MatrixBlockI.H

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    Copyright (C) 2016 OpenFOAM Foundation
    Copyright (C) 2019 OpenCFD Ltd.
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License
    This file is part of OpenFOAM.
 
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    for more details.
 
    You should have received a copy of the GNU General Public License
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// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
template<class MatrixType>
Foam::ConstMatrixBlock<MatrixType>::ConstMatrixBlock
(
    const MatrixType& matrix,
    const label m,
    const label n,
    const label mStart,
    const label nStart
)
:
    matrix_(matrix),
    mRows_(0 < m ? m : disallow("row dim")),
    nCols_(0 < n ? n : disallow("col dim")),
    rowStart_
    (
        0 <= mStart
     || mStart + mRows_ <= matrix.m()
     ?  mStart : disallow("row start")
    ),
    colStart_
    (
        0 <= nStart
     || nStart + nCols_ <= matrix.n()
     ?  nStart : disallow("col start")
    )
{}
 
 
template<class MatrixType>
Foam::MatrixBlock<MatrixType>::MatrixBlock
(
    MatrixType& matrix,
    const label m,
    const label n,
    const label mStart,
    const label nStart
)
:
    matrix_(matrix),
    mRows_(0 < m ? m : disallow("row dim")),
    nCols_(0 < n ? n : disallow("col dim")),
    rowStart_
    (
        0 <= mStart
     || mStart + mRows_ <= matrix.m()
     ?  mStart : disallow("row start")
    ),
    colStart_
    (
        0 <= nStart
     || nStart + nCols_ <= matrix.n()
     ?  nStart : disallow("col start")
    )
{}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
template<class MatrixType>
inline Foam::label Foam::ConstMatrixBlock<MatrixType>::size() const noexcept
{
    return (mRows_ * nCols_);
}
 
 
template<class MatrixType>
inline Foam::label Foam::MatrixBlock<MatrixType>::size() const noexcept
{
    return (mRows_ * nCols_);
}
 
 
template<class MatrixType>
inline Foam::labelPair
Foam::ConstMatrixBlock<MatrixType>::sizes() const noexcept
{
    return labelPair(mRows_, nCols_);
}
 
 
template<class MatrixType>
inline Foam::labelPair
Foam::MatrixBlock<MatrixType>::sizes() const noexcept
{
    return labelPair(mRows_, nCols_);
}
 
 
// * * * * * * * * * * * * * * * Member Operators  * * * * * * * * * * * * * //
 
template<class MatrixType>
inline const typename MatrixType::cmptType&
Foam::ConstMatrixBlock<MatrixType>::operator()
(
    const label i,
    const label j
) const
{
    #ifdef FULLDEBUG
    checkIndex(i, j);
    #endif
 
    return matrix_(i + rowStart_, j + colStart_);
}
 
 
template<class MatrixType>
inline const typename MatrixType::cmptType&
Foam::MatrixBlock<MatrixType>::operator()
(
    const label i,
    const label j
) const
{
    #ifdef FULLDEBUG
    checkIndex(i, j);
    #endif
 
    return matrix_(i + rowStart_, j + colStart_);
}
 
 
template<class MatrixType>
inline typename MatrixType::cmptType&
Foam::MatrixBlock<MatrixType>::operator()
(
    const label i,
    const label j
)
{
    #ifdef FULLDEBUG
    checkIndex(i, j);
    #endif
 
    return matrix_(i + rowStart_, j + colStart_);
}
 
 
// ************************************************************************* //