SubList.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
    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::SubList
 
Description
    A List obtained as a section of another List.
 
    Since the SubList is itself unallocated, no storage is allocated or
    de-allocated during its use.  To achieve this behaviour, SubList is
    derived from UList rather than List.
 
SourceFiles
    SubListI.H
 
\*---------------------------------------------------------------------------*/
 
#ifndef SubList_H
#define SubList_H
 
#include "List.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
                           Class SubList Declaration
\*---------------------------------------------------------------------------*/
 
template<class T>
class SubList
:
    public UList<T>
{
 
public:
 
    // Static Member Functions
 
        //- Return a null SubList
        inline static const SubList<T>& null();
 
 
    // Constructors
 
        //- Construct from UList and sub-list size
        inline SubList
        (
            const UList<T>& list,
            const label subSize
        );
 
        //- Construct from UList, sub-list size and start index
        inline SubList
        (
            const UList<T>& list,
            const label subSize,
            const label startIndex
        );
 
        //- Copy constructor
        inline SubList(const SubList<T>& sl) = default;
 
 
    // Member Functions
 
        //- Transfer the contents of the argument List into this list
        inline void transfer(UList<T>&);
 
 
    // Member Operators
 
        //- Allow cast to a const List<T>&
        inline operator const Foam::List<T>&() const;
 
        //- Assignment of all entries to the given sub-list
        inline void operator=(const SubList<T>&);
 
        //- Assignment of all entries to the given list
        inline void operator=(const UList<T>&);
 
        //- Assignment of all entries to the given value
        inline void operator=(const T&);
 
        //- Assignment of all entries to zero
        inline void operator=(const zero);
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#include "SubListI.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //