| /*---------------------------------------------------------------------------*\ | |
| ========= | | |
| \\ / 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 | |
| \*---------------------------------------------------------------------------*/ | |
| //#include "uLabel.H" | |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // | |
| namespace Foam | |
| { | |
| /*---------------------------------------------------------------------------*\ | |
| Class labelBits Declaration | |
| \*---------------------------------------------------------------------------*/ | |
| class labelBits | |
| { | |
| // Private Data | |
| label data_; | |
| inline static label pack(const label val, const direction bits) | |
| { | |
| 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); | |
| } | |
| 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 | |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // | |
| // ************************************************************************* // | |