// \brief Assignment operator. |
---|
[209] | 1110 | /// |
---|
[626] | 1111 | /// Assignment operator. |
---|
[57] | 1112 | template <typename CMap> |
---|
[209] | 1113 | NodeMap& operator=(const CMap&) { |
---|
[606] | 1114 | checkConcept<ReadMap<Node, V>, CMap>(); |
---|
[57] | 1115 | return *this; |
---|
| 1116 | } |
---|
| 1117 | |
---|
| 1118 | }; |
---|
| 1119 | |
---|
[626] | 1120 | /// \brief Standard graph map for the arcs. |
---|
[57] | 1121 | /// |
---|
[626] | 1122 | /// Standard graph map for the arcs. |
---|
[627] | 1123 | /// It conforms to the ReferenceMap concept. |
---|
[606] | 1124 | template <typename V> |
---|
[626] | 1125 | class ArcMap : public GraphMap<MappableDigraphComponent, Arc, V> { |
---|
[57] | 1126 | public: |
---|
[606] | 1127 | typedef GraphMap<MappableDigraphComponent, Arc, V> Parent; |
---|
[57] | 1128 | |
---|
[209] | 1129 | /// \brief Construct a new map. |
---|
| 1130 | /// |
---|
| 1131 | /// Construct a new map for the digraph. |
---|
| 1132 | explicit ArcMap(const MappableDigraphComponent& digraph) |
---|
[57] | 1133 | : Parent(digraph) {} |
---|
| 1134 | |
---|
[209] | 1135 | /// \brief Construct a new map with default value. |
---|
| 1136 | /// |
---|
[626] | 1137 | /// Construct a new map for the digraph and initalize the values. |
---|
[606] | 1138 | ArcMap(const MappableDigraphComponent& digraph, const V& value) |
---|
[57] | 1139 | : Parent(digraph, value) {} |
---|
| 1140 | |
---|
[263] | 1141 | private: |
---|
[209] | 1142 | /// \brief Copy constructor. |
---|
| 1143 | /// |
---|
| 1144 | /// Copy Constructor. |
---|
| 1145 | ArcMap(const ArcMap& nm) : Parent(nm) {} |
---|
[57] | 1146 | |
---|
[626] | 1147 | /// \brief Assignment operator. |
---|
[209] | 1148 | /// |
---|
[626] | 1149 | /// Assignment operator. |
---|
[57] | 1150 | template <typename CMap> |
---|
[209] | 1151 | ArcMap& operator=(const CMap&) { |
---|
[606] | 1152 | checkConcept<ReadMap<Arc, V>, CMap>(); |
---|
[57] | 1153 | return *this; |
---|
| 1154 | } |
---|
| 1155 | |
---|
| 1156 | }; |
---|
| 1157 | |
---|
| 1158 | |
---|
| 1159 | template <typename _Digraph> |
---|
| 1160 | struct Constraints { |
---|
| 1161 | |
---|
[209] | 1162 | struct Dummy { |
---|
| 1163 | int value; |
---|
| 1164 | Dummy() : value(0) {} |
---|
| 1165 | Dummy(int _v) : value(_v) {} |
---|
| 1166 | }; |
---|
[57] | 1167 | |
---|
[209] | 1168 | void constraints() { |
---|
| 1169 | checkConcept<Base, _Digraph>(); |
---|
| 1170 | { // int map test |
---|
| 1171 | typedef typename _Digraph::template NodeMap<int> IntNodeMap; |
---|
| 1172 | checkConcept<GraphMap<_Digraph, typename _Digraph::Node, int>, |
---|
| 1173 | IntNodeMap >(); |
---|
| 1174 | } { // bool map test |
---|
| 1175 | typedef typename _Digraph::template NodeMap<bool> BoolNodeMap; |
---|
| 1176 | checkConcept<GraphMap<_Digraph, typename _Digraph::Node, bool>, |
---|
| 1177 | BoolNodeMap >(); |
---|
| 1178 | } { // Dummy map test |
---|
| 1179 | typedef typename _Digraph::template NodeMap<Dummy> DummyNodeMap; |
---|
| 1180 | checkConcept<GraphMap<_Digraph, typename _Digraph::Node, Dummy>, |
---|
| 1181 | DummyNodeMap >(); |
---|
| 1182 | } |
---|
[57] | 1183 | |
---|
[209] | 1184 | { // int map test |
---|
| 1185 | typedef typename _Digraph::template ArcMap<int> IntArcMap; |
---|
| 1186 | checkConcept<GraphMap<_Digraph, typename _Digraph::Arc, int>, |
---|
| 1187 | IntArcMap >(); |
---|
| 1188 | } { // bool map test |
---|
| 1189 | typedef typename _Digraph::template ArcMap<bool> BoolArcMap; |
---|
| 1190 | checkConcept<GraphMap<_Digraph, typename _Digraph::Arc, bool>, |
---|
| 1191 | BoolArcMap >(); |
---|
| 1192 | } { // Dummy map test |
---|
| 1193 | typedef typename _Digraph::template ArcMap<Dummy> DummyArcMap; |
---|
| 1194 | checkConcept<GraphMap<_Digraph, typename _Digraph::Arc, Dummy>, |
---|
| 1195 | DummyArcMap >(); |
---|
| 1196 | } |
---|
| 1197 | } |
---|
[57] | 1198 | |
---|
[626] | 1199 | const _Digraph& digraph; |
---|
[57] | 1200 | }; |
---|
| 1201 | }; |
---|
| 1202 | |
---|
[626] | 1203 | /// \brief Skeleton class for mappable undirected graphs. |
---|
[57] | 1204 | /// |
---|
[626] | 1205 | /// This class describes the interface of mappable undirected graphs. |
---|
| 1206 | /// It extends \ref MappableDigraphComponent with the standard graph |
---|
| 1207 | /// map class for edges (\c EdgeMap). |
---|
[57] | 1208 | /// This concept is part of the Graph concept. |
---|
[606] | 1209 | template <typename BAS = BaseGraphComponent> |
---|
| 1210 | class MappableGraphComponent : public MappableDigraphComponent<BAS> { |
---|
[57] | 1211 | public: |
---|
| 1212 | |
---|
[606] | 1213 | typedef BAS Base; |
---|
[57] | 1214 | typedef typename Base::Edge Edge; |
---|
| 1215 | |
---|
| 1216 | typedef MappableGraphComponent Graph; |
---|
| 1217 | |
---|
