branch.hh

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/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
 *  Main authors:
 *     Christian Schulte <schulte@gecode.org>
 *
 *  Copyright:
 *     Christian Schulte, 2002
 *
 *  Last modified:
 *     $Date: 2008-07-11 10:10:11 +0200 (Fri, 11 Jul 2008) $ by $Author: tack $
 *     $Revision: 7310 $
 *
 *  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_INT_BRANCH_HH__
#define __GECODE_INT_BRANCH_HH__

#include "gecode/int.hh"

namespace Gecode { namespace Int { namespace Branch {

  /*
   * Value selection classes
   *
   */

  template<class View>
  class ValMin {
  public:
    int val(const Space* home, View x) const;
    ModEvent tell(Space* home, unsigned int a, View x, int n);
    static Support::Symbol type(void);
    void branchingSpec(const Space* home,
                       Reflection::VarMap& m, Reflection::BranchingSpec& bs,
                       int alt, View x, int n) const;
  };

  template<class View>
  class ValMed {
  public:
    int val(const Space* home, View x) const;
    ModEvent tell(Space* home, unsigned int a, View x, int n);
    static Support::Symbol type(void);
    void branchingSpec(const Space* home,
                       Reflection::VarMap& m, Reflection::BranchingSpec& bs,
                       int alt, View x, int n) const;
  };

  template<class View>
  class ValMax {
  public:
    int val(const Space* home, View x) const;
    ModEvent tell(Space* home, unsigned int a, View x, int n);
    static Support::Symbol type(void);
    void branchingSpec(const Space* home,
                       Reflection::VarMap& m, Reflection::BranchingSpec& bs,
                       int alt, View x, int n) const;
  };

  template<class View>
  class ValSplitMin {
  public:
    int val(const Space* home, View x) const;
    ModEvent tell(Space* home, unsigned int a, View x, int n);
    static Support::Symbol type(void);
    void branchingSpec(const Space* home,
                       Reflection::VarMap& m, Reflection::BranchingSpec& bs,
                       int alt, View x, int n) const;
  };

  template<class View>
  class ValSplitMax {
  public:
    int val(const Space* home, View x) const;
    ModEvent tell(Space* home, unsigned int a, View x, int n);
    static Support::Symbol type(void);
    void branchingSpec(const Space* home,
                       Reflection::VarMap& m, Reflection::BranchingSpec& bs,
                       int alt, View x, int n) const;
  };

  template<class View, class SelView>
  static void
  create(Space* home, ViewArray<View>&, IntValBranch);

  class NoValue {
  public:
    static Support::Symbol type(void);
  };

  template<class View>
  class ValZeroOne {
  public:
    NoValue val(const Space* home, View x) const;
    ModEvent tell(Space* home, unsigned int a, View x, NoValue n);
    static Support::Symbol type(void);
    void branchingSpec(const Space* home,
                       Reflection::VarMap& m, Reflection::BranchingSpec& bs,
                       int alt, View x, NoValue n) const;
  };

  template<class View>
  class ValOneZero {
  public:
    NoValue val(const Space* home, View x) const;
    ModEvent tell(Space* home, unsigned int a, View x, NoValue n);
    static Support::Symbol type(void);
    void branchingSpec(const Space* home,
                       Reflection::VarMap& m, Reflection::BranchingSpec& bs,
                       int alt, View x, NoValue n) const;
  };


  /*
   * Variable selection classes
   *
   */

  template<class View>
  class ByNone {
  public:
    ViewSelStatus init(const Space* home, View x);
    ViewSelStatus select(const Space* home, View x);
    static Support::Symbol type(void);
  };

  template<class View>
  class ByMinMin {
  protected:
    int min;
  public:
    ViewSelStatus init(const Space* home, View x);
    ViewSelStatus select(const Space* home, View x);
    static Support::Symbol type(void);
  };

  template<class View>
  class ByMinMax {
  protected:
    int min;
  public:
    ViewSelStatus init(const Space* home, View x);
    ViewSelStatus select(const Space* home, View x);
    static Support::Symbol type(void);
  };

