arithmetic.hh

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/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
 *  Main authors:
 *     Christian Schulte <schulte@gecode.org>
 *     Guido Tack <tack@gecode.org>
 *     Vincent Barichard <Vincent.Barichard@univ-angers.fr>
 *
 *  Copyright:
 *     Christian Schulte, 2002
 *     Guido Tack, 2004
 *     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
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 */

#ifndef __GECODE_FLOAT_ARITHMETIC_HH__
#define __GECODE_FLOAT_ARITHMETIC_HH__

#include <gecode/int.hh>
#include <gecode/float.hh>
#include <gecode/float/rel.hh>

namespace Gecode { namespace Float { namespace Arithmetic {

  template<class VA, class VB>
  class SqrPlus : public MixBinaryPropagator<VA,PC_FLOAT_BND,VB,PC_FLOAT_BND> {
  protected:
    using MixBinaryPropagator<VA,PC_FLOAT_BND,VB,PC_FLOAT_BND>::x0;
    using MixBinaryPropagator<VA,PC_FLOAT_BND,VB,PC_FLOAT_BND>::x1;
    SqrPlus(Home home, VA x0, VB x1);
    SqrPlus(Space& home, SqrPlus<VA,VB>& p);
  public:
    static ExecStatus post(Home home, VA x0, VB x1);
    virtual Actor* copy(Space& home);
    virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
  };

  template<class View>
  class Sqr : public BinaryPropagator<View,PC_FLOAT_BND> {
  protected:
    using BinaryPropagator<View,PC_FLOAT_BND>::x0;
    using BinaryPropagator<View,PC_FLOAT_BND>::x1;

    Sqr(Space& home, Sqr& p);
    Sqr(Home home, View x0, View x1);
  public:
    virtual Actor* copy(Space& home);
    virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
    static ExecStatus post(Home home, View x0, View x1);
  };

  template<class A, class B>
  class Sqrt : public MixBinaryPropagator<A,PC_FLOAT_BND,B,PC_FLOAT_BND> {
  protected:
    using MixBinaryPropagator<A,PC_FLOAT_BND,B,PC_FLOAT_BND>::x0;
    using MixBinaryPropagator<A,PC_FLOAT_BND,B,PC_FLOAT_BND>::x1;

    Sqrt(Space& home, Sqrt& p);
    Sqrt(Home home, A x0, B x1);
  public:
    virtual Actor* copy(Space& home);
    virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
    static ExecStatus post(Home home, A x0, B x1);
  };

  template<class A, class B>
  class Abs : public MixBinaryPropagator<A,PC_FLOAT_BND,B,PC_FLOAT_BND> {
  protected:
    using MixBinaryPropagator<A,PC_FLOAT_BND,B,PC_FLOAT_BND>::x0;
    using MixBinaryPropagator<A,PC_FLOAT_BND,B,PC_FLOAT_BND>::x1;

    Abs(Space& home, Abs& p);
    Abs(Home home, A x0, B x1);
  public:
    Abs(Space& home, Propagator& p, A x0, B x1);
    virtual Actor* copy(Space& home);
    virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
    static ExecStatus post(Home home, A x0, B x1);
  };

  template<class A, class B>
  class Pow : public MixBinaryPropagator<A,PC_FLOAT_BND,B,PC_FLOAT_BND> {
  protected:
    using MixBinaryPropagator<A,PC_FLOAT_BND,B,PC_FLOAT_BND>::x0;
    using MixBinaryPropagator<A,PC_FLOAT_BND,B,PC_FLOAT_BND>::x1;
    int m_n;

    Pow(Space& home, Pow& p);
    Pow(Home home, A x0, B x1, int n);
  public:
    virtual Actor* copy(Space& home);
    virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
    static ExecStatus post(Home home, A x0, B x1, int n);
  };

  template<class A, class B>
  class NthRoot : public MixBinaryPropagator<A,PC_FLOAT_BND,B,PC_FLOAT_BND> {
  protected:
    using MixBinaryPropagator<A,PC_FLOAT_BND,B,PC_FLOAT_BND>::x0;
    using MixBinaryPropagator<A,PC_FLOAT_BND,B,PC_FLOAT_BND>::x1;
    int m_n;

    NthRoot(Space& home, NthRoot& p);
    NthRoot(Home home, A x0, B x1, int n);
  public:
    virtual Actor* copy(Space& home);
    virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
    static ExecStatus post(Home home, A x0, B x1, int n);
  };

  template<class View>
  class MultZeroOne : public BinaryPropagator<View,PC_FLOAT_BND> {
  protected:
    using BinaryPropagator<View,PC_FLOAT_BND>::x0;
    using BinaryPropagator<View,PC_FLOAT_BND>::x1;

    MultZeroOne(Space& home, MultZeroOne<View>& p);
    MultZeroOne(Home home, View x0, View x1);
  public:
    virtual Actor* copy(Space& home);
    virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
    static ExecStatus post(Home home, View x0, View x1);
  };


  template<class VA, class VB, class VC>
  class MultPlus :
    public MixTernaryPropagator<VA,PC_FLOAT_BND,VB,PC_FLOAT_BND,VC,PC_FLOAT_BND> {
  protected:
    using MixTernaryPropagator<VA,PC_FLOAT_BND,VB,PC_FLOAT_BND,VC,PC_FLOAT_BND>::x0;
    using MixTernaryPropagator<VA,PC_FLOAT_BND,VB,PC_FLOAT_BND,VC,PC_FLOAT_BND>::x1;
    using MixTernaryPropagator<VA,PC_FLOAT_BND,VB,PC_FLOAT_BND,VC,PC_FLOAT_BND>::x2;
  public:
    MultPlus(Home home, VA x0, VB x1, VC x2);
    MultPlus(Space& home, MultPlus<VA,VB,VC>& p);
    static ExecStatus post(Home home, VA x0, VB x1, VC x2);
    virtual Actor* copy(Space& home);
    virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
  };

  template<class View>
  class Mult : public TernaryPropagator<View,PC_FLOAT_BND> {
  protected:
    using TernaryPropagator<View,PC_FLOAT_BND>::x0;
    using TernaryPropagator<View,PC_FLOAT_BND>::x1;
    using TernaryPropagator<View,PC_FLOAT_BND>::x2;

    Mult(Space& home, Mult<View>& p);
  public:
    Mult(Home home, View x0, View x1, View x2);
    static  ExecStatus post(Home home, View x0, View x1, View x2);
    virtual Actor* copy(Space& home);
    virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
  };


  template<class A, class B, class C>
  class Div : public MixTernaryPropagator<A,PC_FLOAT_BND,B,PC_FLOAT_BND,C,PC_FLOAT_BND> {
  protected:
    using MixTernaryPropagator<A,PC_FLOAT_BND,B,PC_FLOAT_BND,C,PC_FLOAT_BND>::x0;
    using MixTernaryPropagator<A,PC_FLOAT_BND,B,PC_FLOAT_BND,C,PC_FLOAT_BND>::x1;
    using MixTernaryPropagator<A,PC_FLOAT_BND,B,PC_FLOAT_BND,C,PC_FLOAT_BND>::x2;
    Div(Space& home, Div& p);
    Div(Home home, A x0, B x1, C x2);
  public:
    virtual Actor* copy(Space& home);
    virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
    static ExecStatus post(Home home, A x0, B x1, C x2);
  };

  template<class A, class B, class C>
  class Min : public MixTernaryPropagator<A,PC_FLOAT_BND,B,PC_FLOAT_BND,C,PC_FLOAT_BND> {
  protected:
    using MixTernaryPropagator<A,PC_FLOAT_BND,B,PC_FLOAT_BND,C,PC_FLOAT_BND>::x0;
    using MixTernaryPropagator<A,PC_FLOAT_BND,B,PC_FLOAT_BND,C,PC_FLOAT_BND>::x1;
    using MixTernaryPropagator<A,PC_FLOAT_BND,B,PC_FLOAT_BND,C,PC_FLOAT_BND>::x2;
    Min(Space& home, Min& p);
    Min(Home home, A x0, B x1, C x2);
  public:
    Min(Space& home, Propagator& p, A x0, B x1, C x2);
    virtual Actor* copy(Space& home);
    virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
    static ExecStatus post(Home home, A x0, B x1, C x2);
  };

  template<class A, class B, class C>
  class Max : public MixTernaryPropagator<A,PC_FLOAT_BND,B,PC_FLOAT_BND,C,PC_FLOAT_BND> {
  protected:
    using MixTernaryPropagator<A,PC_FLOAT_BND,B,PC_FLOAT_BND,C,PC_FLOAT_BND>::x0;
    using MixTernaryPropagator<A,PC_FLOAT_BND,B,PC_FLOAT_BND,C,PC_FLOAT_BND>::x1;
    using MixTernaryPropagator<A,PC_FLOAT_BND,B,PC_FLOAT_BND,C,PC_FLOAT_BND>::x2;
    Max(Space& home, Max& p);
    Max(Home home, A x0, B x1, C x2);
  public:
    Max(Space& home, Propagator& p, A x0, B x1, C x2);
    virtual Actor* copy(Space& home);
    virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
    static ExecStatus post(Home home, A x0, B x1, C x2);
  };

  template<class View>
  class NaryMax : public NaryOnePropagator<View,PC_FLOAT_BND> {
  protected:
    using NaryOnePropagator<View,PC_FLOAT_BND>::x;
    using NaryOnePropagator<View,PC_FLOAT_BND>::y;

    NaryMax(Space& home, NaryMax& p);
    NaryMax(Home home, ViewArray<View>& x, View y);
  public:
    virtual Actor* copy(Space& home);
    virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
    static  ExecStatus post(Home home, ViewArray<View>& x, View y);
  };

}}}

#include <gecode/float/arithmetic/sqr-sqrt.hpp>
#include <gecode/float/arithmetic/abs.hpp>
#include <gecode/float/arithmetic/pow-nroot.hpp>
#include <gecode/float/arithmetic/mult.hpp>
#include <gecode/float/arithmetic/div.hpp>
#include <gecode/float/arithmetic/min-max.hpp>

#endif

// STATISTICS: float-prop