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/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
* Main authors:
* Vincent Barichard <Vincent.Barichard@univ-angers.fr>
*
* Copyright:
* 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.
*
*/
#ifndef GECODE_FLOAT_TRANSCENDENTAL_HH
#define GECODE_FLOAT_TRANSCENDENTAL_HH
#include <gecode/float.hh>
/**
* \namespace Gecode::Float::Transcendental
* \brief %Transcendental propagators
*/
namespace Gecode { namespace Float { namespace Transcendental {
/**
* \brief %Propagator for bounds consistent exp operator
*
* The types \a A and \a B give the types of the views.
*
* Requires \code #include <gecode/float/transcendental.hh> \endcode
* \ingroup FuncFloatProp
*/
template<class A, class B>
class Exp : 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;
/// Constructor for cloning \a p
Exp(Space& home, Exp& p);
/// Constructor for creation
Exp(Home home, A x0, B x1);
public:
/// Create copy during cloning
virtual Actor* copy(Space& home);
/// Perform propagation
virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
/// Post propagator for \f$e^{x_0} = x_1\f$
static ExecStatus post(Home home, A x0, B x1);
};
/**
* \brief %Propagator for bounds consistent pow operator
*
* The types \a A and \a B give the types of the views.
*
* Requires \code #include <gecode/float/transcendental.hh> \endcode
* \ingroup FuncFloatProp
*/
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;
FloatNum base;
/// Constructor for cloning \a p
Pow(Space& home, Pow& p);
/// Constructor for creation
Pow(Home home, FloatNum base, A x0, B x1);
public:
/// Create copy during cloning
virtual Actor* copy(Space& home);
/// Perform propagation
virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
/// Post propagator for \f$\mathit{base}^{x_0} = x_1\f$
static ExecStatus post(Home home, FloatNum base, A x0, B x1);
};
}}}
#include <gecode/float/transcendental/exp-log.hpp>
#endif
// STATISTICS: float-prop
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