products.H

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/*---------------------------------------------------------------------------*\
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    \\  /    A nd           | www.openfoam.com
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-------------------------------------------------------------------------------
    Copyright (C) 2011-2016 OpenFOAM Foundation
    Copyright (C) 2019 OpenCFD Ltd.
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.
 
    OpenFOAM is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.
 
    You should have received a copy of the GNU General Public License
    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
InNamespace
    Foam
 
Description
    Traits classes for inner and outer products of primitives.
 
\*---------------------------------------------------------------------------*/
 
#ifndef products_H
#define products_H
 
#include "direction.H"
#include "pTraits.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
//- Abstract template class to provide the form resulting from
//- the inner-product of two forms
template<class Cmpt, class Form1, class Form2>
class typeOfInnerProduct
{};
 
//- Abstract template class to provide the form resulting from
//- the outer-product of two forms
template<class Cmpt, class Form1, class Form2>
class typeOfOuterProduct
{};
 
//- Abstract template class to provide the transpose form of a form
template<class Cmpt, class Form>
class typeOfTranspose
{};
 
 
template<class Cmpt, direction rank>
class typeOfRank
{};
 
 
template<class Cmpt, direction rank>
class symmTypeOfRank
{};
 
 
//- The extended precision type (solveScalar for float)
template<class Type>
class typeOfSolve
{
public:
 
    typedef Type type;
};
 
 
//- The magnitude type for given argument.
template<class arg1>
class typeOfMag
{
public:
 
    typedef typename pTraits<typename pTraits<arg1>::cmptType>::magType type;
};
 
 
template<class arg1, class arg2>
class typeOfSum
{
public:
 
    typedef arg1 type;
};
 
 
template<class arg1, class arg2>
class outerProduct
{
public:
 
    typedef typename typeOfRank
    <
        typename pTraits<arg1>::cmptType,
        direction(pTraits<arg1>::rank) + direction(pTraits<arg2>::rank)
    >::type type;
};
 
 
//- Outer-product of identical types
template<class arg1>
class outerProduct1
:
    public outerProduct<arg1, arg1>
{
public:
};
 
 
template<class arg1, class arg2>
class crossProduct
{
public:
 
    typedef typename typeOfRank
    <
        typename pTraits<arg2>::cmptType,
        direction(pTraits<arg1>::rank) + direction(pTraits<arg2>::rank) - 1
    >::type type;
};
 
template<class arg1, class arg2>
class innerProduct
{
public:
 
    typedef typename typeOfRank
    <
        typename pTraits<arg1>::cmptType,
        direction(pTraits<arg1>::rank) + direction(pTraits<arg2>::rank) - 2
    >::type type;
};
 
template<class arg1, class arg2>
class scalarProduct
{
public:
 
    typedef typename pTraits<arg1>::cmptType type;
};
 
 
template<class arg1, direction arg2>
class powProduct
{
public:
 
    typedef typename symmTypeOfRank
    <
        typename pTraits<arg1>::cmptType,
        arg2*direction(pTraits<arg1>::rank)
    >::type type;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
// Partial Specializations for non-VectorSpace quantities
 
template<class Cmpt>
class typeOfRank<Cmpt, 0>
{
public:
 
    typedef Cmpt type;
};
 
 
template<class Cmpt>
class symmTypeOfRank<Cmpt, 0>
{
public:
 
    typedef Cmpt type;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //