var-imp.hpp

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/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
 *  Main authors:
 *     Filip Konvicka <filip.konvicka@logis.cz>
 *     Lubomir Moric <lubomir.moric@logis.cz>
 *     Vincent Barichard <Vincent.Barichard@univ-angers.fr>
 *
 *  Contributing authors:
 *     Christian Schulte <schulte@gecode.org>
 *
 *  Copyright:
 *     LOGIS, s.r.o., 2008
 *     Christian Schulte, 2010
 *     Vincent Barichard, 2012
 *
 *  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.
 *
 */

#include <cmath>

namespace Gecode { namespace Float {

  class FloatVarImp;

  class FloatDelta : public Delta {
    friend class FloatVarImp;
  private:
    FloatNum _min; 
    FloatNum _max; 
  public:
    FloatDelta(void);
    FloatDelta(FloatNum min, FloatNum max);
  private:
    FloatNum min(void) const;
    FloatNum max(void) const;
  };

}}

#include <gecode/float/var-imp/delta.hpp>

namespace Gecode { namespace Float {

  class FloatVarImp : public FloatVarImpBase {
  protected:
    FloatVal dom;
    FloatVarImp(Space& home, FloatVarImp& x);
  public:
    FloatVarImp(Space& home, const FloatVal& d);



    FloatVal domain(void) const;
    FloatNum min(void) const;
    FloatNum max(void) const;
    FloatVal val(void) const;
    FloatNum med(void) const;

    FloatNum size(void) const;



    bool assigned(void) const;

    bool zero_in(void) const;
    bool in(FloatNum n) const;
    bool in(const FloatVal& n) const;



    ModEvent eq(Space& home, FloatNum n);
    ModEvent eq(Space& home, const FloatVal& n);
    ModEvent lq(Space& home, FloatNum n);
    ModEvent lq(Space& home, const FloatVal& n);
    ModEvent gq(Space& home, FloatNum n);
    ModEvent gq(Space& home, const FloatVal& n);



    GECODE_FLOAT_EXPORT void subscribe(Space& home, Propagator& p, PropCond pc, bool schedule=true);
    GECODE_FLOAT_EXPORT void reschedule(Space& home, Propagator& p, PropCond pc);
    GECODE_FLOAT_EXPORT void subscribe(Space& home, Advisor& a, bool fail);



    static ModEventDelta med(ModEvent me);


  private:
    GECODE_FLOAT_EXPORT FloatVarImp* perform_copy(Space& home);
  public:


    FloatVarImp* copy(Space& home);



    static FloatNum min(const Delta& d);
    static FloatNum max(const Delta& d);
  };

}}

#include <gecode/float/var-imp/float.hpp>

// STATISTICS: float-var