// -*- c++ -*-

#ifndef LEMON_FOR_EACH_MACROS_H

#define LEMON_FOR_EACH_MACROS_H

// /// \ingroup gwrappers

/// \file

/// \brief Iteration macros.

///

/// This file contains several macros which make easier writting 

/// for cycles in LEMON using LEMON iterators.

///

/// \author Marton Makai

namespace lemon {

  /// This macro provides a comfortable interface for iterating with LEMON 

  /// iterators.

  /// \code

  /// Graph g;

  /// ...

  /// Graph::NodeIt n;

  /// h_for_glob(n, g) {

  /// ...

  /// }

  /// Graph::EdgeIt e;

  /// h_for_glob(e, g) {

  /// ...

  /// }

  /// \endcode

  /// Note that the iterated variables \c n and \c e are global ones. 

#define h_for_glob(e, g) for((g).first((e)); (g).valid((e)); (g).next((e)))

/// \deprecated

#define FOR_EACH_GLOB(e, g) for((g).first((e)); (g).valid((e)); (g).next((e)))

  /// This macro provides a comfortable interface for iterating with LEMON 

  /// iterators.

  /// \code

  /// Graph g;

  /// ...

  /// Graph::Node v;

  /// Graph::OutEdgeIt e;

  /// h_for_inc_glob(e, g, v) {

  /// ...

  /// }

  /// typedef BipartiteGraph<Graph> BGraph;

  /// BGraph h;

  /// ...

  /// BGraph::ClassNodeIt n;

  /// h_for_inc_glob(BGraph::ClassNodeIt, n, h, h.S_CLASS) {

  /// ...

  /// }

  /// \endcode

  /// Note that iterated variables \c e and \c n are global ones. 

#define h_for_inc_glob(e, g, v) for((g).first((e), (v)); (g).valid((e)); (g).next((e)))

/// \deprecated

#define FOR_EACH_INC_GLOB(e, g, v) for((g).first((e), (v)); (g).valid((e)); (g).next((e)))

/// \deprecated

//#define FOR_EACH_EDGE_GLOB(e, g) for((g).first((e)); (g).valid((e)); (g).next((e)))

/// \deprecated

//#define FOR_EACH_NODE_GLOB(e, g) for((g).first((e)); (g).valid((e)); (g).next((e)))

/// \deprecated

//#define FOR_EACH_INEDGE_GLOB(e, g, v) for((g).first((e), (v)); (g).valid((e)); (g).next((e)))

/// \deprecated

//#define FOR_EACH_OUTEDGE_GLOB(e, g, v) for((g).first((e), (v)); (g).valid((e)); (g).next((e)))

//   template<typename It, typename Graph> 

//   It loopFirst(const Graph& g) const {

//     It e; g.first(e); return e; 

//   }

//   template<typename It, typename Graph> 

//   It loopFirst(const Graph& g, const Node& v) const {

//     It e; g.first(e, v); return e; 

//   }

//   template<typename Graph> 

//   typename Graph::NodeIt loopFirstNode(const Graph& g) const {

//     typename Graph::NodeIt e; g.first(e); return e; 

//   }

//   template<typename Graph> 

//   typename Graph::EdgeIt loopFirstEdge(const Graph& g) const {

//     typename Graph::EdgeIt e; g.first(e); return e; 

//   }

//   template<typename Graph> 

//   typename Graph::OutEdgeIt 

//   loopFirstOutEdge(const Graph& g, const Node& n) const {

//     typename Graph::OutEdgeIt e; g.first(e, n); return e; 

//   }

//   template<typename Graph> 

//   typename Graph::InEdgeIt 

//   loopFirstIn Edge(const Graph& g, const Node& n) const {

//     typename Graph::InEdgeIt e; g.first(e, n); return e; 

//   }

//FIXME ezt hogy a gorcsbe birja levezetni. Csak ugy leveszi a const-ot??

  template<typename It, typename Graph> 

  It loopFirst(const It&, const Graph& g) {

    It e; g.first(e); return e; 

  }

  template<typename It, typename Graph, typename Node> 

  It loopFirst(const It&, const Graph& g, const Node& v) {

    It e; g.first(e, v); return e; 

  }

//   template<typename Graph> 

//   typename Graph::NodeIt loopFirstNode(const Graph& g) const {

//     typename Graph::NodeIt e; g.first(e); return e; 

//   }

//   template<typename Graph> 

//   typename Graph::EdgeIt loopFirstEdge(const Graph& g) const {

//     typename Graph::EdgeIt e; g.first(e); return e; 

//   }

//   template<typename Graph> 

//   typename Graph::OutEdgeIt 

//   loopFirstOutEdge(const Graph& g, const Node& n) const {

//     typename Graph::OutEdgeIt e; g.first(e, n); return e; 

//   }

//   template<typename Graph> 

//   typename Graph::InEdgeIt 

//   loopFirstIn Edge(const Graph& g, const Node& n) const {

//     typename Graph::InEdgeIt e; g.first(e, n); return e; 

//   }

  /// This macro provides a comfortable interface for iterating with LEMON 

  /// iterators.

  /// \code

  /// Graph g;

  /// ...

  /// h_for(Graph::NodeIt, n, g) {

  /// ...

  /// }

  /// h_for(Graph::EdgeIt, e, g) {

  /// ...

  /// }

  /// \endcode

  /// Note that the iterated variables \c n and \c e are local ones. 

#define h_for(Ittype, e, g) for(Ittype e=loopFirst(Ittype(), (g)); (g).valid(e); (g).next(e))

/// \deprecated

#define FOR_EACH_LOC(Ittype, e, g) for(Ittype e=loopFirst(Ittype(), (g)); (g).valid(e); (g).next(e))

  /// This macro provides a comfortable interface for iterating with LEMON 

  /// iterators.

  /// \code

  /// Graph g;

  /// ...

  /// Graph::Node v;

  /// h_for_inc(Graph::OutEdgeIt, e, g, v) {

  /// ...

  /// }

  /// typedef BipartiteGraph<Graph> BGraph;

  /// BGraph h;

  /// ...

  /// h_for_inc(BGraph::ClassNodeIt, n, h, h.S_CLASS) {

  /// ...

  /// }

  /// \endcode

  /// Note that the iterated variables \c e and \c n are local ones. 

#define h_for_inc(Ittype, e, g, v) for(Ittype e=loopFirst(Ittype(), (g), (v)); (g).valid(e); (g).next(e))

/// \deprecated

#define FOR_EACH_INC_LOC(Ittype, e, g, v) for(Ittype e=loopFirst(Ittype(), (g), (v)); (g).valid(e); (g).next(e))

// #define FOR_EACH_EDGE_LOC(e, g) ezt nem tom hogy kell for((g).first((e)); (g).valid((e)); (g).next((e)))

// #define FOR_EACH_NODE_LOC(e, g) for((g).first((e)); (g).valid((e)); (g).next((e)))

// #define FOR_EACH_INEDGE_LOC(e, g, v) for((g).first((e), (v)); (g).valid((e)); (g).next((e)))

// #define FOR_EACH_OUTEDGE_LOC(e, g, v) for((g).first((e), (v)); (g).valid((e)); (g).next((e)))

} //namespace lemon

#endif //LEMON_FOR_EACH_MACROS_H