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========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2011-2020 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/>.
Class
Foam::labelBits
Description
A 29bits label and 3bits direction packed into single label
SourceFiles
\*---------------------------------------------------------------------------*/
#ifndef labelBits_H
#define labelBits_H
#include "label.H"
//#include "uLabel.H"
#include "direction.H"
#include "error.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
/*---------------------------------------------------------------------------*\
Class labelBits Declaration
\*---------------------------------------------------------------------------*/
class labelBits
{
// Private Data
label data_;
inline static label pack(const label val, const direction bits)
{
#ifdef FULLDEBUG
if (bits > 7 || (((val<<3)>>3) != val))
{
FatalErrorInFunction
<< "Direction " << bits << " outside range 0..7"
<< " or value " << val << " negative or larger than "
<< label(8*sizeof(label)-3) << " bit representation"
<< abort(FatalError);
}
#endif
return (val<<3) | bits;
}
public:
// Constructors
//- Construct null
inline labelBits()
{}
//- Construct from components
inline labelBits(const label val, const direction bits)
:
data_(pack(val, bits))
{}
//- Construct from Istream
inline labelBits(Istream& is)
{
is >> data_;
}
// Member Functions
inline label val() const
{
return data_ >> 3;
}
inline direction bits() const
{
return data_ & 7;
}
inline void setVal(const label val)
{
data_ = pack(val, bits());
}
inline void setBits(const direction bits)
{
data_ = pack(val(), bits);
}
// Member Operators
inline friend bool operator==(const labelBits& a, const labelBits& b)
{
return a.data_ == b.data_;
}
inline friend bool operator!=(const labelBits& a, const labelBits& b)
{
return !(a == b);
}
// IOstream Operators
inline friend Istream& operator>>(Istream& is, labelBits& lb)
{
return is >> lb.data_;
}
inline friend Ostream& operator<<(Ostream& os, const labelBits& lb)
{
return os << lb.data_;
}
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //
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