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/*---------------------------------------------------------------------------*\
========= |
\\ / 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/>.
\*---------------------------------------------------------------------------*/
#include "GatherBase.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
template<class Type>
Type GatherBase::flatten(const List<Type> lst)
{
label sum = 0;
forAll(lst, lstI)
{
sum += lst[lstI].size();
}
Type result(sum);
label index = 0;
forAll(lst, lstI)
{
const Type& sub = lst[lstI];
forAll(sub, subI)
{
result[index++] = sub[subI];
}
}
return result;
}
template<class DataType, class IndexType, class AddOp>
IndexType GatherBase::offset
(
const List<DataType>& values,
const List<IndexType>& indices,
AddOp aop
)
{
if (values.size() != indices.size())
{
FatalErrorInFunction
<< "Input data and indices lists not equal size." << endl
<< "data size:" << values.size()
<< " indices:" << indices.size()
<< abort(FatalError);
}
label sum = 0;
forAll(indices, lstI)
{
sum += indices[lstI].size();
}
IndexType result(sum);
label index = 0;
label offset = 0;
forAll(indices, lstI)
{
const IndexType& sub = indices[lstI];
forAll(sub, subI)
{
result[index++] = aop(sub[subI], offset);
}
offset += values[lstI].size();
}
return result;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace Foam
// ************************************************************************* //
|