  template<class View>
  class ByMaxMin {
  protected:
    int max;
  public:
    ViewSelStatus init(const Space* home, View x);
    ViewSelStatus select(const Space* home, View x);
    static Support::Symbol type(void);
  };

  template<class View>
  class ByMaxMax {
  protected:
    int max;
  public:
    ViewSelStatus init(const Space* home, View x);
    ViewSelStatus select(const Space* home, View x);
    static Support::Symbol type(void);
  };

  template<class View>
  class BySizeMin {
  protected:
    unsigned int size;
  public:
    ViewSelStatus init(const Space* home, View x);
    ViewSelStatus select(const Space* home, View x);
    static Support::Symbol type(void);
  };

  template<class View>
  class BySizeMax {
  protected:
    unsigned int size;
  public:
    ViewSelStatus init(const Space* home, View x);
    ViewSelStatus select(const Space* home, View x);
    static Support::Symbol type(void);
  };

  template<class View>
  class ByDegreeMin {
  protected:
    unsigned int degree;
    unsigned int size;
  public:
    ViewSelStatus init(const Space* home, View x);
    ViewSelStatus select(const Space* home, View x);
    static Support::Symbol type(void);
  };

  template<class View>
  class ByDegreeMax {
  protected:
    unsigned int degree;
    unsigned int size;
  public:
    ViewSelStatus init(const Space* home, View x);
    ViewSelStatus select(const Space* home, View x);
    static Support::Symbol type(void);
  };

  template<class View>
  class ByDegreeMinNoTies {
  protected:
    unsigned int degree;
  public:
    ViewSelStatus init(const Space* home, View x);
    ViewSelStatus select(const Space* home, View x);
    static Support::Symbol type(void);
  };

  template<class View>
  class ByDegreeMaxNoTies {
  protected:
    unsigned int degree;
  public:
    ViewSelStatus init(const Space* home, View x);
    ViewSelStatus select(const Space* home, View x);
    static Support::Symbol type(void);
  };

  template<class View>
  class BySizeDegreeMin {
  protected:
    double sizedegree;
  public:
    ViewSelStatus init(const Space* home, View x);
    ViewSelStatus select(const Space* home, View x);
    static Support::Symbol type(void);
  };

  template<class View>
  class BySizeDegreeMax {
  protected:
    double sizedegree;
  public:
    ViewSelStatus init(const Space* home, View x);
    ViewSelStatus select(const Space* home, View x);
    static Support::Symbol type(void);
  };

  template<class View>
  class ByRegretMinMin {
  protected:
    unsigned int regret;
  public:
    ViewSelStatus init(const Space* home, View x);
    ViewSelStatus select(const Space* home, View x);
    static Support::Symbol type(void);
  };

  template<class View>
  class ByRegretMinMax {
  protected:
    unsigned int regret;
  public:
    ViewSelStatus init(const Space* home, View x);
    ViewSelStatus select(const Space* home, View x);
    static Support::Symbol type(void);
  };

  template<class View>
  class ByRegretMaxMin {
  protected:
    unsigned int regret;
  public:
    ViewSelStatus init(const Space* home, View x);
    ViewSelStatus select(const Space* home, View x);
    static Support::Symbol type(void);
  };

  template<class View>
  class ByRegretMaxMax {
  protected:
    unsigned int regret;
  public:
    ViewSelStatus init(const Space* home, View x);
    ViewSelStatus select(const Space* home, View x);
    static Support::Symbol type(void);
  };

  template <template <class,class,class,class> class B>
  void
  createBranch(Space* home, const IntVarArgs& x,
               IntVarBranch vars, IntValBranch vals);

  template <template <class,class,class,class> class B>
  void
  createBranch(Space* home, const BoolVarArgs& x, 
               IntVarBranch vars, IntValBranch vals);

}}}

#include "gecode/int/branch/select-val.icc"
#include "gecode/int/branch/select-view.icc"
#include "gecode/int/branch/create-branch.icc"

#endif

// STATISTICS: int-branch