add.H

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/*---------------------------------------------------------------------------*\
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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
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Class
    Foam::functionObjects::add

Description
    Add a list of fields.

    The operation can be applied to any volume or surface fields generating a
    volume or surface scalar field.

    Example of function object specification:
    \verbatim
    Ttot
    {
        type            add;
        libs            ("libfieldFunctionObjects.so");
        fields          (T Tdelta);
        result          Ttot;
        executeControl  writeTime;
        writeControl    writeTime;
    }
    \endverbatim

See also
    Foam::functionObjects::fieldsExpression
    Foam::functionObjects::fvMeshFunctionObject

SourceFiles
    add.C

\*---------------------------------------------------------------------------*/

#ifndef functionObjects_add_H
#define functionObjects_add_H

#include "fieldsExpression.H"

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

namespace Foam
{
namespace functionObjects
{

/*---------------------------------------------------------------------------*\
                             Class add Declaration
\*---------------------------------------------------------------------------*/

class add
:
    public fieldsExpression
{
    // Private Member Functions

        //- Add the list of fields and return true if successful
        virtual bool calc();


public:

    //- Runtime type information
    TypeName("add");


    // Constructors

        //- Construct from Time and dictionary
        add
        (
            const word& name,
            const Time& runTime,
            const dictionary& dict
        );


    //- Destructor
    virtual ~add();
};


// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

} // End namespace functionObjects
} // End namespace Foam

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

#endif

// ************************************************************************* //