/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
 *  Main authors:
 *     Christian Schulte <schulte@gecode.org>
 *
 *  Copyright:
 *     Christian Schulte, 2016
 *
 *  Last modified:
 *     $Date: 2016-12-02 13:20:09 +0100 (Fri, 02 Dec 2016) $ by $Author: schulte $
 *     $Revision: 15304 $
 *
 *  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
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 */

#ifndef __GECODE_FLOAT_BOOL_HH__
#define __GECODE_FLOAT_BOOL_HH__

#include <gecode/float.hh>

/**
 * \namespace Gecode::Float::Bool
 * \brief Boolean propagators
 */

namespace Gecode { namespace Float { namespace Bool {

  /**
   * \brief If-then-else propagator
   *
   * Requires \code #include <gecode/float/bool.hh> \endcode
   * \ingroup FuncFloatProp
   */
  template<class View>
  class Ite : public Propagator {
  protected:
    /// View for condition
    Int::BoolView b;
    /// Views
    View x0, x1, x2;
    /// Constructor for cloning \a p
    Ite(Space& home, bool share, Ite& p);
    /// Constructor for creation
    Ite(Home home, Int::BoolView b, View x0, View x1, View x2);
  public:
    /// Cost function (defined as low ternary)
    virtual PropCost cost(const Space& home, const ModEventDelta& med) const;
    /// Schedule function
    virtual void reschedule(Space& home);
    /// Copy propagator during cloning
    virtual Actor* copy(Space& home, bool share);
    /// Perform propagation
    virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
    /// Post if-then-else propagator
    static ExecStatus post(Home home, Int::BoolView b,
                           View x0, View x1, View x2);
    /// Delete propagator and return its size
    virtual size_t dispose(Space& home);
  };

}}}

#include <gecode/float/bool/ite.hpp>

#endif

// STATISTICS: float-prop

