1 | /* -*- C++ -*- |
---|
2 | * lemon/concept/graph.h - Part of LEMON, a generic C++ optimization library |
---|
3 | * |
---|
4 | * Copyright (C) 2005 Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport |
---|
5 | * (Egervary Research Group on Combinatorial Optimization, EGRES). |
---|
6 | * |
---|
7 | * Permission to use, modify and distribute this software is granted |
---|
8 | * provided that this copyright notice appears in all copies. For |
---|
9 | * precise terms see the accompanying LICENSE file. |
---|
10 | * |
---|
11 | * This software is provided "AS IS" with no warranty of any kind, |
---|
12 | * express or implied, and with no claim as to its suitability for any |
---|
13 | * purpose. |
---|
14 | * |
---|
15 | */ |
---|
16 | |
---|
17 | #ifndef LEMON_CONCEPT_SYM_GRAPH_H |
---|
18 | #define LEMON_CONCEPT_SYM_GRAPH_H |
---|
19 | |
---|
20 | ///\ingroup concept |
---|
21 | ///\file |
---|
22 | ///\brief Declaration of SymGraph. |
---|
23 | |
---|
24 | #include <lemon/invalid.h> |
---|
25 | #include <lemon/concept/graph.h> |
---|
26 | #include <lemon/concept/maps.h> |
---|
27 | |
---|
28 | namespace lemon { |
---|
29 | namespace concept { |
---|
30 | |
---|
31 | /// \addtogroup concept |
---|
32 | /// @{ |
---|
33 | |
---|
34 | /// An empty static graph class. |
---|
35 | |
---|
36 | /// This class provides all the common features of a symmetric |
---|
37 | /// graph structure, however completely without implementations and |
---|
38 | /// real data structures behind the interface. |
---|
39 | /// All graph algorithms should compile with this class, but they will not |
---|
40 | /// run properly, of course. |
---|
41 | /// |
---|
42 | /// It can be used for checking the interface compatibility, |
---|
43 | /// or it can serve as a skeleton of a new symmetric graph structure. |
---|
44 | /// |
---|
45 | /// Also, you will find here the full documentation of graph |
---|
46 | /// features, the documentation of a real symmetric graph imlementation |
---|
47 | /// like @ref SymListGraph or |
---|
48 | /// @ref lemon::SymSmartGraph will just refer to this structure. |
---|
49 | class StaticSymGraph |
---|
50 | { |
---|
51 | public: |
---|
52 | /// Defalult constructor. |
---|
53 | |
---|
54 | /// Default constructor. |
---|
55 | /// |
---|
56 | StaticSymGraph() { } |
---|
57 | // ///Copy consructor. |
---|
58 | |
---|
59 | // ///\todo It is not clear, what we expect from a copy constructor. |
---|
60 | // ///E.g. How to assign the nodes/edges to each other? What about maps? |
---|
61 | // StaticGraph(const StaticGraph& g) { } |
---|
62 | |
---|
63 | /// The base type of node iterators, |
---|
64 | /// or in other words, the trivial node iterator. |
---|
65 | |
---|
66 | /// This is the base type of each node iterator, |
---|
67 | /// thus each kind of node iterator converts to this. |
---|
68 | /// More precisely each kind of node iterator should be inherited |
---|
69 | /// from the trivial node iterator. |
---|
70 | class Node { |
---|
71 | public: |
---|
72 | /// Default constructor |
---|
73 | |
---|
74 | /// @warning The default constructor sets the iterator |
---|
75 | /// to an undefined value. |
---|
76 | Node() { } |
---|
77 | /// Copy constructor. |
---|
78 | |
---|
79 | /// Copy constructor. |
---|
80 | /// |
---|
81 | Node(const Node&) { } |
---|
82 | |
---|
83 | /// Invalid constructor \& conversion. |
---|
84 | |
---|
85 | /// This constructor initializes the iterator to be invalid. |
---|
86 | /// \sa Invalid for more details. |
---|
87 | Node(Invalid) { } |
---|
88 | /// Equality operator |
---|
89 | |
---|
90 | /// Two iterators are equal if and only if they point to the |
---|
91 | /// same object or both are invalid. |
---|
92 | bool operator==(Node) const { return true; } |
---|
93 | |
---|
94 | /// Inequality operator |
---|
95 | |
---|
96 | /// \sa operator==(Node) |
---|
97 | /// |
---|
98 | bool operator!=(Node) const { return true; } |
---|
99 | |
---|
100 | ///Comparison operator. |
---|
101 | |
---|
102 | ///This is a strict ordering between the nodes. |
---|
103 | /// |
---|
104 | ///This ordering can be different from the order in which NodeIt |
---|
105 | ///goes through the nodes. |
---|
106 | ///\todo Possibly we don't need it. |
---|
107 | bool operator<(Node) const { return true; } |
---|
108 | }; |
---|
109 | |
---|
110 | /// This iterator goes through each node. |
---|
111 | |
---|
112 | /// This iterator goes through each node. |
---|
113 | /// Its usage is quite simple, for example you can count the number |
---|
114 | /// of nodes in graph \c g of type \c Graph like this: |
---|
115 | /// \code |
---|
116 | /// int count=0; |
---|
117 | /// for (Graph::NodeIt n(g); n!=INVALID; ++n) ++count; |
---|
118 | /// \endcode |
---|
119 | class NodeIt : public Node { |
---|
120 | public: |
---|
121 | /// Default constructor |
---|
122 | |
---|
123 | /// @warning The default constructor sets the iterator |
---|
124 | /// to an undefined value. |
---|
125 | NodeIt() { } |
---|
126 | /// Copy constructor. |
---|
127 | |
---|
128 | /// Copy constructor. |
---|
129 | /// |
---|
130 | NodeIt(const NodeIt&) { } |
---|
131 | /// Invalid constructor \& conversion. |
---|
132 | |
---|
133 | /// Initialize the iterator to be invalid. |
---|
134 | /// \sa Invalid for more details. |
---|
135 | NodeIt(Invalid) { } |
---|
136 | /// Sets the iterator to the first node. |
---|
137 | |
---|
138 | /// Sets the iterator to the first node of \c g. |
---|
139 | /// |
---|
140 | NodeIt(const StaticSymGraph& g) { } |
---|
141 | /// Node -> NodeIt conversion. |
---|
142 | |
---|
143 | /// Sets the iterator to the node of \c g pointed by the trivial |
---|
144 | /// iterator \c n. |
---|
145 | /// This feature necessitates that each time we |
---|
146 | /// iterate the node-set, the iteration order is the same. |
---|
147 | NodeIt(const StaticSymGraph& g, const Node& n) { } |
---|
148 | /// Next node. |
---|
149 | |
---|
150 | /// Assign the iterator to the next node. |
---|
151 | /// |
---|
152 | NodeIt& operator++() { return *this; } |
---|
153 | }; |
---|
154 | |
---|
155 | |
---|
156 | /// The base type of the symmetric edge iterators. |
---|
157 | |
---|
158 | /// The base type of the symmetric edge iterators. |
---|
159 | /// |
---|
160 | class SymEdge { |
---|
161 | public: |
---|
162 | /// Default constructor |
---|
163 | |
---|
164 | /// @warning The default constructor sets the iterator |
---|
165 | /// to an undefined value. |
---|
166 | SymEdge() { } |
---|
167 | /// Copy constructor. |
---|
168 | |
---|
169 | /// Copy constructor. |
---|
170 | /// |
---|
171 | SymEdge(const SymEdge&) { } |
---|
172 | /// Initialize the iterator to be invalid. |
---|
173 | |
---|
174 | /// Initialize the iterator to be invalid. |
---|
175 | /// |
---|
176 | SymEdge(Invalid) { } |
---|
177 | /// Equality operator |
---|
178 | |
---|
179 | /// Two iterators are equal if and only if they point to the |
---|
180 | /// same object or both are invalid. |
---|
181 | bool operator==(SymEdge) const { return true; } |
---|
182 | /// Inequality operator |
---|
183 | |
---|
184 | /// \sa operator==(Node n) |
---|
185 | /// |
---|
186 | bool operator!=(SymEdge) const { return true; } |
---|
187 | ///Comparison operator. |
---|
188 | |
---|
189 | ///This is a strict ordering between the nodes. |
---|
190 | /// |
---|
191 | ///This ordering can be different from the order in which NodeIt |
---|
192 | ///goes through the nodes. |
---|
193 | ///\todo Possibly we don't need it. |
---|
194 | bool operator<(SymEdge) const { return true; } |
---|
195 | }; |
---|
196 | |
---|
197 | |
---|
198 | /// The base type of the edge iterators. |
---|
199 | |
---|
200 | /// The base type of the edge iterators. |
---|
201 | /// |
---|
202 | class Edge : public SymEdge { |
---|
203 | public: |
---|
204 | /// Default constructor |
---|
205 | |
---|
206 | /// @warning The default constructor sets the iterator |
---|
207 | /// to an undefined value. |
---|
208 | Edge() { } |
---|
209 | /// Copy constructor. |
---|
210 | |
---|
211 | /// Copy constructor. |
---|
212 | /// |
---|
213 | Edge(const Edge&) { } |
---|
214 | /// Initialize the iterator to be invalid. |
---|
215 | |
---|
216 | /// Initialize the iterator to be invalid. |
---|
217 | /// |
---|
218 | Edge(Invalid) { } |
---|
219 | /// Equality operator |
---|
220 | |
---|
221 | /// Two iterators are equal if and only if they point to the |
---|
222 | /// same object or both are invalid. |
---|
223 | bool operator==(Edge) const { return true; } |
---|
224 | /// Inequality operator |
---|
225 | |
---|
226 | /// \sa operator==(Node n) |
---|
227 | /// |
---|
228 | bool operator!=(Edge) const { return true; } |
---|
229 | ///Comparison operator. |
---|
230 | |
---|
231 | ///This is a strict ordering between the nodes. |
---|
232 | /// |
---|
233 | ///This ordering can be different from the order in which NodeIt |
---|
234 | ///goes through the nodes. |
---|
235 | ///\todo Possibly we don't need it. |
---|
236 | bool operator<(Edge) const { return true; } |
---|
237 | }; |
---|
238 | |
---|
239 | /// This iterator goes trough the outgoing edges of a node. |
---|
240 | |
---|
241 | /// This iterator goes trough the \e outgoing edges of a certain node |
---|
242 | /// of a graph. |
---|
243 | /// Its usage is quite simple, for example you can count the number |
---|
244 | /// of outgoing edges of a node \c n |
---|
245 | /// in graph \c g of type \c Graph as follows. |
---|
246 | /// \code |
---|
247 | /// int count=0; |
---|
248 | /// for (Graph::OutEdgeIt e(g, n); e!=INVALID; ++e) ++count; |
---|
249 | /// \endcode |
---|
250 | |
---|
251 | class OutEdgeIt : public Edge { |
---|
252 | public: |
---|
253 | /// Default constructor |
---|
254 | |
---|
255 | /// @warning The default constructor sets the iterator |
---|
256 | /// to an undefined value. |
---|
257 | OutEdgeIt() { } |
---|
258 | /// Copy constructor. |
---|
259 | |
---|
260 | /// Copy constructor. |
---|
261 | /// |
---|
262 | OutEdgeIt(const OutEdgeIt&) { } |
---|
263 | /// Initialize the iterator to be invalid. |
---|
264 | |
---|
265 | /// Initialize the iterator to be invalid. |
---|
266 | /// |
---|
267 | OutEdgeIt(Invalid) { } |
---|
268 | /// This constructor sets the iterator to first outgoing edge. |
---|
269 | |
---|
270 | /// This constructor sets the iterator to the first outgoing edge of |
---|
271 | /// the node |
---|
272 | ///@param n the node |
---|
273 | ///@param g the graph |
---|
274 | OutEdgeIt(const StaticSymGraph& g, const Node& n) { } |
---|
275 | /// Edge -> OutEdgeIt conversion |
---|
276 | |
---|
277 | /// Sets the iterator to the value of the trivial iterator \c e. |
---|
278 | /// This feature necessitates that each time we |
---|
