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========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2011-2024 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/>.
Typedef
Foam::label
Description
A label is an int32_t or int64_t as specified by the pre-processor macro
WM_LABEL_SIZE.
A readLabel function is defined so that label can be constructed from
Istream.
\*---------------------------------------------------------------------------*/
#ifndef label_H
#define label_H
#include "int.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#define INT_ADD_SIZE(x,s,y) x ## s ## y
#define INT_ADD_DEF_SIZE(x,s,y) INT_ADD_SIZE(x,s,y)
#define INT_SIZE(x,y) INT_ADD_DEF_SIZE(x,WM_LABEL_SIZE,y)
#if WM_LABEL_SIZE != 32 && WM_LABEL_SIZE != 64
#error "label.H: WM_LABEL_SIZE must be set to either 32 or 64"
#endif
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
typedef INT_SIZE(int, _t) label;
static const label labelMin = INT_SIZE(INT, _MIN);
static const label labelMax = INT_SIZE(INT, _MAX);
inline label readLabel(Istream& is)
{
return INT_SIZE(readInt,) (is);
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
//- Raise one label to the power of another
label pow(label a, label b);
//- Return n! : 0 < n <= 12
label factorial(label n);
//- Return the log base 2 by successive bit-shifting of the given label
inline label log2(label i)
{
label log2i = 0;
while (i >>= 1) log2i++;
return log2i;
}
inline label& setComponent(label& l, const direction)
{
return l;
}
inline label component(const label l, const direction)
{
return l;
}
inline label cmptMax(const label l)
{
return l;
}
inline label cmptMin(const label l)
{
return l;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#include "labelSpecific.H"
#undef INT_ADD_SIZE
#undef INT_ADD_DEF_SIZE
#undef INT_SIZE
#endif
// ************************************************************************* //
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