lemon-main: lemon/maps.h@be48a648d28f (annotated)

alpar@209	1	/* -- mode: C++; indent-tabs-mode: nil; --
alpar@25	2	*
alpar@209	3	* This file is a part of LEMON, a generic C++ optimization library.
alpar@25	4	*
alpar@440	5	* Copyright (C) 2003-2009
alpar@25	6	* Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
alpar@25	7	* (Egervary Research Group on Combinatorial Optimization, EGRES).
alpar@25	8	*
alpar@25	9	* Permission to use, modify and distribute this software is granted
alpar@25	10	* provided that this copyright notice appears in all copies. For
alpar@25	11	* precise terms see the accompanying LICENSE file.
alpar@25	12	*
alpar@25	13	* This software is provided "AS IS" with no warranty of any kind,
alpar@25	14	* express or implied, and with no claim as to its suitability for any
alpar@25	15	* purpose.
alpar@25	16	*
alpar@25	17	*/
alpar@25	18
alpar@25	19	#ifndef LEMON_MAPS_H
alpar@25	20	#define LEMON_MAPS_H
alpar@25	21
alpar@25	22	#include <iterator>
alpar@25	23	#include <functional>
alpar@25	24	#include <vector>
kpeter@694	25	#include <map>
alpar@25	26
deba@220	27	#include <lemon/core.h>
alpar@25	28
alpar@25	29	///\file
alpar@25	30	///\ingroup maps
alpar@25	31	///\brief Miscellaneous property maps
kpeter@80	32
alpar@25	33	namespace lemon {
alpar@25	34
alpar@25	35	/// \addtogroup maps
alpar@25	36	/// @{
alpar@25	37
alpar@25	38	/// Base class of maps.
alpar@25	39
kpeter@80	40	/// Base class of maps. It provides the necessary type definitions
kpeter@80	41	/// required by the map %concepts.
kpeter@80	42	template<typename K, typename V>
alpar@25	43	class MapBase {
alpar@25	44	public:
kpeter@313	45	/// \brief The key type of the map.
alpar@25	46	typedef K Key;
kpeter@80	47	/// \brief The value type of the map.
kpeter@80	48	/// (The type of objects associated with the keys).
kpeter@80	49	typedef V Value;
alpar@25	50	};
alpar@25	51
kpeter@80	52
alpar@25	53	/// Null map. (a.k.a. DoNothingMap)
alpar@25	54
kpeter@29	55	/// This map can be used if you have to provide a map only for
kpeter@80	56	/// its type definitions, or if you have to provide a writable map,
kpeter@80	57	/// but data written to it is not required (i.e. it will be sent to
kpeter@29	58	/// <tt>/dev/null</tt>).
kpeter@80	59	/// It conforms the \ref concepts::ReadWriteMap "ReadWriteMap" concept.
kpeter@80	60	///
kpeter@80	61	/// \sa ConstMap
kpeter@80	62	template<typename K, typename V>
kpeter@80	63	class NullMap : public MapBase<K, V> {
alpar@25	64	public:
kpeter@559	65	///\e
kpeter@559	66	typedef K Key;
kpeter@559	67	///\e
kpeter@559	68	typedef V Value;
kpeter@80	69
alpar@25	70	/// Gives back a default constructed element.
kpeter@80	71	Value operator[](const Key&) const { return Value(); }
alpar@25	72	/// Absorbs the value.
kpeter@80	73	void set(const Key&, const Value&) {}
alpar@25	74	};
alpar@25	75
kpeter@301	76	/// Returns a \c NullMap class
kpeter@301	77
kpeter@301	78	/// This function just returns a \c NullMap class.
kpeter@80	79	/// \relates NullMap
kpeter@80	80	template <typename K, typename V>
alpar@25	81	NullMap<K, V> nullMap() {
alpar@25	82	return NullMap<K, V>();
alpar@25	83	}
alpar@25	84
alpar@25	85
alpar@25	86	/// Constant map.
alpar@25	87
kpeter@82	88	/// This \ref concepts::ReadMap "readable map" assigns a specified
kpeter@82	89	/// value to each key.
kpeter@80	90	///
kpeter@301	91	/// In other aspects it is equivalent to \c NullMap.
kpeter@80	92	/// So it conforms the \ref concepts::ReadWriteMap "ReadWriteMap"
kpeter@80	93	/// concept, but it absorbs the data written to it.
kpeter@80	94	///
kpeter@80	95	/// The simplest way of using this map is through the constMap()
kpeter@80	96	/// function.
kpeter@80	97	///
kpeter@80	98	/// \sa NullMap
kpeter@80	99	/// \sa IdentityMap
kpeter@80	100	template<typename K, typename V>
kpeter@80	101	class ConstMap : public MapBase<K, V> {
alpar@25	102	private:
kpeter@80	103	V _value;
alpar@25	104	public:
kpeter@559	105	///\e
kpeter@559	106	typedef K Key;
kpeter@559	107	///\e
kpeter@559	108	typedef V Value;
alpar@25	109
alpar@25	110	/// Default constructor
alpar@25	111
kpeter@29	112	/// Default constructor.
kpeter@80	113	/// The value of the map will be default constructed.
alpar@25	114	ConstMap() {}
kpeter@80	115
kpeter@29	116	/// Constructor with specified initial value
alpar@25	117
kpeter@29	118	/// Constructor with specified initial value.
kpeter@123	119	/// \param v The initial value of the map.
kpeter@80	120	ConstMap(const Value &v) : _value(v) {}
alpar@25	121
kpeter@80	122	/// Gives back the specified value.
kpeter@80	123	Value operator[](const Key&) const { return _value; }
alpar@25	124
kpeter@80	125	/// Absorbs the value.
kpeter@80	126	void set(const Key&, const Value&) {}
kpeter@80	127
kpeter@80	128	/// Sets the value that is assigned to each key.
kpeter@80	129	void setAll(const Value &v) {
kpeter@80	130	_value = v;
kpeter@80	131	}
kpeter@80	132
kpeter@80	133	template<typename V1>
kpeter@80	134	ConstMap(const ConstMap<K, V1> &, const Value &v) : _value(v) {}
alpar@25	135	};
alpar@25	136
kpeter@301	137	/// Returns a \c ConstMap class
kpeter@301	138
kpeter@301	139	/// This function just returns a \c ConstMap class.
kpeter@80	140	/// \relates ConstMap
kpeter@80	141	template<typename K, typename V>
alpar@25	142	inline ConstMap<K, V> constMap(const V &v) {
alpar@25	143	return ConstMap<K, V>(v);
alpar@25	144	}
alpar@25	145
kpeter@123	146	template<typename K, typename V>
kpeter@123	147	inline ConstMap<K, V> constMap() {
kpeter@123	148	return ConstMap<K, V>();
kpeter@123	149	}
kpeter@123	150
alpar@25	151
alpar@25	152	template<typename T, T v>
kpeter@80	153	struct Const {};
alpar@25	154
alpar@25	155	/// Constant map with inlined constant value.
alpar@25	156
kpeter@82	157	/// This \ref concepts::ReadMap "readable map" assigns a specified
kpeter@82	158	/// value to each key.
kpeter@80	159	///
kpeter@301	160	/// In other aspects it is equivalent to \c NullMap.
kpeter@80	161	/// So it conforms the \ref concepts::ReadWriteMap "ReadWriteMap"
kpeter@80	162	/// concept, but it absorbs the data written to it.
kpeter@80	163	///
kpeter@80	164	/// The simplest way of using this map is through the constMap()
kpeter@80	165	/// function.
kpeter@80	166	///
kpeter@80	167	/// \sa NullMap
kpeter@80	168	/// \sa IdentityMap
alpar@25	169	template<typename K, typename V, V v>
alpar@25	170	class ConstMap<K, Const<V, v> > : public MapBase<K, V> {
alpar@25	171	public:
kpeter@559	172	///\e
kpeter@559	173	typedef K Key;
kpeter@559	174	///\e
kpeter@559	175	typedef V Value;
alpar@25	176
kpeter@80	177	/// Constructor.
kpeter@80	178	ConstMap() {}
kpeter@80	179
kpeter@80	180	/// Gives back the specified value.
kpeter@80	181	Value operator[](const Key&) const { return v; }
kpeter@80	182
kpeter@80	183	/// Absorbs the value.
kpeter@80	184	void set(const Key&, const Value&) {}
alpar@25	185	};
alpar@25	186
kpeter@301	187	/// Returns a \c ConstMap class with inlined constant value
kpeter@301	188
kpeter@301	189	/// This function just returns a \c ConstMap class with inlined
kpeter@80	190	/// constant value.
kpeter@80	191	/// \relates ConstMap
kpeter@80	192	template<typename K, typename V, V v>
alpar@25	193	inline ConstMap<K, Const<V, v> > constMap() {
alpar@25	194	return ConstMap<K, Const<V, v> >();
alpar@25	195	}
alpar@25	196
alpar@25	197
kpeter@82	198	/// Identity map.
kpeter@82	199
kpeter@82	200	/// This \ref concepts::ReadMap "read-only map" gives back the given
kpeter@82	201	/// key as value without any modification.
kpeter@80	202	///
kpeter@80	203	/// \sa ConstMap
kpeter@80	204	template <typename T>
kpeter@80	205	class IdentityMap : public MapBase<T, T> {
kpeter@80	206	public:
kpeter@559	207	///\e
kpeter@559	208	typedef T Key;
kpeter@559	209	///\e
kpeter@559	210	typedef T Value;
kpeter@80	211
kpeter@80	212	/// Gives back the given value without any modification.
kpeter@82	213	Value operator[](const Key &k) const {
kpeter@82	214	return k;
kpeter@80	215	}
kpeter@80	216	};
kpeter@80	217
kpeter@301	218	/// Returns an \c IdentityMap class
kpeter@301	219
kpeter@301	220	/// This function just returns an \c IdentityMap class.
kpeter@80	221	/// \relates IdentityMap
kpeter@80	222	template<typename T>
kpeter@80	223	inline IdentityMap<T> identityMap() {
kpeter@80	224	return IdentityMap<T>();
kpeter@80	225	}
kpeter@80	226
kpeter@80	227
kpeter@80	228	/// \brief Map for storing values for integer keys from the range
kpeter@80	229	/// <tt>[0..size-1]</tt>.
kpeter@80	230	///
kpeter@80	231	/// This map is essentially a wrapper for \c std::vector. It assigns
kpeter@80	232	/// values to integer keys from the range <tt>[0..size-1]</tt>.
kpeter@80	233	/// It can be used with some data structures, for example
kpeter@301	234	/// \c UnionFind, \c BinHeap, when the used items are small
kpeter@80	235	/// integers. This map conforms the \ref concepts::ReferenceMap
kpeter@80	236	/// "ReferenceMap" concept.
kpeter@80	237	///
kpeter@80	238	/// The simplest way of using this map is through the rangeMap()
kpeter@80	239	/// function.
kpeter@80	240	template <typename V>
kpeter@80	241	class RangeMap : public MapBase<int, V> {
kpeter@80	242	template <typename V1>
kpeter@80	243	friend class RangeMap;
kpeter@80	244	private:
kpeter@80	245
kpeter@80	246	typedef std::vector<V> Vector;
kpeter@80	247	Vector _vector;
kpeter@80	248
alpar@25	249	public:
alpar@25	250
kpeter@80	251	/// Key type
kpeter@559	252	typedef int Key;
kpeter@80	253	/// Value type
kpeter@559	254	typedef V Value;
kpeter@80	255	/// Reference type
kpeter@80	256	typedef typename Vector::reference Reference;
kpeter@80	257	/// Const reference type
kpeter@80	258	typedef typename Vector::const_reference ConstReference;
kpeter@80	259
kpeter@80	260	typedef True ReferenceMapTag;
kpeter@80	261
kpeter@80	262	public:
kpeter@80	263
kpeter@80	264	/// Constructor with specified default value.
kpeter@80	265	RangeMap(int size = 0, const Value &value = Value())
kpeter@80	266	: _vector(size, value) {}
kpeter@80	267
kpeter@80	268	/// Constructs the map from an appropriate \c std::vector.
kpeter@80	269	template <typename V1>
kpeter@80	270	RangeMap(const std::vector<V1>& vector)
kpeter@80	271	: _vector(vector.begin(), vector.end()) {}
kpeter@80	272
kpeter@301	273	/// Constructs the map from another \c RangeMap.
kpeter@80	274	template <typename V1>
kpeter@80	275	RangeMap(const RangeMap<V1> &c)
kpeter@80	276	: _vector(c._vector.begin(), c._vector.end()) {}
kpeter@80	277
kpeter@80	278	/// Returns the size of the map.
kpeter@80	279	int size() {
kpeter@80	280	return _vector.size();
kpeter@80	281	}
kpeter@80	282
kpeter@80	283	/// Resizes the map.
kpeter@80	284
kpeter@80	285	/// Resizes the underlying \c std::vector container, so changes the
kpeter@80	286	/// keyset of the map.
kpeter@80	287	/// \param size The new size of the map. The new keyset will be the
kpeter@80	288	/// range <tt>[0..size-1]</tt>.
kpeter@80	289	/// \param value The default value to assign to the new keys.
kpeter@80	290	void resize(int size, const Value &value = Value()) {
kpeter@80	291	_vector.resize(size, value);
kpeter@80	292	}
kpeter@80	293
kpeter@80	294	private:
kpeter@80	295
kpeter@80	296	RangeMap& operator=(const RangeMap&);
kpeter@80	297
kpeter@80	298	public:
kpeter@80	299
kpeter@80	300	///\e
kpeter@80	301	Reference operator[](const Key &k) {
kpeter@80	302	return _vector[k];
kpeter@80	303	}
kpeter@80	304
kpeter@80	305	///\e
kpeter@80	306	ConstReference operator[](const Key &k) const {
kpeter@80	307	return _vector[k];
kpeter@80	308	}
kpeter@80	309
kpeter@80	310	///\e
kpeter@80	311	void set(const Key &k, const Value &v) {
kpeter@80	312	_vector[k] = v;
kpeter@80	313	}
kpeter@80	314	};
kpeter@80	315
kpeter@301	316	/// Returns a \c RangeMap class
kpeter@301	317
kpeter@301	318	/// This function just returns a \c RangeMap class.
kpeter@80	319	/// \relates RangeMap
kpeter@80	320	template<typename V>
kpeter@80	321	inline RangeMap<V> rangeMap(int size = 0, const V &value = V()) {
kpeter@80	322	return RangeMap<V>(size, value);
kpeter@80	323	}
kpeter@80	324
kpeter@301	325	/// \brief Returns a \c RangeMap class created from an appropriate
kpeter@80	326	/// \c std::vector
kpeter@80	327
kpeter@301	328	/// This function just returns a \c RangeMap class created from an
kpeter@80	329	/// appropriate \c std::vector.
kpeter@80	330	/// \relates RangeMap
kpeter@80	331	template<typename V>
kpeter@80	332	inline RangeMap<V> rangeMap(const std::vector<V> &vector) {
kpeter@80	333	return RangeMap<V>(vector);
kpeter@80	334	}
kpeter@80	335
kpeter@80	336
kpeter@80	337	/// Map type based on \c std::map
kpeter@80	338
kpeter@80	339	/// This map is essentially a wrapper for \c std::map with addition
kpeter@80	340	/// that you can specify a default value for the keys that are not
kpeter@80	341	/// stored actually. This value can be different from the default
kpeter@80	342	/// contructed value (i.e. \c %Value()).
kpeter@80	343	/// This type conforms the \ref concepts::ReferenceMap "ReferenceMap"
kpeter@80	344	/// concept.
kpeter@80	345	///
kpeter@80	346	/// This map is useful if a default value should be assigned to most of
kpeter@80	347	/// the keys and different values should be assigned only to a few
kpeter@80	348	/// keys (i.e. the map is "sparse").
kpeter@80	349	/// The name of this type also refers to this important usage.
kpeter@80	350	///
kpeter@80	351	/// Apart form that this map can be used in many other cases since it
kpeter@80	352	/// is based on \c std::map, which is a general associative container.
kpeter@80	353	/// However keep in mind that it is usually not as efficient as other
kpeter@80	354	/// maps.
kpeter@80	355	///
kpeter@80	356	/// The simplest way of using this map is through the sparseMap()
kpeter@80	357	/// function.
kpeter@559	358	template <typename K, typename V, typename Comp = std::less<K> >
kpeter@80	359	class SparseMap : public MapBase<K, V> {
kpeter@80	360	template <typename K1, typename V1, typename C1>
kpeter@80	361	friend class SparseMap;
kpeter@80	362	public:
kpeter@80	363
kpeter@80	364	/// Key type
kpeter@559	365	typedef K Key;
kpeter@80	366	/// Value type
kpeter@559	367	typedef V Value;
kpeter@80	368	/// Reference type
kpeter@80	369	typedef Value& Reference;
kpeter@80	370	/// Const reference type
kpeter@80	371	typedef const Value& ConstReference;
alpar@25	372
kpeter@45	373	typedef True ReferenceMapTag;
kpeter@45	374
alpar@25	375	private:
kpeter@80	376
kpeter@559	377	typedef std::map<K, V, Comp> Map;
kpeter@80	378	Map _map;
alpar@25	379	Value _value;
alpar@25	380
alpar@25	381	public:
alpar@25	382
kpeter@80	383	/// \brief Constructor with specified default value.
kpeter@80	384	SparseMap(const Value &value = Value()) : _value(value) {}
kpeter@80	385	/// \brief Constructs the map from an appropriate \c std::map, and
kpeter@47	386	/// explicitly specifies a default value.
kpeter@80	387	template <typename V1, typename Comp1>
kpeter@80	388	SparseMap(const std::map<Key, V1, Comp1> &map,
kpeter@80	389	const Value &value = Value())
alpar@25	390	: _map(map.begin(), map.end()), _value(value) {}
kpeter@80	391
kpeter@301	392	/// \brief Constructs the map from another \c SparseMap.
kpeter@80	393	template<typename V1, typename Comp1>
kpeter@80	394	SparseMap(const SparseMap<Key, V1, Comp1> &c)
alpar@25	395	: _map(c._map.begin(), c._map.end()), _value(c._value) {}
alpar@25	396
alpar@25	397	private:
alpar@25	398
kpeter@80	399	SparseMap& operator=(const SparseMap&);
alpar@25	400
alpar@25	401	public:
alpar@25	402
alpar@25	403	///\e
alpar@25	404	Reference operator[](const Key &k) {
alpar@25	405	typename Map::iterator it = _map.lower_bound(k);
alpar@25	406	if (it != _map.end() && !_map.key_comp()(k, it->first))
alpar@209	407	return it->second;
alpar@25	408	else
alpar@209	409	return _map.insert(it, std::make_pair(k, _value))->second;
alpar@25	410	}
alpar@25	411
kpeter@80	412	///\e
alpar@25	413	ConstReference operator[](const Key &k) const {
alpar@25	414	typename Map::const_iterator it = _map.find(k);
alpar@25	415	if (it != _map.end())
alpar@209	416	return it->second;
alpar@25	417	else
alpar@209	418	return _value;
alpar@25	419	}
alpar@25	420
kpeter@80	421	///\e
kpeter@80	422	void set(const Key &k, const Value &v) {
alpar@25	423	typename Map::iterator it = _map.lower_bound(k);
alpar@25	424	if (it != _map.end() && !_map.key_comp()(k, it->first))
alpar@209	425	it->second = v;
alpar@25	426	else
alpar@209	427	_map.insert(it, std::make_pair(k, v));
alpar@25	428	}
alpar@25	429
kpeter@80	430	///\e
kpeter@80	431	void setAll(const Value &v) {
kpeter@80	432	_value = v;
alpar@25	433	_map.clear();
kpeter@80	434	}
kpeter@80	435	};
alpar@25	436
kpeter@301	437	/// Returns a \c SparseMap class
kpeter@301	438
kpeter@301	439	/// This function just returns a \c SparseMap class with specified
kpeter@80	440	/// default value.
kpeter@80	441	/// \relates SparseMap
kpeter@80	442	template<typename K, typename V, typename Compare>
kpeter@80	443	inline SparseMap<K, V, Compare> sparseMap(const V& value = V()) {
kpeter@80	444	return SparseMap<K, V, Compare>(value);
kpeter@54	445	}
kpeter@45	446
kpeter@80	447	template<typename K, typename V>
kpeter@80	448	inline SparseMap<K, V, std::less<K> > sparseMap(const V& value = V()) {
kpeter@80	449	return SparseMap<K, V, std::less<K> >(value);
kpeter@45	450	}
alpar@25	451
kpeter@301	452	/// \brief Returns a \c SparseMap class created from an appropriate
kpeter@80	453	/// \c std::map
alpar@25	454
kpeter@301	455	/// This function just returns a \c SparseMap class created from an
kpeter@80	456	/// appropriate \c std::map.
kpeter@80	457	/// \relates SparseMap
kpeter@80	458	template<typename K, typename V, typename Compare>
kpeter@80	459	inline SparseMap<K, V, Compare>
kpeter@80	460	sparseMap(const std::map<K, V, Compare> &map, const V& value = V())
kpeter@80	461	{
kpeter@80	462	return SparseMap<K, V, Compare>(map, value);
kpeter@45	463	}
alpar@25	464
alpar@25	465	/// @}
alpar@25	466
alpar@25	467	/// \addtogroup map_adaptors
alpar@25	468	/// @{
alpar@25	469
kpeter@80	470	/// Composition of two maps
kpeter@80	471
kpeter@82	472	/// This \ref concepts::ReadMap "read-only map" returns the
kpeter@80	473	/// composition of two given maps. That is to say, if \c m1 is of
kpeter@80	474	/// type \c M1 and \c m2 is of \c M2, then for
kpeter@80	475	/// \code
kpeter@80	476	/// ComposeMap<M1, M2> cm(m1,m2);
kpeter@80	477	/// \endcode
kpeter@80	478	/// <tt>cm[x]</tt> will be equal to <tt>m1[m2[x]]</tt>.
alpar@25	479	///
kpeter@80	480	/// The \c Key type of the map is inherited from \c M2 and the
kpeter@80	481	/// \c Value type is from \c M1.
kpeter@80	482	/// \c M2::Value must be convertible to \c M1::Key.
kpeter@80	483	///
kpeter@80	484	/// The simplest way of using this map is through the composeMap()
kpeter@80	485	/// function.
kpeter@80	486	///
kpeter@80	487	/// \sa CombineMap
kpeter@80	488	template <typename M1, typename M2>
kpeter@80	489	class ComposeMap : public MapBase<typename M2::Key, typename M1::Value> {
kpeter@80	490	const M1 &_m1;
kpeter@80	491	const M2 &_m2;
alpar@25	492	public:
kpeter@559	493	///\e
kpeter@559	494	typedef typename M2::Key Key;
kpeter@559	495	///\e
kpeter@559	496	typedef typename M1::Value Value;
alpar@25	497
kpeter@80	498	/// Constructor
kpeter@80	499	ComposeMap(const M1 &m1, const M2 &m2) : _m1(m1), _m2(m2) {}
kpeter@80	500
kpeter@559	501	///\e
kpeter@80	502	typename MapTraits<M1>::ConstReturnValue
kpeter@80	503	operator[](const Key &k) const { return _m1[_m2[k]]; }
alpar@25	504	};
alpar@25	505
kpeter@301	506	/// Returns a \c ComposeMap class
kpeter@301	507
kpeter@301	508	/// This function just returns a \c ComposeMap class.
kpeter@80	509	///
kpeter@80	510	/// If \c m1 and \c m2 are maps and the \c Value type of \c m2 is
kpeter@80	511	/// convertible to the \c Key of \c m1, then <tt>composeMap(m1,m2)[x]</tt>
kpeter@80	512	/// will be equal to <tt>m1[m2[x]]</tt>.
kpeter@80	513	///
kpeter@80	514	/// \relates ComposeMap
kpeter@80	515	template <typename M1, typename M2>
kpeter@80	516	inline ComposeMap<M1, M2> composeMap(const M1 &m1, const M2 &m2) {
kpeter@80	517	return ComposeMap<M1, M2>(m1, m2);
alpar@25	518	}
alpar@25	519
kpeter@80	520
kpeter@80	521	/// Combination of two maps using an STL (binary) functor.
kpeter@80	522
kpeter@82	523	/// This \ref concepts::ReadMap "read-only map" takes two maps and a
kpeter@80	524	/// binary functor and returns the combination of the two given maps
kpeter@80	525	/// using the functor.
kpeter@80	526	/// That is to say, if \c m1 is of type \c M1 and \c m2 is of \c M2
kpeter@80	527	/// and \c f is of \c F, then for
kpeter@80	528	/// \code
kpeter@80	529	/// CombineMap<M1,M2,F,V> cm(m1,m2,f);
kpeter@80	530	/// \endcode
kpeter@80	531	/// <tt>cm[x]</tt> will be equal to <tt>f(m1[x],m2[x])</tt>.
alpar@26	532	///
kpeter@80	533	/// The \c Key type of the map is inherited from \c M1 (\c M1::Key
kpeter@80	534	/// must be convertible to \c M2::Key) and the \c Value type is \c V.
kpeter@80	535	/// \c M2::Value and \c M1::Value must be convertible to the
kpeter@80	536	/// corresponding input parameter of \c F and the return type of \c F
kpeter@80	537	/// must be convertible to \c V.
kpeter@80	538	///
kpeter@80	539	/// The simplest way of using this map is through the combineMap()
kpeter@80	540	/// function.
kpeter@80	541	///
kpeter@80	542	/// \sa ComposeMap
kpeter@80	543	template<typename M1, typename M2, typename F,
alpar@209	544	typename V = typename F::result_type>
kpeter@80	545	class CombineMap : public MapBase<typename M1::Key, V> {
kpeter@80	546	const M1 &_m1;
kpeter@80	547	const M2 &_m2;
kpeter@80	548	F _f;
alpar@25	549	public:
kpeter@559	550	///\e
kpeter@559	551	typedef typename M1::Key Key;
kpeter@559	552	///\e
kpeter@559	553	typedef V Value;
alpar@25	554
kpeter@80	555	/// Constructor
kpeter@80	556	CombineMap(const M1 &m1, const M2 &m2, const F &f = F())
kpeter@80	557	: _m1(m1), _m2(m2), _f(f) {}
kpeter@559	558	///\e
kpeter@80	559	Value operator[](const Key &k) const { return _f(_m1[k],_m2[k]); }
kpeter@80	560	};
alpar@25	561
kpeter@301	562	/// Returns a \c CombineMap class
kpeter@301	563
kpeter@301	564	/// This function just returns a \c CombineMap class.
kpeter@80	565	///
kpeter@80	566	/// For example, if \c m1 and \c m2 are both maps with \c double
kpeter@80	567	/// values, then
kpeter@80	568	/// \code
kpeter@80	569	/// combineMap(m1,m2,std::plus<double>())
kpeter@80	570	/// \endcode
kpeter@80	571	/// is equivalent to
kpeter@80	572	/// \code
kpeter@80	573	/// addMap(m1,m2)
kpeter@80	574	/// \endcode
kpeter@80	575	///
kpeter@80	576	/// This function is specialized for adaptable binary function
kpeter@80	577	/// classes and C++ functions.
kpeter@80	578	///
kpeter@80	579	/// \relates CombineMap
kpeter@80	580	template<typename M1, typename M2, typename F, typename V>
kpeter@80	581	inline CombineMap<M1, M2, F, V>
kpeter@80	582	combineMap(const M1 &m1, const M2 &m2, const F &f) {
kpeter@80	583	return CombineMap<M1, M2, F, V>(m1,m2,f);
alpar@25	584	}
alpar@25	585
kpeter@80	586	template<typename M1, typename M2, typename F>
kpeter@80	587	inline CombineMap<M1, M2, F, typename F::result_type>
kpeter@80	588	combineMap(const M1 &m1, const M2 &m2, const F &f) {
kpeter@80	589	return combineMap<M1, M2, F, typename F::result_type>(m1,m2,f);
kpeter@80	590	}
alpar@25	591
kpeter@80	592	template<typename M1, typename M2, typename K1, typename K2, typename V>
kpeter@80	593	inline CombineMap<M1, M2, V (*)(K1, K2), V>
kpeter@80	594	combineMap(const M1 &m1, const M2 &m2, V (*f)(K1, K2)) {
kpeter@80	595	return combineMap<M1, M2, V (*)(K1, K2), V>(m1,m2,f);
kpeter@80	596	}
kpeter@80	597
kpeter@80	598
kpeter@80	599	/// Converts an STL style (unary) functor to a map
kpeter@80	600
kpeter@82	601	/// This \ref concepts::ReadMap "read-only map" returns the value
kpeter@80	602	/// of a given functor. Actually, it just wraps the functor and
kpeter@80	603	/// provides the \c Key and \c Value typedefs.
alpar@26	604	///
kpeter@80	605	/// Template parameters \c K and \c V will become its \c Key and
kpeter@80	606	/// \c Value. In most cases they have to be given explicitly because
kpeter@80	607	/// a functor typically does not provide \c argument_type and
kpeter@80	608	/// \c result_type typedefs.
kpeter@80	609	/// Parameter \c F is the type of the used functor.
kpeter@29	610	///
kpeter@80	611	/// The simplest way of using this map is through the functorToMap()
kpeter@80	612	/// function.
kpeter@80	613	///
kpeter@80	614	/// \sa MapToFunctor
kpeter@80	615	template<typename F,
alpar@209	616	typename K = typename F::argument_type,
alpar@209	617	typename V = typename F::result_type>
kpeter@80	618	class FunctorToMap : public MapBase<K, V> {
kpeter@123	619	F _f;
kpeter@80	620	public:
kpeter@559	621	///\e
kpeter@559	622	typedef K Key;
kpeter@559	623	///\e
kpeter@559	624	typedef V Value;
alpar@25	625
kpeter@80	626	/// Constructor
kpeter@80	627	FunctorToMap(const F &f = F()) : _f(f) {}
kpeter@559	628	///\e
kpeter@80	629	Value operator[](const Key &k) const { return _f(k); }
kpeter@80	630	};
kpeter@80	631
kpeter@301	632	/// Returns a \c FunctorToMap class
kpeter@301	633
kpeter@301	634	/// This function just returns a \c FunctorToMap class.
kpeter@80	635	///
kpeter@80	636	/// This function is specialized for adaptable binary function
kpeter@80	637	/// classes and C++ functions.
kpeter@80	638	///
kpeter@80	639	/// \relates FunctorToMap
kpeter@80	640	template<typename K, typename V, typename F>
kpeter@80	641	inline FunctorToMap<F, K, V> functorToMap(const F &f) {
kpeter@80	642	return FunctorToMap<F, K, V>(f);
kpeter@80	643	}
kpeter@80	644
kpeter@80	645	template <typename F>
kpeter@80	646	inline FunctorToMap<F, typename F::argument_type, typename F::result_type>
kpeter@80	647	functorToMap(const F &f)
kpeter@80	648	{
kpeter@80	649	return FunctorToMap<F, typename F::argument_type,
kpeter@80	650	typename F::result_type>(f);
kpeter@80	651	}
kpeter@80	652
kpeter@80	653	template <typename K, typename V>
kpeter@80	654	inline FunctorToMap<V ()(K), K, V> functorToMap(V (f)(K)) {
kpeter@80	655	return FunctorToMap<V (*)(K), K, V>(f);
kpeter@80	656	}
kpeter@80	657
kpeter@80	658
kpeter@80	659	/// Converts a map to an STL style (unary) functor
kpeter@80	660
kpeter@80	661	/// This class converts a map to an STL style (unary) functor.
kpeter@80	662	/// That is it provides an <tt>operator()</tt> to read its values.
kpeter@80	663	///
kpeter@80	664	/// For the sake of convenience it also works as a usual
kpeter@80	665	/// \ref concepts::ReadMap "readable map", i.e. <tt>operator[]</tt>
kpeter@80	666	/// and the \c Key and \c Value typedefs also exist.
kpeter@80	667	///
kpeter@80	668	/// The simplest way of using this map is through the mapToFunctor()
kpeter@80	669	/// function.
kpeter@80	670	///
kpeter@80	671	///\sa FunctorToMap
kpeter@80	672	template <typename M>
kpeter@80	673	class MapToFunctor : public MapBase<typename M::Key, typename M::Value> {
kpeter@80	674	const M &_m;
alpar@25	675	public:
kpeter@559	676	///\e
kpeter@559	677	typedef typename M::Key Key;
kpeter@559	678	///\e
kpeter@559	679	typedef typename M::Value Value;
kpeter@559	680
kpeter@559	681	typedef typename M::Key argument_type;
kpeter@559	682	typedef typename M::Value result_type;
kpeter@80	683
kpeter@80	684	/// Constructor
kpeter@80	685	MapToFunctor(const M &m) : _m(m) {}
kpeter@559	686	///\e
kpeter@80	687	Value operator()(const Key &k) const { return _m[k]; }
kpeter@559	688	///\e
kpeter@80	689	Value operator[](const Key &k) const { return _m[k]; }
alpar@25	690	};
kpeter@45	691
kpeter@301	692	/// Returns a \c MapToFunctor class
kpeter@301	693
kpeter@301	694	/// This function just returns a \c MapToFunctor class.
kpeter@80	695	/// \relates MapToFunctor
kpeter@45	696	template<typename M>
kpeter@80	697	inline MapToFunctor<M> mapToFunctor(const M &m) {
kpeter@80	698	return MapToFunctor<M>(m);
kpeter@45	699	}
alpar@25	700
alpar@25	701
kpeter@80	702	/// \brief Map adaptor to convert the \c Value type of a map to
kpeter@80	703	/// another type using the default conversion.
kpeter@80	704
kpeter@80	705	/// Map adaptor to convert the \c Value type of a \ref concepts::ReadMap
kpeter@80	706	/// "readable map" to another type using the default conversion.
kpeter@80	707	/// The \c Key type of it is inherited from \c M and the \c Value
kpeter@80	708	/// type is \c V.
kpeter@80	709	/// This type conforms the \ref concepts::ReadMap "ReadMap" concept.
alpar@26	710	///
kpeter@80	711	/// The simplest way of using this map is through the convertMap()
kpeter@80	712	/// function.
kpeter@80	713	template <typename M, typename V>
kpeter@80	714	class ConvertMap : public MapBase<typename M::Key, V> {
kpeter@80	715	const M &_m;
kpeter@80	716	public:
kpeter@559	717	///\e
kpeter@559	718	typedef typename M::Key Key;
kpeter@559	719	///\e
kpeter@559	720	typedef V Value;
kpeter@80	721
kpeter@80	722	/// Constructor
kpeter@80	723
kpeter@80	724	/// Constructor.
kpeter@80	725	/// \param m The underlying map.
kpeter@80	726	ConvertMap(const M &m) : _m(m) {}
kpeter@80	727
kpeter@559	728	///\e
kpeter@80	729	Value operator[](const Key &k) const { return _m[k]; }
kpeter@80	730	};
kpeter@80	731
kpeter@301	732	/// Returns a \c ConvertMap class
kpeter@301	733
kpeter@301	734	/// This function just returns a \c ConvertMap class.
kpeter@80	735	/// \relates ConvertMap
kpeter@80	736	template<typename V, typename M>
kpeter@80	737	inline ConvertMap<M, V> convertMap(const M &map) {
kpeter@80	738	return ConvertMap<M, V>(map);
kpeter@80	739	}
kpeter@80	740
kpeter@80	741
kpeter@80	742	/// Applies all map setting operations to two maps
kpeter@80	743
kpeter@80	744	/// This map has two \ref concepts::WriteMap "writable map" parameters
kpeter@80	745	/// and each write request will be passed to both of them.
kpeter@80	746	/// If \c M1 is also \ref concepts::ReadMap "readable", then the read
kpeter@80	747	/// operations will return the corresponding values of \c M1.
kpeter@29	748	///
kpeter@80	749	/// The \c Key and \c Value types are inherited from \c M1.
kpeter@80	750	/// The \c Key and \c Value of \c M2 must be convertible from those
kpeter@80	751	/// of \c M1.
kpeter@80	752	///
kpeter@80	753	/// The simplest way of using this map is through the forkMap()
kpeter@80	754	/// function.
kpeter@80	755	template<typename M1, typename M2>
kpeter@80	756	class ForkMap : public MapBase<typename M1::Key, typename M1::Value> {
kpeter@80	757	M1 &_m1;
kpeter@80	758	M2 &_m2;
kpeter@80	759	public:
kpeter@559	760	///\e
kpeter@559	761	typedef typename M1::Key Key;
kpeter@559	762	///\e
kpeter@559	763	typedef typename M1::Value Value;
alpar@25	764
kpeter@80	765	/// Constructor
kpeter@80	766	ForkMap(M1 &m1, M2 &m2) : _m1(m1), _m2(m2) {}
kpeter@80	767	/// Returns the value associated with the given key in the first map.
kpeter@80	768	Value operator[](const Key &k) const { return _m1[k]; }
kpeter@80	769	/// Sets the value associated with the given key in both maps.
kpeter@80	770	void set(const Key &k, const Value &v) { _m1.set(k,v); _m2.set(k,v); }
kpeter@80	771	};
kpeter@80	772
kpeter@301	773	/// Returns a \c ForkMap class
kpeter@301	774
kpeter@301	775	/// This function just returns a \c ForkMap class.
kpeter@80	776	/// \relates ForkMap
kpeter@80	777	template <typename M1, typename M2>
kpeter@80	778	inline ForkMap<M1,M2> forkMap(M1 &m1, M2 &m2) {
kpeter@80	779	return ForkMap<M1,M2>(m1,m2);
kpeter@80	780	}
kpeter@80	781
kpeter@80	782
kpeter@80	783	/// Sum of two maps
kpeter@80	784
kpeter@82	785	/// This \ref concepts::ReadMap "read-only map" returns the sum
kpeter@80	786	/// of the values of the two given maps.
kpeter@80	787	/// Its \c Key and \c Value types are inherited from \c M1.
kpeter@80	788	/// The \c Key and \c Value of \c M2 must be convertible to those of
kpeter@80	789	/// \c M1.
kpeter@80	790	///
kpeter@80	791	/// If \c m1 is of type \c M1 and \c m2 is of \c M2, then for
kpeter@80	792	/// \code
kpeter@80	793	/// AddMap<M1,M2> am(m1,m2);
kpeter@80	794	/// \endcode
kpeter@80	795	/// <tt>am[x]</tt> will be equal to <tt>m1[x]+m2[x]</tt>.
kpeter@80	796	///
kpeter@80	797	/// The simplest way of using this map is through the addMap()
kpeter@80	798	/// function.
kpeter@80	799	///
kpeter@80	800	/// \sa SubMap, MulMap, DivMap
kpeter@80	801	/// \sa ShiftMap, ShiftWriteMap
kpeter@80	802	template<typename M1, typename M2>
alpar@25	803	class AddMap : public MapBase<typename M1::Key, typename M1::Value> {
kpeter@80	804	const M1 &_m1;
kpeter@80	805	const M2 &_m2;
alpar@25	806	public:
kpeter@559	807	///\e
kpeter@559	808	typedef typename M1::Key Key;
kpeter@559	809	///\e
kpeter@559	810	typedef typename M1::Value Value;
alpar@25	811
kpeter@80	812	/// Constructor
kpeter@80	813	AddMap(const M1 &m1, const M2 &m2) : _m1(m1), _m2(m2) {}
kpeter@559	814	///\e
kpeter@80	815	Value operator[](const Key &k) const { return _m1[k]+_m2[k]; }
alpar@25	816	};
alpar@25	817
kpeter@301	818	/// Returns an \c AddMap class
kpeter@301	819
kpeter@301	820	/// This function just returns an \c AddMap class.
alpar@25	821	///
kpeter@80	822	/// For example, if \c m1 and \c m2 are both maps with \c double
kpeter@80	823	/// values, then <tt>addMap(m1,m2)[x]</tt> will be equal to
kpeter@80	824	/// <tt>m1[x]+m2[x]</tt>.
kpeter@80	825	///
kpeter@80	826	/// \relates AddMap
kpeter@80	827	template<typename M1, typename M2>
kpeter@80	828	inline AddMap<M1, M2> addMap(const M1 &m1, const M2 &m2) {
alpar@25	829	return AddMap<M1, M2>(m1,m2);
alpar@25	830	}
alpar@25	831
alpar@25	832
kpeter@80	833	/// Difference of two maps
kpeter@80	834
kpeter@82	835	/// This \ref concepts::ReadMap "read-only map" returns the difference
kpeter@80	836	/// of the values of the two given maps.
kpeter@80	837	/// Its \c Key and \c Value types are inherited from \c M1.
kpeter@80	838	/// The \c Key and \c Value of \c M2 must be convertible to those of
kpeter@80	839	/// \c M1.
alpar@25	840	///
kpeter@80	841	/// If \c m1 is of type \c M1 and \c m2 is of \c M2, then for
kpeter@80	842	/// \code
kpeter@80	843	/// SubMap<M1,M2> sm(m1,m2);
kpeter@80	844	/// \endcode
kpeter@80	845	/// <tt>sm[x]</tt> will be equal to <tt>m1[x]-m2[x]</tt>.
kpeter@29	846	///
kpeter@80	847	/// The simplest way of using this map is through the subMap()
kpeter@80	848	/// function.
kpeter@80	849	///
kpeter@80	850	/// \sa AddMap, MulMap, DivMap
kpeter@80	851	template<typename M1, typename M2>
kpeter@80	852	class SubMap : public MapBase<typename M1::Key, typename M1::Value> {
kpeter@80	853	const M1 &_m1;
kpeter@80	854	const M2 &_m2;
kpeter@80	855	public:
kpeter@559	856	///\e
kpeter@559	857	typedef typename M1::Key Key;
kpeter@559	858	///\e
kpeter@559	859	typedef typename M1::Value Value;
kpeter@80	860
kpeter@80	861	/// Constructor
kpeter@80	862	SubMap(const M1 &m1, const M2 &m2) : _m1(m1), _m2(m2) {}
kpeter@559	863	///\e
kpeter@80	864	Value operator[](const Key &k) const { return _m1[k]-_m2[k]; }
kpeter@80	865	};
kpeter@80	866
kpeter@301	867	/// Returns a \c SubMap class
kpeter@301	868
kpeter@301	869	/// This function just returns a \c SubMap class.
kpeter@80	870	///
kpeter@80	871	/// For example, if \c m1 and \c m2 are both maps with \c double
kpeter@80	872	/// values, then <tt>subMap(m1,m2)[x]</tt> will be equal to
kpeter@80	873	/// <tt>m1[x]-m2[x]</tt>.
kpeter@80	874	///
kpeter@80	875	/// \relates SubMap
kpeter@80	876	template<typename M1, typename M2>
kpeter@80	877	inline SubMap<M1, M2> subMap(const M1 &m1, const M2 &m2) {
kpeter@80	878	return SubMap<M1, M2>(m1,m2);
kpeter@80	879	}
kpeter@80	880
kpeter@80	881
kpeter@80	882	/// Product of two maps
kpeter@80	883
kpeter@82	884	/// This \ref concepts::ReadMap "read-only map" returns the product
kpeter@80	885	/// of the values of the two given maps.
kpeter@80	886	/// Its \c Key and \c Value types are inherited from \c M1.
kpeter@80	887	/// The \c Key and \c Value of \c M2 must be convertible to those of
kpeter@80	888	/// \c M1.
kpeter@80	889	///
kpeter@80	890	/// If \c m1 is of type \c M1 and \c m2 is of \c M2, then for
kpeter@80	891	/// \code
kpeter@80	892	/// MulMap<M1,M2> mm(m1,m2);
kpeter@80	893	/// \endcode
kpeter@80	894	/// <tt>mm[x]</tt> will be equal to <tt>m1[x]*m2[x]</tt>.
kpeter@80	895	///
kpeter@80	896	/// The simplest way of using this map is through the mulMap()
kpeter@80	897	/// function.
kpeter@80	898	///
kpeter@80	899	/// \sa AddMap, SubMap, DivMap
kpeter@80	900	/// \sa ScaleMap, ScaleWriteMap
kpeter@80	901	template<typename M1, typename M2>
kpeter@80	902	class MulMap : public MapBase<typename M1::Key, typename M1::Value> {
kpeter@80	903	const M1 &_m1;
kpeter@80	904	const M2 &_m2;
kpeter@80	905	public:
kpeter@559	906	///\e
kpeter@559	907	typedef typename M1::Key Key;
kpeter@559	908	///\e
kpeter@559	909	typedef typename M1::Value Value;
kpeter@80	910
kpeter@80	911	/// Constructor
kpeter@80	912	MulMap(const M1 &m1,const M2 &m2) : _m1(m1), _m2(m2) {}
kpeter@559	913	///\e
kpeter@80	914	Value operator[](const Key &k) const { return _m1[k]*_m2[k]; }
kpeter@80	915	};
kpeter@80	916
kpeter@301	917	/// Returns a \c MulMap class
kpeter@301	918
kpeter@301	919	/// This function just returns a \c MulMap class.
kpeter@80	920	///
kpeter@80	921	/// For example, if \c m1 and \c m2 are both maps with \c double
kpeter@80	922	/// values, then <tt>mulMap(m1,m2)[x]</tt> will be equal to
kpeter@80	923	/// <tt>m1[x]*m2[x]</tt>.
kpeter@80	924	///
kpeter@80	925	/// \relates MulMap
kpeter@80	926	template<typename M1, typename M2>
kpeter@80	927	inline MulMap<M1, M2> mulMap(const M1 &m1,const M2 &m2) {
kpeter@80	928	return MulMap<M1, M2>(m1,m2);
kpeter@80	929	}
kpeter@80	930
kpeter@80	931
kpeter@80	932	/// Quotient of two maps
kpeter@80	933
kpeter@82	934	/// This \ref concepts::ReadMap "read-only map" returns the quotient
kpeter@80	935	/// of the values of the two given maps.
kpeter@80	936	/// Its \c Key and \c Value types are inherited from \c M1.
kpeter@80	937	/// The \c Key and \c Value of \c M2 must be convertible to those of
kpeter@80	938	/// \c M1.
kpeter@80	939	///
kpeter@80	940	/// If \c m1 is of type \c M1 and \c m2 is of \c M2, then for
kpeter@80	941	/// \code
kpeter@80	942	/// DivMap<M1,M2> dm(m1,m2);
kpeter@80	943	/// \endcode
kpeter@80	944	/// <tt>dm[x]</tt> will be equal to <tt>m1[x]/m2[x]</tt>.
kpeter@80	945	///
kpeter@80	946	/// The simplest way of using this map is through the divMap()
kpeter@80	947	/// function.
kpeter@80	948	///
kpeter@80	949	/// \sa AddMap, SubMap, MulMap
kpeter@80	950	template<typename M1, typename M2>
kpeter@80	951	class DivMap : public MapBase<typename M1::Key, typename M1::Value> {
kpeter@80	952	const M1 &_m1;
kpeter@80	953	const M2 &_m2;
kpeter@80	954	public:
kpeter@559	955	///\e
kpeter@559	956	typedef typename M1::Key Key;
kpeter@559	957	///\e
kpeter@559	958	typedef typename M1::Value Value;
kpeter@80	959
kpeter@80	960	/// Constructor
kpeter@80	961	DivMap(const M1 &m1,const M2 &m2) : _m1(m1), _m2(m2) {}
kpeter@559	962	///\e
kpeter@80	963	Value operator[](const Key &k) const { return _m1[k]/_m2[k]; }
kpeter@80	964	};
kpeter@80	965
kpeter@301	966	/// Returns a \c DivMap class
kpeter@301	967
kpeter@301	968	/// This function just returns a \c DivMap class.
kpeter@80	969	///
kpeter@80	970	/// For example, if \c m1 and \c m2 are both maps with \c double
kpeter@80	971	/// values, then <tt>divMap(m1,m2)[x]</tt> will be equal to
kpeter@80	972	/// <tt>m1[x]/m2[x]</tt>.
kpeter@80	973	///
kpeter@80	974	/// \relates DivMap
kpeter@80	975	template<typename M1, typename M2>
kpeter@80	976	inline DivMap<M1, M2> divMap(const M1 &m1,const M2 &m2) {
kpeter@80	977	return DivMap<M1, M2>(m1,m2);
kpeter@80	978	}
kpeter@80	979
kpeter@80	980
kpeter@80	981	/// Shifts a map with a constant.
kpeter@80	982
kpeter@82	983	/// This \ref concepts::ReadMap "read-only map" returns the sum of
kpeter@80	984	/// the given map and a constant value (i.e. it shifts the map with
kpeter@80	985	/// the constant). Its \c Key and \c Value are inherited from \c M.
kpeter@80	986	///
kpeter@80	987	/// Actually,
kpeter@80	988	/// \code
kpeter@80	989	/// ShiftMap<M> sh(m,v);
kpeter@80	990	/// \endcode
kpeter@80	991	/// is equivalent to
kpeter@80	992	/// \code
kpeter@80	993	/// ConstMap<M::Key, M::Value> cm(v);
kpeter@80	994	/// AddMap<M, ConstMap<M::Key, M::Value> > sh(m,cm);
kpeter@80	995	/// \endcode
kpeter@80	996	///
kpeter@80	997	/// The simplest way of using this map is through the shiftMap()
kpeter@80	998	/// function.
kpeter@80	999	///
kpeter@80	1000	/// \sa ShiftWriteMap
kpeter@80	1001	template<typename M, typename C = typename M::Value>
alpar@25	1002	class ShiftMap : public MapBase<typename M::Key, typename M::Value> {
kpeter@80	1003	const M &_m;
kpeter@80	1004	C _v;
alpar@25	1005	public:
kpeter@559	1006	///\e
kpeter@559	1007	typedef typename M::Key Key;
kpeter@559	1008	///\e
kpeter@559	1009	typedef typename M::Value Value;
alpar@25	1010
kpeter@80	1011	/// Constructor
alpar@25	1012
kpeter@80	1013	/// Constructor.
kpeter@80	1014	/// \param m The undelying map.
kpeter@80	1015	/// \param v The constant value.
kpeter@80	1016	ShiftMap(const M &m, const C &v) : _m(m), _v(v) {}
kpeter@559	1017	///\e
kpeter@80	1018	Value operator[](const Key &k) const { return _m[k]+_v; }
alpar@25	1019	};
alpar@25	1020
kpeter@80	1021	/// Shifts a map with a constant (read-write version).
alpar@25	1022
kpeter@80	1023	/// This \ref concepts::ReadWriteMap "read-write map" returns the sum
kpeter@80	1024	/// of the given map and a constant value (i.e. it shifts the map with
kpeter@80	1025	/// the constant). Its \c Key and \c Value are inherited from \c M.
kpeter@80	1026	/// It makes also possible to write the map.
alpar@25	1027	///
kpeter@80	1028	/// The simplest way of using this map is through the shiftWriteMap()
kpeter@80	1029	/// function.
kpeter@80	1030	///
kpeter@80	1031	/// \sa ShiftMap
kpeter@80	1032	template<typename M, typename C = typename M::Value>
alpar@25	1033	class ShiftWriteMap : public MapBase<typename M::Key, typename M::Value> {
kpeter@80	1034	M &_m;
kpeter@80	1035	C _v;
alpar@25	1036	public:
kpeter@559	1037	///\e
kpeter@559	1038	typedef typename M::Key Key;
kpeter@559	1039	///\e
kpeter@559	1040	typedef typename M::Value Value;
alpar@25	1041
kpeter@80	1042	/// Constructor
alpar@25	1043
kpeter@80	1044	/// Constructor.
kpeter@80	1045	/// \param m The undelying map.
kpeter@80	1046	/// \param v The constant value.
kpeter@80	1047	ShiftWriteMap(M &m, const C &v) : _m(m), _v(v) {}
kpeter@559	1048	///\e
kpeter@80	1049	Value operator[](const Key &k) const { return _m[k]+_v; }
kpeter@559	1050	///\e
kpeter@80	1051	void set(const Key &k, const Value &v) { _m.set(k, v-_v); }
alpar@25	1052	};
alpar@25	1053
kpeter@301	1054	/// Returns a \c ShiftMap class
kpeter@301	1055
kpeter@301	1056	/// This function just returns a \c ShiftMap class.
kpeter@80	1057	///
kpeter@80	1058	/// For example, if \c m is a map with \c double values and \c v is
kpeter@80	1059	/// \c double, then <tt>shiftMap(m,v)[x]</tt> will be equal to
kpeter@80	1060	/// <tt>m[x]+v</tt>.
kpeter@80	1061	///
kpeter@80	1062	/// \relates ShiftMap
kpeter@80	1063	template<typename M, typename C>
kpeter@80	1064	inline ShiftMap<M, C> shiftMap(const M &m, const C &v) {
alpar@25	1065	return ShiftMap<M, C>(m,v);
alpar@25	1066	}
alpar@25	1067
kpeter@301	1068	/// Returns a \c ShiftWriteMap class
kpeter@301	1069
kpeter@301	1070	/// This function just returns a \c ShiftWriteMap class.
kpeter@80	1071	///
kpeter@80	1072	/// For example, if \c m is a map with \c double values and \c v is
kpeter@80	1073	/// \c double, then <tt>shiftWriteMap(m,v)[x]</tt> will be equal to
kpeter@80	1074	/// <tt>m[x]+v</tt>.
kpeter@80	1075	/// Moreover it makes also possible to write the map.
kpeter@80	1076	///
kpeter@80	1077	/// \relates ShiftWriteMap
kpeter@80	1078	template<typename M, typename C>
kpeter@80	1079	inline ShiftWriteMap<M, C> shiftWriteMap(M &m, const C &v) {
alpar@25	1080	return ShiftWriteMap<M, C>(m,v);
alpar@25	1081	}
alpar@25	1082
alpar@25	1083
kpeter@80	1084	/// Scales a map with a constant.
kpeter@80	1085
kpeter@82	1086	/// This \ref concepts::ReadMap "read-only map" returns the value of
kpeter@80	1087	/// the given map multiplied from the left side with a constant value.
kpeter@80	1088	/// Its \c Key and \c Value are inherited from \c M.
alpar@26	1089	///
kpeter@80	1090	/// Actually,
kpeter@80	1091	/// \code
kpeter@80	1092	/// ScaleMap<M> sc(m,v);
kpeter@80	1093	/// \endcode
kpeter@80	1094	/// is equivalent to
kpeter@80	1095	/// \code
kpeter@80	1096	/// ConstMap<M::Key, M::Value> cm(v);
kpeter@80	1097	/// MulMap<ConstMap<M::Key, M::Value>, M> sc(cm,m);
kpeter@80	1098	/// \endcode
alpar@25	1099	///
kpeter@80	1100	/// The simplest way of using this map is through the scaleMap()
kpeter@80	1101	/// function.
alpar@25	1102	///
kpeter@80	1103	/// \sa ScaleWriteMap
kpeter@80	1104	template<typename M, typename C = typename M::Value>
alpar@25	1105	class ScaleMap : public MapBase<typename M::Key, typename M::Value> {
kpeter@80	1106	const M &_m;
kpeter@80	1107	C _v;
alpar@25	1108	public:
kpeter@559	1109	///\e
kpeter@559	1110	typedef typename M::Key Key;
kpeter@559	1111	///\e
kpeter@559	1112	typedef typename M::Value Value;
alpar@25	1113
kpeter@80	1114	/// Constructor
alpar@25	1115
kpeter@80	1116	/// Constructor.
kpeter@80	1117	/// \param m The undelying map.
kpeter@80	1118	/// \param v The constant value.
kpeter@80	1119	ScaleMap(const M &m, const C &v) : _m(m), _v(v) {}
kpeter@559	1120	///\e
kpeter@80	1121	Value operator[](const Key &k) const { return _v*_m[k]; }
alpar@25	1122	};
alpar@25	1123
kpeter@80	1124	/// Scales a map with a constant (read-write version).
alpar@25	1125
kpeter@80	1126	/// This \ref concepts::ReadWriteMap "read-write map" returns the value of
kpeter@80	1127	/// the given map multiplied from the left side with a constant value.
kpeter@80	1128	/// Its \c Key and \c Value are inherited from \c M.
kpeter@80	1129	/// It can also be used as write map if the \c / operator is defined
kpeter@80	1130	/// between \c Value and \c C and the given multiplier is not zero.
kpeter@29	1131	///
kpeter@80	1132	/// The simplest way of using this map is through the scaleWriteMap()
kpeter@80	1133	/// function.
kpeter@80	1134	///
kpeter@80	1135	/// \sa ScaleMap
kpeter@80	1136	template<typename M, typename C = typename M::Value>
alpar@25	1137	class ScaleWriteMap : public MapBase<typename M::Key, typename M::Value> {
kpeter@80	1138	M &_m;
kpeter@80	1139	C _v;
alpar@25	1140	public:
kpeter@559	1141	///\e
kpeter@559	1142	typedef typename M::Key Key;
kpeter@559	1143	///\e
kpeter@559	1144	typedef typename M::Value Value;
alpar@25	1145
kpeter@80	1146	/// Constructor
alpar@25	1147
kpeter@80	1148	/// Constructor.
kpeter@80	1149	/// \param m The undelying map.
kpeter@80	1150	/// \param v The constant value.
kpeter@80	1151	ScaleWriteMap(M &m, const C &v) : _m(m), _v(v) {}
kpeter@559	1152	///\e
kpeter@80	1153	Value operator[](const Key &k) const { return _v*_m[k]; }
kpeter@559	1154	///\e
kpeter@80	1155	void set(const Key &k, const Value &v) { _m.set(k, v/_v); }
alpar@25	1156	};
alpar@25	1157
kpeter@301	1158	/// Returns a \c ScaleMap class
kpeter@301	1159
kpeter@301	1160	/// This function just returns a \c ScaleMap class.
kpeter@80	1161	///
kpeter@80	1162	/// For example, if \c m is a map with \c double values and \c v is
kpeter@80	1163	/// \c double, then <tt>scaleMap(m,v)[x]</tt> will be equal to
kpeter@80	1164	/// <tt>v*m[x]</tt>.
kpeter@80	1165	///
kpeter@80	1166	/// \relates ScaleMap
kpeter@80	1167	template<typename M, typename C>
kpeter@80	1168	inline ScaleMap<M, C> scaleMap(const M &m, const C &v) {
alpar@25	1169	return ScaleMap<M, C>(m,v);
alpar@25	1170	}
alpar@25	1171
kpeter@301	1172	/// Returns a \c ScaleWriteMap class
kpeter@301	1173
kpeter@301	1174	/// This function just returns a \c ScaleWriteMap class.
kpeter@80	1175	///
kpeter@80	1176	/// For example, if \c m is a map with \c double values and \c v is
kpeter@80	1177	/// \c double, then <tt>scaleWriteMap(m,v)[x]</tt> will be equal to
kpeter@80	1178	/// <tt>v*m[x]</tt>.
kpeter@80	1179	/// Moreover it makes also possible to write the map.
kpeter@80	1180	///
kpeter@80	1181	/// \relates ScaleWriteMap
kpeter@80	1182	template<typename M, typename C>
kpeter@80	1183	inline ScaleWriteMap<M, C> scaleWriteMap(M &m, const C &v) {
alpar@25	1184	return ScaleWriteMap<M, C>(m,v);
alpar@25	1185	}
alpar@25	1186
alpar@25	1187
kpeter@80	1188	/// Negative of a map
alpar@25	1189
kpeter@82	1190	/// This \ref concepts::ReadMap "read-only map" returns the negative
kpeter@80	1191	/// of the values of the given map (using the unary \c - operator).
kpeter@80	1192	/// Its \c Key and \c Value are inherited from \c M.
alpar@25	1193	///
kpeter@80	1194	/// If M::Value is \c int, \c double etc., then
kpeter@80	1195	/// \code
kpeter@80	1196	/// NegMap<M> neg(m);
kpeter@80	1197	/// \endcode
kpeter@80	1198	/// is equivalent to
kpeter@80	1199	/// \code
kpeter@80	1200	/// ScaleMap<M> neg(m,-1);
kpeter@80	1201	/// \endcode
kpeter@29	1202	///
kpeter@80	1203	/// The simplest way of using this map is through the negMap()
kpeter@80	1204	/// function.
kpeter@29	1205	///
kpeter@80	1206	/// \sa NegWriteMap
kpeter@80	1207	template<typename M>
alpar@25	1208	class NegMap : public MapBase<typename M::Key, typename M::Value> {
kpeter@80	1209	const M& _m;
alpar@25	1210	public:
kpeter@559	1211	///\e
kpeter@559	1212	typedef typename M::Key Key;
kpeter@559	1213	///\e
kpeter@559	1214	typedef typename M::Value Value;
alpar@25	1215
kpeter@80	1216	/// Constructor
kpeter@80	1217	NegMap(const M &m) : _m(m) {}
kpeter@559	1218	///\e
kpeter@80	1219	Value operator[](const Key &k) const { return -_m[k]; }
alpar@25	1220	};
alpar@25	1221
kpeter@80	1222	/// Negative of a map (read-write version)
kpeter@80	1223
kpeter@80	1224	/// This \ref concepts::ReadWriteMap "read-write map" returns the
kpeter@80	1225	/// negative of the values of the given map (using the unary \c -
kpeter@80	1226	/// operator).
kpeter@80	1227	/// Its \c Key and \c Value are inherited from \c M.
kpeter@80	1228	/// It makes also possible to write the map.
kpeter@80	1229	///
kpeter@80	1230	/// If M::Value is \c int, \c double etc., then
kpeter@80	1231	/// \code
kpeter@80	1232	/// NegWriteMap<M> neg(m);
kpeter@80	1233	/// \endcode
kpeter@80	1234	/// is equivalent to
kpeter@80	1235	/// \code
kpeter@80	1236	/// ScaleWriteMap<M> neg(m,-1);
kpeter@80	1237	/// \endcode
kpeter@80	1238	///
kpeter@80	1239	/// The simplest way of using this map is through the negWriteMap()
kpeter@80	1240	/// function.
kpeter@29	1241	///
kpeter@29	1242	/// \sa NegMap
kpeter@80	1243	template<typename M>
alpar@25	1244	class NegWriteMap : public MapBase<typename M::Key, typename M::Value> {
kpeter@80	1245	M &_m;
alpar@25	1246	public:
kpeter@559	1247	///\e
kpeter@559	1248	typedef typename M::Key Key;
kpeter@559	1249	///\e
kpeter@559	1250	typedef typename M::Value Value;
alpar@25	1251
kpeter@80	1252	/// Constructor
kpeter@80	1253	NegWriteMap(M &m) : _m(m) {}
kpeter@559	1254	///\e
kpeter@80	1255	Value operator[](const Key &k) const { return -_m[k]; }
kpeter@559	1256	///\e
kpeter@80	1257	void set(const Key &k, const Value &v) { _m.set(k, -v); }
alpar@25	1258	};
alpar@25	1259
kpeter@301	1260	/// Returns a \c NegMap class
kpeter@301	1261
kpeter@301	1262	/// This function just returns a \c NegMap class.
kpeter@80	1263	///
kpeter@80	1264	/// For example, if \c m is a map with \c double values, then
kpeter@80	1265	/// <tt>negMap(m)[x]</tt> will be equal to <tt>-m[x]</tt>.
kpeter@80	1266	///
kpeter@80	1267	/// \relates NegMap
kpeter@80	1268	template <typename M>
alpar@25	1269	inline NegMap<M> negMap(const M &m) {
alpar@25	1270	return NegMap<M>(m);
alpar@25	1271	}
alpar@25	1272
kpeter@301	1273	/// Returns a \c NegWriteMap class
kpeter@301	1274
kpeter@301	1275	/// This function just returns a \c NegWriteMap class.
kpeter@80	1276	///
kpeter@80	1277	/// For example, if \c m is a map with \c double values, then
kpeter@80	1278	/// <tt>negWriteMap(m)[x]</tt> will be equal to <tt>-m[x]</tt>.
kpeter@80	1279	/// Moreover it makes also possible to write the map.
kpeter@80	1280	///
kpeter@80	1281	/// \relates NegWriteMap
kpeter@80	1282	template <typename M>
kpeter@80	1283	inline NegWriteMap<M> negWriteMap(M &m) {
alpar@25	1284	return NegWriteMap<M>(m);
alpar@25	1285	}
alpar@25	1286
alpar@25	1287
kpeter@80	1288	/// Absolute value of a map
kpeter@80	1289
kpeter@82	1290	/// This \ref concepts::ReadMap "read-only map" returns the absolute
kpeter@80	1291	/// value of the values of the given map.
kpeter@80	1292	/// Its \c Key and \c Value are inherited from \c M.
kpeter@80	1293	/// \c Value must be comparable to \c 0 and the unary \c -
kpeter@80	1294	/// operator must be defined for it, of course.
kpeter@80	1295	///
kpeter@80	1296	/// The simplest way of using this map is through the absMap()
kpeter@80	1297	/// function.
kpeter@80	1298	template<typename M>
alpar@25	1299	class AbsMap : public MapBase<typename M::Key, typename M::Value> {
kpeter@80	1300	const M &_m;
alpar@25	1301	public:
kpeter@559	1302	///\e
kpeter@559	1303	typedef typename M::Key Key;
kpeter@559	1304	///\e
kpeter@559	1305	typedef typename M::Value Value;
alpar@25	1306
kpeter@80	1307	/// Constructor
kpeter@80	1308	AbsMap(const M &m) : _m(m) {}
kpeter@559	1309	///\e
kpeter@80	1310	Value operator[](const Key &k) const {
kpeter@80	1311	Value tmp = _m[k];
alpar@25	1312	return tmp >= 0 ? tmp : -tmp;
alpar@25	1313	}
alpar@25	1314
alpar@25	1315	};
alpar@25	1316
kpeter@301	1317	/// Returns an \c AbsMap class
kpeter@301	1318
kpeter@301	1319	/// This function just returns an \c AbsMap class.
kpeter@80	1320	///
kpeter@80	1321	/// For example, if \c m is a map with \c double values, then
kpeter@80	1322	/// <tt>absMap(m)[x]</tt> will be equal to <tt>m[x]</tt> if
kpeter@80	1323	/// it is positive or zero and <tt>-m[x]</tt> if <tt>m[x]</tt> is
kpeter@80	1324	/// negative.
kpeter@80	1325	///
kpeter@80	1326	/// \relates AbsMap
kpeter@80	1327	template<typename M>
alpar@25	1328	inline AbsMap<M> absMap(const M &m) {
alpar@25	1329	return AbsMap<M>(m);
alpar@25	1330	}
alpar@25	1331
kpeter@82	1332	/// @}
alpar@209	1333
kpeter@82	1334	// Logical maps and map adaptors:
kpeter@82	1335
kpeter@82	1336	/// \addtogroup maps
kpeter@82	1337	/// @{
kpeter@82	1338
kpeter@82	1339	/// Constant \c true map.
kpeter@82	1340
kpeter@82	1341	/// This \ref concepts::ReadMap "read-only map" assigns \c true to
kpeter@82	1342	/// each key.
