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OpenFOAM
primitives
hashes
Hasher
HasherInt.H
Go to the documentation of this file.
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/*---------------------------------------------------------------------------*\
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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) 1991-2010 OpenCFD Ltd.
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\\/ M anipulation |
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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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InNamespace
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Foam
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Description
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Optimized hashing functions.
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SeeAlso
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Hasher.H
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\*---------------------------------------------------------------------------*/
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#ifndef HasherInt_H
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#define HasherInt_H
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#include "
Hasher.H
"
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#include <cstddef>
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#include <stdint.h>
// C++0x uses <cstdint>
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace
Foam
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{
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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//- An optimized version of Hasher
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// @param[in] data - an array of uint32_t values
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// @param[in] length - the number of values (not bytes)
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// @param[in] seed - the previous hash, or an arbitrary value
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unsigned
HasherInt
(
const
uint32_t* data,
size_t
length,
unsigned
seed = 0);
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//- An optimized version of Hasher, returning dual hash values
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// @param[in] data - an array of uint32_t values
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// @param[in] len - the number of values (not bytes)
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// @param[in] hash1 - the previous hash, or an arbitrary value
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// on output, the primary hash value
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// @param[in] hash1 - the previous hash, or an arbitrary value
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// on output, the secondary hash value
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unsigned
HasherDual
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(
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const
uint32_t* data,
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size_t
len,
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unsigned
& hash1,
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unsigned
& hash2
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);
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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}
// End namespace Foam
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#endif
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// ************************ vim: set sw=4 sts=4 et: ************************ //