lemon-main: comparison lemon/maps.h

equal deleted inserted replaced

-:239391a057b4
+:28a4de500635
 /// This map can be used if you have to provide a map only for
 /// its type definitions, or if you have to provide a writable map,
 /// but data written to it is not required (i.e. it will be sent to
 /// <tt>/dev/null</tt>).
-/// It conforms the \ref concepts::ReadWriteMap "ReadWriteMap" concept.
+/// It conforms to the \ref concepts::ReadWriteMap "ReadWriteMap" concept.
 ///
 /// \sa ConstMap
 template<typename K, typename V>
 class NullMap : public MapBase<K, V> {
 public:
 /// This \ref concepts::ReadMap "readable map" assigns a specified
 /// value to each key.
 ///
 /// In other aspects it is equivalent to \c NullMap.
-/// So it conforms the \ref concepts::ReadWriteMap "ReadWriteMap"
+/// So it conforms to the \ref concepts::ReadWriteMap "ReadWriteMap"
 /// concept, but it absorbs the data written to it.
 ///
 /// The simplest way of using this map is through the constMap()
 /// function.
 ///
 /// This \ref concepts::ReadMap "readable map" assigns a specified
 /// value to each key.
 ///
 /// In other aspects it is equivalent to \c NullMap.
-/// So it conforms the \ref concepts::ReadWriteMap "ReadWriteMap"
+/// So it conforms to the \ref concepts::ReadWriteMap "ReadWriteMap"
 /// concept, but it absorbs the data written to it.
 ///
 /// The simplest way of using this map is through the constMap()
 /// function.
 ///
 ///
 /// This map is essentially a wrapper for \c std::vector. It assigns
 /// values to integer keys from the range <tt>[0..size-1]</tt>.
 /// It can be used with some data structures, for example
 /// \c UnionFind, \c BinHeap, when the used items are small
-/// integers. This map conforms the \ref concepts::ReferenceMap
+/// integers. This map conforms to the \ref concepts::ReferenceMap
 /// "ReferenceMap" concept.
 ///
 /// The simplest way of using this map is through the rangeMap()
 /// function.
 template <typename V>
 /// This map is essentially a wrapper for \c std::map with addition
 /// that you can specify a default value for the keys that are not
 /// stored actually. This value can be different from the default
 /// contructed value (i.e. \c %Value()).
-/// This type conforms the \ref concepts::ReferenceMap "ReferenceMap"
+/// This type conforms to the \ref concepts::ReferenceMap "ReferenceMap"
 /// concept.
 ///
 /// This map is useful if a default value should be assigned to most of
 /// the keys and different values should be assigned only to a few
 /// keys (i.e. the map is "sparse").
 /// Map adaptor to convert the \c Value type of a \ref concepts::ReadMap
 /// "readable map" to another type using the default conversion.
 /// The \c Key type of it is inherited from \c M and the \c Value
 /// type is \c V.
-/// This type conforms the \ref concepts::ReadMap "ReadMap" concept.
+/// This type conforms to the \ref concepts::ReadMap "ReadMap" concept.
 ///
 /// The simplest way of using this map is through the convertMap()
 /// function.
 template <typename M, typename V>
 class ConvertMap : public MapBase<typename M::Key, V> {
 private:
 const Graph* _graph;
 public:
-/// \brief This class represents the inverse of its owner (IdMap).
+/// \brief The inverse map type of IdMap.
 ///
-/// This class represents the inverse of its owner (IdMap).
+/// The inverse map type of IdMap. The subscript operator gives back
+/// an item by its id.
+/// This type conforms to the \ref concepts::ReadMap "ReadMap" concept.
 /// \see inverse()
 class InverseMap {
 public:
 /// \brief Constructor.
 /// \brief Constructor.
 ///
 /// Constructor for creating an id-to-item map.
 explicit InverseMap(const IdMap& map) : _graph(map._graph) {}
-/// \brief Gives back the given item from its id.
+/// \brief Gives back an item by its id.
 ///
-/// Gives back the given item from its id.
+/// Gives back an item by its id.
 Item operator[](int id) const { return _graph->fromId(id, Item());}
 private:
 const Graph* _graph;
 };
 /// \brief General cross reference graph map type.
 /// This class provides simple invertable graph maps.
 /// It wraps a standard graph map (\c NodeMap, \c ArcMap or \c EdgeMap)
 /// and if a key is set to a new value, then stores it in the inverse map.
-/// The values of the map can be accessed
+/// The graph items can be accessed by their values either using
-/// with stl compatible forward iterator.
+/// \c InverseMap or \c operator()(), and the values of the map can be
+/// accessed with an STL compatible forward iterator (\c ValueIterator).
+///
+/// This map is intended to be used when all associated values are
+/// different (the map is actually invertable) or there are only a few
+/// items with the same value.
+/// Otherwise consider to use \c IterableValueMap, which is more
+/// suitable and more efficient for such cases. It provides iterators
+/// to traverse the items with the same associated value, however
+/// it does not have \c InverseMap.
 ///
 /// This type is not reference map, so it cannot be modified with
 /// the subscript operator.
 ///
 /// \tparam GR The graph type.
 /// Construct a new CrossRefMap for the given graph.
 explicit CrossRefMap(const Graph& graph) : Map(graph) {}
 /// \brief Forward iterator for values.
 ///
-/// This iterator is an stl compatible forward
+/// This iterator is an STL compatible forward
 /// iterator on the values of the map. The values can
 /// be accessed in the <tt>[beginValue, endValue)</tt> range.
 /// They are considered with multiplicity, so each value is
 /// traversed for each item it is assigned to.
 class ValueIterator
 private:
 ValueIterator(typename Container::const_iterator _it)
 : it(_it) {}
 public:
+/// Constructor
 ValueIterator() {}
+/// \e
 ValueIterator& operator++() { ++it; return *this; }
+/// \e
 ValueIterator operator++(int) {
 ValueIterator tmp(*this);
 operator++();
 return tmp;
 }
+/// \e
 const Value& operator*() const { return it->first; }
+/// \e
 const Value* operator->() const { return &(it->first); }
+/// \e
 bool operator==(ValueIterator jt) const { return it == jt.it; }
+/// \e
 bool operator!=(ValueIterator jt) const { return it != jt.it; }
 private:
 typename Container::const_iterator it;
 };
 /// \brief Returns an iterator to the first value.
 ///
-/// Returns an stl compatible iterator to the
+/// Returns an STL compatible iterator to the
 /// first value of the map. The values of the
 /// map can be accessed in the <tt>[beginValue, endValue)</tt>
 /// range.
 ValueIterator beginValue() const {
 return ValueIterator(_inv_map.begin());
 }
 /// \brief Returns an iterator after the last value.
 ///
-/// Returns an stl compatible iterator after the
+/// Returns an STL compatible iterator after the
 /// last value of the map. The values of the
 /// map can be accessed in the <tt>[beginValue, endValue)</tt>
 /// range.
 ValueIterator endValue() const {
 return ValueIterator(_inv_map.end());
 Map::clear();
 }
 public:
-/// \brief The inverse map type.
+/// \brief The inverse map type of CrossRefMap.
 ///
-/// The inverse of this map. The subscript operator of the map
+/// The inverse map type of CrossRefMap. The subscript operator gives
-/// gives back the item that was last assigned to the value.
+/// back an item by its value.
+/// This type conforms to the \ref concepts::ReadMap "ReadMap" concept.
+/// \see inverse()
 class InverseMap {
 public:
 /// \brief Constructor
 ///
 /// Constructor of the InverseMap.
 private:
 const CrossRefMap& _inverted;
 };
-/// \brief It gives back the read-only inverse map.
+/// \brief Gives back the inverse of the map.
 ///
-/// It gives back the read-only inverse map.
+/// Gives back the inverse of the CrossRefMap.
 InverseMap inverse() const {
 return InverseMap(*this);
 }
 };
 _inv_map[qi] = p;
 Map::set(q, pi);
 _inv_map[pi] = q;
 }
-/// \brief Gives back the \e RangeId of the item
+/// \brief Gives back the \e range \e id of the item
 ///
-/// Gives back the \e RangeId of the item.
+/// Gives back the \e range \e id of the item.
 int operator[](const Item& item) const {
 return Map::operator[](item);
 }
-/// \brief Gives back the item belonging to a \e RangeId
+/// \brief Gives back the item belonging to a \e range \e id
 ///
-/// Gives back the item belonging to a \e RangeId.
+/// Gives back the item belonging to the given \e range \e id.
 Item operator()(int id) const {
 return _inv_map[id];
 }
 private:
 public:
 /// \brief The inverse map type of RangeIdMap.
 ///
-/// The inverse map type of RangeIdMap.
+/// The inverse map type of RangeIdMap. The subscript operator gives
+/// back an item by its \e range \e id.
+/// This type conforms to the \ref concepts::ReadMap "ReadMap" concept.
 class InverseMap {
 public:
 /// \brief Constructor
 ///
 /// Constructor of the InverseMap.
 typedef typename RangeIdMap::Value Key;
 /// \brief Subscript operator.
 ///
 /// Subscript operator. It gives back the item
-/// that the descriptor currently belongs to.
+/// that the given \e range \e id currently belongs to.
 Value operator[](const Key& key) const {
 return _inverted(key);
 }
 /// \brief Size of the map.
 const RangeIdMap& _inverted;
 };
 /// \brief Gives back the inverse of the map.
 ///
-/// Gives back the inverse of the map.
+/// Gives back the inverse of the RangeIdMap.
 const InverseMap inverse() const {
 return InverseMap(*this);
 }
 };
 /// \brief Dynamic iterable \c bool map.
 ///
 /// This class provides a special graph map type which can store a
 /// \c bool value for graph items (\c Node, \c Arc or \c Edge).
 /// For both \c true and \c false values it is possible to iterate on
-/// the keys.
+/// the keys mapped to the value.
 ///
 /// This type is a reference map, so it can be modified with the
-/// subscription operator.
+/// subscript operator.
 ///
 /// \tparam GR The graph type.
 /// \tparam K The key type of the map (\c GR::Node, \c GR::Arc or
 /// \c GR::Edge).
 ///
 /// This class provides a special graph map type which can store an
 /// integer value for graph items (\c Node, \c Arc or \c Edge).
 /// For each non-negative value it is possible to iterate on the keys
 /// mapped to the value.
 ///
+/// This map is intended to be used with small integer values, for which
+/// it is efficient, and supports iteration only for non-negative values.
+/// If you need large values and/or iteration for negative integers,
+/// consider to use \ref IterableValueMap instead.
+///
 /// This type is a reference map, so it can be modified with the
-/// subscription operator.
+/// subscript operator.
 ///
 /// \note The size of the data structure depends on the largest
 /// value in the map.
 ///
 /// \tparam GR The graph type.
 };
 }
 /// \brief Dynamic iterable map for comparable values.
 ///
-/// This class provides a special graph map type which can store an
+/// This class provides a special graph map type which can store a
 /// comparable value for graph items (\c Node, \c Arc or \c Edge).
 /// For each value it is possible to iterate on the keys mapped to
-/// the value.
+/// the value (\c ItemIt), and the values of the map can be accessed
-///
+/// with an STL compatible forward iterator (\c ValueIterator).
-/// The map stores for each value a linked list with
+/// The map stores a linked list for each value, which contains
-/// the items which mapped to the value, and the values are stored
+/// the items mapped to the value, and the used values are stored
-/// in balanced binary tree. The values of the map can be accessed
+/// in balanced binary tree (\c std::map).
-/// with stl compatible forward iterator.
+///
+/// \ref IterableBoolMap and \ref IterableIntMap are similar classes
+/// specialized for \c bool and \c int values, respectively.
 ///
 /// This type is not reference map, so it cannot be modified with
-/// the subscription operator.
+/// the subscript operator.
 ///
 /// \tparam GR The graph type.
 /// \tparam K The key type of the map (\c GR::Node, \c GR::Arc or
 /// \c GR::Edge).
 /// \tparam V The value type of the map. It can be any comparable
 public:
 /// \brief Forward iterator for values.
 ///
-/// This iterator is an stl compatible forward
+/// This iterator is an STL compatible forward
 /// iterator on the values of the map. The values can
 /// be accessed in the <tt>[beginValue, endValue)</tt> range.
 class ValueIterator
 : public std::iterator<std::forward_iterator_tag, Value> {
 friend class IterableValueMap;
 private:
 ValueIterator(typename std::map<Value, Key>::const_iterator _it)
 : it(_it) {}
 public:
+/// Constructor
 ValueIterator() {}
+/// \e
 ValueIterator& operator++() { ++it; return *this; }
+/// \e
 ValueIterator operator++(int) {
 ValueIterator tmp(*this);
 operator++();
 return tmp;
 }
+/// \e
 const Value& operator*() const { return it->first; }
+/// \e
 const Value* operator->() const { return &(it->first); }
+/// \e
 bool operator==(ValueIterator jt) const { return it == jt.it; }
+/// \e
 bool operator!=(ValueIterator jt) const { return it != jt.it; }
 private:
 typename std::map<Value, Key>::const_iterator it;
 };
 /// \brief Returns an iterator to the first value.
 ///
-/// Returns an stl compatible iterator to the
+/// Returns an STL compatible iterator to the
 /// first value of the map. The values of the
 /// map can be accessed in the <tt>[beginValue, endValue)</tt>
 /// range.
 ValueIterator beginValue() const {
 return ValueIterator(_first.begin());
 }
 /// \brief Returns an iterator after the last value.
 ///
-/// Returns an stl compatible iterator after the
+/// Returns an STL compatible iterator after the
 /// last value of the map. The values of the
 /// map can be accessed in the <tt>[beginValue, endValue)</tt>
 /// range.
 ValueIterator endValue() const {
 return ValueIterator(_first.end());

changeset 722	b52189c479fb
parent 721	99124ea4f048
child 724	d8073df341f6