PolynomialEntry: Templated polynomial DataEntry to support all basic field types from scalar to tensor

This allows polynomial functions for e.g. velocity to be specified in the uniformFixedValue BC

Consider a linear function for Ux(t) with Uy and Uz = 0:

    inlet
    {
        type            uniformFixedValue;
        uniformValue    polynomial
        (
            ((10 0 0)   (0 0 0))
            ((100 0 0)  (1 0 0))
        );
    }

Resolves bug report http://www.openfoam.org/mantisbt/view.php?id=1508

src/OpenFOAM/primitives/functions/DataEntry/PolynomialEntry/PolynomialEntry.H

@@ -0,0 +1,180 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011-2015 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/>.
+
+Class
+    Foam::PolynomialEntry
+
+Description
+    PolynomialEntry container data entry for scalars. Items are stored in a
+    list of Tuple2's. Data is input in the form,
+    e.g. for an entry \<entryName\> that describes y = x^2 + 2x^3
+
+    \verbatim
+        <entryName>  polynomial  [0 0 1 0 0] // optional dimensions
+        (
+            (1    2)
+            (2    3)
+        );
+    \endverbatim
+
+SourceFiles
+    PolynomialEntry.C
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef PolynomialEntry_H
+#define PolynomialEntry_H
+
+#include "DataEntry.H"
+#include "Tuple2.H"
+#include "dimensionSet.H"
+#include "DataEntryFwd.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+// Forward declaration of classes
+
+template<class Type>
+class PolynomialEntry;
+
+// Forward declaration of friend functions
+template<class Type>
+Ostream& operator<<(Ostream&, const PolynomialEntry<Type>&);
+
+/*---------------------------------------------------------------------------*\
+                        Class PolynomialEntry Declaration
+\*---------------------------------------------------------------------------*/
+
+template<class Type>
+class PolynomialEntry
+:
+    public DataEntry<Type>
+{
+    // Private data
+
+        //- PolynomialEntry coefficients - list of prefactor, exponent
+        List<Tuple2<Type, Type> > coeffs_;
+
+        //- Flag to indicate whether poly can be integrated
+        bool canIntegrate_;
+
+        //- The dimension set
+        dimensionSet dimensions_;
+
+
+    // Private Member Functions
+
+        //- Disallow default bitwise assignment
+        void operator=(const PolynomialEntry<Type>&);
+
+
+public:
+
+    //- Runtime type information
+    TypeName("polynomial");
+
+
+    // Constructors
+
+        PolynomialEntry(const word& entryName, const dictionary& dict);
+
+        //- Construct from components
+        PolynomialEntry
+        (
+            const word& entryName,
+            const List<Tuple2<Type, Type> >&
+        );
+
+        //- Copy constructor
+        PolynomialEntry(const PolynomialEntry& poly);
+
+        //- Construct and return a clone
+        virtual tmp<DataEntry<Type> > clone() const
+        {
+            return tmp<DataEntry<Type> >(new PolynomialEntry(*this));
+        }
+
+
+    //- Destructor
+    virtual ~PolynomialEntry();
+
+
+    // Member Functions
+
+        // Manipulation
+
+            //- Convert time
+            virtual void convertTimeBase(const Time& t);
+
+
+        // Evaluation
+
+            //- Return PolynomialEntry value
+            Type value(const scalar x) const;
+
+            //- Integrate between two (scalar) values
+            Type integrate(const scalar x1, const scalar x2) const;
+
+            //- Return dimensioned constant value
+            dimensioned<Type> dimValue(const scalar) const;
+
+            //- Integrate between two values and return dimensioned type
+            dimensioned<Type> dimIntegrate
+            (
+                const scalar x1,
+                const scalar x2
+            ) const;
+
+
+    // I/O
+
+        //- Ostream Operator
+        friend Ostream& operator<< <Type>
+        (
+            Ostream& os,
+            const PolynomialEntry<Type>& cnst
+        );
+
+        //- Write in dictionary format
+        virtual void writeData(Ostream& os) const;
+};
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#ifdef NoRepository
+#   include "PolynomialEntry.C"
+#endif
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //