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source: lemon-0.x/src/work/marci/bipartite_graph_wrapper.h @ 496:7c463a7635d4

Last change on this file since 496:7c463a7635d4 was 496:7c463a7635d4, checked in by marci, 21 years ago
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1	// -- c++ --
2	#ifndef HUGO_BIPARTITE_GRAPH_WRAPPER_H
3	#define HUGO_BIPARTITE_GRAPH_WRAPPER_H
4
5	///\ingroup gwrappers
6	///\file
7	///\brief Several graph wrappers.
8	///
9	///This file contains several useful graph wrapper functions.
10	///
11	///\author Marton Makai
12
13	#include <invalid.h>
14	#include <iter_map.h>
15	#include <graph_wrapper.h>
16
17	namespace hugo {
18
19	/// A wrapper for composing a bipartite graph.
20	/// \c _graph have to be a reference to a graph of type \c Graph
21	/// and \c _s_false_t_true_map is an \c IterableBoolMap
22	/// reference containing the elements for the
23	/// color classes S and T. \c _graph is to be referred to an undirected
24	/// graph or a directed graph with edges oriented from S to T.
25	///
26	///\author Marton Makai
27	template<typename Graph>
28	class BipartiteGraphWrapper : public GraphWrapper<Graph> {
29	typedef IterableBoolMap< typename Graph::template NodeMap<int> >
30	SFalseTTrueMap;
31	SFalseTTrueMap* s_false_t_true_map;
32
33	public:
34	//marci
35	//FIXME vhogy igy kellene, csak az en forditom nem eszi meg
36	//static const bool S_CLASS=false;
37	//static const bool T_CLASS=true;
38
39	bool S_CLASS;
40	bool T_CLASS;
41
42	BipartiteGraphWrapper(Graph& _graph, SFalseTTrueMap& _s_false_t_true_map)
43	: GraphWrapper<Graph>(_graph), s_false_t_true_map(&_s_false_t_true_map),
44	S_CLASS(false), T_CLASS(true) { }
45	typedef typename GraphWrapper<Graph>::Node Node;
46	//using GraphWrapper<Graph>::NodeIt;
47	typedef typename GraphWrapper<Graph>::Edge Edge;
48	//using GraphWrapper<Graph>::EdgeIt;
49	class ClassNodeIt;
50	friend class ClassNodeIt;
51	class OutEdgeIt;
52	friend class OutEdgeIt;
53	class InEdgeIt;
54	friend class InEdgeIt;
55	class ClassNodeIt {
56	friend class BipartiteGraphWrapper<Graph>;
57	protected:
58	Node n;
59	public:
60	ClassNodeIt() { }
61	ClassNodeIt(const Invalid& i) : n(i) { }
62	ClassNodeIt(const BipartiteGraphWrapper<Graph>& _G, bool _class) {
63	_G.s_false_t_true_map->first(n, _class);
64	}
65	//FIXME needed in new concept, important here
66	ClassNodeIt(const Node& _n) : n(_n) { }
67	operator Node() const { return n; }
68	};
69	// class SNodeIt {
70	// Node n;
71	// public:
72	// SNodeIt() { }
73	// SNodeIt(const Invalid& i) : n(i) { }
74	// SNodeIt(const BipartiteGraphWrapper<Graph>& _G) {
75	// _G.s_false_t_true_map->first(n, false);
76	// }
77	// operator Node() const { return n; }
78	// };
79	// class TNodeIt {
80	// Node n;
81	// public:
82	// TNodeIt() { }
83	// TNodeIt(const Invalid& i) : n(i) { }
84	// TNodeIt(const BipartiteGraphWrapper<Graph>& _G) {
85	// _G.s_false_t_true_map->first(n, true);
86	// }
87	// operator Node() const { return n; }
88	// };
89	class OutEdgeIt {
90	friend class BipartiteGraphWrapper<Graph>;
91	protected:
92	typename Graph::OutEdgeIt e;
93	public:
94	OutEdgeIt() { }
95	OutEdgeIt(const Invalid& i) : e(i) { }
96	OutEdgeIt(const BipartiteGraphWrapper<Graph>& _G, const Node& _n) {
