val.hpp

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/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
 *  Main authors:
 *     Christian Schulte <schulte@gecode.org>
 *
 *  Copyright:
 *     Christian Schulte, 2008
 *
 *  This file is part of Gecode, the generic constraint
 *  development environment:
 *     http://www.gecode.org
 *
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 *  a copy of this software and associated documentation files (the
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namespace Gecode {

  template<class Var>
  class ValBranch {
  public:
    typedef typename BranchTraits<Var>::Val BranchVal;
    typedef typename BranchTraits<Var>::Commit BranchCommit;
  protected:
    Rnd r;
    BranchVal vf;
    BranchCommit cf;
  public:
    ValBranch(void);
    ValBranch(Rnd r);
    ValBranch(BranchVal v, BranchCommit c);
    Rnd rnd(void) const;
    BranchVal val(void) const;
    BranchCommit commit(void) const;
  };


  template<class Var>
  inline
  ValBranch<Var>::ValBranch(void)
    : vf(nullptr), cf(nullptr) {}

  template<class Var>
  inline
  ValBranch<Var>::ValBranch(Rnd r0)
    : r(r0), vf(nullptr), cf(nullptr) {
    if (!r)
      throw UninitializedRnd("ValBranch::ValBranch");
  }

  template<class Var>
  inline
  ValBranch<Var>::ValBranch(BranchVal v, BranchCommit c)
    : vf(v), cf(c) {}

  template<class Var>
  inline Rnd
  ValBranch<Var>::rnd(void) const {
    return r;
  }

  template<class Var>
  inline typename ValBranch<Var>::BranchVal
  ValBranch<Var>::val(void) const {
    return vf;
  }

  template<class Var>
  inline typename ValBranch<Var>::BranchCommit
  ValBranch<Var>::commit(void) const {
    return cf;
  }

}

// STATISTICS: kernel-branch