relax.cpp

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/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
 *  Main authors:
 *     Christian Schulte <schulte@gecode.org>
 *
 *  Copyright:
 *     Christian Schulte, 2016
 *
 *  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
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 *  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.
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#include <gecode/float.hh>
#include <gecode/search/relax.hh>

namespace Gecode { namespace Float {

  class Relax {
  public:
    ExecStatus operator ()(Home home, FloatVar x, FloatVar sx);
  };

  forceinline ExecStatus
  Relax::operator ()(Home home, FloatVar x, FloatVar sx) {
    FloatView xv(x);
    return me_failed(xv.eq(home,sx.val())) ? ES_FAILED : ES_OK;
  }

}}

namespace Gecode {

  void
  relax(Home home, const FloatVarArgs& x, const FloatVarArgs& sx,
        Rnd r, double p) {
    if (x.size() != sx.size())
      throw Float::ArgumentSizeMismatch("Float::relax");
    if ((p < 0.0) || (p > 1.0))
      throw Float::OutOfLimits("Float::relax");
    Float::Relax fr;
    Search::relax<FloatVarArgs,Float::Relax>(home,x,sx,r,p,fr);
  }

}

// STATISTICS: float-other