RhodeCode

/* -*- mode: C++; indent-tabs-mode: nil; -*-

 *

 * This file is a part of LEMON, a generic C++ optimization library.

 *

 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport

 * (Egervary Research Group on Combinatorial Optimization, EGRES).

 *

 * Permission to use, modify and distribute this software is granted

 * provided that this copyright notice appears in all copies. For

 * precise terms see the accompanying LICENSE file.

 *

 * This software is provided "AS IS" with no warranty of any kind,

 * express or implied, and with no claim as to its suitability for any

 * purpose.

 *

 */

/**

\dir demo

\brief A collection of demo applications.

This directory contains several simple demo applications, mainly

for educational purposes.

*/

/**

\dir doc

\brief Auxiliary (and the whole generated) documentation.

/**

\dir lemon

\brief Base include directory of LEMON.

This is the base directory of LEMON includes, so each include file must be

prefixed with this, e.g.

\code

#include<lemon/list_graph.h>

#include<lemon/dijkstra.h>

\endcode

*/

/**

\dir concepts

\brief Concept descriptors and checking classes.

This directory contains the concept descriptors and concept checking tools.

For more information see the \ref concept "Concepts" module.

*/

/**

\dir bits

\brief Auxiliary tools for implementation.

maps and some other classes.

As a user you typically don't have to deal with these files.

*/

/* -*- mode: C++; indent-tabs-mode: nil; -*-

 *

 * This file is a part of LEMON, a generic C++ optimization library.

 *

 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport

 * (Egervary Research Group on Combinatorial Optimization, EGRES).

 *

 * Permission to use, modify and distribute this software is granted

 * provided that this copyright notice appears in all copies. For

 * precise terms see the accompanying LICENSE file.

 *

 * This software is provided "AS IS" with no warranty of any kind,

 * express or implied, and with no claim as to its suitability for any

 * purpose.

 *

 */

/**

@defgroup datas Data Structures

This group describes the several data structures implemented in LEMON.

*/

/**

@defgroup graphs Graph Structures

@ingroup datas

\brief Graph structures implemented in LEMON.

The implementation of combinatorial algorithms heavily relies on

  should compile with these classes. (Though it will not run properly,

  of course.) In this way it is easily to check if an algorithm

  doesn't use any extra feature of a certain implementation.

- The concept descriptor classes also provide a <em>checker class</em>

  that makes it possible to check whether a certain implementation of a

  concept indeed provides all the required features.

- Finally, They can serve as a skeleton of a new implementation of a concept.

*/

/**

@defgroup graph_concepts Graph Structure Concepts

@ingroup concept

\brief Skeleton and concept checking classes for graph structures

This group describes the skeletons and concept checking classes of LEMON's

graph structures and helper classes used to implement these.

*/

/**

@defgroup map_concepts Map Concepts

@ingroup concept

\brief Skeleton and concept checking classes for maps

This group describes the skeletons and concept checking classes of maps.

*/

/**

\anchor demoprograms

@defgroup demos Demo programs

Some demo programs are listed here. Their full source codes can be found in

the \c demo subdirectory of the source tree.

It order to compile them, use <tt>--enable-demo</tt> configure option when

build the library.

*/

/* -*- mode: C++; indent-tabs-mode: nil; -*-

 *

 * This file is a part of LEMON, a generic C++ optimization library.

 *

 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport

 * (Egervary Research Group on Combinatorial Optimization, EGRES).

 *

 * Permission to use, modify and distribute this software is granted

 * provided that this copyright notice appears in all copies. For

 * precise terms see the accompanying LICENSE file.

 *

 * This software is provided "AS IS" with no warranty of any kind,

 * express or implied, and with no claim as to its suitability for any

 * purpose.

 *

 */

namespace lemon {

/*!

\page lgf-format LEMON Graph Format (LGF)

The \e LGF is a <em>column oriented</em>

file format for storing graphs and associated data like

node and edge maps.

/* -*- mode: C++; indent-tabs-mode: nil; -*-

 *

 * This file is a part of LEMON, a generic C++ optimization library.

 *

 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport

 * (Egervary Research Group on Combinatorial Optimization, EGRES).

 *

 * Permission to use, modify and distribute this software is granted

 * provided that this copyright notice appears in all copies. For

 * precise terms see the accompanying LICENSE file.

 *

 * This software is provided "AS IS" with no warranty of any kind,

 * express or implied, and with no claim as to its suitability for any

 * purpose.

 *

 */

///\file

///\brief Some basic non-inline functions and static global data.

#include<lemon/tolerance.h>

#include<lemon/core.h>

namespace lemon {

  float Tolerance<float>::def_epsilon = static_cast<float>(1e-4);

  double Tolerance<double>::def_epsilon = 1e-10;

  long double Tolerance<long double>::def_epsilon = 1e-14;

/* -*- mode: C++; indent-tabs-mode: nil; -*-

 *

 * This file is a part of LEMON, a generic C++ optimization library.

 *

 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport

 * (Egervary Research Group on Combinatorial Optimization, EGRES).

 *

 * Permission to use, modify and distribute this software is granted

 * provided that this copyright notice appears in all copies. For

 * precise terms see the accompanying LICENSE file.

 *

 * This software is provided "AS IS" with no warranty of any kind,

 * express or implied, and with no claim as to its suitability for any

 * purpose.

 *

 */

#ifndef LEMON_BITS_DEFAULT_MAP_H

#define LEMON_BITS_DEFAULT_MAP_H

#include <lemon/config.h>

#include <lemon/bits/array_map.h>

#include <lemon/bits/vector_map.h>

//#include <lemon/bits/debug_map.h>

//\ingroup graphbits

//\file

//\brief Graph maps that construct and destruct their elements dynamically.

/* -*- mode: C++; indent-tabs-mode: nil; -*-

 *

 * This file is a part of LEMON, a generic C++ optimization library.

 *

 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport

 * (Egervary Research Group on Combinatorial Optimization, EGRES).

 *

 * Permission to use, modify and distribute this software is granted

 * provided that this copyright notice appears in all copies. For

 * precise terms see the accompanying LICENSE file.

 *

 * This software is provided "AS IS" with no warranty of any kind,

 * express or implied, and with no claim as to its suitability for any

 * purpose.

 *

 */

#ifndef LEMON_BITS_MAP_EXTENDER_H

#define LEMON_BITS_MAP_EXTENDER_H

#include <iterator>

#include <lemon/bits/traits.h>

#include <lemon/concept_check.h>

#include <lemon/concepts/maps.h>

//\file

/* -*- mode: C++; indent-tabs-mode: nil; -*-

 *

 * This file is a part of LEMON, a generic C++ optimization library.

 *

 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport

 * (Egervary Research Group on Combinatorial Optimization, EGRES).

 *

 * Permission to use, modify and distribute this software is granted

 * provided that this copyright notice appears in all copies. For

 * precise terms see the accompanying LICENSE file.

 *

 * This software is provided "AS IS" with no warranty of any kind,

 * express or implied, and with no claim as to its suitability for any

 * purpose.

 *

 */

#ifndef LEMON_BITS_PRED_MAP_PATH_H

#define LEMON_BITS_PRED_MAP_PATH_H

namespace lemon {

  template <typename _Digraph, typename _PredMap>

  class PredMapPath {

  public:

    typedef True RevPathTag;

    typedef _Digraph Digraph;

/* -*- mode: C++; indent-tabs-mode: nil; -*-

 *

 * This file is a part of LEMON, a generic C++ optimization library.

 *

 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport

 * (Egervary Research Group on Combinatorial Optimization, EGRES).

 *

 * Permission to use, modify and distribute this software is granted

 * provided that this copyright notice appears in all copies. For

 * precise terms see the accompanying LICENSE file.

 *

 * This software is provided "AS IS" with no warranty of any kind,

 * express or implied, and with no claim as to its suitability for any

 * purpose.

 *

 */

///\file

///\brief Some basic non-inline functions and static global data.

#include<lemon/bits/windows.h>

#ifdef WIN32

#ifndef WIN32_LEAN_AND_MEAN

#define WIN32_LEAN_AND_MEAN

#endif

#ifndef NOMINMAX

#define NOMINMAX

        cstime = 0;

      }

#else

      timeval tv;

      gettimeofday(&tv, 0);

      rtime=tv.tv_sec+double(tv.tv_usec)/1e6;

      tms ts;

      double tck=sysconf(_SC_CLK_TCK);

      times(&ts);

      utime=ts.tms_utime/tck;

      stime=ts.tms_stime/tck;

      cutime=ts.tms_cutime/tck;

      cstime=ts.tms_cstime/tck;

#endif

    }

    std::string getWinFormattedDate()

    {

      std::ostringstream os;

#ifdef WIN32

      SYSTEMTIME time;

      GetSystemTime(&time);

      char buf1[11], buf2[9], buf3[5];

                        ("ddd MMM dd"), buf1, 11) &&

          GetTimeFormat(MY_LOCALE, 0, &time,

                        ("HH':'mm':'ss"), buf2, 9) &&

          GetDateFormat(MY_LOCALE, 0, &time,

                        ("yyyy"), buf3, 5)) {

        os << buf1 << ' ' << buf2 << ' ' << buf3;

      }

      else os << "unknown";

#else

      timeval tv;

      gettimeofday(&tv, 0);

      char cbuf[26];

      ctime_r(&tv.tv_sec,cbuf);

      os << cbuf;

#endif

      return os.str();

    }

    int getWinRndSeed()

    {

#ifdef WIN32

      FILETIME time;

      GetSystemTimeAsFileTime(&time);

/* -*- mode: C++; indent-tabs-mode: nil; -*-

 *

 * This file is a part of LEMON, a generic C++ optimization library.

 *

 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport

 * (Egervary Research Group on Combinatorial Optimization, EGRES).

 *

 * Permission to use, modify and distribute this software is granted

 * provided that this copyright notice appears in all copies. For

 * precise terms see the accompanying LICENSE file.

 *

 * This software is provided "AS IS" with no warranty of any kind,

 * express or implied, and with no claim as to its suitability for any

 * purpose.

 *

 */

#ifndef LEMON_CORE_H

#define LEMON_CORE_H

#include <vector>

#include <algorithm>

#include <lemon/config.h>

#include <lemon/bits/enable_if.h>

#include <lemon/bits/traits.h>

#include <lemon/assert.h>

/* -*- mode: C++; indent-tabs-mode: nil; -*-

 *

 * This file is a part of LEMON, a generic C++ optimization library.

 *

 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport

 * (Egervary Research Group on Combinatorial Optimization, EGRES).

 *

 * Permission to use, modify and distribute this software is granted

 * provided that this copyright notice appears in all copies. For

 * precise terms see the accompanying LICENSE file.

 *

 * This software is provided "AS IS" with no warranty of any kind,

 * express or implied, and with no claim as to its suitability for any

 * purpose.

 *

 */

#ifndef LEMON_DFS_H

#define LEMON_DFS_H

///\ingroup search

///\file

///\brief DFS algorithm.

#include <lemon/list_graph.h>

#include <lemon/bits/path_dump.h>

#include <lemon/core.h>

#include <lemon/error.h>

/* -*- mode: C++; indent-tabs-mode: nil; -*-

 *

 * This file is a part of LEMON, a generic C++ optimization library.

 *

 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport

 * (Egervary Research Group on Combinatorial Optimization, EGRES).

 *

 * Permission to use, modify and distribute this software is granted

 * provided that this copyright notice appears in all copies. For

 * precise terms see the accompanying LICENSE file.

 *

 * This software is provided "AS IS" with no warranty of any kind,

 * express or implied, and with no claim as to its suitability for any

 * purpose.

 *

 */

#ifndef LEMON_GRAPH_TO_EPS_H

#define LEMON_GRAPH_TO_EPS_H

#include<iostream>

#include<fstream>

#include<sstream>

#include<algorithm>

#include<vector>

#ifndef WIN32

#include<sys/time.h>

      virtual void process(std::istream& is, int& line_num) {

        _functor(is, line_num);

        char c;

        std::string line;

        while (is.get(c) && c != '@') {

          if (c == '\n') {

            ++line_num;

          } else if (!isWhiteSpace(c)) {

            getline(is, line);

            ++line_num;

          }

        }

        if (is) is.putback(c);

        else if (is.eof()) is.clear();

      }

    };

  }

  template <typename Digraph>

  class DigraphReader;

  template <typename Digraph>

                                       std::istream& is = std::cin);

  template <typename Digraph>

  DigraphReader<Digraph> digraphReader(Digraph& digraph, const std::string& fn);

  template <typename Digraph>

  DigraphReader<Digraph> digraphReader(Digraph& digraph, const char *fn);

  /// \ingroup lemon_io

  ///

  /// \brief \ref lgf-format "LGF" reader for directed graphs

  ///

  /// This utility reads an \ref lgf-format "LGF" file.

  ///

  /// The reading method does a batch processing. The user creates a

  /// reader object, then various reading rules can be added to the

  /// reader, and eventually the reading is executed with the \c run()

  /// member function. A map reading rule can be added to the reader

  /// with the \c nodeMap() or \c arcMap() members. An optional

  /// converter parameter can also be added as a standard functor

  /// converting from \c std::string to the value type of the map. If it

  /// is set, it will determine how the tokens in the file should be

  /// converted to the value type of the map. If the functor is not set,

  /// then a default conversion will be used. One map can be read into

  /// multiple map objects at the same time. The \c attribute(), \c

  /// node() and \c arc() functions are used to add attribute reading

        delete it->second;

      }

      for (typename ArcMaps::iterator it = _arc_maps.begin();

           it != _arc_maps.end(); ++it) {

        delete it->second;

      }

      for (typename Attributes::iterator it = _attributes.begin();

           it != _attributes.end(); ++it) {

        delete it->second;

      }

      if (local_is) {

        delete _is;

      }

    }

  private:

    template <typename DGR>

    friend DigraphReader<DGR> digraphReader(DGR& digraph, std::istream& is);

    template <typename DGR>

                                            const std::string& fn);

    template <typename DGR>

    friend DigraphReader<DGR> digraphReader(DGR& digraph, const char *fn);

    DigraphReader(DigraphReader& other)

      : _is(other._is), local_is(other.local_is), _digraph(other._digraph),

        _use_nodes(other._use_nodes), _use_arcs(other._use_arcs),

        _skip_nodes(other._skip_nodes), _skip_arcs(other._skip_arcs) {

      other._is = 0;

      other.local_is = false;

      _node_index.swap(other._node_index);

      _arc_index.swap(other._arc_index);

      _node_maps.swap(other._node_maps);

      _arc_maps.swap(other._arc_maps);

      _attributes.swap(other._attributes);

      _nodes_caption = other._nodes_caption;

      _arcs_caption = other._arcs_caption;

      _attributes_caption = other._attributes_caption;

    }

  /// \brief Return a \ref DigraphReader class

  ///

  /// This function just returns a \ref DigraphReader class.

  /// \relates DigraphReader

  template <typename Digraph>

  DigraphReader<Digraph> digraphReader(Digraph& digraph,

                                       const std::string& fn) {

    DigraphReader<Digraph> tmp(digraph, fn);

    return tmp;

  }

  /// \brief Return a \ref DigraphReader class

  ///

  /// This function just returns a \ref DigraphReader class.

  /// \relates DigraphReader

  template <typename Digraph>

  DigraphReader<Digraph> digraphReader(Digraph& digraph, const char* fn) {

    DigraphReader<Digraph> tmp(digraph, fn);

    return tmp;

  }

  template <typename Graph>

  class GraphReader;

  template <typename Graph>

                                 std::istream& is = std::cin);

  template <typename Graph>

  GraphReader<Graph> graphReader(Graph& graph, const std::string& fn);

  template <typename Graph>

  GraphReader<Graph> graphReader(Graph& graph, const char *fn);

  /// \ingroup lemon_io

  ///

  /// \brief \ref lgf-format "LGF" reader for undirected graphs

  ///

  /// This utility reads an \ref lgf-format "LGF" file.

  ///

  /// It can be used almost the same way as \c DigraphReader.

  /// The only difference is that this class can handle edges and

  /// edge maps as well as arcs and arc maps.

  ///

  /// The columns in the \c \@edges (or \c \@arcs) section are the

  /// edge maps. However, if there are two maps with the same name

  /// prefixed with \c '+' and \c '-', then these can be read into an

  /// arc map.  Similarly, an attribute can be read into an arc, if

  /// it's value is an edge label prefixed with \c '+' or \c '-'.

  template <typename _Graph>

  class GraphReader {

  public:

           it != _node_maps.end(); ++it) {

        delete it->second;

      }

      for (typename EdgeMaps::iterator it = _edge_maps.begin();

           it != _edge_maps.end(); ++it) {

        delete it->second;

      }

      for (typename Attributes::iterator it = _attributes.begin();

           it != _attributes.end(); ++it) {

        delete it->second;

      }

      if (local_is) {

        delete _is;

      }

    }

  private:

    template <typename GR>

    friend GraphReader<GR> graphReader(GR& graph, std::istream& is);

    template <typename GR>

    template <typename GR>

    friend GraphReader<GR> graphReader(GR& graph, const char *fn);

    GraphReader(GraphReader& other)

      : _is(other._is), local_is(other.local_is), _graph(other._graph),

        _use_nodes(other._use_nodes), _use_edges(other._use_edges),

        _skip_nodes(other._skip_nodes), _skip_edges(other._skip_edges) {

      other._is = 0;

      other.local_is = false;

      _node_index.swap(other._node_index);

      _edge_index.swap(other._edge_index);

      _node_maps.swap(other._node_maps);

      _edge_maps.swap(other._edge_maps);

      _attributes.swap(other._attributes);

      _nodes_caption = other._nodes_caption;

      _edges_caption = other._edges_caption;

      _attributes_caption = other._attributes_caption;

    }

/* -*- mode: C++; indent-tabs-mode: nil; -*-

 *

 * This file is a part of LEMON, a generic C++ optimization library.

 *

 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport

 * (Egervary Research Group on Combinatorial Optimization, EGRES).

 *

 * Permission to use, modify and distribute this software is granted

 * provided that this copyright notice appears in all copies. For

 * precise terms see the accompanying LICENSE file.

 *

 * This software is provided "AS IS" with no warranty of any kind,

 * express or implied, and with no claim as to its suitability for any

 * purpose.

 *

 */

///\ingroup lemon_io

///\file

///\brief \ref lgf-format "LEMON Graph Format" writer.

#ifndef LEMON_LGF_WRITER_H

#define LEMON_LGF_WRITER_H

#include <iostream>

#include <fstream>

#include <sstream>

    ~DigraphWriter() {

      for (typename NodeMaps::iterator it = _node_maps.begin();

           it != _node_maps.end(); ++it) {

        delete it->second;

      }

      for (typename ArcMaps::iterator it = _arc_maps.begin();

           it != _arc_maps.end(); ++it) {

        delete it->second;

      }

      for (typename Attributes::iterator it = _attributes.begin();

           it != _attributes.end(); ++it) {

        delete it->second;

      }

      if (local_os) {

        delete _os;

      }

    }

  private:

    template <typename DGR>

                                            std::ostream& os);

    template <typename DGR>

    friend DigraphWriter<DGR> digraphWriter(const DGR& digraph,

                                            const std::string& fn);

    template <typename DGR>

    friend DigraphWriter<DGR> digraphWriter(const DGR& digraph,

                                            const char *fn);

    DigraphWriter(DigraphWriter& other)

      : _os(other._os), local_os(other.local_os), _digraph(other._digraph),

        _skip_nodes(other._skip_nodes), _skip_arcs(other._skip_arcs) {

      other._os = 0;

      other.local_os = false;

      _node_index.swap(other._node_index);

      _arc_index.swap(other._arc_index);

      _node_maps.swap(other._node_maps);

      _arc_maps.swap(other._arc_maps);

      _attributes.swap(other._attributes);

      _nodes_caption = other._nodes_caption;

      _arcs_caption = other._arcs_caption;

        delete it->second;

      }

      for (typename Attributes::iterator it = _attributes.begin();

           it != _attributes.end(); ++it) {

        delete it->second;

      }

      if (local_os) {

        delete _os;

      }

    }

  private:

    template <typename GR>

    friend GraphWriter<GR> graphWriter(const GR& graph,

                                       std::ostream& os);

    template <typename GR>

    friend GraphWriter<GR> graphWriter(const GR& graph,

                                       const std::string& fn);

    template <typename GR>

    friend GraphWriter<GR> graphWriter(const GR& graph,

                                       const char *fn);

    GraphWriter(GraphWriter& other)

      : _os(other._os), local_os(other.local_os), _graph(other._graph),

        _skip_nodes(other._skip_nodes), _skip_edges(other._skip_edges) {

      other._os = 0;

      other.local_os = false;

      _node_index.swap(other._node_index);

      _edge_index.swap(other._edge_index);

      _node_maps.swap(other._node_maps);

      _edge_maps.swap(other._edge_maps);

      _attributes.swap(other._attributes);

      _nodes_caption = other._nodes_caption;

      _edges_caption = other._edges_caption;

      _attributes_caption = other._attributes_caption;

    }

    GraphWriter& operator=(const GraphWriter&);

  public:

    /// \name Writing rules

/* -*- mode: C++; indent-tabs-mode: nil; -*-

 *

 * This file is a part of LEMON, a generic C++ optimization library.

 *

 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport

 * (Egervary Research Group on Combinatorial Optimization, EGRES).

 *

 * Permission to use, modify and distribute this software is granted

 * provided that this copyright notice appears in all copies. For

 * precise terms see the accompanying LICENSE file.

 *

 * This software is provided "AS IS" with no warranty of any kind,

 * express or implied, and with no claim as to its suitability for any

 * purpose.

 *

 */

#ifndef LEMON_LIST_GRAPH_H

#define LEMON_LIST_GRAPH_H

///\ingroup graphs

///\file

///\brief ListDigraph, ListGraph classes.

#include <lemon/core.h>

#include <lemon/error.h>

#include <lemon/bits/graph_extender.h>

    class Edge {

      friend class ListGraphBase;

    protected:

      int id;

      explicit Edge(int pid) { id = pid;}

    public:

      Edge() {}

      Edge (Invalid) { id = -1; }

      bool operator==(const Edge& edge) const {return id == edge.id;}

      bool operator!=(const Edge& edge) const {return id != edge.id;}

      bool operator<(const Edge& edge) const {return id < edge.id;}

    };

    class Arc {

      friend class ListGraphBase;

    protected:

      int id;

      explicit Arc(int pid) { id = pid;}

    public:

      }

      Arc() {}

      Arc (Invalid) { id = -1; }

      bool operator==(const Arc& arc) const {return id == arc.id;}

      bool operator!=(const Arc& arc) const {return id != arc.id;}

      bool operator<(const Arc& arc) const {return id < arc.id;}

    };

    ListGraphBase()

      : nodes(), first_node(-1),

        first_free_node(-1), arcs(), first_free_arc(-1) {}

    int maxNodeId() const { return nodes.size()-1; }

    int maxEdgeId() const { return arcs.size() / 2 - 1; }

    int maxArcId() const { return arcs.size()-1; }

    Node source(Arc e) const { return Node(arcs[e.id ^ 1].target); }

    Node target(Arc e) const { return Node(arcs[e.id].target); }

    Node u(Edge e) const { return Node(arcs[2 * e.id].target); }

/* -*- mode: C++; indent-tabs-mode: nil; -*-

 *

 * This file is a part of LEMON, a generic C++ optimization library.

 *

 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport

 * (Egervary Research Group on Combinatorial Optimization, EGRES).

 *

 * Permission to use, modify and distribute this software is granted

 * provided that this copyright notice appears in all copies. For

 * precise terms see the accompanying LICENSE file.

 *

 * This software is provided "AS IS" with no warranty of any kind,

 * express or implied, and with no claim as to its suitability for any

 * purpose.

 *

 */

///\ingroup paths

///\file

///\brief Classes for representing paths in digraphs.

///

#ifndef LEMON_PATH_H

#define LEMON_PATH_H

#include <vector>

#include <algorithm>

        to.clear();

        to.build(from);

      }

    };

    template <typename From, typename To,

              bool buildEnable = BuildTagIndicator<To>::value>

    struct PathCopySelectorBackward {

      static void copy(const From& from, To& to) {

        to.clear();

        for (typename From::RevArcIt it(from); it != INVALID; ++it) {

          to.addFront(it);

        }

      }

    };

    template <typename From, typename To>

    struct PathCopySelectorBackward<From, To, true> {

      static void copy(const From& from, To& to) {

        to.clear();

        to.buildRev(from);

      }

    };

    template <typename From, typename To,

              bool revEnable = RevPathTagIndicator<From>::value>

    struct PathCopySelector {

      static void copy(const From& from, To& to) {

        PathCopySelectorForward<From, To>::copy(from, to);

    };

    template <typename From, typename To>

    struct PathCopySelector<From, To, true> {

      static void copy(const From& from, To& to) {

        PathCopySelectorBackward<From, To>::copy(from, to);

    };

  }

  /// \brief Make a copy of a path.

  ///

  /// This function makes a copy of a path.

  template <typename From, typename To>

  void pathCopy(const From& from, To& to) {

    checkConcept<concepts::PathDumper<typename From::Digraph>, From>();

    _path_bits::PathCopySelector<From, To>::copy(from, to);

  }

  /// \brief Deprecated version of \ref pathCopy().

  ///

  /// Deprecated version of \ref pathCopy() (only for reverse compatibility).

  template <typename To, typename From>

  void copyPath(To& to, const From& from) {

    pathCopy(from, to);

  }

  /// \brief Check the consistency of a path.

  ///

/* -*- mode: C++; indent-tabs-mode: nil; -*-

 *

 * This file is a part of LEMON, a generic C++ optimization library.

 *

 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport

 * (Egervary Research Group on Combinatorial Optimization, EGRES).

 *

 * Permission to use, modify and distribute this software is granted

 * provided that this copyright notice appears in all copies. For

 * precise terms see the accompanying LICENSE file.

 *

 * This software is provided "AS IS" with no warranty of any kind,

 * express or implied, and with no claim as to its suitability for any

 * purpose.

 *

 */

/*

 * This file contains the reimplemented version of the Mersenne Twister

 * Generator of Matsumoto and Nishimura.

 *

 * See the appropriate copyright notice below.

 *

 * Copyright (C) 1997 - 2002, Makoto Matsumoto and Takuji Nishimura,

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

/* -*- mode: C++; indent-tabs-mode: nil; -*-

 *

 * This file is a part of LEMON, a generic C++ optimization library.

 *

 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport

 * (Egervary Research Group on Combinatorial Optimization, EGRES).

 *

 * Permission to use, modify and distribute this software is granted

 * provided that this copyright notice appears in all copies. For

 * precise terms see the accompanying LICENSE file.

 *

 * This software is provided "AS IS" with no warranty of any kind,

 * express or implied, and with no claim as to its suitability for any

 * purpose.

 *

 */

#ifndef LEMON_SMART_GRAPH_H

#define LEMON_SMART_GRAPH_H

///\ingroup graphs

///\file

///\brief SmartDigraph and SmartGraph classes.

#include <vector>

#include <lemon/core.h>

#include <lemon/error.h>

    class Edge {

      friend class SmartGraphBase;