alpar@209: /* -*- mode: C++; indent-tabs-mode: nil; -*- deba@57: * alpar@209: * This file is a part of LEMON, a generic C++ optimization library. deba@57: * alpar@107: * Copyright (C) 2003-2008 deba@57: * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport deba@57: * (Egervary Research Group on Combinatorial Optimization, EGRES). deba@57: * deba@57: * Permission to use, modify and distribute this software is granted deba@57: * provided that this copyright notice appears in all copies. For deba@57: * precise terms see the accompanying LICENSE file. deba@57: * deba@57: * This software is provided "AS IS" with no warranty of any kind, deba@57: * express or implied, and with no claim as to its suitability for any deba@57: * purpose. deba@57: * deba@57: */ deba@57: deba@57: #ifndef LEMON_BITS_MAP_EXTENDER_H deba@57: #define LEMON_BITS_MAP_EXTENDER_H deba@57: deba@57: #include deba@57: deba@57: #include deba@57: deba@57: #include deba@57: #include deba@57: kpeter@314: //\file kpeter@314: //\brief Extenders for iterable maps. deba@57: deba@57: namespace lemon { deba@57: kpeter@314: // \ingroup graphbits kpeter@314: // kpeter@314: // \brief Extender for maps deba@57: template deba@57: class MapExtender : public _Map { deba@57: public: deba@57: deba@57: typedef _Map Parent; deba@57: typedef MapExtender Map; deba@57: deba@57: deba@57: typedef typename Parent::Graph Graph; deba@57: typedef typename Parent::Key Item; deba@57: deba@57: typedef typename Parent::Key Key; deba@57: typedef typename Parent::Value Value; deba@57: deba@57: class MapIt; deba@57: class ConstMapIt; deba@57: deba@57: friend class MapIt; deba@57: friend class ConstMapIt; deba@57: deba@57: public: deba@57: alpar@209: MapExtender(const Graph& graph) deba@57: : Parent(graph) {} deba@57: alpar@209: MapExtender(const Graph& graph, const Value& value) deba@57: : Parent(graph, value) {} deba@57: kpeter@263: private: deba@57: MapExtender& operator=(const MapExtender& cmap) { deba@57: return operator=(cmap); deba@57: } deba@57: deba@57: template deba@57: MapExtender& operator=(const CMap& cmap) { deba@57: Parent::operator=(cmap); deba@57: return *this; alpar@209: } deba@57: kpeter@263: public: deba@57: class MapIt : public Item { deba@57: public: alpar@209: deba@57: typedef Item Parent; deba@57: typedef typename Map::Value Value; alpar@209: kpeter@707: MapIt() : map(NULL) {} deba@57: kpeter@707: MapIt(Invalid i) : Parent(i), map(NULL) {} deba@57: kpeter@707: explicit MapIt(Map& _map) : map(&_map) { kpeter@707: map->notifier()->first(*this); deba@57: } deba@57: alpar@209: MapIt(const Map& _map, const Item& item) kpeter@707: : Parent(item), map(&_map) {} deba@57: alpar@209: MapIt& operator++() { kpeter@707: map->notifier()->next(*this); alpar@209: return *this; deba@57: } alpar@209: deba@57: typename MapTraits::ConstReturnValue operator*() const { kpeter@707: return (*map)[*this]; deba@57: } deba@57: deba@57: typename MapTraits::ReturnValue operator*() { kpeter@707: return (*map)[*this]; deba@57: } alpar@209: deba@57: void set(const Value& value) { kpeter@707: map->set(*this, value); deba@57: } alpar@209: deba@57: protected: kpeter@707: Map* map; alpar@209: deba@57: }; deba@57: deba@57: class ConstMapIt : public Item { deba@57: public: deba@57: deba@57: typedef Item Parent; deba@57: deba@57: typedef typename Map::Value Value; alpar@209: kpeter@707: ConstMapIt() : map(NULL) {} deba@57: kpeter@707: ConstMapIt(Invalid i) : Parent(i), map(NULL) {} deba@57: kpeter@707: explicit ConstMapIt(Map& _map) : map(&_map) { kpeter@707: map->notifier()->first(*this); deba@57: } deba@57: alpar@209: ConstMapIt(const Map& _map, const Item& item) alpar@209: : Parent(item), map(_map) {} deba@57: alpar@209: ConstMapIt& operator++() { kpeter@707: map->notifier()->next(*this); alpar@209: return *this; deba@57: } deba@57: deba@57: typename MapTraits::ConstReturnValue operator*() const { alpar@209: return map[*this]; deba@57: } deba@57: deba@57: protected: kpeter@707: const Map* map; deba@57: }; deba@57: deba@57: class ItemIt : public Item { deba@57: public: alpar@209: deba@57: typedef Item Parent; alpar@209: kpeter@707: ItemIt() : map(NULL) {} deba@57: kpeter@707: ItemIt(Invalid i) : Parent(i), map(NULL) {} deba@57: kpeter@707: explicit ItemIt(Map& _map) : map(&_map) { kpeter@707: map->notifier()->first(*this); deba@57: } deba@57: alpar@209: ItemIt(const Map& _map, const Item& item) kpeter@707: : Parent(item), map(&_map) {} deba@57: alpar@209: ItemIt& operator++() { kpeter@707: map->notifier()->next(*this); alpar@209: return *this; deba@57: } deba@57: deba@57: protected: kpeter@707: const Map* map; alpar@209: deba@57: }; deba@57: }; deba@57: kpeter@314: // \ingroup graphbits kpeter@314: // kpeter@314: // \brief Extender for maps which use a subset of the items. deba@57: template deba@57: class SubMapExtender : public _Map { deba@57: public: deba@57: deba@57: typedef _Map Parent; deba@57: typedef SubMapExtender Map; deba@57: deba@57: typedef _Graph Graph; deba@57: deba@57: typedef typename Parent::Key Item; deba@57: deba@57: typedef typename Parent::Key Key; deba@57: typedef typename Parent::Value Value; deba@57: deba@57: class MapIt; deba@57: class ConstMapIt; deba@57: deba@57: friend class MapIt; deba@57: friend class ConstMapIt; deba@57: deba@57: public: deba@57: alpar@209: SubMapExtender(const Graph& _graph) deba@57: : Parent(_graph), graph(_graph) {} deba@57: alpar@209: SubMapExtender(const Graph& _graph, const Value& _value) deba@57: : Parent(_graph, _value), graph(_graph) {} deba@57: kpeter@263: private: deba@57: SubMapExtender& operator=(const SubMapExtender& cmap) { deba@57: return operator=(cmap); deba@57: } deba@57: deba@57: template deba@57: SubMapExtender& operator=(const CMap& cmap) { deba@57: checkConcept, CMap>(); deba@57: Item it; deba@57: for (graph.first(it); it != INVALID; graph.next(it)) { deba@57: Parent::set(it, cmap[it]); deba@57: } deba@57: return *this; alpar@209: } deba@57: kpeter@263: public: deba@57: class MapIt : public Item { deba@57: public: alpar@209: deba@57: typedef Item Parent; deba@57: typedef typename Map::Value Value; alpar@209: kpeter@707: MapIt() : map(NULL) {} deba@57: kpeter@707: MapIt(Invalid i) : Parent(i), map(NULL) { } deba@57: kpeter@707: explicit MapIt(Map& _map) : map(&_map) { kpeter@707: map->graph.first(*this); deba@57: } deba@57: alpar@209: MapIt(const Map& _map, const Item& item) kpeter@707: : Parent(item), map(&_map) {} deba@57: alpar@209: MapIt& operator++() { kpeter@707: map->graph.next(*this); alpar@209: return *this; deba@57: } alpar@209: deba@57: typename MapTraits::ConstReturnValue operator*() const { kpeter@707: return (*map)[*this]; deba@57: } deba@57: deba@57: typename MapTraits::ReturnValue operator*() { kpeter@707: return (*map)[*this]; deba@57: } alpar@209: deba@57: void set(const Value& value) { kpeter@707: map->set(*this, value); deba@57: } alpar@209: deba@57: protected: kpeter@707: Map* map; alpar@209: deba@57: }; deba@57: deba@57: class ConstMapIt : public Item { deba@57: public: deba@57: deba@57: typedef Item Parent; deba@57: deba@57: typedef typename Map::Value Value; alpar@209: kpeter@707: ConstMapIt() : map(NULL) {} deba@57: kpeter@707: ConstMapIt(Invalid i) : Parent(i), map(NULL) { } deba@57: kpeter@707: explicit ConstMapIt(Map& _map) : map(&_map) { kpeter@707: map->graph.first(*this); deba@57: } deba@57: alpar@209: ConstMapIt(const Map& _map, const Item& item) kpeter@707: : Parent(item), map(&_map) {} deba@57: alpar@209: ConstMapIt& operator++() { kpeter@707: map->graph.next(*this); alpar@209: return *this; deba@57: } deba@57: deba@57: typename MapTraits::ConstReturnValue operator*() const { kpeter@707: return (*map)[*this]; deba@57: } deba@57: deba@57: protected: kpeter@707: const Map* map; deba@57: }; deba@57: deba@57: class ItemIt : public Item { deba@57: public: alpar@209: deba@57: typedef Item Parent; alpar@209: kpeter@707: ItemIt() : map(NULL) {} deba@57: kpeter@707: ItemIt(Invalid i) : Parent(i), map(NULL) { } deba@57: kpeter@707: explicit ItemIt(Map& _map) : map(&_map) { kpeter@707: map->graph.first(*this); deba@57: } deba@57: alpar@209: ItemIt(const Map& _map, const Item& item) kpeter@707: : Parent(item), map(&_map) {} deba@57: alpar@209: ItemIt& operator++() { kpeter@707: map->graph.next(*this); alpar@209: return *this; deba@57: } deba@57: deba@57: protected: kpeter@707: const Map* map; alpar@209: deba@57: }; alpar@209: deba@57: private: deba@57: deba@57: const Graph& graph; alpar@209: deba@57: }; deba@57: deba@57: } deba@57: deba@57: #endif