OneConstant.H

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License
    This file is part of OpenFOAM.

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Class
    Foam::Function1Types::OneConstant

Description
    Templated function that returns the corresponding 1 (one).

    Usage:
    \verbatim
        <entryName> one;
    \endverbatim

SourceFiles
    OneConstant.C

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

#ifndef OneConstant_H
#define OneConstant_H

#include "Function1.H"

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

namespace Foam
{
namespace Function1Types
{

/*---------------------------------------------------------------------------*\
                           Class OneConstant Declaration
\*---------------------------------------------------------------------------*/

template<class Type>
class OneConstant
:
    public Function1<Type>
{

public:

    // Runtime type information
    TypeName("one");


    // Constructors

        //- Construct from entry name
        OneConstant(const word& entryName);

        //- Construct from entry name and dictionary
        OneConstant(const word& entryName, const dictionary& dict);

        //- Construct and return a clone
        virtual tmp<Function1<Type>> clone() const
        {
            return tmp<Function1<Type>>(new OneConstant<Type>(*this));
        }


    //- Destructor
    virtual ~OneConstant();


    // Member Functions

        //- Return constant value
        virtual inline Type value(const scalar) const;

        //- Integrate between two values
        virtual inline Type integrate(const scalar x1, const scalar x2) const;

        //- Return value as a function of (scalar) independent variable
        virtual tmp<Field<Type>> value(const scalarField& x) const;

        //- Integrate between two (scalar) values
        virtual tmp<Field<Type>> integrate
        (
            const scalarField& x1,
            const scalarField& x2
        ) const;

        //- Write in dictionary format
        virtual void writeData(Ostream& os) const;


    // Member Operators

        //- Disallow default bitwise assignment
        void operator=(const OneConstant<Type>&) = delete;
};


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

} // End namespace Function1Types
} // End namespace Foam

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

#include "OneConstantI.H"

#ifdef NoRepository
    #include "OneConstant.C"
#endif

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

#endif

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