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5d541defe6
- add increment/decrement, repositioning. Simplify const_iterator.
- this makes is much easier to use labelRange for constructing ranges of
sub-lists. For symmetry with setSize() it has a setStart() instead of
simply assigning to start() directly. This would also provide the
future possibility to imbue the labelRange with a particular policy
(eg, no negative starts, max size etc) and ensure that they are
enforced.
A simple use case:
// initialize each to zero...
List<labelRange> subListRanges = ...;
// scan and categorize
if (condition)
subListRanges[categoryI]++; // increment size for that category
// finally, set the starting points
start = 0;
for (labelRange& range : subListRanges)
{
range.setStart(start);
start += range.size();
}
147 lines
3.4 KiB
C
147 lines
3.4 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) 2011-2016 OpenFOAM Foundation
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\\/ M anipulation | Copyright (C) 2017 OpenCFD Ltd.
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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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\*---------------------------------------------------------------------------*/
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// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
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inline Foam::labelRanges::labelRanges()
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:
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StorageContainer()
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{}
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inline Foam::labelRanges::labelRanges(const label nElem)
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:
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StorageContainer(nElem)
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{}
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// * * * * * * * * * * * * * * * * Iterators * * * * * * * * * * * * * * * * //
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inline Foam::labelRanges::const_iterator::const_iterator
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(
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const labelRanges* lst,
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const label i
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)
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:
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list_(lst),
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index_(i < 0 ? lst->size() : i),
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subIndex_(0)
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{}
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inline bool Foam::labelRanges::const_iterator::operator==
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(
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const const_iterator& iter
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) const
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{
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return
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(
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this->index_ == iter.index_
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&& this->subIndex_ == iter.subIndex_
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);
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}
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inline bool Foam::labelRanges::const_iterator::operator!=
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(
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const const_iterator& iter
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) const
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{
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return !(this->operator==(iter));
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}
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inline Foam::label Foam::labelRanges::const_iterator::operator*()
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{
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return list_->operator[](index_)[subIndex_];
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}
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inline Foam::labelRanges::const_iterator&
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Foam::labelRanges::const_iterator::operator++()
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{
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if (++subIndex_ >= list_->operator[](index_).size())
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{
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// Next sub-list
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++index_;
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subIndex_ = 0;
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}
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return *this;
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}
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inline Foam::labelRanges::const_iterator
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Foam::labelRanges::const_iterator::operator++(int)
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{
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const_iterator old = *this;
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this->operator++();
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return old;
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}
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inline Foam::labelRanges::const_iterator Foam::labelRanges::cbegin() const
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{
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return const_iterator(this, 0);
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}
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inline const Foam::labelRanges::const_iterator Foam::labelRanges::cend() const
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{
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return const_iterator(this, -1);
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}
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inline Foam::labelRanges::const_iterator Foam::labelRanges::begin() const
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{
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return const_iterator(this, 0);
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}
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inline const Foam::labelRanges::const_iterator Foam::labelRanges::end() const
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{
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return const_iterator(this, -1);
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}
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// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
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inline bool Foam::labelRanges::found(const label value) const
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{
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forAll(*this, i)
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{
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if (StorageContainer::operator[](i).found(value))
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{
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return true;
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}
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}
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return false;
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}
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// ************************************************************************* //
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