branch.hh

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/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
 *  Main authors:
 *     Guido Tack <tack@gecode.org>
 *     Christian Schulte <schulte@gecode.org>
 *
 *  Contributing authors:
 *     Gabor Szokoli <szokoli@gecode.org>
 *
 *  Copyright:
 *     Guido Tack, 2004
 *     Christian Schulte, 2004
 *     Gabor Szokoli, 2004
 *
 *  Last modified:
 *     $Date: 2011-05-11 12:44:17 +0200 (Wed, 11 May 2011) $ by $Author: tack $
 *     $Revision: 12001 $
 *
 *  This file is part of Gecode, the generic constraint
 *  development environment:
 *     http://www.gecode.org
 *
 *  Permission is hereby granted, free of charge, to any person obtaining
 *  a copy of this software and associated documentation files (the
 *  "Software"), to deal in the Software without restriction, including
 *  without limitation the rights to use, copy, modify, merge, publish,
 *  distribute, sublicense, and/or sell copies of the Software, and to
 *  permit persons to whom the Software is furnished to do so, subject to
 *  the following conditions:
 *
 *  The above copyright notice and this permission notice shall be
 *  included in all copies or substantial portions of the Software.
 *
 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 *  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 *  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 *  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 *  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 */

#ifndef __GECODE_SET_BRANCH_HH__
#define __GECODE_SET_BRANCH_HH__

#include <gecode/set.hh>

namespace Gecode { namespace Set { namespace Branch {

  /*
   * Value selection classes
   *
   */


  template<bool inc>
  class ValMin : public ValSelBase<SetView,int> {
  public:
    ValMin(void);
    ValMin(Space& home, const ValBranchOptions& vbo);
    int val(Space& home, SetView x) const;
    ModEvent tell(Space& home, unsigned int a, SetView x, int v);
  };

  template<bool inc>
  class ValMed : public ValSelBase<SetView,int> {
  public:
    ValMed(void);
    ValMed(Space& home, const ValBranchOptions& vbo);
    int val(Space& home, SetView x) const;
    ModEvent tell(Space& home, unsigned int a, SetView x, int v);
  };

  template<bool inc>
  class ValMax : public ValSelBase<SetView,int> {
  public:
    ValMax(void);
    ValMax(Space& home, const ValBranchOptions& vbo);
    int val(Space& home, SetView x) const;
    ModEvent tell(Space& home, unsigned int a, SetView x, int v);
  };

  template<bool inc>
  class ValRnd {
  protected:
    ArchivedRandomGenerator r;
  public:
    typedef SetView View;
    typedef int Val;
    typedef ArchivedRandomGenerator Choice;
    static const unsigned int alternatives = 2;
    ValRnd(void);
    ValRnd(Space& home, const ValBranchOptions& vbo);
    int val(Space& home, SetView x);
    ModEvent tell(Space& home, unsigned int a, SetView x, int n);
    Choice choice(Space& home);
    Choice choice(const Space& home, Archive& e);
    void commit(Space& home, const Choice& c, unsigned a);
    void update(Space& home, bool share, ValRnd& vs);
    void dispose(Space& home);
  };

  template<bool inc>
  class AssignValMin : public ValMin<inc> {
  public:
    static const unsigned int alternatives = 1;
    AssignValMin(void);
    AssignValMin(Space& home, const ValBranchOptions& vbo);
  };

  template<bool inc>
  class AssignValMed : public ValMed<inc> {
  public:
    static const unsigned int alternatives = 1;
    AssignValMed(void);
    AssignValMed(Space& home, const ValBranchOptions& vbo);
  };

  template<bool inc>
  class AssignValMax : public ValMax<inc> {
  public:
    static const unsigned int alternatives = 1;
    AssignValMax(void);
    AssignValMax(Space& home, const ValBranchOptions& vbo);
  };

  template<bool inc>
  class AssignValRnd : public ValRnd<inc> {
  public:
    static const unsigned int alternatives = 1;
    AssignValRnd(void);
    AssignValRnd(Space& home, const ValBranchOptions& vbo);
  };

  /*
   * View selection classes
   *
   */

  class ByMinMin : public ViewSelBase<SetView> {
  private:
    int min;
  public:
    ByMinMin(void);
    ByMinMin(Space& home, const VarBranchOptions& vbo);
    ViewSelStatus init(Space& home, SetView x);
    ViewSelStatus select(Space& home, SetView x);
  };

  class ByMinMax : public ViewSelBase<SetView> {
  private:
    int min;
  public:
    ByMinMax(void);
    ByMinMax(Space& home, const VarBranchOptions& vbo);
    ViewSelStatus init(Space& home, SetView x);
    ViewSelStatus select(Space& home, SetView x);
  };

  class ByMaxMin : public ViewSelBase<SetView> {
  private:
    int max;
  public:
    ByMaxMin(void);
    ByMaxMin(Space& home, const VarBranchOptions& vbo);
    ViewSelStatus init(Space& home, SetView x);
    ViewSelStatus select(Space& home, SetView x);
  };

  class ByMaxMax : public ViewSelBase<SetView> {
  private:
    int max;
  public:
    ByMaxMax(void);
    ByMaxMax(Space& home, const VarBranchOptions& vbo);
    ViewSelStatus init(Space& home, SetView x);
    ViewSelStatus select(Space& home, SetView x);
  };

  class BySizeMin : public ViewSelBase<SetView> {
  private:
    unsigned int size;
  public:
    BySizeMin(void);
    BySizeMin(Space& home, const VarBranchOptions& vbo);
    ViewSelStatus init(Space& home, SetView x);
    ViewSelStatus select(Space& home, SetView x);
  };

  class BySizeMax : public ViewSelBase<SetView> {
  private:
    unsigned int size;
  public:
    BySizeMax(void);
    BySizeMax(Space& home, const VarBranchOptions& vbo);
    ViewSelStatus init(Space& home, SetView x);
    ViewSelStatus select(Space& home, SetView x);
  };

  class BySizeDegreeMin : public ViewSelBase<SetView> {
  protected:
    double sizedegree;
  public:
    BySizeDegreeMin(void);
    BySizeDegreeMin(Space& home, const VarBranchOptions& vbo);
    ViewSelStatus init(Space& home, SetView x);
    ViewSelStatus select(Space& home, SetView x);
  };

  class BySizeDegreeMax : public ViewSelBase<SetView> {
  protected:
    double sizedegree;
  public:
    BySizeDegreeMax(void);
    BySizeDegreeMax(Space& home, const VarBranchOptions& vbo);
    ViewSelStatus init(Space& home, SetView x);
    ViewSelStatus select(Space& home, SetView x);
  };

  class BySizeAfcMin : public ViewSelBase<SetView> {
  protected:
    double sizeafc;
  public:
    BySizeAfcMin(void);
    BySizeAfcMin(Space& home, const VarBranchOptions& vbo);
    ViewSelStatus init(Space& home, SetView x);
    ViewSelStatus select(Space& home, SetView x);
  };

  class BySizeAfcMax : public ViewSelBase<SetView> {
  protected:
    double sizeafc;
  public:
    BySizeAfcMax(void);
    BySizeAfcMax(Space& home, const VarBranchOptions& vbo);
    ViewSelStatus init(Space& home, SetView x);
    ViewSelStatus select(Space& home, SetView x);
  };

}}}

#include <gecode/set/branch/select-val.hpp>
#include <gecode/set/branch/select-view.hpp>
#include <gecode/set/branch/post-val.hpp>

#endif
// STATISTICS: set-branch