negEntry.H

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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
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    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/>.
 
Class
    Foam::functionEntries::negEntry
 
Description
    Negate a variable by prefixing with \c #neg
 
    E.g.
    \verbatim
        Umean 5.75;
        .
        .
        .
        inlet
        {
            type            uniformFixedValue;
            uniformValue    (#neg $Umean 0 0);
        }
    \endverbatim
    Note the space required between the \c #neg and the '$'
 
SourceFiles
    negEntry.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef negEntry_H
#define negEntry_H
 
#include "functionEntry.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace functionEntries
{
 
/*---------------------------------------------------------------------------*\
                          Class negEntry Declaration
\*---------------------------------------------------------------------------*/
 
class negEntry
:
    public functionEntry
{
    // Private Member Functions
 
        //- Lookup variable, negate and return as a string
        static string negateVariable
        (
            const dictionary& parentDict,
            Istream& is
        );
 
 
public:
 
    //- Runtime type information
    FunctionTypeName("#neg");
 
 
    // Constructors
 
        //- Disallow default bitwise copy construction
        negEntry(const negEntry&) = delete;
 
 
    // Member Functions
 
        //- Expand the functionEntry into the contextDict
        virtual bool execute(dictionary& contextDict, Istream& is)
        {
            NotImplemented;
            return false;
        }
 
        //- Expand the functionEntry into the contextEntry
        static bool execute
        (
            const dictionary& contextDict,
            primitiveEntry& contextEntry,
            Istream&
        );
 
 
    // Member Operators
 
        //- Disallow default bitwise assignment
        void operator=(const negEntry&) = delete;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace functionEntries
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //