flipOp.H

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License
    This file is part of OpenFOAM.
 
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    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.
 
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    You should have received a copy of the GNU General Public License
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Class
    Foam::flipOp
 
Description
    Class containing functor to negate primitives. Dummy for all other types.
 
    Used in mesh transformations where face can flip.
 
SourceFiles
    flipOp.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef flipOp_H
#define flipOp_H
 
#include "fieldTypes.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
                           Class flipOp Declaration
\*---------------------------------------------------------------------------*/
 
class flipOp
{
public:
 
    template<class Type>
    Type operator()(const Type& val) const
    {
        return val;
    }
};
 
 
class noOp
{
public:
 
    template<class Type>
    Type operator()(const Type& val) const
    {
        return val;
    }
};
 
 
class flipLabelOp
{
public:
 
    label operator()(const label& val) const
    {
        return -val;
    }
};
 
 
// Template specialisation for primitives that support negation
template<> scalar flipOp::operator()(const scalar&) const;
template<> vector flipOp::operator()(const vector&) const;
template<> sphericalTensor flipOp::operator()(const sphericalTensor&) const;
template<> symmTensor flipOp::operator()(const symmTensor&) const;
template<> tensor flipOp::operator()(const tensor&) const;
template<> triad flipOp::operator()(const triad&) const;
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //