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========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2022-2024 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 "HashList.H"
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
namespace Foam
{
template<class Type, class Key, class Hash>
const Key HashList<Type, Key, Hash>::nullKey = Key::null;
}
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
template<class Type, class Key, class Hash>
Foam::HashList<Type, Key, Hash>::HashList(const label size)
:
DynamicList<Tuple2<Key, Type>>(size, Tuple2<Key, Type>(nullKey, Type()))
{}
// * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * * //
template<class Type, class Key, class Hash>
inline Foam::label Foam::HashList<Type, Key, Hash>::capacity() const
{
return DynamicList<Tuple2<Key, Type>>::size();
}
template<class Type, class Key, class Hash>
void Foam::HashList<Type, Key, Hash>::clear()
{
DynamicList<Tuple2<Key, Type>>::operator=
(
Tuple2<Key, Type>(nullKey, Type())
);
}
template<class Type, class Key, class Hash>
void Foam::HashList<Type, Key, Hash>::resizeAndClear(const label newSize)
{
DynamicList<Tuple2<Key, Type>>::resize(newSize);
clear();
}
template<class Type, class Key, class Hash>
bool Foam::HashList<Type, Key, Hash>::insert(const Key& k, const Type& t)
{
DynamicList<Tuple2<Key, Type>>& map = *this;
const label n = map.size();
const unsigned h = Hash()(k);
for (label i = 0; i < n; i ++)
{
const label hi = (h + i) % n;
if (map[hi].first() == nullKey)
{
map[hi] = Tuple2<Key, Type>(k, t);
return true;
}
if (map[hi].first() == k)
{
return false;
}
}
FatalErrorInFunction
<< "Hash list is full"
<< exit(FatalError);
return false;
}
// * * * * * * * * * * * * * * Member Operators * * * * * * * * * * * * * * //
template<class Type, class Key, class Hash>
const Type& Foam::HashList<Type, Key, Hash>::operator[](const Key& k) const
{
const DynamicList<Tuple2<Key, Type>>& map = *this;
const label n = map.size();
const unsigned h = Hash()(k);
for (label i = 0; i < n; i ++)
{
const label hi = (h + i) % n;
if (map[hi].first() == k)
{
return map[hi].second();
}
}
FatalErrorInFunction
<< "Hash list does not contain key \"" << k << "\""
<< exit(FatalError);
return NullObjectRef<Type>();
}
// ************************************************************************* //
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