products.H

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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | Copyright (C) 2011 OpenFOAM Foundation
     \\/     M anipulation  |
-------------------------------------------------------------------------------
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 "pTraits.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
template<class Cmpt, int rank>
class typeOfRank
{};
 
 
template<class Cmpt, int rank>
class symmTypeOfRank
{};
 
 
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,
        int(pTraits<arg1>::rank) + int(pTraits<arg2>::rank)
    >::type type;
};
 
 
template<class arg1, class arg2>
class crossProduct
{
public:
 
    typedef typename typeOfRank
    <
        typename pTraits<arg2>::cmptType,
        int(pTraits<arg1>::rank) + int(pTraits<arg2>::rank) - 1
    >::type type;
};
 
template<class arg1, class arg2>
class innerProduct
{
public:
 
    typedef typename typeOfRank
    <
        typename pTraits<arg1>::cmptType,
        int(pTraits<arg1>::rank) + int(pTraits<arg2>::rank) - 2
    >::type type;
};
 
template<class arg1, class arg2>
class scalarProduct
{
public:
 
    typedef typename pTraits<arg1>::cmptType type;
};
 
 
template<class arg1, int arg2>
class powProduct
{
public:
 
    typedef typename symmTypeOfRank
    <
        typename pTraits<arg1>::cmptType,
        arg2*int(pTraits<arg1>::rank)
    >::type type;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //