CompactListList.C

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    Copyright (C) 2019-2021 OpenCFD Ltd.
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    This file is part of OpenFOAM.
 
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#include "CompactListList.H"
 
// * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * * //
 
template<class T, class Container>
Foam::CompactListList<T, Container>::CompactListList(const List<Container>& ll)
:
    size_(ll.size()),
    offsets_(ll.size()+1)
{
    label sumSize = 0;
    offsets_[0] = 0;
    forAll(ll, i)
    {
        sumSize += ll[i].size();
        offsets_[i+1] = sumSize;
    }
 
    m_.setSize(sumSize);
 
    label k = 0;
    forAll(ll, i)
    {
        const Container& lli = ll[i];
 
        forAll(lli, j)
        {
            m_[k++] = lli[j];
        }
    }
}
 
 
template<class T, class Container>
Foam::CompactListList<T, Container>::CompactListList
(
    const labelUList& rowSizes
)
:
    size_(rowSizes.size()),
    offsets_(rowSizes.size()+1)
{
    label sumSize = 0;
    offsets_[0] = 0;
    forAll(rowSizes, i)
    {
        sumSize += rowSizes[i];
        offsets_[i+1] = sumSize;
    }
 
    m_.setSize(sumSize);
}
 
 
template<class T, class Container>
Foam::CompactListList<T, Container>::CompactListList
(
    const labelUList& rowSizes,
    const T& val
)
:
    size_(rowSizes.size()),
    offsets_(rowSizes.size()+1)
{
    label sumSize = 0;
    offsets_[0] = 0;
    forAll(rowSizes, i)
    {
        sumSize += rowSizes[i];
        offsets_[i+1] = sumSize;
    }
 
    m_.setSize(sumSize, val);
}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
template<class T, class Container>
void Foam::CompactListList<T, Container>::setSize(const label mRows)
{
    if (mRows == 0)
    {
        clear();
    }
    if (mRows < size())
    {
        size_ = mRows;
        offsets_.setSize(mRows+1);
        m_.setSize(offsets_[mRows]);
    }
    else if (mRows > size())
    {
        FatalErrorInFunction
            << "Cannot be used to extend the list from " << offsets_.size()
            << " to " << mRows << nl
            << "    Please use one of the other setSize member functions"
            << abort(FatalError);
    }
}
 
 
template<class T, class Container>
void Foam::CompactListList<T, Container>::setSize
(
    const label mRows,
    const label nData
)
{
    size_ = mRows;
    offsets_.setSize(mRows+1);
    m_.setSize(nData);
}
 
 
template<class T, class Container>
void Foam::CompactListList<T, Container>::setSize
(
    const label mRows,
    const label nData,
    const T& t
)
{
    size_ = mRows;
    offsets_.setSize(mRows+1);
    m_.setSize(nData, t);
}
 
 
template<class T, class Container>
void Foam::CompactListList<T, Container>::setSize(const labelUList& rowSizes)
{
    size_ = rowSizes.size();
    offsets_.setSize(rowSizes.size()+1);
 
    label sumSize = 0;
    offsets_[0] = 0;
    forAll(rowSizes, i)
    {
        sumSize += rowSizes[i];
        offsets_[i+1] = sumSize;
    }
 
    m_.setSize(sumSize);
}
 
 
template<class T, class Container>
Foam::labelList Foam::CompactListList<T, Container>::sizes() const
{
    labelList rowSizes(size());
 
    if (rowSizes.size() > 0)
    {
        forAll(rowSizes, i)
        {
            rowSizes[i] = offsets_[i+1] - offsets_[i];
        }
    }
    return rowSizes;
}
 
 
template<class T, class Container>
void Foam::CompactListList<T, Container>::clear()
{
    size_ = 0;
    offsets_.clear();
    m_.clear();
}
 
 
template<class T, class Container>
void Foam::CompactListList<T, Container>::swap
(
    CompactListList<T, Container>& other
)
{
    if (this == &other)
    {
        return;  // Self-swap is a no-op
    }
 
    std::swap(size_, other.size_);
    offsets_.swap(other.offsets_);
    m_.swap(other.m_);
}
 
 
template<class T, class Container>
void Foam::CompactListList<T, Container>::transfer
(
    CompactListList<T, Container>& list
)
{
    if (this == &list)
    {
        return;  // Self-assignment is a no-op
    }
 
    this->clear();
    this->swap(list);
}
 
 
// * * * * * * * * * * * * * * * Member Operators  * * * * * * * * * * * * * //
 
template<class T, class Container>
Foam::List<Container> Foam::CompactListList<T, Container>::operator()()
const
{
    List<Container> ll(size());
 
    forAll(ll, i)
    {
        ll[i] = Container(operator[](i));
    }
 
    return ll;
}
 
 
// ************************************************************************* //