[626] | 1218 | /// \brief Standard graph map for the edges. |
---|
[57] | 1219 | /// |
---|
[626] | 1220 | /// Standard graph map for the edges. |
---|
[627] | 1221 | /// It conforms to the ReferenceMap concept. |
---|
[606] | 1222 | template <typename V> |
---|
[626] | 1223 | class EdgeMap : public GraphMap<MappableGraphComponent, Edge, V> { |
---|
[57] | 1224 | public: |
---|
[606] | 1225 | typedef GraphMap<MappableGraphComponent, Edge, V> Parent; |
---|
[57] | 1226 | |
---|
[209] | 1227 | /// \brief Construct a new map. |
---|
| 1228 | /// |
---|
| 1229 | /// Construct a new map for the graph. |
---|
| 1230 | explicit EdgeMap(const MappableGraphComponent& graph) |
---|
[57] | 1231 | : Parent(graph) {} |
---|
| 1232 | |
---|
[209] | 1233 | /// \brief Construct a new map with default value. |
---|
| 1234 | /// |
---|
[626] | 1235 | /// Construct a new map for the graph and initalize the values. |
---|
[606] | 1236 | EdgeMap(const MappableGraphComponent& graph, const V& value) |
---|
[57] | 1237 | : Parent(graph, value) {} |
---|
| 1238 | |
---|
[263] | 1239 | private: |
---|
[209] | 1240 | /// \brief Copy constructor. |
---|
| 1241 | /// |
---|
| 1242 | /// Copy Constructor. |
---|
| 1243 | EdgeMap(const EdgeMap& nm) : Parent(nm) {} |
---|
[57] | 1244 | |
---|
[626] | 1245 | /// \brief Assignment operator. |
---|
[209] | 1246 | /// |
---|
[626] | 1247 | /// Assignment operator. |
---|
[57] | 1248 | template <typename CMap> |
---|
[209] | 1249 | EdgeMap& operator=(const CMap&) { |
---|
[606] | 1250 | checkConcept<ReadMap<Edge, V>, CMap>(); |
---|
[57] | 1251 | return *this; |
---|
| 1252 | } |
---|
| 1253 | |
---|
| 1254 | }; |
---|
| 1255 | |
---|
| 1256 | |
---|
| 1257 | template <typename _Graph> |
---|
| 1258 | struct Constraints { |
---|
| 1259 | |
---|
[209] | 1260 | struct Dummy { |
---|
| 1261 | int value; |
---|
| 1262 | Dummy() : value(0) {} |
---|
| 1263 | Dummy(int _v) : value(_v) {} |
---|
| 1264 | }; |
---|
[57] | 1265 | |
---|
[209] | 1266 | void constraints() { |
---|
[626] | 1267 | checkConcept<MappableDigraphComponent<Base>, _Graph>(); |
---|
[57] | 1268 | |
---|
[209] | 1269 | { // int map test |
---|
| 1270 | typedef typename _Graph::template EdgeMap<int> IntEdgeMap; |
---|
| 1271 | checkConcept<GraphMap<_Graph, typename _Graph::Edge, int>, |
---|
| 1272 | IntEdgeMap >(); |
---|
| 1273 | } { // bool map test |
---|
| 1274 | typedef typename _Graph::template EdgeMap<bool> BoolEdgeMap; |
---|
| 1275 | checkConcept<GraphMap<_Graph, typename _Graph::Edge, bool>, |
---|
| 1276 | BoolEdgeMap >(); |
---|
| 1277 | } { // Dummy map test |
---|
| 1278 | typedef typename _Graph::template EdgeMap<Dummy> DummyEdgeMap; |
---|
| 1279 | checkConcept<GraphMap<_Graph, typename _Graph::Edge, Dummy>, |
---|
| 1280 | DummyEdgeMap >(); |
---|
| 1281 | } |
---|
| 1282 | } |
---|
[57] | 1283 | |
---|
[626] | 1284 | const _Graph& graph; |
---|
[57] | 1285 | }; |
---|
| 1286 | }; |
---|
| 1287 | |
---|
[626] | 1288 | /// \brief Skeleton class for extendable directed graphs. |
---|
[57] | 1289 | /// |
---|
[626] | 1290 | /// This class describes the interface of extendable directed graphs. |
---|
| 1291 | /// It extends \ref BaseDigraphComponent with functions for adding |
---|
| 1292 | /// nodes and arcs to the digraph. |
---|
| 1293 | /// This concept requires \ref AlterableDigraphComponent. |
---|
[606] | 1294 | template <typename BAS = BaseDigraphComponent> |
---|
| 1295 | class ExtendableDigraphComponent : public BAS { |
---|
[57] | 1296 | public: |
---|
[606] | 1297 | typedef BAS Base; |
---|
[57] | 1298 | |
---|
[606] | 1299 | typedef typename Base::Node Node; |
---|
| 1300 | typedef typename Base::Arc Arc; |
---|
[57] | 1301 | |
---|
[626] | 1302 | /// \brief Add a new node to the digraph. |
---|
[57] | 1303 | /// |
---|
[626] | 1304 | /// This function adds a new node to the digraph. |
---|
[57] | 1305 | Node addNode() { |
---|
[209] | 1306 | return INVALID; |
---|
[57] | 1307 | } |
---|
[209] | 1308 | |
---|
[626] | 1309 | /// \brief Add a new arc connecting the given two nodes. |
---|
[57] | 1310 | /// |
---|
[626] | 1311 | /// This function adds a new arc connecting the given two nodes |
---|
| 1312 | /// of the digraph. |
---|
[57] | 1313 | Arc addArc(const Node&, const Node&) { |
---|
[209] | 1314 | return INVALID; |
---|
[57] | 1315 | } |
---|
| 1316 | |
---|
| 1317 | template <typename _Digraph> |
---|
| 1318 | struct Constraints { |
---|
[209] | 1319 | void constraints() { |
---|
[57] | 1320 | checkConcept<Base, _Digraph>(); |
---|
[209] | 1321 | typename _Digraph::Node node_a, node_b; |
---|
| 1322 | node_a = digraph.addNode(); |
---|
| 1323 | node_b = digraph.addNode(); |
---|
| 1324 | typename _Digraph::Arc arc; |
---|
| 1325 | arc = digraph.addArc(node_a, node_b); |
---|
| 1326 | } |
---|
[57] | 1327 | |
---|
[209] | 1328 | _Digraph& digraph; |
---|
[57] | 1329 | }; |
---|
| 1330 | }; |
---|
| 1331 | |
---|
[626] | 1332 | /// \brief Skeleton class for extendable undirected graphs. |
---|
[57] | 1333 | /// |
---|
[626] | 1334 | /// This class describes the interface of extendable undirected graphs. |
---|
| 1335 | /// It extends \ref BaseGraphComponent with functions for adding |
---|
| 1336 | /// nodes and edges to the graph. |
---|
| 1337 | /// This concept requires \ref AlterableGraphComponent. |
---|
[606] | 1338 | template <typename BAS = BaseGraphComponent> |
---|
| 1339 | class ExtendableGraphComponent : public BAS { |
---|
[57] | 1340 | public: |
---|
| 1341 | |
---|
[606] | 1342 | typedef BAS Base; |
---|
| 1343 | typedef typename Base::Node Node; |
---|
| 1344 | typedef typename Base::Edge Edge; |
---|
[57] | 1345 | |
---|
[626] | 1346 | /// \brief Add a new node to the digraph. |
---|
[57] | 1347 | /// |
---|
[626] | 1348 | /// This function adds a new node to the digraph. |
---|
[57] | 1349 | Node addNode() { |
---|
[209] | 1350 | return INVALID; |
---|
[57] | 1351 | } |
---|
[209] | 1352 | |
---|
[626] | 1353 | /// \brief Add a new edge connecting the given two nodes. |
---|
[57] | 1354 | /// |
---|
[626] | 1355 | /// This function adds a new edge connecting the given two nodes |
---|
| 1356 | /// of the graph. |
---|
| 1357 | Edge addEdge(const Node&, const Node&) { |
---|
[209] | 1358 | return INVALID; |
---|
[57] | 1359 | } |
---|
| 1360 | |
---|
| 1361 | template <typename _Graph> |
---|
| 1362 | struct Constraints { |
---|
[209] | 1363 | void constraints() { |
---|
| 1364 | checkConcept<Base, _Graph>(); |
---|
| 1365 | typename _Graph::Node node_a, node_b; |
---|
| 1366 | node_a = graph.addNode(); |
---|
| 1367 | node_b = graph.addNode(); |
---|
| 1368 | typename _Graph::Edge edge; |
---|
| 1369 | edge = graph.addEdge(node_a, node_b); |
---|
| 1370 | } |
---|
[57] | 1371 | |
---|
[209] | 1372 | _Graph& graph; |
---|
[57] | 1373 | }; |
---|
| 1374 | }; |
---|
| 1375 | |
---|
[626] | 1376 | /// \brief Skeleton class for erasable directed graphs. |
---|
[209] | 1377 | /// |
---|
[626] | 1378 | /// This class describes the interface of erasable directed graphs. |
---|
| 1379 | /// It extends \ref BaseDigraphComponent with functions for removing |
---|
| 1380 | /// nodes and arcs from the digraph. |
---|
| 1381 | /// This concept requires \ref AlterableDigraphComponent. |
---|
[606] | 1382 | template <typename BAS = BaseDigraphComponent> |
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| 1383 | class ErasableDigraphComponent : public BAS { |
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[57] | 1384 | public: |
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| 1385 | |
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[606] | 1386 | typedef BAS Base; |
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[57] | 1387 | typedef typename Base::Node Node; |
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| 1388 | typedef typename Base::Arc Arc; |
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| 1389 | |
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| 1390 | /// \brief Erase a node from the digraph. |
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| 1391 | /// |
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[626] | 1392 | /// This function erases the given node from the digraph and all arcs |
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| 1393 | /// connected to the node. |
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[209] | 1394 | void erase(const Node&) {} |
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[57] | 1395 | |
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| 1396 | /// \brief Erase an arc from the digraph. |
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| 1397 | /// |
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[626] | 1398 | /// This function erases the given arc from the digraph. |
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[57] | 1399 | void erase(const Arc&) {} |
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| 1400 | |
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| 1401 | template <typename _Digraph> |
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| 1402 | struct Constraints { |
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[209] | 1403 | void constraints() { |
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[57] | 1404 | checkConcept<Base, _Digraph>(); |
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[626] | 1405 | const typename _Digraph::Node node(INVALID); |
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[209] | 1406 | digraph.erase(node); |
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[626] | 1407 | const typename _Digraph::Arc arc(INVALID); |
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[209] | 1408 | digraph.erase(arc); |
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| 1409 | } |
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[57] | 1410 | |
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[209] | 1411 | _Digraph& digraph; |
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[57] | 1412 | }; |
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| 1413 | }; |
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| 1414 | |
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[626] | 1415 | /// \brief Skeleton class for erasable undirected graphs. |
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[209] | 1416 | /// |
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[626] | 1417 | /// This class describes the interface of erasable undirected graphs. |
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| 1418 | /// It extends \ref BaseGraphComponent with functions for removing |
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| 1419 | /// nodes and edges from the graph. |
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| 1420 | /// This concept requires \ref AlterableGraphComponent. |
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[606] | 1421 | template <typename BAS = BaseGraphComponent> |
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| 1422 | class ErasableGraphComponent : public BAS { |
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[57] | 1423 | public: |
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| 1424 | |
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[606] | 1425 | typedef BAS Base; |
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[57] | 1426 | typedef typename Base::Node Node; |
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| 1427 | typedef typename Base::Edge Edge; |
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| 1428 | |
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| 1429 | /// \brief Erase a node from the graph. |
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| 1430 | /// |
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[626] | 1431 | /// This function erases the given node from the graph and all edges |
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| 1432 | /// connected to the node. |
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[209] | 1433 | void erase(const Node&) {} |
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[57] | 1434 | |
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[626] | 1435 | /// \brief Erase an edge from the digraph. |
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[57] | 1436 | /// |
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[626] | 1437 | /// This function erases the given edge from the digraph. |
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[57] | 1438 | void erase(const Edge&) {} |
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| 1439 | |
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| 1440 | template <typename _Graph> |
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| 1441 | struct Constraints { |
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[209] | 1442 | void constraints() { |
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[57] | 1443 | checkConcept<Base, _Graph>(); |
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[626] | 1444 | const typename _Graph::Node node(INVALID); |
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[209] | 1445 | graph.erase(node); |
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[626] | 1446 | const typename _Graph::Edge edge(INVALID); |
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[209] | 1447 | graph.erase(edge); |
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| 1448 | } |
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[57] | 1449 | |
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[209] | 1450 | _Graph& graph; |
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[57] | 1451 | }; |
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| 1452 | }; |
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| 1453 | |
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[626] | 1454 | /// \brief Skeleton class for clearable directed graphs. |
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[57] | 1455 | /// |
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[626] | 1456 | /// This class describes the interface of clearable directed graphs. |
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| 1457 | /// It extends \ref BaseDigraphComponent with a function for clearing |
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| 1458 | /// the digraph. |
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| 1459 | /// This concept requires \ref AlterableDigraphComponent. |
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[606] | 1460 | template <typename BAS = BaseDigraphComponent> |
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| 1461 | class ClearableDigraphComponent : public BAS { |
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[57] | 1462 | public: |
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| 1463 | |
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[606] | 1464 | typedef BAS Base; |
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[57] | 1465 | |
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| 1466 | /// \brief Erase all nodes and arcs from the digraph. |
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| 1467 | /// |
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[626] | 1468 | /// This function erases all nodes and arcs from the digraph. |
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[209] | 1469 | void clear() {} |
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[57] | 1470 | |
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| 1471 | template <typename _Digraph> |
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| 1472 | struct Constraints { |
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[209] | 1473 | void constraints() { |
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[57] | 1474 | checkConcept<Base, _Digraph>(); |
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[209] | 1475 | digraph.clear(); |
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| 1476 | } |
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[57] | 1477 | |
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[626] | 1478 | _Digraph& digraph; |
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[57] | 1479 | }; |
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| 1480 | }; |
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| 1481 | |
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[626] | 1482 | /// \brief Skeleton class for clearable undirected graphs. |
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[57] | 1483 | /// |
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[626] | 1484 | /// This class describes the interface of clearable undirected graphs. |
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| 1485 | /// It extends \ref BaseGraphComponent with a function for clearing |
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| 1486 | /// the graph. |
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| 1487 | /// This concept requires \ref AlterableGraphComponent. |
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[606] | 1488 | template <typename BAS = BaseGraphComponent> |
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| 1489 | class ClearableGraphComponent : public ClearableDigraphComponent<BAS> { |
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[57] | 1490 | public: |
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| 1491 | |
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[606] | 1492 | typedef BAS Base; |
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[57] | 1493 | |
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[626] | 1494 | /// \brief Erase all nodes and edges from the graph. |
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| 1495 | /// |
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| 1496 | /// This function erases all nodes and edges from the graph. |
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| 1497 | void clear() {} |
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| 1498 | |
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[57] | 1499 | template <typename _Graph> |
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| 1500 | struct Constraints { |
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[209] | 1501 | void constraints() { |
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[626] | 1502 | checkConcept<Base, _Graph>(); |
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| 1503 | graph.clear(); |
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[209] | 1504 | } |
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[57] | 1505 | |
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[626] | 1506 | _Graph& graph; |
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[57] | 1507 | }; |
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| 1508 | }; |
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| 1509 | |
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| 1510 | } |
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| 1511 | |
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| 1512 | } |
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| 1513 | |
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| 1514 | #endif |
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