kpeter@82	1343	///
kpeter@82	1344	/// Note that
kpeter@82	1345	/// \code
kpeter@82	1346	/// TrueMap<K> tm;
kpeter@82	1347	/// \endcode
kpeter@82	1348	/// is equivalent to
kpeter@82	1349	/// \code
kpeter@82	1350	/// ConstMap<K,bool> tm(true);
kpeter@82	1351	/// \endcode
kpeter@82	1352	///
kpeter@82	1353	/// \sa FalseMap
kpeter@82	1354	/// \sa ConstMap
kpeter@82	1355	template <typename K>
kpeter@82	1356	class TrueMap : public MapBase<K, bool> {
kpeter@82	1357	public:
kpeter@559	1358	///\e
kpeter@559	1359	typedef K Key;
kpeter@559	1360	///\e
kpeter@559	1361	typedef bool Value;
kpeter@82	1362
kpeter@82	1363	/// Gives back \c true.
kpeter@82	1364	Value operator[](const Key&) const { return true; }
kpeter@82	1365	};
kpeter@82	1366
kpeter@301	1367	/// Returns a \c TrueMap class
kpeter@301	1368
kpeter@301	1369	/// This function just returns a \c TrueMap class.
kpeter@82	1370	/// \relates TrueMap
kpeter@82	1371	template<typename K>
kpeter@82	1372	inline TrueMap<K> trueMap() {
kpeter@82	1373	return TrueMap<K>();
kpeter@82	1374	}
kpeter@82	1375
kpeter@82	1376
kpeter@82	1377	/// Constant \c false map.
kpeter@82	1378
kpeter@82	1379	/// This \ref concepts::ReadMap "read-only map" assigns \c false to
kpeter@82	1380	/// each key.
kpeter@82	1381	///
kpeter@82	1382	/// Note that
kpeter@82	1383	/// \code
kpeter@82	1384	/// FalseMap<K> fm;
kpeter@82	1385	/// \endcode
kpeter@82	1386	/// is equivalent to
kpeter@82	1387	/// \code
kpeter@82	1388	/// ConstMap<K,bool> fm(false);
kpeter@82	1389	/// \endcode
kpeter@82	1390	///
kpeter@82	1391	/// \sa TrueMap
kpeter@82	1392	/// \sa ConstMap
kpeter@82	1393	template <typename K>
kpeter@82	1394	class FalseMap : public MapBase<K, bool> {
kpeter@82	1395	public:
kpeter@559	1396	///\e
kpeter@559	1397	typedef K Key;
kpeter@559	1398	///\e
kpeter@559	1399	typedef bool Value;
kpeter@82	1400
kpeter@82	1401	/// Gives back \c false.
kpeter@82	1402	Value operator[](const Key&) const { return false; }
kpeter@82	1403	};
kpeter@82	1404
kpeter@301	1405	/// Returns a \c FalseMap class
kpeter@301	1406
kpeter@301	1407	/// This function just returns a \c FalseMap class.
kpeter@82	1408	/// \relates FalseMap
kpeter@82	1409	template<typename K>
kpeter@82	1410	inline FalseMap<K> falseMap() {
kpeter@82	1411	return FalseMap<K>();
kpeter@82	1412	}
kpeter@82	1413
kpeter@82	1414	/// @}
kpeter@82	1415
kpeter@82	1416	/// \addtogroup map_adaptors
kpeter@82	1417	/// @{
kpeter@82	1418
kpeter@82	1419	/// Logical 'and' of two maps
kpeter@82	1420
kpeter@82	1421	/// This \ref concepts::ReadMap "read-only map" returns the logical
kpeter@82	1422	/// 'and' of the values of the two given maps.
kpeter@82	1423	/// Its \c Key type is inherited from \c M1 and its \c Value type is
kpeter@82	1424	/// \c bool. \c M2::Key must be convertible to \c M1::Key.
kpeter@82	1425	///
kpeter@82	1426	/// If \c m1 is of type \c M1 and \c m2 is of \c M2, then for
kpeter@82	1427	/// \code
kpeter@82	1428	/// AndMap<M1,M2> am(m1,m2);
kpeter@82	1429	/// \endcode
kpeter@82	1430	/// <tt>am[x]</tt> will be equal to <tt>m1[x]&&m2[x]</tt>.
kpeter@82	1431	///
kpeter@82	1432	/// The simplest way of using this map is through the andMap()
kpeter@82	1433	/// function.
kpeter@82	1434	///
kpeter@82	1435	/// \sa OrMap
kpeter@82	1436	/// \sa NotMap, NotWriteMap
kpeter@82	1437	template<typename M1, typename M2>
kpeter@82	1438	class AndMap : public MapBase<typename M1::Key, bool> {
kpeter@82	1439	const M1 &_m1;
kpeter@82	1440	const M2 &_m2;
kpeter@82	1441	public:
kpeter@559	1442	///\e
kpeter@559	1443	typedef typename M1::Key Key;
kpeter@559	1444	///\e
kpeter@559	1445	typedef bool Value;
kpeter@82	1446
kpeter@82	1447	/// Constructor
kpeter@82	1448	AndMap(const M1 &m1, const M2 &m2) : _m1(m1), _m2(m2) {}
kpeter@559	1449	///\e
kpeter@82	1450	Value operator[](const Key &k) const { return _m1[k]&&_m2[k]; }
kpeter@82	1451	};
kpeter@82	1452
kpeter@301	1453	/// Returns an \c AndMap class
kpeter@301	1454
kpeter@301	1455	/// This function just returns an \c AndMap class.
kpeter@82	1456	///
kpeter@82	1457	/// For example, if \c m1 and \c m2 are both maps with \c bool values,
kpeter@82	1458	/// then <tt>andMap(m1,m2)[x]</tt> will be equal to
kpeter@82	1459	/// <tt>m1[x]&&m2[x]</tt>.
kpeter@82	1460	///
kpeter@82	1461	/// \relates AndMap
kpeter@82	1462	template<typename M1, typename M2>
kpeter@82	1463	inline AndMap<M1, M2> andMap(const M1 &m1, const M2 &m2) {
kpeter@82	1464	return AndMap<M1, M2>(m1,m2);
kpeter@82	1465	}
kpeter@82	1466
kpeter@82	1467
kpeter@82	1468	/// Logical 'or' of two maps
kpeter@82	1469
kpeter@82	1470	/// This \ref concepts::ReadMap "read-only map" returns the logical
kpeter@82	1471	/// 'or' of the values of the two given maps.
kpeter@82	1472	/// Its \c Key type is inherited from \c M1 and its \c Value type is
kpeter@82	1473	/// \c bool. \c M2::Key must be convertible to \c M1::Key.
kpeter@82	1474	///
kpeter@82	1475	/// If \c m1 is of type \c M1 and \c m2 is of \c M2, then for
kpeter@82	1476	/// \code
kpeter@82	1477	/// OrMap<M1,M2> om(m1,m2);
kpeter@82	1478	/// \endcode
kpeter@82	1479	/// <tt>om[x]</tt> will be equal to <tt>m1[x]\|\|m2[x]</tt>.
kpeter@82	1480	///
kpeter@82	1481	/// The simplest way of using this map is through the orMap()
kpeter@82	1482	/// function.
kpeter@82	1483	///
kpeter@82	1484	/// \sa AndMap
kpeter@82	1485	/// \sa NotMap, NotWriteMap
kpeter@82	1486	template<typename M1, typename M2>
kpeter@82	1487	class OrMap : public MapBase<typename M1::Key, bool> {
kpeter@82	1488	const M1 &_m1;
kpeter@82	1489	const M2 &_m2;
kpeter@82	1490	public:
kpeter@559	1491	///\e
kpeter@559	1492	typedef typename M1::Key Key;
kpeter@559	1493	///\e
kpeter@559	1494	typedef bool Value;
kpeter@82	1495
kpeter@82	1496	/// Constructor
kpeter@82	1497	OrMap(const M1 &m1, const M2 &m2) : _m1(m1), _m2(m2) {}
kpeter@559	1498	///\e
kpeter@82	1499	Value operator[](const Key &k) const { return _m1[k]\|\|_m2[k]; }
kpeter@82	1500	};
kpeter@82	1501
kpeter@301	1502	/// Returns an \c OrMap class
kpeter@301	1503
kpeter@301	1504	/// This function just returns an \c OrMap class.
kpeter@82	1505	///
kpeter@82	1506	/// For example, if \c m1 and \c m2 are both maps with \c bool values,
kpeter@82	1507	/// then <tt>orMap(m1,m2)[x]</tt> will be equal to
kpeter@82	1508	/// <tt>m1[x]\|\|m2[x]</tt>.
kpeter@82	1509	///
kpeter@82	1510	/// \relates OrMap
kpeter@82	1511	template<typename M1, typename M2>
kpeter@82	1512	inline OrMap<M1, M2> orMap(const M1 &m1, const M2 &m2) {
kpeter@82	1513	return OrMap<M1, M2>(m1,m2);
kpeter@82	1514	}
kpeter@82	1515
alpar@25	1516
kpeter@80	1517	/// Logical 'not' of a map
kpeter@80	1518
kpeter@82	1519	/// This \ref concepts::ReadMap "read-only map" returns the logical
kpeter@80	1520	/// negation of the values of the given map.
kpeter@80	1521	/// Its \c Key is inherited from \c M and its \c Value is \c bool.
alpar@25	1522	///
kpeter@80	1523	/// The simplest way of using this map is through the notMap()
kpeter@80	1524	/// function.
alpar@25	1525	///
kpeter@80	1526	/// \sa NotWriteMap
kpeter@80	1527	template <typename M>
alpar@25	1528	class NotMap : public MapBase<typename M::Key, bool> {
kpeter@80	1529	const M &_m;
alpar@25	1530	public:
kpeter@559	1531	///\e
kpeter@559	1532	typedef typename M::Key Key;
kpeter@559	1533	///\e
kpeter@559	1534	typedef bool Value;
alpar@25	1535
alpar@25	1536	/// Constructor
kpeter@80	1537	NotMap(const M &m) : _m(m) {}
kpeter@559	1538	///\e
kpeter@80	1539	Value operator[](const Key &k) const { return !_m[k]; }
alpar@25	1540	};
alpar@25	1541
kpeter@80	1542	/// Logical 'not' of a map (read-write version)
kpeter@80	1543
kpeter@80	1544	/// This \ref concepts::ReadWriteMap "read-write map" returns the
kpeter@80	1545	/// logical negation of the values of the given map.
kpeter@80	1546	/// Its \c Key is inherited from \c M and its \c Value is \c bool.
kpeter@80	1547	/// It makes also possible to write the map. When a value is set,
kpeter@80	1548	/// the opposite value is set to the original map.
kpeter@29	1549	///
kpeter@80	1550	/// The simplest way of using this map is through the notWriteMap()
kpeter@80	1551	/// function.
kpeter@80	1552	///
kpeter@80	1553	/// \sa NotMap
kpeter@80	1554	template <typename M>
alpar@25	1555	class NotWriteMap : public MapBase<typename M::Key, bool> {
kpeter@80	1556	M &_m;
alpar@25	1557	public:
kpeter@559	1558	///\e
kpeter@559	1559	typedef typename M::Key Key;
kpeter@559	1560	///\e
kpeter@559	1561	typedef bool Value;
alpar@25	1562
alpar@25	1563	/// Constructor
kpeter@80	1564	NotWriteMap(M &m) : _m(m) {}
kpeter@559	1565	///\e
kpeter@80	1566	Value operator[](const Key &k) const { return !_m[k]; }
kpeter@559	1567	///\e
kpeter@80	1568	void set(const Key &k, bool v) { _m.set(k, !v); }
alpar@25	1569	};
kpeter@80	1570
kpeter@301	1571	/// Returns a \c NotMap class
kpeter@301	1572
kpeter@301	1573	/// This function just returns a \c NotMap class.
kpeter@80	1574	///
kpeter@80	1575	/// For example, if \c m is a map with \c bool values, then
kpeter@80	1576	/// <tt>notMap(m)[x]</tt> will be equal to <tt>!m[x]</tt>.
kpeter@80	1577	///
kpeter@80	1578	/// \relates NotMap
kpeter@80	1579	template <typename M>
alpar@25	1580	inline NotMap<M> notMap(const M &m) {
alpar@25	1581	return NotMap<M>(m);
alpar@25	1582	}
kpeter@80	1583
kpeter@301	1584	/// Returns a \c NotWriteMap class
kpeter@301	1585
kpeter@301	1586	/// This function just returns a \c NotWriteMap class.
kpeter@80	1587	///
kpeter@80	1588	/// For example, if \c m is a map with \c bool values, then
kpeter@80	1589	/// <tt>notWriteMap(m)[x]</tt> will be equal to <tt>!m[x]</tt>.
kpeter@80	1590	/// Moreover it makes also possible to write the map.
kpeter@80	1591	///
kpeter@80	1592	/// \relates NotWriteMap
kpeter@80	1593	template <typename M>
kpeter@80	1594	inline NotWriteMap<M> notWriteMap(M &m) {
alpar@25	1595	return NotWriteMap<M>(m);
alpar@25	1596	}
alpar@25	1597
kpeter@82	1598
kpeter@82	1599	/// Combination of two maps using the \c == operator
kpeter@82	1600
kpeter@82	1601	/// This \ref concepts::ReadMap "read-only map" assigns \c true to
kpeter@82	1602	/// the keys for which the corresponding values of the two maps are
kpeter@82	1603	/// equal.
kpeter@82	1604	/// Its \c Key type is inherited from \c M1 and its \c Value type is
kpeter@82	1605	/// \c bool. \c M2::Key must be convertible to \c M1::Key.
kpeter@82	1606	///
kpeter@82	1607	/// If \c m1 is of type \c M1 and \c m2 is of \c M2, then for
kpeter@82	1608	/// \code
kpeter@82	1609	/// EqualMap<M1,M2> em(m1,m2);
kpeter@82	1610	/// \endcode
kpeter@82	1611	/// <tt>em[x]</tt> will be equal to <tt>m1[x]==m2[x]</tt>.
kpeter@82	1612	///
kpeter@82	1613	/// The simplest way of using this map is through the equalMap()
kpeter@82	1614	/// function.
kpeter@82	1615	///
kpeter@82	1616	/// \sa LessMap
kpeter@82	1617	template<typename M1, typename M2>
kpeter@82	1618	class EqualMap : public MapBase<typename M1::Key, bool> {
kpeter@82	1619	const M1 &_m1;
kpeter@82	1620	const M2 &_m2;
kpeter@82	1621	public:
kpeter@559	1622	///\e
kpeter@559	1623	typedef typename M1::Key Key;
kpeter@559	1624	///\e
kpeter@559	1625	typedef bool Value;
kpeter@82	1626
kpeter@82	1627	/// Constructor
kpeter@82	1628	EqualMap(const M1 &m1, const M2 &m2) : _m1(m1), _m2(m2) {}
kpeter@559	1629	///\e
kpeter@82	1630	Value operator[](const Key &k) const { return _m1[k]==_m2[k]; }
kpeter@82	1631	};
kpeter@82	1632
kpeter@301	1633	/// Returns an \c EqualMap class
kpeter@301	1634
kpeter@301	1635	/// This function just returns an \c EqualMap class.
kpeter@82	1636	///
kpeter@82	1637	/// For example, if \c m1 and \c m2 are maps with keys and values of
kpeter@82	1638	/// the same type, then <tt>equalMap(m1,m2)[x]</tt> will be equal to
kpeter@82	1639	/// <tt>m1[x]==m2[x]</tt>.
kpeter@82	1640	///
kpeter@82	1641	/// \relates EqualMap
kpeter@82	1642	template<typename M1, typename M2>
kpeter@82	1643	inline EqualMap<M1, M2> equalMap(const M1 &m1, const M2 &m2) {
kpeter@82	1644	return EqualMap<M1, M2>(m1,m2);
kpeter@82	1645	}
kpeter@82	1646
kpeter@82	1647
kpeter@82	1648	/// Combination of two maps using the \c < operator
kpeter@82	1649
kpeter@82	1650	/// This \ref concepts::ReadMap "read-only map" assigns \c true to
kpeter@82	1651	/// the keys for which the corresponding value of the first map is
kpeter@82	1652	/// less then the value of the second map.
kpeter@82	1653	/// Its \c Key type is inherited from \c M1 and its \c Value type is
kpeter@82	1654	/// \c bool. \c M2::Key must be convertible to \c M1::Key.
kpeter@82	1655	///
kpeter@82	1656	/// If \c m1 is of type \c M1 and \c m2 is of \c M2, then for
kpeter@82	1657	/// \code
kpeter@82	1658	/// LessMap<M1,M2> lm(m1,m2);
kpeter@82	1659	/// \endcode
kpeter@82	1660	/// <tt>lm[x]</tt> will be equal to <tt>m1[x]<m2[x]</tt>.
kpeter@82	1661	///
kpeter@82	1662	/// The simplest way of using this map is through the lessMap()
kpeter@82	1663	/// function.
kpeter@82	1664	///
kpeter@82	1665	/// \sa EqualMap
kpeter@82	1666	template<typename M1, typename M2>
kpeter@82	1667	class LessMap : public MapBase<typename M1::Key, bool> {
kpeter@82	1668	const M1 &_m1;
kpeter@82	1669	const M2 &_m2;
kpeter@82	1670	public:
kpeter@559	1671	///\e
kpeter@559	1672	typedef typename M1::Key Key;
kpeter@559	1673	///\e
kpeter@559	1674	typedef bool Value;
kpeter@82	1675
kpeter@82	1676	/// Constructor
kpeter@82	1677	LessMap(const M1 &m1, const M2 &m2) : _m1(m1), _m2(m2) {}
kpeter@559	1678	///\e
kpeter@82	1679	Value operator[](const Key &k) const { return _m1[k]<_m2[k]; }
kpeter@82	1680	};
kpeter@82	1681
kpeter@301	1682	/// Returns an \c LessMap class
kpeter@301	1683
kpeter@301	1684	/// This function just returns an \c LessMap class.
kpeter@82	1685	///
kpeter@82	1686	/// For example, if \c m1 and \c m2 are maps with keys and values of
kpeter@82	1687	/// the same type, then <tt>lessMap(m1,m2)[x]</tt> will be equal to
kpeter@82	1688	/// <tt>m1[x]<m2[x]</tt>.
kpeter@82	1689	///
kpeter@82	1690	/// \relates LessMap
kpeter@82	1691	template<typename M1, typename M2>
kpeter@82	1692	inline LessMap<M1, M2> lessMap(const M1 &m1, const M2 &m2) {
kpeter@82	1693	return LessMap<M1, M2>(m1,m2);
kpeter@82	1694	}
kpeter@82	1695
alpar@104	1696	namespace _maps_bits {
alpar@104	1697
alpar@104	1698	template <typename _Iterator, typename Enable = void>
alpar@104	1699	struct IteratorTraits {
alpar@104	1700	typedef typename std::iterator_traits<_Iterator>::value_type Value;
alpar@104	1701	};
alpar@104	1702
alpar@104	1703	template <typename _Iterator>
alpar@104	1704	struct IteratorTraits<_Iterator,
alpar@104	1705	typename exists<typename _Iterator::container_type>::type>
alpar@104	1706	{
alpar@104	1707	typedef typename _Iterator::container_type::value_type Value;
alpar@104	1708	};
alpar@104	1709
alpar@104	1710	}
alpar@104	1711
kpeter@314	1712	/// @}
kpeter@314	1713
kpeter@314	1714	/// \addtogroup maps
kpeter@314	1715	/// @{
kpeter@314	1716
alpar@104	1717	/// \brief Writable bool map for logging each \c true assigned element
alpar@104	1718	///
kpeter@159	1719	/// A \ref concepts::WriteMap "writable" bool map for logging
alpar@104	1720	/// each \c true assigned element, i.e it copies subsequently each
alpar@104	1721	/// keys set to \c true to the given iterator.
kpeter@159	1722	/// The most important usage of it is storing certain nodes or arcs
kpeter@159	1723	/// that were marked \c true by an algorithm.
alpar@104	1724	///
kpeter@159	1725	/// There are several algorithms that provide solutions through bool
kpeter@159	1726	/// maps and most of them assign \c true at most once for each key.
kpeter@159	1727	/// In these cases it is a natural request to store each \c true
kpeter@159	1728	/// assigned elements (in order of the assignment), which can be
kpeter@167	1729	/// easily done with LoggerBoolMap.
kpeter@159	1730	///
kpeter@167	1731	/// The simplest way of using this map is through the loggerBoolMap()
kpeter@159	1732	/// function.
kpeter@159	1733	///
kpeter@559	1734	/// \tparam IT The type of the iterator.
kpeter@559	1735	/// \tparam KEY The key type of the map. The default value set
kpeter@159	1736	/// according to the iterator type should work in most cases.
alpar@104	1737	///
alpar@104	1738	/// \note The container of the iterator must contain enough space
kpeter@159	1739	/// for the elements or the iterator should be an inserter iterator.
kpeter@159	1740	#ifdef DOXYGEN
kpeter@559	1741	template <typename IT, typename KEY>
kpeter@159	1742	#else
kpeter@559	1743	template <typename IT,
kpeter@559	1744	typename KEY = typename _maps_bits::IteratorTraits<IT>::Value>
kpeter@159	1745	#endif
kpeter@559	1746	class LoggerBoolMap : public MapBase<KEY, bool> {
alpar@104	1747	public:
kpeter@559	1748
kpeter@559	1749	///\e
kpeter@559	1750	typedef KEY Key;
kpeter@559	1751	///\e
alpar@104	1752	typedef bool Value;
kpeter@559	1753	///\e
kpeter@559	1754	typedef IT Iterator;
alpar@104	1755
alpar@104	1756	/// Constructor
kpeter@167	1757	LoggerBoolMap(Iterator it)
alpar@104	1758	: _begin(it), _end(it) {}
alpar@104	1759
alpar@104	1760	/// Gives back the given iterator set for the first key
alpar@104	1761	Iterator begin() const {
alpar@104	1762	return _begin;
alpar@104	1763	}
alpar@104	1764
alpar@104	1765	/// Gives back the the 'after the last' iterator
alpar@104	1766	Iterator end() const {
alpar@104	1767	return _end;
alpar@104	1768	}
alpar@104	1769
alpar@104	1770	/// The set function of the map
kpeter@159	1771	void set(const Key& key, Value value) {
alpar@104	1772	if (value) {
alpar@209	1773	*_end++ = key;
alpar@104	1774	}
alpar@104	1775	}
alpar@104	1776
alpar@104	1777	private:
alpar@104	1778	Iterator _begin;
kpeter@159	1779	Iterator _end;
alpar@104	1780	};
alpar@209	1781
kpeter@301	1782	/// Returns a \c LoggerBoolMap class
kpeter@301	1783
kpeter@301	1784	/// This function just returns a \c LoggerBoolMap class.
kpeter@159	1785	///
kpeter@159	1786	/// The most important usage of it is storing certain nodes or arcs
kpeter@159	1787	/// that were marked \c true by an algorithm.
kpeter@159	1788	/// For example it makes easier to store the nodes in the processing
kpeter@159	1789	/// order of Dfs algorithm, as the following examples show.
kpeter@159	1790	/// \code
kpeter@159	1791	/// std::vector<Node> v;
kpeter@167	1792	/// dfs(g,s).processedMap(loggerBoolMap(std::back_inserter(v))).run();
kpeter@159	1793	/// \endcode
kpeter@159	1794	/// \code
kpeter@159	1795	/// std::vector<Node> v(countNodes(g));
kpeter@167	1796	/// dfs(g,s).processedMap(loggerBoolMap(v.begin())).run();
kpeter@159	1797	/// \endcode
kpeter@159	1798	///
kpeter@159	1799	/// \note The container of the iterator must contain enough space
kpeter@159	1800	/// for the elements or the iterator should be an inserter iterator.
kpeter@159	1801	///
kpeter@167	1802	/// \note LoggerBoolMap is just \ref concepts::WriteMap "writable", so
kpeter@159	1803	/// it cannot be used when a readable map is needed, for example as
kpeter@301	1804	/// \c ReachedMap for \c Bfs, \c Dfs and \c Dijkstra algorithms.
kpeter@159	1805	///
kpeter@167	1806	/// \relates LoggerBoolMap
kpeter@159	1807	template<typename Iterator>
kpeter@167	1808	inline LoggerBoolMap<Iterator> loggerBoolMap(Iterator it) {
kpeter@167	1809	return LoggerBoolMap<Iterator>(it);
kpeter@159	1810	}
alpar@104	1811
kpeter@314	1812	/// @}
kpeter@314	1813
kpeter@314	1814	/// \addtogroup graph_maps
kpeter@314	1815	/// @{
kpeter@314	1816
kpeter@559	1817	/// \brief Provides an immutable and unique id for each item in a graph.
kpeter@559	1818	///
kpeter@559	1819	/// IdMap provides a unique and immutable id for each item of the
deba@693	1820	/// same type (\c Node, \c Arc or \c Edge) in a graph. This id is
kpeter@559	1821	/// - \b unique: different items get different ids,
kpeter@559	1822	/// - \b immutable: the id of an item does not change (even if you
kpeter@559	1823	/// delete other nodes).
kpeter@559	1824	///
kpeter@559	1825	/// Using this map you get access (i.e. can read) the inner id values of
kpeter@559	1826	/// the items stored in the graph, which is returned by the \c id()
kpeter@559	1827	/// function of the graph. This map can be inverted with its member
deba@220	1828	/// class \c InverseMap or with the \c operator() member.
deba@220	1829	///
kpeter@559	1830	/// \tparam GR The graph type.
kpeter@559	1831	/// \tparam K The key type of the map (\c GR::Node, \c GR::Arc or
kpeter@559	1832	/// \c GR::Edge).
kpeter@559	1833	///
alpar@572	1834	/// \see RangeIdMap
kpeter@559	1835	template <typename GR, typename K>
kpeter@559	1836	class IdMap : public MapBase<K, int> {
deba@220	1837	public:
kpeter@559	1838	/// The graph type of IdMap.
kpeter@559	1839	typedef GR Graph;
kpeter@617	1840	typedef GR Digraph;
kpeter@559	1841	/// The key type of IdMap (\c Node, \c Arc or \c Edge).
kpeter@559	1842	typedef K Item;
kpeter@559	1843	/// The key type of IdMap (\c Node, \c Arc or \c Edge).
kpeter@559	1844	typedef K Key;
kpeter@559	1845	/// The value type of IdMap.
deba@220	1846	typedef int Value;
deba@220	1847
deba@220	1848	/// \brief Constructor.
deba@220	1849	///
deba@220	1850	/// Constructor of the map.
deba@220	1851	explicit IdMap(const Graph& graph) : _graph(&graph) {}
deba@220	1852
deba@220	1853	/// \brief Gives back the \e id of the item.
deba@220	1854	///
deba@220	1855	/// Gives back the immutable and unique \e id of the item.
deba@220	1856	int operator[](const Item& item) const { return _graph->id(item);}
deba@220	1857
kpeter@559	1858	/// \brief Gives back the \e item by its id.
deba@220	1859	///
kpeter@559	1860	/// Gives back the \e item by its id.
deba@220	1861	Item operator()(int id) { return _graph->fromId(id, Item()); }
deba@220	1862
deba@220	1863	private:
deba@220	1864	const Graph* _graph;
deba@220	1865
deba@220	1866	public:
deba@220	1867
kpeter@559	1868	/// \brief This class represents the inverse of its owner (IdMap).
deba@220	1869	///
kpeter@559	1870	/// This class represents the inverse of its owner (IdMap).
deba@220	1871	/// \see inverse()
deba@220	1872	class InverseMap {
deba@220	1873	public:
deba@220	1874
deba@220	1875	/// \brief Constructor.
deba@220	1876	///
deba@220	1877	/// Constructor for creating an id-to-item map.
deba@220	1878	explicit InverseMap(const Graph& graph) : _graph(&graph) {}
deba@220	1879
deba@220	1880	/// \brief Constructor.
deba@220	1881	///
deba@220	1882	/// Constructor for creating an id-to-item map.
deba@220	1883	explicit InverseMap(const IdMap& map) : _graph(map._graph) {}
deba@220	1884
deba@220	1885	/// \brief Gives back the given item from its id.
deba@220	1886	///
deba@220	1887	/// Gives back the given item from its id.
deba@220	1888	Item operator[](int id) const { return _graph->fromId(id, Item());}
deba@220	1889
deba@220	1890	private:
deba@220	1891	const Graph* _graph;
deba@220	1892	};
deba@220	1893
deba@220	1894	/// \brief Gives back the inverse of the map.
deba@220	1895	///
deba@220	1896	/// Gives back the inverse of the IdMap.
deba@220	1897	InverseMap inverse() const { return InverseMap(*_graph);}
deba@220	1898	};
deba@220	1899
deba@220	1900
alpar@572	1901	/// \brief General cross reference graph map type.
kpeter@559	1902
kpeter@559	1903	/// This class provides simple invertable graph maps.
kpeter@684	1904	/// It wraps a standard graph map (\c NodeMap, \c ArcMap or \c EdgeMap)
kpeter@684	1905	/// and if a key is set to a new value, then stores it in the inverse map.
deba@220	1906	/// The values of the map can be accessed
deba@220	1907	/// with stl compatible forward iterator.
deba@220	1908	///
kpeter@694	1909	/// This type is not reference map, so it cannot be modified with
kpeter@684	1910	/// the subscript operator.
kpeter@694	1911	///
kpeter@559	1912	/// \tparam GR The graph type.
kpeter@559	1913	/// \tparam K The key type of the map (\c GR::Node, \c GR::Arc or
kpeter@559	1914	/// \c GR::Edge).
kpeter@559	1915	/// \tparam V The value type of the map.
deba@220	1916	///
deba@220	1917	/// \see IterableValueMap
kpeter@559	1918	template <typename GR, typename K, typename V>
alpar@572	1919	class CrossRefMap
kpeter@559	1920	: protected ItemSetTraits<GR, K>::template Map<V>::Type {
deba@220	1921	private:
deba@220	1922
kpeter@559	1923	typedef typename ItemSetTraits<GR, K>::
kpeter@559	1924	template Map<V>::Type Map;
kpeter@559	1925
kpeter@684	1926	typedef std::multimap<V, K> Container;
deba@220	1927	Container _inv_map;
deba@220	1928
deba@220	1929	public:
deba@220	1930
alpar@572	1931	/// The graph type of CrossRefMap.
kpeter@559	1932	typedef GR Graph;
kpeter@617	1933	typedef GR Digraph;
alpar@572	1934	/// The key type of CrossRefMap (\c Node, \c Arc or \c Edge).
kpeter@559	1935	typedef K Item;
alpar@572	1936	/// The key type of CrossRefMap (\c Node, \c Arc or \c Edge).
kpeter@559	1937	typedef K Key;
alpar@572	1938	/// The value type of CrossRefMap.
kpeter@559	1939	typedef V Value;
deba@220	1940
deba@220	1941	/// \brief Constructor.
deba@220	1942	///
alpar@572	1943	/// Construct a new CrossRefMap for the given graph.
alpar@572	1944	explicit CrossRefMap(const Graph& graph) : Map(graph) {}
deba@220	1945
deba@220	1946	/// \brief Forward iterator for values.
deba@220	1947	///
deba@220	1948	/// This iterator is an stl compatible forward
deba@220	1949	/// iterator on the values of the map. The values can
kpeter@559	1950	/// be accessed in the <tt>[beginValue, endValue)</tt> range.
kpeter@684	1951	/// They are considered with multiplicity, so each value is
kpeter@684	1952	/// traversed for each item it is assigned to.
deba@220	1953	class ValueIterator
deba@220	1954	: public std::iterator<std::forward_iterator_tag, Value> {
alpar@572	1955	friend class CrossRefMap;
deba@220	1956	private:
deba@220	1957	ValueIterator(typename Container::const_iterator _it)
deba@220	1958	: it(_it) {}
deba@220	1959	public:
deba@220	1960
deba@220	1961	ValueIterator() {}
deba@220	1962
deba@220	1963	ValueIterator& operator++() { ++it; return *this; }
deba@220	1964	ValueIterator operator++(int) {
deba@220	1965	ValueIterator tmp(*this);
deba@220	1966	operator++();
deba@220	1967	return tmp;
deba@220	1968	}
deba@220	1969
deba@220	1970	const Value& operator*() const { return it->first; }
deba@220	1971	const Value* operator->() const { return &(it->first); }
deba@220	1972
deba@220	1973	bool operator==(ValueIterator jt) const { return it == jt.it; }
deba@220	1974	bool operator!=(ValueIterator jt) const { return it != jt.it; }
deba@220	1975
deba@220	1976	private:
deba@220	1977	typename Container::const_iterator it;
deba@220	1978	};
deba@220	1979
deba@220	1980	/// \brief Returns an iterator to the first value.
deba@220	1981	///
deba@220	1982	/// Returns an stl compatible iterator to the
deba@220	1983	/// first value of the map. The values of the
kpeter@559	1984	/// map can be accessed in the <tt>[beginValue, endValue)</tt>
deba@220	1985	/// range.
deba@220	1986	ValueIterator beginValue() const {
deba@220	1987	return ValueIterator(_inv_map.begin());
deba@220	1988	}
deba@220	1989
deba@220	1990	/// \brief Returns an iterator after the last value.
deba@220	1991	///
deba@220	1992	/// Returns an stl compatible iterator after the
deba@220	1993	/// last value of the map. The values of the
kpeter@559	1994	/// map can be accessed in the <tt>[beginValue, endValue)</tt>
deba@220	1995	/// range.
deba@220	1996	ValueIterator endValue() const {
deba@220	1997	return ValueIterator(_inv_map.end());
deba@220	1998	}
deba@220	1999
kpeter@559	2000	/// \brief Sets the value associated with the given key.
deba@220	2001	///
kpeter@559	2002	/// Sets the value associated with the given key.
deba@220	2003	void set(const Key& key, const Value& val) {
deba@220	2004	Value oldval = Map::operator[](key);
kpeter@684	2005	typename Container::iterator it;
kpeter@684	2006	for (it = _inv_map.equal_range(oldval).first;
kpeter@684	2007	it != _inv_map.equal_range(oldval).second; ++it) {
kpeter@684	2008	if (it->second == key) {
kpeter@684	2009	_inv_map.erase(it);
kpeter@684	2010	break;
kpeter@684	2011	}
deba@220	2012	}
deba@693	2013	_inv_map.insert(std::make_pair(val, key));
deba@220	2014	Map::set(key, val);
deba@220	2015	}
deba@220	2016
kpeter@559	2017	/// \brief Returns the value associated with the given key.
deba@220	2018	///
kpeter@559	2019	/// Returns the value associated with the given key.
deba@220	2020	typename MapTraits<Map>::ConstReturnValue
deba@220	2021	operator[](const Key& key) const {
deba@220	2022	return Map::operator[](key);
deba@220	2023	}
deba@220	2024
kpeter@684	2025	/// \brief Gives back an item by its value.
deba@220	2026	///
kpeter@684	2027	/// This function gives back an item that is assigned to
kpeter@684	2028	/// the given value or \c INVALID if no such item exists.
kpeter@684	2029	/// If there are more items with the same associated value,
kpeter@684	2030	/// only one of them is returned.
kpeter@684	2031	Key operator()(const Value& val) const {
kpeter@684	2032	typename Container::const_iterator it = _inv_map.find(val);
deba@220	2033	return it != _inv_map.end() ? it->second : INVALID;
deba@220	2034	}
deba@220	2035
deba@220	2036	protected:
deba@220	2037
kpeter@559	2038	/// \brief Erase the key from the map and the inverse map.
deba@220	2039	///
kpeter@559	2040	/// Erase the key from the map and the inverse map. It is called by the
deba@220	2041	/// \c AlterationNotifier.
deba@220	2042	virtual void erase(const Key& key) {
deba@220	2043	Value val = Map::operator[](key);
kpeter@684	2044	typename Container::iterator it;
kpeter@684	2045	for (it = _inv_map.equal_range(val).first;
kpeter@684	2046	it != _inv_map.equal_range(val).second; ++it) {
kpeter@684	2047	if (it->second == key) {
kpeter@684	2048	_inv_map.erase(it);
kpeter@684	2049	break;
kpeter@684	2050	}
deba@220	2051	}
deba@220	2052	Map::erase(key);
deba@220	2053	}
deba@220	2054
kpeter@559	2055	/// \brief Erase more keys from the map and the inverse map.
deba@220	2056	///
kpeter@559	2057	/// Erase more keys from the map and the inverse map. It is called by the
deba@220	2058	/// \c AlterationNotifier.
deba@220	2059	virtual void erase(const std::vector<Key>& keys) {
deba@220	2060	for (int i = 0; i < int(keys.size()); ++i) {
deba@220	2061	Value val = Map::operator[](keys[i]);
kpeter@684	2062	typename Container::iterator it;
kpeter@684	2063	for (it = _inv_map.equal_range(val).first;
kpeter@684	2064	it != _inv_map.equal_range(val).second; ++it) {
kpeter@684	2065	if (it->second == keys[i]) {
kpeter@684	2066	_inv_map.erase(it);
kpeter@684	2067	break;
kpeter@684	2068	}
deba@220	2069	}
deba@220	2070	}
deba@220	2071	Map::erase(keys);
deba@220	2072	}
deba@220	2073
kpeter@559	2074	/// \brief Clear the keys from the map and the inverse map.
deba@220	2075	///
kpeter@559	2076	/// Clear the keys from the map and the inverse map. It is called by the
deba@220	2077	/// \c AlterationNotifier.
deba@220	2078	virtual void clear() {
deba@220	2079	_inv_map.clear();
deba@220	2080	Map::clear();
deba@220	2081	}
deba@220	2082
deba@220	2083	public:
deba@220	2084
deba@220	2085	/// \brief The inverse map type.
deba@220	2086	///
deba@220	2087	/// The inverse of this map. The subscript operator of the map
kpeter@559	2088	/// gives back the item that was last assigned to the value.
deba@220	2089	class InverseMap {
deba@220	2090	public:
kpeter@559	2091	/// \brief Constructor
deba@220	2092	///
deba@220	2093	/// Constructor of the InverseMap.
alpar@572	2094	explicit InverseMap(const CrossRefMap& inverted)
deba@220	2095	: _inverted(inverted) {}
deba@220	2096
deba@220	2097	/// The value type of the InverseMap.
alpar@572	2098	typedef typename CrossRefMap::Key Value;
deba@220	2099	/// The key type of the InverseMap.
alpar@572	2100	typedef typename CrossRefMap::Value Key;
deba@220	2101
deba@220	2102	/// \brief Subscript operator.
deba@220	2103	///
kpeter@684	2104	/// Subscript operator. It gives back an item
kpeter@684	2105	/// that is assigned to the given value or \c INVALID
kpeter@684	2106	/// if no such item exists.
deba@220	2107	Value operator[](const Key& key) const {
deba@220	2108	return _inverted(key);
deba@220	2109	}
deba@220	2110
deba@220	2111	private:
alpar@572	2112	const CrossRefMap& _inverted;
deba@220	2113	};
deba@220	2114
kpeter@559	2115	/// \brief It gives back the read-only inverse map.
deba@220	2116	///
kpeter@559	2117	/// It gives back the read-only inverse map.
deba@220	2118	InverseMap inverse() const {
deba@220	2119	return InverseMap(*this);
deba@220	2120	}
deba@220	2121
deba@220	2122	};
deba@220	2123
alpar@572	2124	/// \brief Provides continuous and unique ID for the
alpar@572	2125	/// items of a graph.
deba@220	2126	///
alpar@572	2127	/// RangeIdMap provides a unique and continuous
alpar@572	2128	/// ID for each item of a given type (\c Node, \c Arc or
kpeter@559	2129	/// \c Edge) in a graph. This id is
kpeter@559	2130	/// - \b unique: different items get different ids,
kpeter@559	2131	/// - \b continuous: the range of the ids is the set of integers
kpeter@559	2132	/// between 0 and \c n-1, where \c n is the number of the items of
alpar@572	2133	/// this type (\c Node, \c Arc or \c Edge).
alpar@572	2134	/// - So, the ids can change when deleting an item of the same type.
deba@220	2135	///
kpeter@559	2136	/// Thus this id is not (necessarily) the same as what can get using
kpeter@559	2137	/// the \c id() function of the graph or \ref IdMap.
kpeter@559	2138	/// This map can be inverted with its member class \c InverseMap,
kpeter@559	2139	/// or with the \c operator() member.
kpeter@559	2140	///
kpeter@559	2141	/// \tparam GR The graph type.
kpeter@559	2142	/// \tparam K The key type of the map (\c GR::Node, \c GR::Arc or
kpeter@559	2143	/// \c GR::Edge).
kpeter@559	2144	///
kpeter@559	2145	/// \see IdMap
kpeter@559	2146	template <typename GR, typename K>
alpar@572	2147	class RangeIdMap
kpeter@559	2148	: protected ItemSetTraits<GR, K>::template Map<int>::Type {
kpeter@559	2149
kpeter@559	2150	typedef typename ItemSetTraits<GR, K>::template Map<int>::Type Map;
deba@220	2151
deba@220	2152	public:
alpar@572	2153	/// The graph type of RangeIdMap.
kpeter@559	2154	typedef GR Graph;
kpeter@617	2155	typedef GR Digraph;
alpar@572	2156	/// The key type of RangeIdMap (\c Node, \c Arc or \c Edge).
kpeter@559	2157	typedef K Item;
alpar@572	2158	/// The key type of RangeIdMap (\c Node, \c Arc or \c Edge).
kpeter@559	2159	typedef K Key;
alpar@572	2160	/// The value type of RangeIdMap.
kpeter@559	2161	typedef int Value;
deba@220	2162
deba@220	2163	/// \brief Constructor.
deba@220	2164	///
alpar@572	2165	/// Constructor.
alpar@572	2166	explicit RangeIdMap(const Graph& gr) : Map(gr) {
deba@220	2167	Item it;
deba@220	2168	const typename Map::Notifier* nf = Map::notifier();
deba@220	2169	for (nf->first(it); it != INVALID; nf->next(it)) {
deba@220	2170	Map::set(it, _inv_map.size());
deba@220	2171	_inv_map.push_back(it);
deba@220	2172	}
deba@220	2173	}
deba@220	2174
deba@220	2175	protected:
deba@220	2176
kpeter@559	2177	/// \brief Adds a new key to the map.
deba@220	2178	///
deba@220	2179	/// Add a new key to the map. It is called by the
deba@220	2180	/// \c AlterationNotifier.
deba@220	2181	virtual void add(const Item& item) {
deba@220	2182	Map::add(item);
deba@220	2183	Map::set(item, _inv_map.size());
deba@220	2184	_inv_map.push_back(item);
deba@220	2185	}
deba@220	2186
deba@220	2187	/// \brief Add more new keys to the map.
deba@220	2188	///
deba@220	2189	/// Add more new keys to the map. It is called by the
deba@220	2190	/// \c AlterationNotifier.
deba@220	2191	virtual void add(const std::vector<Item>& items) {
deba@220	2192	Map::add(items);
deba@220	2193	for (int i = 0; i < int(items.size()); ++i) {
deba@220	2194	Map::set(items[i], _inv_map.size());
deba@220	2195	_inv_map.push_back(items[i]);
deba@220	2196	}
deba@220	2197	}
deba@220	2198
deba@220	2199	/// \brief Erase the key from the map.
deba@220	2200	///
deba@220	2201	/// Erase the key from the map. It is called by the
deba@220	2202	/// \c AlterationNotifier.
deba@220	2203	virtual void erase(const Item& item) {
deba@220	2204	Map::set(_inv_map.back(), Map::operator[](item));
deba@220	2205	_inv_map[Map::operator[](item)] = _inv_map.back();
deba@220	2206	_inv_map.pop_back();
deba@220	2207	Map::erase(item);
deba@220	2208	}
deba@220	2209
deba@220	2210	/// \brief Erase more keys from the map.
deba@220	2211	///
deba@220	2212	/// Erase more keys from the map. It is called by the
deba@220	2213	/// \c AlterationNotifier.
deba@220	2214	virtual void erase(const std::vector<Item>& items) {
deba@220	2215	for (int i = 0; i < int(items.size()); ++i) {
deba@220	2216	Map::set(_inv_map.back(), Map::operator[](items[i]));
deba@220	2217	_inv_map[Map::operator[](items[i])] = _inv_map.back();
deba@220	2218	_inv_map.pop_back();
deba@220	2219	}
deba@220	2220	Map::erase(items);
deba@220	2221	}
deba@220	2222
deba@220	2223	/// \brief Build the unique map.
deba@220	2224	///
deba@220	2225	/// Build the unique map. It is called by the
deba@220	2226	/// \c AlterationNotifier.
deba@220	2227	virtual void build() {
deba@220	2228	Map::build();
deba@220	2229	Item it;
deba@220	2230	const typename Map::Notifier* nf = Map::notifier();
deba@220	2231	for (nf->first(it); it != INVALID; nf->next(it)) {
deba@220	2232	Map::set(it, _inv_map.size());
deba@220	2233	_inv_map.push_back(it);
deba@220	2234	}
deba@220	2235	}
deba@220	2236
deba@220	2237	/// \brief Clear the keys from the map.
deba@220	2238	///
deba@220	2239	/// Clear the keys from the map. It is called by the
deba@220	2240	/// \c AlterationNotifier.
deba@220	2241	virtual void clear() {
deba@220	2242	_inv_map.clear();
deba@220	2243	Map::clear();
deba@220	2244	}
deba@220	2245
deba@220	2246	public:
deba@220	2247
deba@220	2248	/// \brief Returns the maximal value plus one.
deba@220	2249	///
deba@220	2250	/// Returns the maximal value plus one in the map.
deba@220	2251	unsigned int size() const {
deba@220	2252	return _inv_map.size();
deba@220	2253	}
deba@220	2254
deba@220	2255	/// \brief Swaps the position of the two items in the map.
deba@220	2256	///
deba@220	2257	/// Swaps the position of the two items in the map.
deba@220	2258	void swap(const Item& p, const Item& q) {
deba@220	2259	int pi = Map::operator[](p);
deba@220	2260	int qi = Map::operator[](q);
deba@220	2261	Map::set(p, qi);
deba@220	2262	_inv_map[qi] = p;
deba@220	2263	Map::set(q, pi);
deba@220	2264	_inv_map[pi] = q;
deba@220	2265	}
deba@220	2266
alpar@572	2267	/// \brief Gives back the \e RangeId of the item
deba@220	2268	///
alpar@572	2269	/// Gives back the \e RangeId of the item.
deba@220	2270	int operator[](const Item& item) const {
deba@220	2271	return Map::operator[](item);
deba@220	2272	}
deba@220	2273
alpar@572	2274	/// \brief Gives back the item belonging to a \e RangeId
deba@693	2275	///
alpar@572	2276	/// Gives back the item belonging to a \e RangeId.
deba@220	2277	Item operator()(int id) const {
deba@220	2278	return _inv_map[id];
deba@220	2279	}
deba@220	2280
deba@220	2281	private:
deba@220	2282
deba@220	2283	typedef std::vector<Item> Container;
deba@220	2284	Container _inv_map;
deba@220	2285
deba@220	2286	public:
kpeter@559	2287
alpar@572	2288	/// \brief The inverse map type of RangeIdMap.
deba@220	2289	///
alpar@572	2290	/// The inverse map type of RangeIdMap.
deba@220	2291	class InverseMap {
deba@220	2292	public:
kpeter@559	2293	/// \brief Constructor
deba@220	2294	///
deba@220	2295	/// Constructor of the InverseMap.
alpar@572	2296	explicit InverseMap(const RangeIdMap& inverted)
deba@220	2297	: _inverted(inverted) {}
deba@220	2298
deba@220	2299
deba@220	2300	/// The value type of the InverseMap.
alpar@572	2301	typedef typename RangeIdMap::Key Value;
deba@220	2302	/// The key type of the InverseMap.
alpar@572	2303	typedef typename RangeIdMap::Value Key;
deba@220	2304
deba@220	2305	/// \brief Subscript operator.
deba@220	2306	///
deba@220	2307	/// Subscript operator. It gives back the item
kpeter@559	2308	/// that the descriptor currently belongs to.
deba@220	2309	Value operator[](const Key& key) const {
deba@220	2310	return _inverted(key);
deba@220	2311	}
deba@220	2312
deba@220	2313	/// \brief Size of the map.
deba@220	2314	///
deba@220	2315	/// Returns the size of the map.
deba@220	2316	unsigned int size() const {
deba@220	2317	return _inverted.size();
deba@220	2318	}
deba@220	2319
deba@220	2320	private:
alpar@572	2321	const RangeIdMap& _inverted;
deba@220	2322	};
deba@220	2323
deba@220	2324	/// \brief Gives back the inverse of the map.
deba@220	2325	///
deba@220	2326	/// Gives back the inverse of the map.
deba@220	2327	const InverseMap inverse() const {
deba@220	2328	return InverseMap(*this);
deba@220	2329	}
deba@220	2330	};
deba@220	2331
kpeter@694	2332	/// \brief Dynamic iterable \c bool map.
deba@693	2333	///
kpeter@694	2334	/// This class provides a special graph map type which can store a
kpeter@694	2335	/// \c bool value for graph items (\c Node, \c Arc or \c Edge).
kpeter@694	2336	/// For both \c true and \c false values it is possible to iterate on
kpeter@694	2337	/// the keys.
deba@693	2338	///
kpeter@694	2339	/// This type is a reference map, so it can be modified with the
alpar@695	2340	/// subscript operator.
kpeter@694	2341	///
kpeter@694	2342	/// \tparam GR The graph type.
kpeter@694	2343	/// \tparam K The key type of the map (\c GR::Node, \c GR::Arc or
kpeter@694	2344	/// \c GR::Edge).
kpeter@694	2345	///
kpeter@694	2346	/// \see IterableIntMap, IterableValueMap
kpeter@694	2347	/// \see CrossRefMap
kpeter@694	2348	template <typename GR, typename K>
deba@693	2349	class IterableBoolMap
kpeter@694	2350	: protected ItemSetTraits<GR, K>::template Map<int>::Type {
deba@693	2351	private:
deba@693	2352	typedef GR Graph;
deba@693	2353
kpeter@694	2354	typedef typename ItemSetTraits<GR, K>::ItemIt KeyIt;
kpeter@694	2355	typedef typename ItemSetTraits<GR, K>::template Map<int>::Type Parent;
kpeter@694	2356
kpeter@694	2357	std::vector<K> _array;
deba@693	2358	int _sep;
deba@693	2359
deba@693	2360	public:
deba@693	2361
kpeter@694	2362	/// Indicates that the map is reference map.
deba@693	2363	typedef True ReferenceMapTag;
deba@693	2364
deba@693	2365	/// The key type
kpeter@694	2366	typedef K Key;
deba@693	2367	/// The value type
deba@693	2368	typedef bool Value;
deba@693	2369	/// The const reference type.
deba@693	2370	typedef const Value& ConstReference;
deba@693	2371
deba@693	2372	private:
deba@693	2373
deba@693	2374	int position(const Key& key) const {
deba@693	2375	return Parent::operator[](key);
deba@693	2376	}
deba@693	2377
deba@693	2378	public:
deba@693	2379
kpeter@694	2380	/// \brief Reference to the value of the map.
deba@693	2381	///
kpeter@694	2382	/// This class is similar to the \c bool type. It can be converted to
kpeter@694	2383	/// \c bool and it provides the same operators.
deba@693	2384	class Reference {
deba@693	2385	friend class IterableBoolMap;
deba@693	2386	private:
deba@693	2387	Reference(IterableBoolMap& map, const Key& key)
deba@693	2388	: _key(key), _map(map) {}
deba@693	2389	public:
deba@693	2390
deba@693	2391	Reference& operator=(const Reference& value) {
deba@693	2392	_map.set(_key, static_cast<bool>(value));
deba@693	2393	return *this;
deba@693	2394	}
deba@693	2395
deba@693	2396	operator bool() const {
deba@693	2397	return static_cast<const IterableBoolMap&>(_map)[_key];
deba@693	2398	}
deba@693	2399
deba@693	2400	Reference& operator=(bool value) {
deba@693	2401	_map.set(_key, value);
deba@693	2402	return *this;
deba@693	2403	}
deba@693	2404	Reference& operator&=(bool value) {
deba@693	2405	_map.set(_key, _map[_key] & value);
deba@693	2406	return *this;
deba@693	2407	}
deba@693	2408	Reference& operator\|=(bool value) {
deba@693	2409	_map.set(_key, _map[_key] \| value);
deba@693	2410	return *this;
deba@693	2411	}
deba@693	2412	Reference& operator^=(bool value) {
deba@693	2413	_map.set(_key, _map[_key] ^ value);
deba@693	2414	return *this;
deba@693	2415	}
deba@693	2416	private:
deba@693	2417	Key _key;
deba@693	2418	IterableBoolMap& _map;
deba@693	2419	};
deba@693	2420
deba@693	2421	/// \brief Constructor of the map with a default value.
deba@693	2422	///
deba@693	2423	/// Constructor of the map with a default value.
deba@693	2424	explicit IterableBoolMap(const Graph& graph, bool def = false)
deba@693	2425	: Parent(graph) {
deba@693	2426	typename Parent::Notifier* nf = Parent::notifier();
deba@693	2427	Key it;
deba@693	2428	for (nf->first(it); it != INVALID; nf->next(it)) {
deba@693	2429	Parent::set(it, _array.size());
deba@693	2430	_array.push_back(it);
deba@693	2431	}
deba@693	2432	_sep = (def ? _array.size() : 0);
deba@693	2433	}
deba@693	2434
deba@693	2435	/// \brief Const subscript operator of the map.
deba@693	2436	///
deba@693	2437	/// Const subscript operator of the map.
deba@693	2438	bool operator[](const Key& key) const {
deba@693	2439	return position(key) < _sep;
deba@693	2440	}
deba@693	2441
deba@693	2442	/// \brief Subscript operator of the map.
deba@693	2443	///
deba@693	2444	/// Subscript operator of the map.
deba@693	2445	Reference operator[](const Key& key) {
deba@693	2446	return Reference(*this, key);
deba@693	2447	}
deba@693	2448
deba@693	2449	/// \brief Set operation of the map.
deba@693	2450	///
deba@693	2451	/// Set operation of the map.
deba@693	2452	void set(const Key& key, bool value) {
deba@693	2453	int pos = position(key);
deba@693	2454	if (value) {
deba@693	2455	if (pos < _sep) return;
deba@693	2456	Key tmp = _array[_sep];
deba@693	2457	_array[_sep] = key;
deba@693	2458	Parent::set(key, _sep);
deba@693	2459	_array[pos] = tmp;
deba@693	2460	Parent::set(tmp, pos);
deba@693	2461	++_sep;
deba@693	2462	} else {
deba@693	2463	if (pos >= _sep) return;
deba@693	2464	--_sep;
deba@693	2465	Key tmp = _array[_sep];
deba@693	2466	_array[_sep] = key;
deba@693	2467	Parent::set(key, _sep);
deba@693	2468	_array[pos] = tmp;
deba@693	2469	Parent::set(tmp, pos);
deba@693	2470	}
deba@693	2471	}
deba@693	2472
deba@693	2473	/// \brief Set all items.
deba@693	2474	///
deba@693	2475	/// Set all items in the map.
deba@693	2476	/// \note Constant time operation.
deba@693	2477	void setAll(bool value) {
deba@693	2478	_sep = (value ? _array.size() : 0);
deba@693	2479	}
deba@693	2480
kpeter@694	2481	/// \brief Returns the number of the keys mapped to \c true.
deba@693	2482	///
kpeter@694	2483	/// Returns the number of the keys mapped to \c true.
deba@693	2484	int trueNum() const {
deba@693	2485	return _sep;
deba@693	2486	}
deba@693	2487
kpeter@694	2488	/// \brief Returns the number of the keys mapped to \c false.
deba@693	2489	///
kpeter@694	2490	/// Returns the number of the keys mapped to \c false.
deba@693	2491	int falseNum() const {
deba@693	2492	return _array.size() - _sep;
deba@693	2493	}
deba@693	2494
kpeter@694	2495	/// \brief Iterator for the keys mapped to \c true.
deba@693	2496	///
kpeter@694	2497	/// Iterator for the keys mapped to \c true. It works
kpeter@694	2498	/// like a graph item iterator, it can be converted to
deba@693	2499	/// the key type of the map, incremented with \c ++ operator, and
kpeter@694	2500	/// if the iterator leaves the last valid key, it will be equal to
deba@693	2501	/// \c INVALID.
deba@693	2502	class TrueIt : public Key {
deba@693	2503	public:
deba@693	2504	typedef Key Parent;
deba@693	2505
deba@693	2506	/// \brief Creates an iterator.
deba@693	2507	///
deba@693	2508	/// Creates an iterator. It iterates on the
kpeter@694	2509	/// keys mapped to \c true.
kpeter@694	2510	/// \param map The IterableBoolMap.
deba@693	2511	explicit TrueIt(const IterableBoolMap& map)
deba@693	2512	: Parent(map._sep > 0 ? map._array[map._sep - 1] : INVALID),
deba@693	2513	_map(&map) {}
deba@693	2514
deba@693	2515	/// \brief Invalid constructor \& conversion.
deba@693	2516	///
kpeter@694	2517	/// This constructor initializes the iterator to be invalid.
deba@693	2518	/// \sa Invalid for more details.
deba@693	2519	TrueIt(Invalid) : Parent(INVALID), _map(0) {}
deba@693	2520
deba@693	2521	/// \brief Increment operator.
deba@693	2522	///
kpeter@694	2523	/// Increment operator.
deba@693	2524	TrueIt& operator++() {
deba@693	2525	int pos = _map->position(*this);
deba@693	2526	Parent::operator=(pos > 0 ? _map->_array[pos - 1] : INVALID);
deba@693	2527	return *this;
deba@693	2528	}
deba@693	2529
deba@693	2530	private:
deba@693	2531	const IterableBoolMap* _map;
deba@693	2532	};
deba@693	2533
kpeter@694	2534	/// \brief Iterator for the keys mapped to \c false.
deba@693	2535	///
kpeter@694	2536	/// Iterator for the keys mapped to \c false. It works
kpeter@694	2537	/// like a graph item iterator, it can be converted to
deba@693	2538	/// the key type of the map, incremented with \c ++ operator, and
kpeter@694	2539	/// if the iterator leaves the last valid key, it will be equal to
deba@693	2540	/// \c INVALID.
deba@693	2541	class FalseIt : public Key {
deba@693	2542	public:
deba@693	2543	typedef Key Parent;
deba@693	2544
deba@693	2545	/// \brief Creates an iterator.
deba@693	2546	///
deba@693	2547	/// Creates an iterator. It iterates on the
kpeter@694	2548	/// keys mapped to \c false.
kpeter@694	2549	/// \param map The IterableBoolMap.
deba@693	2550	explicit FalseIt(const IterableBoolMap& map)
deba@693	2551	: Parent(map._sep < int(map._array.size()) ?
deba@693	2552	map._array.back() : INVALID), _map(&map) {}
deba@693	2553
deba@693	2554	/// \brief Invalid constructor \& conversion.
deba@693	2555	///
kpeter@694	2556	/// This constructor initializes the iterator to be invalid.
deba@693	2557	/// \sa Invalid for more details.
deba@693	2558	FalseIt(Invalid) : Parent(INVALID), _map(0) {}
deba@693	2559
deba@693	2560	/// \brief Increment operator.
deba@693	2561	///
kpeter@694	2562	/// Increment operator.
deba@693	2563	FalseIt& operator++() {
deba@693	2564	int pos = _map->position(*this);
deba@693	2565	Parent::operator=(pos > _map->_sep ? _map->_array[pos - 1] : INVALID);
deba@693	2566	return *this;
deba@693	2567	}
deba@693	2568
deba@693	2569	private:
deba@693	2570	const IterableBoolMap* _map;
deba@693	2571	};
deba@693	2572
deba@693	2573	/// \brief Iterator for the keys mapped to a given value.
deba@693	2574	///
deba@693	2575	/// Iterator for the keys mapped to a given value. It works
kpeter@694	2576	/// like a graph item iterator, it can be converted to
deba@693	2577	/// the key type of the map, incremented with \c ++ operator, and
kpeter@694	2578	/// if the iterator leaves the last valid key, it will be equal to
deba@693	2579	/// \c INVALID.
deba@693	2580	class ItemIt : public Key {
deba@693	2581	public:
deba@693	2582	typedef Key Parent;
deba@693	2583
kpeter@694	2584	/// \brief Creates an iterator with a value.
deba@693	2585	///
kpeter@694	2586	/// Creates an iterator with a value. It iterates on the
kpeter@694	2587	/// keys mapped to the given value.
kpeter@694	2588	/// \param map The IterableBoolMap.
kpeter@694	2589	/// \param value The value.
deba@693	2590	ItemIt(const IterableBoolMap& map, bool value)
deba@693	2591	: Parent(value ?
deba@693	2592	(map._sep > 0 ?
deba@693	2593	map._array[map._sep - 1] : INVALID) :
deba@693	2594	(map._sep < int(map._array.size()) ?
deba@693	2595	map._array.back() : INVALID)), _map(&map) {}
deba@693	2596
deba@693	2597	/// \brief Invalid constructor \& conversion.
deba@693	2598	///
kpeter@694	2599	/// This constructor initializes the iterator to be invalid.
deba@693	2600	/// \sa Invalid for more details.
deba@693	2601	ItemIt(Invalid) : Parent(INVALID), _map(0) {}
deba@693	2602
deba@693	2603	/// \brief Increment operator.
deba@693	2604	///
kpeter@694	2605	/// Increment operator.
deba@693	2606	ItemIt& operator++() {
deba@693	2607	int pos = _map->position(*this);
deba@693	2608	int _sep = pos >= _map->_sep ? _map->_sep : 0;
deba@693	2609	Parent::operator=(pos > _sep ? _map->_array[pos - 1] : INVALID);
deba@693	2610	return *this;
deba@693	2611	}
deba@693	2612
deba@693	2613	private:
deba@693	2614	const IterableBoolMap* _map;
deba@693	2615	};
deba@693	2616
deba@693	2617	protected:
deba@693	2618
deba@693	2619	virtual void add(const Key& key) {
deba@693	2620	Parent::add(key);
deba@693	2621	Parent::set(key, _array.size());
deba@693	2622	_array.push_back(key);
deba@693	2623	}
deba@693	2624
deba@693	2625	virtual void add(const std::vector<Key>& keys) {
deba@693	2626	Parent::add(keys);
deba@693	2627	for (int i = 0; i < int(keys.size()); ++i) {
deba@693	2628	Parent::set(keys[i], _array.size());
deba@693	2629	_array.push_back(keys[i]);
deba@693	2630	}
deba@693	2631	}
deba@693	2632
deba@693	2633	virtual void erase(const Key& key) {
deba@693	2634	int pos = position(key);
deba@693	2635	if (pos < _sep) {
deba@693	2636	--_sep;
deba@693	2637	Parent::set(_array[_sep], pos);
deba@693	2638	_array[pos] = _array[_sep];
deba@693	2639	Parent::set(_array.back(), _sep);
deba@693	2640	_array[_sep] = _array.back();
deba@693	2641	_array.pop_back();
deba@693	2642	} else {
deba@693	2643	Parent::set(_array.back(), pos);
deba@693	2644	_array[pos] = _array.back();
deba@693	2645	_array.pop_back();
deba@693	2646	}
deba@693	2647	Parent::erase(key);
deba@693	2648	}
deba@693	2649
deba@693	2650	virtual void erase(const std::vector<Key>& keys) {
deba@693	2651	for (int i = 0; i < int(keys.size()); ++i) {
deba@693	2652	int pos = position(keys[i]);
deba@693	2653	if (pos < _sep) {
deba@693	2654	--_sep;
deba@693	2655	Parent::set(_array[_sep], pos);
deba@693	2656	_array[pos] = _array[_sep];
deba@693	2657	Parent::set(_array.back(), _sep);
deba@693	2658	_array[_sep] = _array.back();
deba@693	2659	_array.pop_back();
deba@693	2660	} else {
deba@693	2661	Parent::set(_array.back(), pos);
deba@693	2662	_array[pos] = _array.back();
deba@693	2663	_array.pop_back();
deba@693	2664	}
deba@693	2665	}
deba@693	2666	Parent::erase(keys);
deba@693	2667	}
deba@693	2668
deba@693	2669	virtual void build() {
deba@693	2670	Parent::build();
deba@693	2671	typename Parent::Notifier* nf = Parent::notifier();
deba@693	2672	Key it;
deba@693	2673	for (nf->first(it); it != INVALID; nf->next(it)) {
deba@693	2674	Parent::set(it, _array.size());
deba@693	2675	_array.push_back(it);
deba@693	2676	}
deba@693	2677	_sep = 0;
deba@693	2678	}
deba@693	2679
deba@693	2680	virtual void clear() {
deba@693	2681	_array.clear();
deba@693	2682	_sep = 0;
deba@693	2683	Parent::clear();
deba@693	2684	}
deba@693	2685
deba@693	2686	};
deba@693	2687
deba@693	2688
deba@693	2689	namespace _maps_bits {
deba@693	2690	template <typename Item>
deba@693	2691	struct IterableIntMapNode {
deba@693	2692	IterableIntMapNode() : value(-1) {}
deba@693	2693	IterableIntMapNode(int _value) : value(_value) {}
deba@693	2694	Item prev, next;
deba@693	2695	int value;
deba@693	2696	};
deba@693	2697	}
deba@693	2698
deba@693	2699	/// \brief Dynamic iterable integer map.
deba@693	2700	///
kpeter@694	2701	/// This class provides a special graph map type which can store an
kpeter@694	2702	/// integer value for graph items (\c Node, \c Arc or \c Edge).
kpeter@694	2703	/// For each non-negative value it is possible to iterate on the keys
kpeter@694	2704	/// mapped to the value.
deba@693	2705	///
kpeter@694	2706	/// This type is a reference map, so it can be modified with the
alpar@695	2707	/// subscript operator.
kpeter@694	2708	///
kpeter@694	2709	/// \note The size of the data structure depends on the largest
deba@693	2710	/// value in the map.
deba@693	2711	///
kpeter@694	2712	/// \tparam GR The graph type.
kpeter@694	2713	/// \tparam K The key type of the map (\c GR::Node, \c GR::Arc or
kpeter@694	2714	/// \c GR::Edge).
kpeter@694	2715	///
kpeter@694	2716	/// \see IterableBoolMap, IterableValueMap
kpeter@694	2717	/// \see CrossRefMap
kpeter@694	2718	template <typename GR, typename K>
deba@693	2719	class IterableIntMap
kpeter@694	2720	: protected ItemSetTraits<GR, K>::
kpeter@694	2721	template Map<_maps_bits::IterableIntMapNode<K> >::Type {
deba@693	2722	public:
kpeter@694	2723	typedef typename ItemSetTraits<GR, K>::
kpeter@694	2724	template Map<_maps_bits::IterableIntMapNode<K> >::Type Parent;
deba@693	2725
deba@693	2726	/// The key type
kpeter@694	2727	typedef K Key;
deba@693	2728	/// The value type
deba@693	2729	typedef int Value;
deba@693	2730	/// The graph type
deba@693	2731	typedef GR Graph;
deba@693	2732
deba@693	2733	/// \brief Constructor of the map.