97	if (!(*(_G.s_false_t_true_map))[_n])
98	e=typename Graph::OutEdgeIt(*(_G.graph), typename Graph::Node(_n));
99	else
100	e=INVALID;
101	}
102	operator Edge() const { return Edge(typename Graph::Edge(e)); }
103	};
104	class InEdgeIt {
105	friend class BipartiteGraphWrapper<Graph>;
106	protected:
107	typename Graph::InEdgeIt e;
108	public:
109	InEdgeIt() { }
110	InEdgeIt(const Invalid& i) : e(i) { }
111	InEdgeIt(const BipartiteGraphWrapper<Graph>& _G, const Node& _n) {
112	if ((*(_G.s_false_t_true_map))[_n])
113	e=typename Graph::InEdgeIt(*(_G.graph), typename Graph::Node(_n));
114	else
115	e=INVALID;
116	}
117	operator Edge() const { return Edge(typename Graph::Edge(e)); }
118	};
119
120	using GraphWrapper<Graph>::first;
121	ClassNodeIt& first(ClassNodeIt& n, bool _class) const {
122	n=ClassNodeIt(*this, _class) ; return n; }
123	// SNodeIt& first(SNodeIt& n) const { n=SNodeIt(*this); return n; }
124	// TNodeIt& first(TNodeIt& n) const { n=TNodeIt(*this); return n; }
125	OutEdgeIt& first(OutEdgeIt& i, const Node& p) const {
126	i=OutEdgeIt(*this, p); return i;
127	}
128	InEdgeIt& first(InEdgeIt& i, const Node& p) const {
129	i=InEdgeIt(*this, p); return i;
130	}
131
132	using GraphWrapper<Graph>::next;
133	ClassNodeIt& next(ClassNodeIt& n) const {
134	this->s_false_t_true_map->next(n.n); return n;
135	}
136	// SNodeIt& next(SNodeIt& n) const {
137	// this->s_false_t_true_map->next(n); return n;
138	// }
139	// TNodeIt& next(TNodeIt& n) const {
140	// this->s_false_t_true_map->next(n); return n;
141	// }
142	OutEdgeIt& next(OutEdgeIt& i) const { this->graph->next(i.e); return i; }
143	InEdgeIt& next(InEdgeIt& i) const { this->graph->next(i.e); return i; }
144
145	Node tail(const Edge& e) {
146	if (!(*(this->s_false_t_true_map))[this->graph->tail(e)])
147	return Node(this->graph->tail(e));
148	else
149	return Node(this->graph->head(e));
150	}
151	Node head(const Edge& e) {
152	if (!(*(this->s_false_t_true_map))[this->graph->tail(e)])
153	return Node(this->graph->head(e));
154	else
155	return Node(this->graph->tail(e));
156	}
157
158	Node aNode(const OutEdgeIt& e) const {
159	return Node(this->graph->aNode(e.e));
160	}
161	Node aNode(const InEdgeIt& e) const {
162	return Node(this->graph->aNode(e.e));
163	}
164	Node bNode(const OutEdgeIt& e) const {
165	return Node(this->graph->bNode(e.e));
166	}
167	Node bNode(const InEdgeIt& e) const {
168	return Node(this->graph->bNode(e.e));
169	}
170
171	bool inSClass(const Node& n) const {
172	return !(*(this->s_false_t_true_map))[n];
173	}
174	bool inTClass(const Node& n) const {
175	return (*(this->s_false_t_true_map))[n];
176	}
177	};
178
179	template<typename Graph>
180	class stGraphWrapper;
181
182	// template<typename Graph>
183	// std::ostream&
184	// operator<<(std::ostream& os, const typename stGraphWrapper<Graph>::Node& i) {
185	// os << "(node: " << typename Graph::Node(i) << " spec: " << i.spec <<")";
186	// return os;
187	// }
188	// template<typename Graph>
189	// std::ostream&
190	// operator<<(std::ostream& os, const typename stGraphWrapper<Graph>::Edge& i) {
191	// os << "(edge: " << typename Graph::Edge(i) << " spec: " << i.spec <<
192	// " node: " << i.n << ")";
193	// return os;
194	// }
195
196	/// experimentral, do not try it.
197	/// It eats a bipartite graph, oriented from S to T.
198	/// Such one can be made e.g. by the above wrapper.
199	///
200	///\author Marton Makai
201	template<typename Graph>
202	class stGraphWrapper : public GraphWrapper<Graph> {
203	public:
204	class Node;
205	friend class Node;
206	//GN, int
207	//0 normalis, 1 s, 2, true, ez az iteralasi sorrend,
208	//es a vege a false azaz (invalid, 3)
209	class NodeIt;
210	friend class NodeIt;
211	//GNI, int
212	class Edge;
213	friend class Edge;
214	//GE, int, GN
215	//0 normalis, 1 s->vmi, 2 vmi->t, ez a sorrend,
216	//invalid: (invalid, 3, invalid)
217	class OutEdgeIt;
218	friend class OutEdgeIt;
219	//GO, int, GNI
220	//normalis pontbol (first, 0, invalid), ..., (invalid, 2, vmi), ... (invalid, 3, invalid)
221	//s-bol (invalid, 1, first), ... (invalid, 3, invalid)
222	//t-bol (invalid, 3, invalid)
223	class InEdgeIt;
224	friend class InEdgeIt;
225	//GI, int, GNI
226	//normalis pontbol (first, 0, invalid), ..., (invalid, 1, vmi), ... (invalid, 3, invalid)
227	//s-be (invalid, 3, invalid)
228	//t-be (invalid, 2, first), ... (invalid, 3, invalid)
229	class EdgeIt;
230	friend class EdgeIt;
231	//(first, 0, invalid) ...
232	//(invalid, 1, vmi)
233	//(invalid, 2, vmi)
234	//invalid, 3, invalid)
235	template <typename T> class NodeMap;
236	template <typename T, typename Parent> class EdgeMap;
237
238	// template <typename T> friend class NodeMap;
239	// template <typename T> friend class EdgeMap;
240
241	const Node S_NODE;
242	const Node T_NODE;
243
244	static const bool S_CLASS=false;
245	static const bool T_CLASS=true;
246
247	stGraphWrapper(Graph& _graph) : GraphWrapper<Graph>(_graph) ,
248	S_NODE(INVALID, 1),
249	T_NODE(INVALID, 2) { }
250
251
252	// std::ostream&
253	// operator<<(std::ostream& os, const /typename stGraphWrapper<Graph>::/Node& i);
254	// friend std::ostream&
255	// operator<<(std::ostream& os, const /typename stGraphWrapper<Graph>::/Node& i);
256	// friend std::ostream&
257	// operator<<(std::ostream& os, const /typename stGraphWrapper<Graph>::/Edge& i);
258
259	class Node : public Graph::Node {
260	protected:
261	friend class GraphWrapper<Graph>;
262	friend class stGraphWrapper<Graph>;
263	template <typename T> friend class NodeMap;
264	friend class Edge;
265	friend class OutEdgeIt;
266	friend class InEdgeIt;
267	friend class EdgeIt;
268	int spec;
269	public:
270	Node() { }
271	Node(const typename Graph::Node& _n, int _spec=0) :
272	Graph::Node(_n), spec(_spec) { }
273	Node(const Invalid& i) : Graph::Node(i), spec(3) { }
274	friend bool operator==(const Node& u, const Node& v) {
275	return (u.spec==v.spec &&
276	static_cast<typename Graph::Node>(u)==
277	static_cast<typename Graph::Node>(v));
278	}
279	friend bool operator!=(const Node& u, const Node& v) {
280	return (v.spec!=u.spec \|\|
281	static_cast<typename Graph::Node>(u)!=
282	static_cast<typename Graph::Node>(v));
283	}
284	// template<typename G>
285	// friend std::ostream&
286	// operator<<(std::ostream& os, const typename stGraphWrapper<G>::Node& i);
287	friend std::ostream& operator<< (std::ostream& os, const Node& i);
288	int getSpec() const { return spec; }
289	};
290
291	class NodeIt {
292	friend class GraphWrapper<Graph>;
293	friend class stGraphWrapper<Graph>;
294	typename Graph::NodeIt n;
295	int spec;
296	public:
297	NodeIt() { }
298	NodeIt(const typename Graph::NodeIt& _n, int _spec) :
299	n(_n), spec(_spec) { }
300	NodeIt(const Invalid& i) : n(i), spec(3) { }
301	NodeIt(const stGraphWrapper<Graph>& _G) : n(*(_G.graph)), spec(0) {
302	if (!_G.graph->valid(n)) spec=1;
303	}
304	operator Node() const { return Node(n, spec); }
305	};
306
307	class Edge : public Graph::Edge {
308	friend class GraphWrapper<Graph>;
309	friend class stGraphWrapper<Graph>;
310	template <typename T, typename Parent> friend class EdgeMap;
311	int spec;
312	typename Graph::Node n;
313	public:
314	Edge() { }
315	Edge(const typename Graph::Edge& _e, int _spec,
316	const typename Graph::Node& _n) :
317	Graph::Edge(_e), spec(_spec), n(_n) {
318	}
319	Edge(const Invalid& i) : Graph::Edge(i), spec(3), n(i) { }
320	friend bool operator==(const Edge& u, const Edge& v) {
321	return (u.spec==v.spec &&
322	static_cast<typename Graph::Edge>(u)==
323	static_cast<typename Graph::Edge>(v) &&
324	u.n==v.n);
325	}
326	friend bool operator!=(const Edge& u, const Edge& v) {
327	return (v.spec!=u.spec \|\|
328	static_cast<typename Graph::Edge>(u)!=
329	static_cast<typename Graph::Edge>(v) \|\|
330	u.n!=v.n);
331	}
332	// template<typename G>
333	// friend std::ostream&
334	// operator<<(std::ostream& os, const typename stGraphWrapper<G>::Edge& i);
335	friend std::ostream& operator<< (std::ostream& os, const Edge& i);
336	int getSpec() const { return spec; }
337	};
338
339	class OutEdgeIt {
340	friend class GraphWrapper<Graph>;
341	friend class stGraphWrapper<Graph>;
342	typename Graph::OutEdgeIt e;
343	int spec;
344	typename Graph::ClassNodeIt n;
345	public:
346	OutEdgeIt() { }
347	OutEdgeIt(const typename Graph::OutEdgeIt& _e, int _spec,
348	const typename Graph::ClassNodeIt& _n) :
349	e(_e), spec(_spec), n(_n) {
350	}
351	OutEdgeIt(const Invalid& i) : e(i), spec(3), n(i) { }
352	OutEdgeIt(const stGraphWrapper<Graph>& _G, const Node& _n) {
353	switch (_n.spec) {
354	case 0 :
355	if (_G.graph->inSClass(_n)) { //S, van normalis kiel
356	e=typename Graph::OutEdgeIt(*(_G.graph),
357	typename Graph::Node(_n));
358	spec=0;
359	n=INVALID;
360	if (!_G.graph->valid(e)) spec=3;
361	} else { //T, specko kiel van
362	e=INVALID;
363	spec=2;
364	n=_n;
365	}
366	break;
367	case 1:
368	e=INVALID;
369	spec=1;
370	_G.graph->first(n, S_CLASS); //s->vmi;
371	if (!_G.graph->valid(n)) spec=3; //Ha S ures
372	break;
373	case 2:
374	e=INVALID;
375	spec=3;
376	n=INVALID;
377	break;
378	}
379	}
380	operator Edge() const { return Edge(e, spec, n); }
381	};
382
383	class InEdgeIt {
384	friend class GraphWrapper<Graph>;
385	friend class stGraphWrapper<Graph>;
386	typename Graph::InEdgeIt e;
387	int spec;
388	typename Graph::ClassNodeIt n;
389	public:
390	InEdgeIt() { }
