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https://github.com/OpenFOAM/OpenFOAM-6.git
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84 lines
2.4 KiB
C
84 lines
2.4 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) 2011-2018 OpenFOAM Foundation
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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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\*---------------------------------------------------------------------------*/
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#include "label.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#if WM_LABEL_SIZE == 32
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const char* const Foam::pTraits<int64_t>::typeName = "int64";
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const char* const Foam::pTraits<int32_t>::typeName = "label";
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#elif WM_LABEL_SIZE == 64
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const char* const Foam::pTraits<int64_t>::typeName = "label";
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const char* const Foam::pTraits<int32_t>::typeName = "int32";
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#endif
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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Foam::label Foam::pow(label a, label b)
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{
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label ans = 1;
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for (label i=0; i<b; i++)
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{
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ans *= a;
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}
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#ifdef FULLDEBUG
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if (b < 0)
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{
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FatalErrorInFunction
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<< "negative value for b is not supported"
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<< abort(FatalError);
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}
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#endif
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return ans;
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}
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Foam::label Foam::factorial(label n)
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{
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static label factTable[13] =
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{
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1, 1, 2, 6, 24, 120, 720, 5040, 40320,
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362880, 3628800, 39916800, 479001600
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};
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#ifdef FULLDEBUG
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if (n > 12 || n < 0)
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{
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FatalErrorInFunction
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<< "n value out of range"
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<< abort(FatalError);
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}
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#endif
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return factTable[n];
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}
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// ************************************************************************* //
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