deba@693	2734	///
kpeter@694	2735	/// Constructor of the map. It sets all values to -1.
deba@693	2736	explicit IterableIntMap(const Graph& graph)
deba@693	2737	: Parent(graph) {}
deba@693	2738
deba@693	2739	/// \brief Constructor of the map with a given value.
deba@693	2740	///
deba@693	2741	/// Constructor of the map with a given value.
deba@693	2742	explicit IterableIntMap(const Graph& graph, int value)
kpeter@694	2743	: Parent(graph, _maps_bits::IterableIntMapNode<K>(value)) {
deba@693	2744	if (value >= 0) {
deba@693	2745	for (typename Parent::ItemIt it(*this); it != INVALID; ++it) {
deba@693	2746	lace(it);
deba@693	2747	}
deba@693	2748	}
deba@693	2749	}
deba@693	2750
deba@693	2751	private:
deba@693	2752
deba@693	2753	void unlace(const Key& key) {
deba@693	2754	typename Parent::Value& node = Parent::operator[](key);
deba@693	2755	if (node.value < 0) return;
deba@693	2756	if (node.prev != INVALID) {
deba@693	2757	Parent::operator[](node.prev).next = node.next;
deba@693	2758	} else {
deba@693	2759	_first[node.value] = node.next;
deba@693	2760	}
deba@693	2761	if (node.next != INVALID) {
deba@693	2762	Parent::operator[](node.next).prev = node.prev;
deba@693	2763	}
deba@693	2764	while (!_first.empty() && _first.back() == INVALID) {
deba@693	2765	_first.pop_back();
deba@693	2766	}
deba@693	2767	}
deba@693	2768
deba@693	2769	void lace(const Key& key) {
deba@693	2770	typename Parent::Value& node = Parent::operator[](key);
deba@693	2771	if (node.value < 0) return;
deba@693	2772	if (node.value >= int(_first.size())) {
deba@693	2773	_first.resize(node.value + 1, INVALID);
deba@693	2774	}
deba@693	2775	node.prev = INVALID;
deba@693	2776	node.next = _first[node.value];
deba@693	2777	if (node.next != INVALID) {
deba@693	2778	Parent::operator[](node.next).prev = key;
deba@693	2779	}
deba@693	2780	_first[node.value] = key;
deba@693	2781	}
deba@693	2782
deba@693	2783	public:
deba@693	2784
kpeter@694	2785	/// Indicates that the map is reference map.
deba@693	2786	typedef True ReferenceMapTag;
deba@693	2787
kpeter@694	2788	/// \brief Reference to the value of the map.
deba@693	2789	///
kpeter@694	2790	/// This class is similar to the \c int type. It can
kpeter@694	2791	/// be converted to \c int and it has the same operators.
deba@693	2792	class Reference {
deba@693	2793	friend class IterableIntMap;
deba@693	2794	private:
deba@693	2795	Reference(IterableIntMap& map, const Key& key)
deba@693	2796	: _key(key), _map(map) {}
deba@693	2797	public:
deba@693	2798
deba@693	2799	Reference& operator=(const Reference& value) {
deba@693	2800	_map.set(_key, static_cast<const int&>(value));
deba@693	2801	return *this;
deba@693	2802	}
deba@693	2803
deba@693	2804	operator const int&() const {
deba@693	2805	return static_cast<const IterableIntMap&>(_map)[_key];
deba@693	2806	}
deba@693	2807
deba@693	2808	Reference& operator=(int value) {
deba@693	2809	_map.set(_key, value);
deba@693	2810	return *this;
deba@693	2811	}
deba@693	2812	Reference& operator++() {
deba@693	2813	_map.set(_key, _map[_key] + 1);
deba@693	2814	return *this;
deba@693	2815	}
deba@693	2816	int operator++(int) {
deba@693	2817	int value = _map[_key];
deba@693	2818	_map.set(_key, value + 1);
deba@693	2819	return value;
deba@693	2820	}
deba@693	2821	Reference& operator--() {
deba@693	2822	_map.set(_key, _map[_key] - 1);
deba@693	2823	return *this;
deba@693	2824	}
deba@693	2825	int operator--(int) {
deba@693	2826	int value = _map[_key];
deba@693	2827	_map.set(_key, value - 1);
deba@693	2828	return value;
deba@693	2829	}
deba@693	2830	Reference& operator+=(int value) {
deba@693	2831	_map.set(_key, _map[_key] + value);
deba@693	2832	return *this;
deba@693	2833	}
deba@693	2834	Reference& operator-=(int value) {
deba@693	2835	_map.set(_key, _map[_key] - value);
deba@693	2836	return *this;
deba@693	2837	}
deba@693	2838	Reference& operator*=(int value) {
deba@693	2839	_map.set(_key, _map[_key] * value);
deba@693	2840	return *this;
deba@693	2841	}
deba@693	2842	Reference& operator/=(int value) {
deba@693	2843	_map.set(_key, _map[_key] / value);
deba@693	2844	return *this;
deba@693	2845	}
deba@693	2846	Reference& operator%=(int value) {
deba@693	2847	_map.set(_key, _map[_key] % value);
deba@693	2848	return *this;
deba@693	2849	}
deba@693	2850	Reference& operator&=(int value) {
deba@693	2851	_map.set(_key, _map[_key] & value);
deba@693	2852	return *this;
deba@693	2853	}
deba@693	2854	Reference& operator\|=(int value) {
deba@693	2855	_map.set(_key, _map[_key] \| value);
deba@693	2856	return *this;
deba@693	2857	}
deba@693	2858	Reference& operator^=(int value) {
deba@693	2859	_map.set(_key, _map[_key] ^ value);
deba@693	2860	return *this;
deba@693	2861	}
deba@693	2862	Reference& operator<<=(int value) {
deba@693	2863	_map.set(_key, _map[_key] << value);
deba@693	2864	return *this;
deba@693	2865	}
deba@693	2866	Reference& operator>>=(int value) {
deba@693	2867	_map.set(_key, _map[_key] >> value);
deba@693	2868	return *this;
deba@693	2869	}
deba@693	2870
deba@693	2871	private:
deba@693	2872	Key _key;
deba@693	2873	IterableIntMap& _map;
deba@693	2874	};
deba@693	2875
deba@693	2876	/// The const reference type.
deba@693	2877	typedef const Value& ConstReference;
deba@693	2878
deba@693	2879	/// \brief Gives back the maximal value plus one.
deba@693	2880	///
deba@693	2881	/// Gives back the maximal value plus one.
deba@693	2882	int size() const {
deba@693	2883	return _first.size();
deba@693	2884	}
deba@693	2885
deba@693	2886	/// \brief Set operation of the map.
deba@693	2887	///
deba@693	2888	/// Set operation of the map.
deba@693	2889	void set(const Key& key, const Value& value) {
deba@693	2890	unlace(key);
deba@693	2891	Parent::operator[](key).value = value;
deba@693	2892	lace(key);
deba@693	2893	}
deba@693	2894
deba@693	2895	/// \brief Const subscript operator of the map.
deba@693	2896	///
deba@693	2897	/// Const subscript operator of the map.
deba@693	2898	const Value& operator[](const Key& key) const {
deba@693	2899	return Parent::operator[](key).value;
deba@693	2900	}
deba@693	2901
deba@693	2902	/// \brief Subscript operator of the map.
deba@693	2903	///
deba@693	2904	/// Subscript operator of the map.
deba@693	2905	Reference operator[](const Key& key) {
deba@693	2906	return Reference(*this, key);
deba@693	2907	}
deba@693	2908
deba@693	2909	/// \brief Iterator for the keys with the same value.
deba@693	2910	///
deba@693	2911	/// Iterator for the keys with the same value. It works
kpeter@694	2912	/// like a graph item iterator, it can be converted to
deba@693	2913	/// the item type of the map, incremented with \c ++ operator, and
kpeter@694	2914	/// if the iterator leaves the last valid item, it will be equal to
deba@693	2915	/// \c INVALID.
kpeter@694	2916	class ItemIt : public Key {
deba@693	2917	public:
kpeter@694	2918	typedef Key Parent;
deba@693	2919
deba@693	2920	/// \brief Invalid constructor \& conversion.
deba@693	2921	///
kpeter@694	2922	/// This constructor initializes the iterator to be invalid.
deba@693	2923	/// \sa Invalid for more details.
deba@693	2924	ItemIt(Invalid) : Parent(INVALID), _map(0) {}
deba@693	2925
deba@693	2926	/// \brief Creates an iterator with a value.
deba@693	2927	///
deba@693	2928	/// Creates an iterator with a value. It iterates on the
kpeter@694	2929	/// keys mapped to the given value.
kpeter@694	2930	/// \param map The IterableIntMap.
kpeter@694	2931	/// \param value The value.
deba@693	2932	ItemIt(const IterableIntMap& map, int value) : _map(&map) {
deba@693	2933	if (value < 0 \|\| value >= int(_map->_first.size())) {
deba@693	2934	Parent::operator=(INVALID);
deba@693	2935	} else {
deba@693	2936	Parent::operator=(_map->_first[value]);
deba@693	2937	}
deba@693	2938	}
deba@693	2939
deba@693	2940	/// \brief Increment operator.
deba@693	2941	///
kpeter@694	2942	/// Increment operator.
deba@693	2943	ItemIt& operator++() {
deba@693	2944	Parent::operator=(_map->IterableIntMap::Parent::
deba@693	2945	operator[](static_cast<Parent&>(*this)).next);
deba@693	2946	return *this;
deba@693	2947	}
deba@693	2948
deba@693	2949	private:
deba@693	2950	const IterableIntMap* _map;
deba@693	2951	};
deba@693	2952
deba@693	2953	protected:
deba@693	2954
deba@693	2955	virtual void erase(const Key& key) {
deba@693	2956	unlace(key);
deba@693	2957	Parent::erase(key);
deba@693	2958	}
deba@693	2959
deba@693	2960	virtual void erase(const std::vector<Key>& keys) {
deba@693	2961	for (int i = 0; i < int(keys.size()); ++i) {
deba@693	2962	unlace(keys[i]);
deba@693	2963	}
deba@693	2964	Parent::erase(keys);
deba@693	2965	}
deba@693	2966
deba@693	2967	virtual void clear() {
deba@693	2968	_first.clear();
deba@693	2969	Parent::clear();
deba@693	2970	}
deba@693	2971
deba@693	2972	private:
kpeter@694	2973	std::vector<Key> _first;
deba@693	2974	};
deba@693	2975
deba@693	2976	namespace _maps_bits {
deba@693	2977	template <typename Item, typename Value>
deba@693	2978	struct IterableValueMapNode {
deba@693	2979	IterableValueMapNode(Value _value = Value()) : value(_value) {}
deba@693	2980	Item prev, next;
deba@693	2981	Value value;
deba@693	2982	};
deba@693	2983	}
deba@693	2984
deba@693	2985	/// \brief Dynamic iterable map for comparable values.
deba@693	2986	///
kpeter@694	2987	/// This class provides a special graph map type which can store an
kpeter@694	2988	/// comparable value for graph items (\c Node, \c Arc or \c Edge).
kpeter@694	2989	/// For each value it is possible to iterate on the keys mapped to
kpeter@694	2990	/// the value.
kpeter@694	2991	///
kpeter@694	2992	/// The map stores for each value a linked list with
deba@693	2993	/// the items which mapped to the value, and the values are stored
deba@693	2994	/// in balanced binary tree. The values of the map can be accessed
deba@693	2995	/// with stl compatible forward iterator.
deba@693	2996	///
kpeter@694	2997	/// This type is not reference map, so it cannot be modified with
alpar@695	2998	/// the subscript operator.
deba@693	2999	///
kpeter@694	3000	/// \tparam GR The graph type.
kpeter@694	3001	/// \tparam K The key type of the map (\c GR::Node, \c GR::Arc or
kpeter@694	3002	/// \c GR::Edge).
kpeter@694	3003	/// \tparam V The value type of the map. It can be any comparable
kpeter@694	3004	/// value type.
deba@693	3005	///
kpeter@694	3006	/// \see IterableBoolMap, IterableIntMap
kpeter@694	3007	/// \see CrossRefMap
kpeter@694	3008	template <typename GR, typename K, typename V>
deba@693	3009	class IterableValueMap
kpeter@694	3010	: protected ItemSetTraits<GR, K>::
kpeter@694	3011	template Map<_maps_bits::IterableValueMapNode<K, V> >::Type {
deba@693	3012	public:
kpeter@694	3013	typedef typename ItemSetTraits<GR, K>::
kpeter@694	3014	template Map<_maps_bits::IterableValueMapNode<K, V> >::Type Parent;
deba@693	3015
deba@693	3016	/// The key type
kpeter@694	3017	typedef K Key;
deba@693	3018	/// The value type
kpeter@694	3019	typedef V Value;
deba@693	3020	/// The graph type
deba@693	3021	typedef GR Graph;
deba@693	3022
deba@693	3023	public:
deba@693	3024
kpeter@694	3025	/// \brief Constructor of the map with a given value.
deba@693	3026	///
kpeter@694	3027	/// Constructor of the map with a given value.
deba@693	3028	explicit IterableValueMap(const Graph& graph,
deba@693	3029	const Value& value = Value())
kpeter@694	3030	: Parent(graph, _maps_bits::IterableValueMapNode<K, V>(value)) {
deba@693	3031	for (typename Parent::ItemIt it(*this); it != INVALID; ++it) {
deba@693	3032	lace(it);
deba@693	3033	}
deba@693	3034	}
deba@693	3035
deba@693	3036	protected:
deba@693	3037
deba@693	3038	void unlace(const Key& key) {
deba@693	3039	typename Parent::Value& node = Parent::operator[](key);
deba@693	3040	if (node.prev != INVALID) {
deba@693	3041	Parent::operator[](node.prev).next = node.next;
deba@693	3042	} else {
deba@693	3043	if (node.next != INVALID) {
deba@693	3044	_first[node.value] = node.next;
deba@693	3045	} else {
deba@693	3046	_first.erase(node.value);
deba@693	3047	}
deba@693	3048	}
deba@693	3049	if (node.next != INVALID) {
deba@693	3050	Parent::operator[](node.next).prev = node.prev;
deba@693	3051	}
deba@693	3052	}
deba@693	3053
deba@693	3054	void lace(const Key& key) {
deba@693	3055	typename Parent::Value& node = Parent::operator[](key);
deba@693	3056	typename std::map<Value, Key>::iterator it = _first.find(node.value);
deba@693	3057	if (it == _first.end()) {
deba@693	3058	node.prev = node.next = INVALID;
deba@693	3059	_first.insert(std::make_pair(node.value, key));
deba@693	3060	} else {
deba@693	3061	node.prev = INVALID;
deba@693	3062	node.next = it->second;
deba@693	3063	if (node.next != INVALID) {
deba@693	3064	Parent::operator[](node.next).prev = key;
deba@693	3065	}
deba@693	3066	it->second = key;
deba@693	3067	}
deba@693	3068	}
deba@693	3069
deba@693	3070	public:
deba@693	3071
deba@693	3072	/// \brief Forward iterator for values.
deba@693	3073	///
deba@693	3074	/// This iterator is an stl compatible forward
deba@693	3075	/// iterator on the values of the map. The values can
kpeter@694	3076	/// be accessed in the <tt>[beginValue, endValue)</tt> range.
deba@693	3077	class ValueIterator
deba@693	3078	: public std::iterator<std::forward_iterator_tag, Value> {
deba@693	3079	friend class IterableValueMap;
deba@693	3080	private:
deba@693	3081	ValueIterator(typename std::map<Value, Key>::const_iterator _it)
deba@693	3082	: it(_it) {}
deba@693	3083	public:
deba@693	3084
deba@693	3085	ValueIterator() {}
deba@693	3086
deba@693	3087	ValueIterator& operator++() { ++it; return *this; }
deba@693	3088	ValueIterator operator++(int) {
deba@693	3089	ValueIterator tmp(*this);
deba@693	3090	operator++();
deba@693	3091	return tmp;
deba@693	3092	}
deba@693	3093
deba@693	3094	const Value& operator*() const { return it->first; }
deba@693	3095	const Value* operator->() const { return &(it->first); }
deba@693	3096
deba@693	3097	bool operator==(ValueIterator jt) const { return it == jt.it; }
deba@693	3098	bool operator!=(ValueIterator jt) const { return it != jt.it; }
deba@693	3099
deba@693	3100	private:
deba@693	3101	typename std::map<Value, Key>::const_iterator it;
deba@693	3102	};
deba@693	3103
deba@693	3104	/// \brief Returns an iterator to the first value.
deba@693	3105	///
deba@693	3106	/// Returns an stl compatible iterator to the
deba@693	3107	/// first value of the map. The values of the
kpeter@694	3108	/// map can be accessed in the <tt>[beginValue, endValue)</tt>
deba@693	3109	/// range.
deba@693	3110	ValueIterator beginValue() const {
deba@693	3111	return ValueIterator(_first.begin());
deba@693	3112	}
deba@693	3113
deba@693	3114	/// \brief Returns an iterator after the last value.
deba@693	3115	///
deba@693	3116	/// Returns an stl compatible iterator after the
deba@693	3117	/// last value of the map. The values of the
kpeter@694	3118	/// map can be accessed in the <tt>[beginValue, endValue)</tt>
deba@693	3119	/// range.
deba@693	3120	ValueIterator endValue() const {
deba@693	3121	return ValueIterator(_first.end());
deba@693	3122	}
deba@693	3123
deba@693	3124	/// \brief Set operation of the map.
deba@693	3125	///
deba@693	3126	/// Set operation of the map.
deba@693	3127	void set(const Key& key, const Value& value) {
deba@693	3128	unlace(key);
deba@693	3129	Parent::operator[](key).value = value;
deba@693	3130	lace(key);
deba@693	3131	}
deba@693	3132
deba@693	3133	/// \brief Const subscript operator of the map.
deba@693	3134	///
deba@693	3135	/// Const subscript operator of the map.
deba@693	3136	const Value& operator[](const Key& key) const {
deba@693	3137	return Parent::operator[](key).value;
deba@693	3138	}
deba@693	3139
deba@693	3140	/// \brief Iterator for the keys with the same value.
deba@693	3141	///
deba@693	3142	/// Iterator for the keys with the same value. It works
kpeter@694	3143	/// like a graph item iterator, it can be converted to
deba@693	3144	/// the item type of the map, incremented with \c ++ operator, and
kpeter@694	3145	/// if the iterator leaves the last valid item, it will be equal to
deba@693	3146	/// \c INVALID.
kpeter@694	3147	class ItemIt : public Key {
deba@693	3148	public:
kpeter@694	3149	typedef Key Parent;
deba@693	3150
deba@693	3151	/// \brief Invalid constructor \& conversion.
deba@693	3152	///
kpeter@694	3153	/// This constructor initializes the iterator to be invalid.
deba@693	3154	/// \sa Invalid for more details.
deba@693	3155	ItemIt(Invalid) : Parent(INVALID), _map(0) {}
deba@693	3156
deba@693	3157	/// \brief Creates an iterator with a value.
deba@693	3158	///
deba@693	3159	/// Creates an iterator with a value. It iterates on the
deba@693	3160	/// keys which have the given value.
deba@693	3161	/// \param map The IterableValueMap
deba@693	3162	/// \param value The value
deba@693	3163	ItemIt(const IterableValueMap& map, const Value& value) : _map(&map) {
deba@693	3164	typename std::map<Value, Key>::const_iterator it =
deba@693	3165	map._first.find(value);
deba@693	3166	if (it == map._first.end()) {
deba@693	3167	Parent::operator=(INVALID);
deba@693	3168	} else {
deba@693	3169	Parent::operator=(it->second);
deba@693	3170	}
deba@693	3171	}
deba@693	3172
deba@693	3173	/// \brief Increment operator.
deba@693	3174	///
deba@693	3175	/// Increment Operator.
deba@693	3176	ItemIt& operator++() {
deba@693	3177	Parent::operator=(_map->IterableValueMap::Parent::
deba@693	3178	operator[](static_cast<Parent&>(*this)).next);
deba@693	3179	return *this;
deba@693	3180	}
deba@693	3181
deba@693	3182
deba@693	3183	private:
deba@693	3184	const IterableValueMap* _map;
deba@693	3185	};
deba@693	3186
deba@693	3187	protected:
deba@693	3188
deba@693	3189	virtual void add(const Key& key) {
deba@693	3190	Parent::add(key);
deba@693	3191	unlace(key);
deba@693	3192	}
deba@693	3193
deba@693	3194	virtual void add(const std::vector<Key>& keys) {
deba@693	3195	Parent::add(keys);
deba@693	3196	for (int i = 0; i < int(keys.size()); ++i) {
deba@693	3197	lace(keys[i]);
deba@693	3198	}
deba@693	3199	}
deba@693	3200
deba@693	3201	virtual void erase(const Key& key) {
deba@693	3202	unlace(key);
deba@693	3203	Parent::erase(key);
deba@693	3204	}
deba@693	3205
deba@693	3206	virtual void erase(const std::vector<Key>& keys) {
deba@693	3207	for (int i = 0; i < int(keys.size()); ++i) {
deba@693	3208	unlace(keys[i]);
deba@693	3209	}
deba@693	3210	Parent::erase(keys);
deba@693	3211	}
deba@693	3212
deba@693	3213	virtual void build() {
deba@693	3214	Parent::build();
deba@693	3215	for (typename Parent::ItemIt it(*this); it != INVALID; ++it) {
deba@693	3216	lace(it);
deba@693	3217	}
deba@693	3218	}
deba@693	3219
deba@693	3220	virtual void clear() {
deba@693	3221	_first.clear();
deba@693	3222	Parent::clear();
deba@693	3223	}
deba@693	3224
deba@693	3225	private:
deba@693	3226	std::map<Value, Key> _first;
deba@693	3227	};
deba@693	3228
kpeter@559	3229	/// \brief Map of the source nodes of arcs in a digraph.
deba@220	3230	///
kpeter@559	3231	/// SourceMap provides access for the source node of each arc in a digraph,
kpeter@559	3232	/// which is returned by the \c source() function of the digraph.
kpeter@559	3233	/// \tparam GR The digraph type.
deba@220	3234	/// \see TargetMap
kpeter@559	3235	template <typename GR>
deba@220	3236	class SourceMap {
deba@220	3237	public:
deba@220	3238
kpeter@559	3239	///\e
kpeter@559	3240	typedef typename GR::Arc Key;
kpeter@559	3241	///\e
kpeter@559	3242	typedef typename GR::Node Value;
deba@220	3243
deba@220	3244	/// \brief Constructor
deba@220	3245	///
kpeter@559	3246	/// Constructor.
kpeter@313	3247	/// \param digraph The digraph that the map belongs to.
kpeter@559	3248	explicit SourceMap(const GR& digraph) : _graph(digraph) {}
kpeter@559	3249
kpeter@559	3250	/// \brief Returns the source node of the given arc.
deba@220	3251	///
kpeter@559	3252	/// Returns the source node of the given arc.
deba@220	3253	Value operator[](const Key& arc) const {
kpeter@559	3254	return _graph.source(arc);
deba@220	3255	}
deba@220	3256
deba@220	3257	private:
kpeter@559	3258	const GR& _graph;
deba@220	3259	};
deba@220	3260
kpeter@301	3261	/// \brief Returns a \c SourceMap class.
deba@220	3262	///
kpeter@301	3263	/// This function just returns an \c SourceMap class.
deba@220	3264	/// \relates SourceMap
kpeter@559	3265	template <typename GR>
kpeter@559	3266	inline SourceMap<GR> sourceMap(const GR& graph) {
kpeter@559	3267	return SourceMap<GR>(graph);
deba@220	3268	}
deba@220	3269
kpeter@559	3270	/// \brief Map of the target nodes of arcs in a digraph.
deba@220	3271	///
kpeter@559	3272	/// TargetMap provides access for the target node of each arc in a digraph,
kpeter@559	3273	/// which is returned by the \c target() function of the digraph.
kpeter@559	3274	/// \tparam GR The digraph type.
deba@220	3275	/// \see SourceMap
kpeter@559	3276	template <typename GR>
deba@220	3277	class TargetMap {
deba@220	3278	public:
deba@220	3279
kpeter@559	3280	///\e
kpeter@559	3281	typedef typename GR::Arc Key;
kpeter@559	3282	///\e
kpeter@559	3283	typedef typename GR::Node Value;
deba@220	3284
deba@220	3285	/// \brief Constructor
deba@220	3286	///
kpeter@559	3287	/// Constructor.
kpeter@313	3288	/// \param digraph The digraph that the map belongs to.
kpeter@559	3289	explicit TargetMap(const GR& digraph) : _graph(digraph) {}
kpeter@559	3290
kpeter@559	3291	/// \brief Returns the target node of the given arc.
deba@220	3292	///
kpeter@559	3293	/// Returns the target node of the given arc.
deba@220	3294	Value operator[](const Key& e) const {
kpeter@559	3295	return _graph.target(e);
deba@220	3296	}
deba@220	3297
deba@220	3298	private:
kpeter@559	3299	const GR& _graph;
deba@220	3300	};
deba@220	3301
kpeter@301	3302	/// \brief Returns a \c TargetMap class.
deba@220	3303	///
kpeter@301	3304	/// This function just returns a \c TargetMap class.
deba@220	3305	/// \relates TargetMap
kpeter@559	3306	template <typename GR>
kpeter@559	3307	inline TargetMap<GR> targetMap(const GR& graph) {
kpeter@559	3308	return TargetMap<GR>(graph);
deba@220	3309	}
deba@220	3310
kpeter@559	3311	/// \brief Map of the "forward" directed arc view of edges in a graph.
deba@220	3312	///
kpeter@559	3313	/// ForwardMap provides access for the "forward" directed arc view of
kpeter@559	3314	/// each edge in a graph, which is returned by the \c direct() function
kpeter@559	3315	/// of the graph with \c true parameter.
kpeter@559	3316	/// \tparam GR The graph type.
deba@220	3317	/// \see BackwardMap
kpeter@559	3318	template <typename GR>
deba@220	3319	class ForwardMap {
deba@220	3320	public:
deba@220	3321
kpeter@559	3322	typedef typename GR::Arc Value;
kpeter@559	3323	typedef typename GR::Edge Key;
deba@220	3324
deba@220	3325	/// \brief Constructor
deba@220	3326	///
kpeter@559	3327	/// Constructor.
kpeter@313	3328	/// \param graph The graph that the map belongs to.
kpeter@559	3329	explicit ForwardMap(const GR& graph) : _graph(graph) {}
kpeter@559	3330
kpeter@559	3331	/// \brief Returns the "forward" directed arc view of the given edge.
deba@220	3332	///
kpeter@559	3333	/// Returns the "forward" directed arc view of the given edge.
deba@220	3334	Value operator[](const Key& key) const {
deba@220	3335	return _graph.direct(key, true);
deba@220	3336	}
deba@220	3337
deba@220	3338	private:
kpeter@559	3339	const GR& _graph;
deba@220	3340	};
deba@220	3341
kpeter@301	3342	/// \brief Returns a \c ForwardMap class.
deba@220	3343	///
kpeter@301	3344	/// This function just returns an \c ForwardMap class.
deba@220	3345	/// \relates ForwardMap
kpeter@559	3346	template <typename GR>
kpeter@559	3347	inline ForwardMap<GR> forwardMap(const GR& graph) {
kpeter@559	3348	return ForwardMap<GR>(graph);
deba@220	3349	}
deba@220	3350
kpeter@559	3351	/// \brief Map of the "backward" directed arc view of edges in a graph.
deba@220	3352	///
kpeter@559	3353	/// BackwardMap provides access for the "backward" directed arc view of
kpeter@559	3354	/// each edge in a graph, which is returned by the \c direct() function
kpeter@559	3355	/// of the graph with \c false parameter.
kpeter@559	3356	/// \tparam GR The graph type.
deba@220	3357	/// \see ForwardMap
kpeter@559	3358	template <typename GR>
deba@220	3359	class BackwardMap {
deba@220	3360	public:
deba@220	3361
kpeter@559	3362	typedef typename GR::Arc Value;
kpeter@559	3363	typedef typename GR::Edge Key;
deba@220	3364
deba@220	3365	/// \brief Constructor
deba@220	3366	///
kpeter@559	3367	/// Constructor.
kpeter@313	3368	/// \param graph The graph that the map belongs to.
kpeter@559	3369	explicit BackwardMap(const GR& graph) : _graph(graph) {}
kpeter@559	3370
kpeter@559	3371	/// \brief Returns the "backward" directed arc view of the given edge.
deba@220	3372	///
kpeter@559	3373	/// Returns the "backward" directed arc view of the given edge.
deba@220	3374	Value operator[](const Key& key) const {
deba@220	3375	return _graph.direct(key, false);
deba@220	3376	}
deba@220	3377
deba@220	3378	private:
kpeter@559	3379	const GR& _graph;
deba@220	3380	};
deba@220	3381
kpeter@301	3382	/// \brief Returns a \c BackwardMap class
kpeter@301	3383
kpeter@301	3384	/// This function just returns a \c BackwardMap class.
deba@220	3385	/// \relates BackwardMap
kpeter@559	3386	template <typename GR>
kpeter@559	3387	inline BackwardMap<GR> backwardMap(const GR& graph) {
kpeter@559	3388	return BackwardMap<GR>(graph);
deba@220	3389	}
deba@220	3390
kpeter@559	3391	/// \brief Map of the in-degrees of nodes in a digraph.
deba@220	3392	///
deba@220	3393	/// This map returns the in-degree of a node. Once it is constructed,
kpeter@559	3394	/// the degrees are stored in a standard \c NodeMap, so each query is done
deba@220	3395	/// in constant time. On the other hand, the values are updated automatically
deba@220	3396	/// whenever the digraph changes.
deba@220	3397	///
deba@693	3398	/// \warning Besides \c addNode() and \c addArc(), a digraph structure
kpeter@559	3399	/// may provide alternative ways to modify the digraph.
kpeter@559	3400	/// The correct behavior of InDegMap is not guarantied if these additional
kpeter@559	3401	/// features are used. For example the functions
kpeter@559	3402	/// \ref ListDigraph::changeSource() "changeSource()",
deba@220	3403	/// \ref ListDigraph::changeTarget() "changeTarget()" and
deba@220	3404	/// \ref ListDigraph::reverseArc() "reverseArc()"
deba@220	3405	/// of \ref ListDigraph will \e not update the degree values correctly.
deba@220	3406	///
deba@220	3407	/// \sa OutDegMap
kpeter@559	3408	template <typename GR>
deba@220	3409	class InDegMap
kpeter@559	3410	: protected ItemSetTraits<GR, typename GR::Arc>
deba@220	3411	::ItemNotifier::ObserverBase {
deba@220	3412
deba@220	3413	public:
deba@693	3414
kpeter@617	3415	/// The graph type of InDegMap
kpeter@617	3416	typedef GR Graph;
kpeter@559	3417	typedef GR Digraph;
kpeter@559	3418	/// The key type
kpeter@559	3419	typedef typename Digraph::Node Key;
kpeter@559	3420	/// The value type
deba@220	3421	typedef int Value;
deba@220	3422
deba@220	3423	typedef typename ItemSetTraits<Digraph, typename Digraph::Arc>
deba@220	3424	::ItemNotifier::ObserverBase Parent;
deba@220	3425
deba@220	3426	private:
deba@220	3427
deba@220	3428	class AutoNodeMap
deba@220	3429	: public ItemSetTraits<Digraph, Key>::template Map<int>::Type {
deba@220	3430	public:
deba@220	3431
deba@220	3432	typedef typename ItemSetTraits<Digraph, Key>::
deba@220	3433	template Map<int>::Type Parent;
deba@220	3434
deba@220	3435	AutoNodeMap(const Digraph& digraph) : Parent(digraph, 0) {}
deba@220	3436
deba@220	3437	virtual void add(const Key& key) {
deba@220	3438	Parent::add(key);
deba@220	3439	Parent::set(key, 0);
deba@220	3440	}
deba@220	3441
deba@220	3442	virtual void add(const std::vector<Key>& keys) {
deba@220	3443	Parent::add(keys);
deba@220	3444	for (int i = 0; i < int(keys.size()); ++i) {
deba@220	3445	Parent::set(keys[i], 0);
deba@220	3446	}
deba@220	3447	}
deba@220	3448
deba@220	3449	virtual void build() {
deba@220	3450	Parent::build();
deba@220	3451	Key it;
deba@220	3452	typename Parent::Notifier* nf = Parent::notifier();
deba@220	3453	for (nf->first(it); it != INVALID; nf->next(it)) {
deba@220	3454	Parent::set(it, 0);
deba@220	3455	}
deba@220	3456	}
deba@220	3457	};
deba@220	3458
deba@220	3459	public:
deba@220	3460
deba@220	3461	/// \brief Constructor.
deba@220	3462	///
kpeter@559	3463	/// Constructor for creating an in-degree map.
kpeter@559	3464	explicit InDegMap(const Digraph& graph)
kpeter@559	3465	: _digraph(graph), _deg(graph) {
deba@220	3466	Parent::attach(_digraph.notifier(typename Digraph::Arc()));
deba@220	3467
deba@220	3468	for(typename Digraph::NodeIt it(_digraph); it != INVALID; ++it) {
deba@220	3469	_deg[it] = countInArcs(_digraph, it);
deba@220	3470	}
deba@220	3471	}
deba@220	3472
kpeter@559	3473	/// \brief Gives back the in-degree of a Node.
kpeter@559	3474	///
deba@220	3475	/// Gives back the in-degree of a Node.
deba@220	3476	int operator[](const Key& key) const {
deba@220	3477	return _deg[key];
deba@220	3478	}
deba@220	3479
deba@220	3480	protected:
deba@220	3481
deba@220	3482	typedef typename Digraph::Arc Arc;
deba@220	3483
deba@220	3484	virtual void add(const Arc& arc) {
deba@220	3485	++_deg[_digraph.target(arc)];
deba@220	3486	}
deba@220	3487
deba@220	3488	virtual void add(const std::vector<Arc>& arcs) {
deba@220	3489	for (int i = 0; i < int(arcs.size()); ++i) {
deba@220	3490	++_deg[_digraph.target(arcs[i])];
deba@220	3491	}
deba@220	3492	}
deba@220	3493
deba@220	3494	virtual void erase(const Arc& arc) {
deba@220	3495	--_deg[_digraph.target(arc)];
deba@220	3496	}
deba@220	3497
deba@220	3498	virtual void erase(const std::vector<Arc>& arcs) {
deba@220	3499	for (int i = 0; i < int(arcs.size()); ++i) {
deba@220	3500	--_deg[_digraph.target(arcs[i])];
deba@220	3501	}
deba@220	3502	}
deba@220	3503
deba@220	3504	virtual void build() {
deba@220	3505	for(typename Digraph::NodeIt it(_digraph); it != INVALID; ++it) {
deba@220	3506	_deg[it] = countInArcs(_digraph, it);
deba@220	3507	}
deba@220	3508	}
deba@220	3509
deba@220	3510	virtual void clear() {
deba@220	3511	for(typename Digraph::NodeIt it(_digraph); it != INVALID; ++it) {
deba@220	3512	_deg[it] = 0;
deba@220	3513	}
deba@220	3514	}
deba@220	3515	private:
deba@220	3516
deba@220	3517	const Digraph& _digraph;
deba@220	3518	AutoNodeMap _deg;
deba@220	3519	};
deba@220	3520
kpeter@559	3521	/// \brief Map of the out-degrees of nodes in a digraph.
deba@220	3522	///
deba@220	3523	/// This map returns the out-degree of a node. Once it is constructed,
kpeter@559	3524	/// the degrees are stored in a standard \c NodeMap, so each query is done
deba@220	3525	/// in constant time. On the other hand, the values are updated automatically
deba@220	3526	/// whenever the digraph changes.
deba@220	3527	///
deba@693	3528	/// \warning Besides \c addNode() and \c addArc(), a digraph structure
kpeter@559	3529	/// may provide alternative ways to modify the digraph.
kpeter@559	3530	/// The correct behavior of OutDegMap is not guarantied if these additional
kpeter@559	3531	/// features are used. For example the functions
kpeter@559	3532	/// \ref ListDigraph::changeSource() "changeSource()",
deba@220	3533	/// \ref ListDigraph::changeTarget() "changeTarget()" and
deba@220	3534	/// \ref ListDigraph::reverseArc() "reverseArc()"
deba@220	3535	/// of \ref ListDigraph will \e not update the degree values correctly.
deba@220	3536	///
deba@220	3537	/// \sa InDegMap
kpeter@559	3538	template <typename GR>
deba@220	3539	class OutDegMap
kpeter@559	3540	: protected ItemSetTraits<GR, typename GR::Arc>
deba@220	3541	::ItemNotifier::ObserverBase {
deba@220	3542
deba@220	3543	public:
deba@220	3544
kpeter@617	3545	/// The graph type of OutDegMap
kpeter@617	3546	typedef GR Graph;
kpeter@559	3547	typedef GR Digraph;
kpeter@559	3548	/// The key type
kpeter@559	3549	typedef typename Digraph::Node Key;
kpeter@559	3550	/// The value type
deba@220	3551	typedef int Value;
deba@220	3552
deba@220	3553	typedef typename ItemSetTraits<Digraph, typename Digraph::Arc>
deba@220	3554	::ItemNotifier::ObserverBase Parent;
deba@220	3555
deba@220	3556	private:
deba@220	3557
deba@220	3558	class AutoNodeMap
deba@220	3559	: public ItemSetTraits<Digraph, Key>::template Map<int>::Type {
deba@220	3560	public:
deba@220	3561
deba@220	3562	typedef typename ItemSetTraits<Digraph, Key>::
deba@220	3563	template Map<int>::Type Parent;
deba@220	3564
deba@220	3565	AutoNodeMap(const Digraph& digraph) : Parent(digraph, 0) {}
deba@220	3566
deba@220	3567	virtual void add(const Key& key) {
deba@220	3568	Parent::add(key);
deba@220	3569	Parent::set(key, 0);
deba@220	3570	}
deba@220	3571	virtual void add(const std::vector<Key>& keys) {
deba@220	3572	Parent::add(keys);
deba@220	3573	for (int i = 0; i < int(keys.size()); ++i) {
deba@220	3574	Parent::set(keys[i], 0);
deba@220	3575	}
deba@220	3576	}
deba@220	3577	virtual void build() {
deba@220	3578	Parent::build();
deba@220	3579	Key it;
deba@220	3580	typename Parent::Notifier* nf = Parent::notifier();
deba@220	3581	for (nf->first(it); it != INVALID; nf->next(it)) {
deba@220	3582	Parent::set(it, 0);
deba@220	3583	}
deba@220	3584	}
deba@220	3585	};
deba@220	3586
deba@220	3587	public:
deba@220	3588
deba@220	3589	/// \brief Constructor.
deba@220	3590	///
kpeter@559	3591	/// Constructor for creating an out-degree map.
kpeter@559	3592	explicit OutDegMap(const Digraph& graph)
kpeter@559	3593	: _digraph(graph), _deg(graph) {
deba@220	3594	Parent::attach(_digraph.notifier(typename Digraph::Arc()));
deba@220	3595
deba@220	3596	for(typename Digraph::NodeIt it(_digraph); it != INVALID; ++it) {
deba@220	3597	_deg[it] = countOutArcs(_digraph, it);
deba@220	3598	}
deba@220	3599	}
deba@220	3600
kpeter@559	3601	/// \brief Gives back the out-degree of a Node.
kpeter@559	3602	///
deba@220	3603	/// Gives back the out-degree of a Node.
deba@220	3604	int operator[](const Key& key) const {
deba@220	3605	return _deg[key];
deba@220	3606	}
deba@220	3607
deba@220	3608	protected:
deba@220	3609
deba@220	3610	typedef typename Digraph::Arc Arc;
deba@220	3611
deba@220	3612	virtual void add(const Arc& arc) {
deba@220	3613	++_deg[_digraph.source(arc)];
deba@220	3614	}
deba@220	3615
deba@220	3616	virtual void add(const std::vector<Arc>& arcs) {
deba@220	3617	for (int i = 0; i < int(arcs.size()); ++i) {
deba@220	3618	++_deg[_digraph.source(arcs[i])];
deba@220	3619	}
deba@220	3620	}
deba@220	3621
deba@220	3622	virtual void erase(const Arc& arc) {
deba@220	3623	--_deg[_digraph.source(arc)];
deba@220	3624	}
deba@220	3625
deba@220	3626	virtual void erase(const std::vector<Arc>& arcs) {
deba@220	3627	for (int i = 0; i < int(arcs.size()); ++i) {
deba@220	3628	--_deg[_digraph.source(arcs[i])];
deba@220	3629	}
deba@220	3630	}
deba@220	3631
deba@220	3632	virtual void build() {
deba@220	3633	for(typename Digraph::NodeIt it(_digraph); it != INVALID; ++it) {
deba@220	3634	_deg[it] = countOutArcs(_digraph, it);
deba@220	3635	}
deba@220	3636	}
deba@220	3637
deba@220	3638	virtual void clear() {
deba@220	3639	for(typename Digraph::NodeIt it(_digraph); it != INVALID; ++it) {
deba@220	3640	_deg[it] = 0;
deba@220	3641	}
deba@220	3642	}
deba@220	3643	private:
deba@220	3644
deba@220	3645	const Digraph& _digraph;
deba@220	3646	AutoNodeMap _deg;
deba@220	3647	};
deba@220	3648
kpeter@559	3649	/// \brief Potential difference map
kpeter@559	3650	///
kpeter@584	3651	/// PotentialDifferenceMap returns the difference between the potentials of
kpeter@584	3652	/// the source and target nodes of each arc in a digraph, i.e. it returns
kpeter@559	3653	/// \code
kpeter@559	3654	/// potential[gr.target(arc)] - potential[gr.source(arc)].
kpeter@559	3655	/// \endcode
kpeter@559	3656	/// \tparam GR The digraph type.
kpeter@559	3657	/// \tparam POT A node map storing the potentials.
kpeter@559	3658	template <typename GR, typename POT>
kpeter@559	3659	class PotentialDifferenceMap {
kpeter@559	3660	public:
kpeter@559	3661	/// Key type
kpeter@559	3662	typedef typename GR::Arc Key;
kpeter@559	3663	/// Value type
kpeter@559	3664	typedef typename POT::Value Value;
kpeter@559	3665
kpeter@559	3666	/// \brief Constructor
kpeter@559	3667	///
kpeter@559	3668	/// Contructor of the map.
kpeter@559	3669	explicit PotentialDifferenceMap(const GR& gr,
kpeter@559	3670	const POT& potential)
kpeter@559	3671	: _digraph(gr), _potential(potential) {}
kpeter@559	3672
kpeter@559	3673	/// \brief Returns the potential difference for the given arc.
kpeter@559	3674	///
kpeter@559	3675	/// Returns the potential difference for the given arc, i.e.
kpeter@559	3676	/// \code
kpeter@559	3677	/// potential[gr.target(arc)] - potential[gr.source(arc)].
kpeter@559	3678	/// \endcode
kpeter@559	3679	Value operator[](const Key& arc) const {
kpeter@559	3680	return _potential[_digraph.target(arc)] -
kpeter@559	3681	_potential[_digraph.source(arc)];
kpeter@559	3682	}
kpeter@559	3683
kpeter@559	3684	private:
kpeter@559	3685	const GR& _digraph;
kpeter@559	3686	const POT& _potential;
kpeter@559	3687	};
kpeter@559	3688
kpeter@559	3689	/// \brief Returns a PotentialDifferenceMap.
kpeter@559	3690	///
kpeter@559	3691	/// This function just returns a PotentialDifferenceMap.
kpeter@559	3692	/// \relates PotentialDifferenceMap
kpeter@559	3693	template <typename GR, typename POT>
kpeter@559	3694	PotentialDifferenceMap<GR, POT>
kpeter@559	3695	potentialDifferenceMap(const GR& gr, const POT& potential) {
kpeter@559	3696	return PotentialDifferenceMap<GR, POT>(gr, potential);
kpeter@559	3697	}
kpeter@559	3698
alpar@25	3699	/// @}
alpar@25	3700	}
alpar@25	3701
alpar@25	3702	#endif // LEMON_MAPS_H

author	Peter Kovacs <kpeter@inf.elte.hu>
	Fri, 25 Sep 2009 11:58:34 +0200
changeset 729	be48a648d28f
parent 684	7b1a6e963018
parent 694	71939d63ae77
child 717	684964884a2e
permissions	-rw-r--r--