SortListI.H

Go to the documentation of this file.

/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | www.openfoam.com
     \\/     M anipulation  |
-------------------------------------------------------------------------------
    Copyright (C) 2019-2022 OpenCFD Ltd.
-------------------------------------------------------------------------------
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 "ListOps.H"  // For identity
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
template<class T>
inline Foam::SortList<T>::SortList(const UList<T>& values)
:
    IndirectList<T>(values, labelList())
{
    sort();
}
 
 
template<class T>
template<class Compare>
inline Foam::SortList<T>::SortList(const UList<T>& values, const Compare& comp)
:
    IndirectList<T>(values, labelList())
{
    sort<Compare>(comp);
}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
template<class T>
inline const Foam::labelUList& Foam::SortList<T>::indices() const noexcept
{
    return this->addressing();
}
 
 
template<class T>
inline Foam::labelList& Foam::SortList<T>::indices() noexcept
{
    return this->addressing();
}
 
 
template<class T>
inline void Foam::SortList<T>::reverse()
{
    Foam::reverse(this->indices());
}
 
 
template<class T>
inline void Foam::SortList<T>::reset()
{
    auto& addr = this->indices();
 
    addr.resize_nocopy(this->values().size());
    ListOps::identity(addr);
}
 
 
template<class T>
template<class Compare>
inline void Foam::SortList<T>::sort(const Compare& comp)
{
    auto& vals = this->values();
    auto& addr = this->indices();
 
    addr.resize_nocopy(vals.size());
    ListOps::identity(addr);
 
    std::stable_sort
    (
        addr.begin(),
        addr.end(),
        [&](label a, label b) -> bool { return comp(vals[a], vals[b]); }
    );
}
 
 
template<class T>
inline void Foam::SortList<T>::sort()
{
    Foam::sortedOrder(this->values(), this->indices());
}
 
 
template<class T>
inline void Foam::SortList<T>::uniqueSort()
{
    Foam::uniqueOrder(this->values(), this->indices());
}
 
 
template<class T>
inline void Foam::SortList<T>::reverseSort()
{
    // Reverse sorted order for indices
    Foam::sortedOrder
    (
        this->values(),
        this->indices(),
        typename UList<T>::greater(this->values())
    );
}
 
 
// ************************************************************************* //