279 | /// iterate the edge-set, the iteration order is the same. |
---|
280 | OutEdgeIt(const StaticSymGraph& g, const Edge& e) { } |
---|
281 | ///Next outgoing edge |
---|
282 | |
---|
283 | /// Assign the iterator to the next |
---|
284 | /// outgoing edge of the corresponding node. |
---|
285 | OutEdgeIt& operator++() { return *this; } |
---|
286 | }; |
---|
287 | |
---|
288 | /// This iterator goes trough the incoming edges of a node. |
---|
289 | |
---|
290 | /// This iterator goes trough the \e incoming edges of a certain node |
---|
291 | /// of a graph. |
---|
292 | /// Its usage is quite simple, for example you can count the number |
---|
293 | /// of outgoing edges of a node \c n |
---|
294 | /// in graph \c g of type \c Graph as follows. |
---|
295 | /// \code |
---|
296 | /// int count=0; |
---|
297 | /// for(Graph::InEdgeIt e(g, n); e!=INVALID; ++e) ++count; |
---|
298 | /// \endcode |
---|
299 | |
---|
300 | class InEdgeIt : public Edge { |
---|
301 | public: |
---|
302 | /// Default constructor |
---|
303 | |
---|
304 | /// @warning The default constructor sets the iterator |
---|
305 | /// to an undefined value. |
---|
306 | InEdgeIt() { } |
---|
307 | /// Copy constructor. |
---|
308 | |
---|
309 | /// Copy constructor. |
---|
310 | /// |
---|
311 | InEdgeIt(const InEdgeIt&) { } |
---|
312 | /// Initialize the iterator to be invalid. |
---|
313 | |
---|
314 | /// Initialize the iterator to be invalid. |
---|
315 | /// |
---|
316 | InEdgeIt(Invalid) { } |
---|
317 | /// This constructor sets the iterator to first incoming edge. |
---|
318 | |
---|
319 | /// This constructor sets the iterator to the first incoming edge of |
---|
320 | /// the node |
---|
321 | ///@param n the node |
---|
322 | ///@param g the graph |
---|
323 | InEdgeIt(const StaticSymGraph& g, const Node& n) { } |
---|
324 | /// Edge -> InEdgeIt conversion |
---|
325 | |
---|
326 | /// Sets the iterator to the value of the trivial iterator \c e. |
---|
327 | /// This feature necessitates that each time we |
---|
328 | /// iterate the edge-set, the iteration order is the same. |
---|
329 | InEdgeIt(const StaticSymGraph& g, const Edge& n) { } |
---|
330 | /// Next incoming edge |
---|
331 | |
---|
332 | /// Assign the iterator to the next inedge of the corresponding node. |
---|
333 | /// |
---|
334 | InEdgeIt& operator++() { return *this; } |
---|
335 | }; |
---|
336 | /// This iterator goes through each symmetric edge. |
---|
337 | |
---|
338 | /// This iterator goes through each symmetric edge of a graph. |
---|
339 | /// Its usage is quite simple, for example you can count the number |
---|
340 | /// of symmetric edges in a graph \c g of type \c Graph as follows: |
---|
341 | /// \code |
---|
342 | /// int count=0; |
---|
343 | /// for(Graph::SymEdgeIt e(g); e!=INVALID; ++e) ++count; |
---|
344 | /// \endcode |
---|
345 | class SymEdgeIt : public SymEdge { |
---|
346 | public: |
---|
347 | /// Default constructor |
---|
348 | |
---|
349 | /// @warning The default constructor sets the iterator |
---|
350 | /// to an undefined value. |
---|
351 | SymEdgeIt() { } |
---|
352 | /// Copy constructor. |
---|
353 | |
---|
354 | /// Copy constructor. |
---|
355 | /// |
---|
356 | SymEdgeIt(const SymEdgeIt&) { } |
---|
357 | /// Initialize the iterator to be invalid. |
---|
358 | |
---|
359 | /// Initialize the iterator to be invalid. |
---|
360 | /// |
---|
361 | SymEdgeIt(Invalid) { } |
---|
362 | /// This constructor sets the iterator to first edge. |
---|
363 | |
---|
364 | /// This constructor sets the iterator to the first edge of |
---|
365 | /// the graph |
---|
366 | ///@param g the graph |
---|
367 | SymEdgeIt(const StaticSymGraph& g) { } |
---|
368 | /// Edge -> EdgeIt conversion |
---|
369 | |
---|
370 | /// Sets the iterator to the value of the trivial iterator \c e. |
---|
371 | /// This feature necessitates that each time we |
---|
372 | /// iterate the edge-set, the iteration order is the same. |
---|
373 | SymEdgeIt(const StaticSymGraph&, const SymEdge&) { } |
---|
374 | ///Next edge |
---|
375 | |
---|
376 | /// Assign the iterator to the next |
---|
377 | /// edge of the corresponding node. |
---|
378 | SymEdgeIt& operator++() { return *this; } |
---|
379 | }; |
---|
380 | /// This iterator goes through each edge. |
---|
381 | |
---|
382 | /// This iterator goes through each edge of a graph. |
---|
383 | /// Its usage is quite simple, for example you can count the number |
---|
384 | /// of edges in a graph \c g of type \c Graph as follows: |
---|
385 | /// \code |
---|
386 | /// int count=0; |
---|
387 | /// for(Graph::EdgeIt e(g); e!=INVALID; ++e) ++count; |
---|
388 | /// \endcode |
---|
389 | class EdgeIt : public Edge { |
---|
390 | public: |
---|
391 | /// Default constructor |
---|
392 | |
---|
393 | /// @warning The default constructor sets the iterator |
---|
394 | /// to an undefined value. |
---|
395 | EdgeIt() { } |
---|
396 | /// Copy constructor. |
---|
397 | |
---|
398 | /// Copy constructor. |
---|
399 | /// |
---|
400 | EdgeIt(const EdgeIt&) { } |
---|
401 | /// Initialize the iterator to be invalid. |
---|
402 | |
---|
403 | /// Initialize the iterator to be invalid. |
---|
404 | /// |
---|
405 | EdgeIt(Invalid) { } |
---|
406 | /// This constructor sets the iterator to first edge. |
---|
407 | |
---|
408 | /// This constructor sets the iterator to the first edge of |
---|
409 | /// the graph |
---|
410 | ///@param g the graph |
---|
411 | EdgeIt(const StaticSymGraph& g) { } |
---|
412 | /// Edge -> EdgeIt conversion |
---|
413 | |
---|
414 | /// Sets the iterator to the value of the trivial iterator \c e. |
---|
415 | /// This feature necessitates that each time we |
---|
416 | /// iterate the edge-set, the iteration order is the same. |
---|
417 | EdgeIt(const StaticSymGraph&, const Edge&) { } |
---|
418 | ///Next edge |
---|
419 | |
---|
420 | /// Assign the iterator to the next |
---|
421 | /// edge of the corresponding node. |
---|
422 | EdgeIt& operator++() { return *this; } |
---|
423 | }; |
---|
424 | |
---|
425 | /// First node of the graph. |
---|
426 | |
---|
427 | /// \retval i the first node. |
---|
428 | /// \return the first node. |
---|
429 | /// |
---|
430 | NodeIt& first(NodeIt& i) const { return i; } |
---|
431 | |
---|
432 | /// The first incoming edge. |
---|
433 | |
---|
434 | /// The first incoming edge. |
---|
435 | /// |
---|
436 | InEdgeIt& first(InEdgeIt &i, Node) const { return i; } |
---|
437 | /// The first outgoing edge. |
---|
438 | |
---|
439 | /// The first outgoing edge. |
---|
440 | /// |
---|
441 | OutEdgeIt& first(OutEdgeIt& i, Node) const { return i; } |
---|
442 | /// The first edge of the Graph. |
---|
443 | |
---|
444 | /// The first edge of the Graph. |
---|
445 | /// |
---|
446 | EdgeIt& first(EdgeIt& i) const { return i; } |
---|
447 | /// The first symmetric edge of the Graph. |
---|
448 | |
---|
449 | /// The first symmetric edge of the Graph. |
---|
450 | /// |
---|
451 | SymEdgeIt& first(SymEdgeIt& i) const { return i; } |
---|
452 | |
---|
453 | ///Gives back the target node of an edge. |
---|
454 | |
---|
455 | ///Gives back the target node of an edge. |
---|
456 | /// |
---|
457 | Node target(Edge) const { return INVALID; } |
---|
458 | ///Gives back the source node of an edge. |
---|
459 | |
---|
460 | ///Gives back the source node of an edge. |
---|
461 | /// |
---|
462 | Node source(Edge) const { return INVALID; } |
---|
463 | |
---|
464 | ///Gives back the first node of an symmetric edge. |
---|
465 | |
---|
466 | ///Gives back the first node of an symmetric edge. |
---|
467 | /// |
---|
468 | Node target(SymEdge) const { return INVALID; } |
---|
469 | ///Gives back the second node of an symmetric edge. |
---|
470 | |
---|
471 | ///Gives back the second node of an symmetric edge. |
---|
472 | /// |
---|
473 | Node source(SymEdge) const { return INVALID; } |
---|
474 | ///Gives back the \e id of a node. |
---|
475 | |
---|
476 | ///\warning Not all graph structures provide this feature. |
---|
477 | /// |
---|
478 | ///\todo Should each graph provide \c id? |
---|
479 | int id(const Node&) const { return 0; } |
---|
480 | ///Gives back the \e id of an edge. |
---|
481 | |
---|
482 | ///\warning Not all graph structures provide this feature. |
---|
483 | /// |
---|
484 | ///\todo Should each graph provide \c id? |
---|
485 | int id(const Edge&) const { return 0; } |
---|
486 | |
---|
487 | ///\warning Not all graph structures provide this feature. |
---|
488 | /// |
---|
489 | ///\todo Should each graph provide \c id? |
---|
490 | int id(const SymEdge&) const { return 0; } |
---|
491 | |
---|
492 | ///\e |
---|
493 | |
---|
494 | ///\todo Should it be in the concept? |
---|
495 | /// |
---|
496 | int nodeNum() const { return 0; } |
---|
497 | ///\e |
---|
498 | |
---|
499 | ///\todo Should it be in the concept? |
---|
500 | /// |
---|
501 | int edgeNum() const { return 0; } |
---|
502 | |
---|
503 | ///\todo Should it be in the concept? |
---|
504 | /// |
---|
505 | int symEdgeNum() const { return 0; } |
---|
506 | |
---|
507 | |
---|
508 | /// Gives back the forward directed edge of the symmetric edge. |
---|
509 | Edge forward(SymEdge) const {return INVALID;} |
---|
510 | |
---|
511 | /// Gives back the backward directed edge of the symmetric edge. |
---|
512 | Edge backward(SymEdge) const {return INVALID;}; |
---|
513 | |
---|
514 | /// Gives back the opposite of the edge. |
---|
515 | Edge opposite(Edge) const {return INVALID;} |
---|
516 | |
---|
517 | ///Reference map of the nodes to type \c T. |
---|
518 | /// \ingroup concept |
---|
519 | ///Reference map of the nodes to type \c T. |
---|
520 | /// \sa Reference |
---|
521 | /// \warning Making maps that can handle bool type (NodeMap<bool>) |
---|
522 | /// needs some extra attention! |
---|
523 | template<class T> class NodeMap : public ReferenceMap< Node, T > |
---|
524 | { |
---|
525 | public: |
---|
526 | |
---|
527 | ///\e |
---|
528 | NodeMap(const StaticSymGraph&) { } |
---|
529 | ///\e |
---|
530 | NodeMap(const StaticSymGraph&, T) { } |
---|
531 | |
---|
532 | ///Copy constructor |
---|
533 | template<typename TT> NodeMap(const NodeMap<TT>&) { } |
---|
534 | ///Assignment operator |
---|
535 | template<typename TT> NodeMap& operator=(const NodeMap<TT>&) |
---|
536 | { return *this; } |
---|
537 | }; |
---|
538 | |
---|
539 | ///Reference map of the edges to type \c T. |
---|
540 | |
---|
541 | /// \ingroup concept |
---|
542 | ///Reference map of the edges to type \c T. |
---|
543 | /// \sa Reference |
---|
544 | /// \warning Making maps that can handle bool type (EdgeMap<bool>) |
---|
545 | /// needs some extra attention! |
---|
546 | template<class T> class EdgeMap |
---|
547 | : public ReferenceMap<Edge,T> |
---|
548 | { |
---|
549 | public: |
---|
550 | |
---|
551 | ///\e |
---|
552 | EdgeMap(const StaticSymGraph&) { } |
---|
553 | ///\e |
---|
554 | EdgeMap(const StaticSymGraph&, T) { } |
---|
555 | |
---|
556 | ///Copy constructor |
---|
557 | template<typename TT> EdgeMap(const EdgeMap<TT>&) { } |
---|
558 | ///Assignment operator |
---|
559 | template<typename TT> EdgeMap &operator=(const EdgeMap<TT>&) |
---|
560 | { return *this; } |
---|
561 | }; |
---|
562 | |
---|
563 | ///Reference map of the edges to type \c T. |
---|
564 | |
---|
565 | /// \ingroup concept |
---|
566 | ///Reference map of the symmetric edges to type \c T. |
---|
567 | /// \sa Reference |
---|
568 | /// \warning Making maps that can handle bool type (EdgeMap<bool>) |
---|
569 | /// needs some extra attention! |
---|
570 | template<class T> class SymEdgeMap |
---|
571 | : public ReferenceMap<SymEdge,T> |
---|
572 | { |
---|
573 | public: |
---|
574 | |
---|
575 | ///\e |
---|
576 | SymEdgeMap(const StaticSymGraph&) { } |
---|
577 | ///\e |
---|
578 | SymEdgeMap(const StaticSymGraph&, T) { } |
---|
579 | |
---|
580 | ///Copy constructor |
---|
581 | template<typename TT> SymEdgeMap(const SymEdgeMap<TT>&) { } |
---|
582 | ///Assignment operator |
---|
583 | template<typename TT> SymEdgeMap &operator=(const SymEdgeMap<TT>&) |
---|
584 | { return *this; } |
---|
585 | }; |
---|
586 | }; |
---|
587 | |
---|
588 | |
---|
589 | |
---|
590 | /// An empty non-static graph class. |
---|
591 | |
---|
592 | /// This class is an extension of \ref StaticGraph |
---|
593 | /// with additional functionality that enables one to build a |
---|
594 | /// graph from scratch. |
---|
595 | class ExtendableSymGraph : public StaticSymGraph |
---|
596 | { |
---|
597 | public: |
---|
598 | /// Default constructor. |
---|
599 | |
---|
600 | /// Default constructor. |
---|
601 | /// |
---|
602 | ExtendableSymGraph() { } |
---|
603 | ///Add a new node to the graph. |
---|
604 | |
---|
605 | /// \return the new node. |
---|
606 | /// |
---|
607 | Node addNode() { return INVALID; } |
---|
608 | ///Add a new edge to the graph. |
---|
609 | |
---|
610 | ///Add a new symmetric edge to the graph with source node \c t |
---|
611 | ///and target node \c h. |
---|
612 | ///\return the new edge. |
---|
613 | SymEdge addEdge(Node h, Node t) { return INVALID; } |
---|
614 | |
---|
615 | /// Resets the graph. |
---|
616 | |
---|
617 | /// This function deletes all edges and nodes of the graph. |
---|
618 | /// It also frees the memory allocated to store them. |
---|
619 | /// \todo It might belong to \ref ErasableGraph. |
---|
620 | void clear() { } |
---|
621 | }; |
---|
622 | |
---|
623 | /// An empty erasable graph class. |
---|
624 | |
---|
625 | /// This class is an extension of \ref ExtendableGraph. It is also |
---|
626 | /// possible to erase edges or nodes in this graph. |
---|
627 | class ErasableSymGraph : public ExtendableSymGraph |
---|
628 | { |
---|
629 | public: |
---|
630 | /// Default constructor. |
---|
631 | |
---|
632 | /// Default constructor. |
---|
633 | /// |
---|
634 | ErasableSymGraph() { } |
---|
635 | /// Deletes a node. |
---|
636 | |
---|
637 | /// Deletes node \c n node. |
---|
638 | /// |
---|
639 | void erase(Node n) { } |
---|
640 | /// Deletes an edge. |
---|
641 | |
---|
642 | /// Deletes edge \c e edge. |
---|
643 | /// |
---|
644 | void erase(SymEdge e) { } |
---|
645 | }; |
---|
646 | |
---|
647 | // @} |
---|
648 | } //namespace concept |
---|
649 | } //namespace lemon |
---|
650 | |
---|
651 | |
---|
652 | |
---|
653 | #endif // LEMON_CONCEPT_GRAPH_H |
---|