391	InEdgeIt(const typename Graph::InEdgeIt& _e, int _spec,
392	const typename Graph::ClassNodeIt& _n) :
393	e(_e), spec(_spec), n(_n) {
394	}
395	InEdgeIt(const Invalid& i) : e(i), spec(3), n(i) { }
396	InEdgeIt(const stGraphWrapper<Graph>& _G, const Node& _n) {
397	switch (_n.spec) {
398	case 0 :
399	if (_G.graph->inTClass(_n)) { //T, van normalis beel
400	e=typename Graph::InEdgeIt(*(_G.graph),
401	typename Graph::Node(_n));
402	spec=0;
403	n=INVALID;
404	if (!_G.graph->valid(e)) spec=3;
405	} else { //S, specko beel van
406	e=INVALID;
407	spec=1;
408	n=_n;
409	}
410	break;
411	case 1:
412	e=INVALID;
413	spec=3;
414	n=INVALID;
415	break;
416	case 2:
417	e=INVALID;
418	spec=2;
419	_G.graph->first(n, T_CLASS); //vmi->t;
420	if (!_G.graph->valid(n)) spec=3; //Ha T ures
421	break;
422	}
423	}
424	operator Edge() const { return Edge(e, spec, n); }
425	};
426
427	class EdgeIt {
428	friend class GraphWrapper<Graph>;
429	friend class stGraphWrapper<Graph>;
430	typename Graph::EdgeIt e;
431	int spec;
432	typename Graph::ClassNodeIt n;
433	public:
434	EdgeIt() { }
435	EdgeIt(const typename Graph::EdgeIt& _e, int _spec,
436	const typename Graph::ClassNodeIt& _n) :
437	e(_e), spec(_spec), n(_n) { }
438	EdgeIt(const Invalid& i) : e(i), spec(3), n(i) { }
439	EdgeIt(const stGraphWrapper<Graph>& _G) :
440	e(*(_G.graph)), spec(0), n(INVALID) {
441	if (!_G.graph->valid(e)) {
442	spec=1;
443	_G.graph->first(n, S_CLASS);
444	if (!_G.graph->valid(n)) { //Ha S ures
445	spec=2;
446	_G.graph->first(n, T_CLASS);
447	if (!_G.graph->valid(n)) { //Ha T ures
448	spec=3;
449	}
450	}
451	}
452	}
453	operator Edge() const { return Edge(e, spec, n); }
454	};
455
456	NodeIt& first(NodeIt& i) const {
457	i=NodeIt(*this); return i;
458	}
459	OutEdgeIt& first(OutEdgeIt& i, const Node& p) const {
460	i=OutEdgeIt(*this, p); return i;
461	}
462	InEdgeIt& first(InEdgeIt& i, const Node& p) const {
463	i=InEdgeIt(*this, p); return i;
464	}
465	EdgeIt& first(EdgeIt& i) const {
466	i=EdgeIt(*this); return i;
467	}
468
469	NodeIt& next(NodeIt& i) const {
470	switch (i.spec) {
471	case 0:
472	this->graph->next(i.n);
473	if (!this->graph->valid(i.n)) {
474	i.spec=1;
475	}
476	break;
477	case 1:
478	i.spec=2;
479	break;
480	case 2:
481	i.spec=3;
482	break;
483	}
484	return i;
485	}
486	OutEdgeIt& next(OutEdgeIt& i) const {
487	typename Graph::Node v;
488	switch (i.spec) {
489	case 0: //normal edge
490	v=this->graph->aNode(i.e);
491	this->graph->next(i.e);
492	if (!this->graph->valid(i.e)) { //Az igazi elek vegere ertunk
493	if (this->graph->inSClass(v)) { //S, nincs kiel
494	i.spec=3;
495	i.n=INVALID;
496	} else { //T, van kiel
497	i.spec=2;
498	i.n=v;
499	}
500	}
501	break;
502	case 1: //s->vmi
503	this->graph->next(i.n);
504	if (!this->graph->valid(i.n)) i.spec=3;
505	break;
506	case 2: //vmi->t
507	i.spec=3;
508	i.n=INVALID;
509	break;
510	}
511	return i;
512	}
513	InEdgeIt& next(InEdgeIt& i) const {
514	typename Graph::Node v;
515	switch (i.spec) {
516	case 0: //normal edge
517	v=this->graph->aNode(i.e);
518	this->graph->next(i.e);
519	if (!this->graph->valid(i.e)) { //Az igazi elek vegere ertunk
520	if (this->graph->inTClass(v)) { //S, nincs beel
521	i.spec=3;
522	i.n=INVALID;
523	} else { //S, van beel
524	i.spec=1;
525	i.n=v;
526	}
527	}
528	break;
529	case 1: //s->vmi
530	i.spec=3;
531	i.n=INVALID;
532	break;
533	case 2: //vmi->t
534	this->graph->next(i.n);
535	if (!this->graph->valid(i.n)) i.spec=3;
536	break;
537	}
538	return i;
539	}
540
541	EdgeIt& next(EdgeIt& i) const {
542	switch (i.spec) {
543	case 0:
544	this->graph->next(i.e);
545	if (!this->graph->valid(i.e)) {
546	i.spec=1;
547	this->graph->first(i.n, S_CLASS);
548	if (!this->graph->valid(i.n)) {
549	i.spec=2;
550	this->graph->first(i.n, T_CLASS);
551	if (!this->graph->valid(i.n)) i.spec=3;
552	}
553	}
554	break;
555	case 1:
556	this->graph->next(i.n);
557	if (!this->graph->valid(i.n)) {
558	i.spec=2;
559	this->graph->first(i.n, T_CLASS);
560	if (!this->graph->valid(i.n)) i.spec=3;
561	}
562	break;
563	case 2:
564	this->graph->next(i.n);
565	if (!this->graph->valid(i.n)) i.spec=3;
566	break;
567	}
568	return i;
569	}
570
571	Node tail(const Edge& e) const {
572	switch (e.spec) {
573	case 0:
574	return Node(this->graph->tail(e));
575	break;
576	case 1:
577	return S_NODE;
578	break;
579	case 2:
580	default:
581	return Node(e.n);
582	break;
583	}
584	}
585	Node head(const Edge& e) const {
586	switch (e.spec) {
587	case 0:
588	return Node(this->graph->head(e));
589	break;
590	case 1:
591	return Node(e.n);
592	break;
593	case 2:
594	default:
595	return T_NODE;
596	break;
597	}
598	}
599
600	bool valid(const Node& n) const { return (n.spec<3); }
601	bool valid(const Edge& e) const { return (e.spec<3); }
602
603	int nodeNum() const { return this->graph->nodeNum()+2; }
604	int edgeNum() const {
605	return this->graph->edgeNum()+this->graph->nodeNum();
606	}
607
608	Node aNode(const OutEdgeIt& e) const { return tail(e); }
609	Node aNode(const InEdgeIt& e) const { return head(e); }
610	Node bNode(const OutEdgeIt& e) const { return head(e); }
611	Node bNode(const InEdgeIt& e) const { return tail(e); }
612
613	void addNode() const { }
614	void addEdge() const { }
615
616	// Node addNode() const { return Node(this->graph->addNode()); }
617	// Edge addEdge(const Node& tail, const Node& head) const {
618	// return Edge(this->graph->addEdge(tail, head)); }
619
620	// void erase(const Node& i) const { this->graph->erase(i); }
621	// void erase(const Edge& i) const { this->graph->erase(i); }
622
623	// void clear() const { this->graph->clear(); }
624
625	template<typename T> class NodeMap : public GraphWrapper<Graph>::template NodeMap<T> {
626	typedef typename GraphWrapper<Graph>::template NodeMap<T> Parent;
627	T s_value, t_value;
628	public:
629	NodeMap(const stGraphWrapper<Graph>& _G) : Parent(_G),
630	s_value(),
631	t_value() { }
632	NodeMap(const stGraphWrapper<Graph>& _G, T a) : Parent(_G, a),
633	s_value(a),
634	t_value(a) { }
635	T operator[](const Node& n) const {
636	switch (n.spec) {
637	case 0:
638	return Parent::operator[](n);
639	break;
640	case 1:
641	return s_value;
642	break;
643	case 2:
644	default:
645	return t_value;
646	break;
647	}
648	}
649	void set(const Node& n, T t) {
650	switch (n.spec) {
651	case 0:
652	GraphWrapper<Graph>::template NodeMap<T>::set(n, t);
653	break;
654	case 1:
655	s_value=t;
656	break;
657	case 2:
658	default:
659	t_value=t;
660	break;
661	}
662	}
663	};
664
665	template<typename T,
666	typename Parent=
667	typename GraphWrapper<Graph>::template EdgeMap<T> >
668	class EdgeMap : public Parent {
669	//typedef typename GraphWrapper<Graph>::template EdgeMap<T> Parent;
670	typename GraphWrapper<Graph>::template NodeMap<T> node_value;
671	public:
672	EdgeMap(const stGraphWrapper<Graph>& _G) : Parent(_G),
673	node_value(_G) { }
674	EdgeMap(const stGraphWrapper<Graph>& _G, T a) : Parent(_G, a),
675	node_value(_G, a) { }
676	T operator[](const Edge& e) const {
677	switch (e.spec) {
678	case 0:
679	return Parent::operator[](e);
680	break;
681	case 1:
682	return node_value[e.n];
683	break;
684	case 2:
685	default:
686	return node_value[e.n];
687	break;
688	}
689	}
690	void set(const Edge& e, T t) {
691	switch (e.spec) {
692	case 0:
693	Parent::set(e, t);
694	break;
695	case 1:
696	node_value.set(e.n, t);
697	break;
698	case 2:
699	default:
700	node_value.set(e.n, t);
701	break;
702	}
703	}
704	};
705
706	// template<typename T> class EdgeMap : public GraphWrapper<Graph>::template EdgeMap<T> {
707	// typedef typename GraphWrapper<Graph>::template EdgeMap<T> Parent;
708	// typename GraphWrapper<Graph>::template NodeMap<T> node_value;
709	// public:
710	// EdgeMap(const stGraphWrapper<Graph>& _G) : Parent(_G),
711	// node_value(_G) { }
712	// EdgeMap(const stGraphWrapper<Graph>& _G, T a) : Parent(_G, a),
713	// node_value(_G, a) { }
714	// T operator[](const Edge& e) const {
715	// switch (e.spec) {
716	// case 0:
717	// return Parent::operator[](e);
718	// break;
719	// case 1:
720	// return node_value[e.n];
721	// break;
722	// case 2:
723	// default:
724	// return node_value[e.n];
725	// break;
726	// }
727	// }
728	// void set(const Edge& e, T t) {
729	// switch (e.spec) {
730	// case 0:
731	// GraphWrapper<Graph>::template EdgeMap<T>::set(e, t);
732	// break;
733	// case 1:
734	// node_value.set(e.n, t);
735	// break;
736	// case 2:
737	// default:
738	// node_value.set(e.n, t);
739	// break;
740	// }
741	// }
742	// };
743
744	// template<typename G>
745	friend std::ostream&
746	operator<<(std::ostream& os, const /typename stGraphWrapper<Graph>::/Node& i) {
747	os << "(node: " << typename Graph::Node(i) << " spec: " << i.spec <<")";
748	return os;
749	}
750	// template<typename G>
751	friend std::ostream&
752	operator<<(std::ostream& os, const /typename stGraphWrapper<Graph>::/Edge& i) {
753	os << "(edge: " << typename Graph::Edge(i) << " spec: " << i.spec <<
754	" node: " << i.n << ")";
755	return os;
756	}
757
758	};
759
760	///@}
761
762	} //namespace hugo
763
764
765	#endif //HUGO_GRAPH_WRAPPER_H
766

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