74e16d7729
Add support for constructing VectorSpaces from forms with lower component type, e.g. Vector<scalar> from Vector<label>
103 lines
2.7 KiB
C++
103 lines
2.7 KiB
C++
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright (C) 2011-2013 OpenFOAM Foundation
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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Class
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Foam::GatherBase
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Description
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SourceFiles
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GatherBase.C
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\*---------------------------------------------------------------------------*/
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#ifndef GatherBase_H
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#define GatherBase_H
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#include "List.H"
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#include "labelList.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace Foam
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{
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/*---------------------------------------------------------------------------*\
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Class GatherBase Declaration
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\*---------------------------------------------------------------------------*/
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class GatherBase
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{
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public:
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//- Flatten: appends all elements of list into one single list.
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// Used to collapse 'Gathered' data.
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template<class T>
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static T flatten(const List<T>);
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//- Flatten and offset 'Gathered' indices (into value) so they
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// remain valid with respect to values (after they have been flattened)
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template<class DataType, class IndexType, class AddOp>
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static IndexType offset
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(
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const List<DataType>& values,
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const List<IndexType>& indices,
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AddOp aop
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);
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};
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template<class T>
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class AddOp
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{
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public:
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T operator()
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(
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const T& x,
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const label offset
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) const
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{
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return x + offset;
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}
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};
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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} // End namespace Foam
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#ifdef NoRepository
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# include "GatherBase.C"
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#endif
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#endif
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// ************************************************************************* //
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