lemon/bits/default_map.h
author Peter Kovacs <kpeter@inf.elte.hu>
Mon, 30 Jan 2012 20:21:45 +0100
changeset 984 fcb6ad1e67d0
parent 627 20dac2104519
child 1092 dceba191c00d
permissions -rw-r--r--
Improve the Altering List pivot rule for NetworkSimplex (#435)
Much less candidate arcs are preserved from an iteration to the
next one and partial_sort() is used instead of heap operations.
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/* -*- mode: C++; indent-tabs-mode: nil; -*-
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 *
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 * This file is a part of LEMON, a generic C++ optimization library.
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 *
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 * Copyright (C) 2003-2010
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 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
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 * (Egervary Research Group on Combinatorial Optimization, EGRES).
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 *
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 * Permission to use, modify and distribute this software is granted
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 * provided that this copyright notice appears in all copies. For
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 * precise terms see the accompanying LICENSE file.
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 *
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 * This software is provided "AS IS" with no warranty of any kind,
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 * express or implied, and with no claim as to its suitability for any
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 * purpose.
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 *
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 */
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#ifndef LEMON_BITS_DEFAULT_MAP_H
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#define LEMON_BITS_DEFAULT_MAP_H
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#include <lemon/config.h>
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#include <lemon/bits/array_map.h>
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#include <lemon/bits/vector_map.h>
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//#include <lemon/bits/debug_map.h>
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//\ingroup graphbits
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//\file
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//\brief Graph maps that construct and destruct their elements dynamically.
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namespace lemon {
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  //#ifndef LEMON_USE_DEBUG_MAP
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  template <typename _Graph, typename _Item, typename _Value>
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  struct DefaultMapSelector {
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    typedef ArrayMap<_Graph, _Item, _Value> Map;
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  };
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  // bool
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  template <typename _Graph, typename _Item>
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  struct DefaultMapSelector<_Graph, _Item, bool> {
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    typedef VectorMap<_Graph, _Item, bool> Map;
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  };
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  // char
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  template <typename _Graph, typename _Item>
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  struct DefaultMapSelector<_Graph, _Item, char> {
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    typedef VectorMap<_Graph, _Item, char> Map;
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  };
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  template <typename _Graph, typename _Item>
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  struct DefaultMapSelector<_Graph, _Item, signed char> {
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    typedef VectorMap<_Graph, _Item, signed char> Map;
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  };
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  template <typename _Graph, typename _Item>
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  struct DefaultMapSelector<_Graph, _Item, unsigned char> {
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    typedef VectorMap<_Graph, _Item, unsigned char> Map;
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  };
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  // int
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  template <typename _Graph, typename _Item>
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  struct DefaultMapSelector<_Graph, _Item, signed int> {
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    typedef VectorMap<_Graph, _Item, signed int> Map;
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  };
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  template <typename _Graph, typename _Item>
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  struct DefaultMapSelector<_Graph, _Item, unsigned int> {
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    typedef VectorMap<_Graph, _Item, unsigned int> Map;
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  };
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  // short
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  template <typename _Graph, typename _Item>
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  struct DefaultMapSelector<_Graph, _Item, signed short> {
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    typedef VectorMap<_Graph, _Item, signed short> Map;
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  };
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  template <typename _Graph, typename _Item>
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  struct DefaultMapSelector<_Graph, _Item, unsigned short> {
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    typedef VectorMap<_Graph, _Item, unsigned short> Map;
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  };
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  // long
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  template <typename _Graph, typename _Item>
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  struct DefaultMapSelector<_Graph, _Item, signed long> {
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    typedef VectorMap<_Graph, _Item, signed long> Map;
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  };
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  template <typename _Graph, typename _Item>
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  struct DefaultMapSelector<_Graph, _Item, unsigned long> {
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    typedef VectorMap<_Graph, _Item, unsigned long> Map;
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  };
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#if defined LEMON_HAVE_LONG_LONG
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  // long long
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  template <typename _Graph, typename _Item>
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  struct DefaultMapSelector<_Graph, _Item, signed long long> {
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    typedef VectorMap<_Graph, _Item, signed long long> Map;
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  };
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  template <typename _Graph, typename _Item>
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  struct DefaultMapSelector<_Graph, _Item, unsigned long long> {
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    typedef VectorMap<_Graph, _Item, unsigned long long> Map;
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  };
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#endif
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  // float
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  template <typename _Graph, typename _Item>
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  struct DefaultMapSelector<_Graph, _Item, float> {
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    typedef VectorMap<_Graph, _Item, float> Map;
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  };
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  // double
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  template <typename _Graph, typename _Item>
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  struct DefaultMapSelector<_Graph, _Item, double> {
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    typedef VectorMap<_Graph, _Item,  double> Map;
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  };
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  // long double
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  template <typename _Graph, typename _Item>
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  struct DefaultMapSelector<_Graph, _Item, long double> {
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    typedef VectorMap<_Graph, _Item, long double> Map;
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  };
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  // pointer
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  template <typename _Graph, typename _Item, typename _Ptr>
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  struct DefaultMapSelector<_Graph, _Item, _Ptr*> {
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    typedef VectorMap<_Graph, _Item, _Ptr*> Map;
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  };
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// #else
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//   template <typename _Graph, typename _Item, typename _Value>
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//   struct DefaultMapSelector {
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//     typedef DebugMap<_Graph, _Item, _Value> Map;
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//   };
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// #endif
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  // DefaultMap class
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  template <typename _Graph, typename _Item, typename _Value>
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  class DefaultMap
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    : public DefaultMapSelector<_Graph, _Item, _Value>::Map {
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    typedef typename DefaultMapSelector<_Graph, _Item, _Value>::Map Parent;
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  public:
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    typedef DefaultMap<_Graph, _Item, _Value> Map;
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    typedef typename Parent::GraphType GraphType;
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    typedef typename Parent::Value Value;
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    explicit DefaultMap(const GraphType& graph) : Parent(graph) {}
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    DefaultMap(const GraphType& graph, const Value& value)
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      : Parent(graph, value) {}
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    DefaultMap& operator=(const DefaultMap& cmap) {
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      return operator=<DefaultMap>(cmap);
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    }
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    template <typename CMap>
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    DefaultMap& operator=(const CMap& cmap) {
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      Parent::operator=(cmap);
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      return *this;
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    }
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  };
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}
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#endif