objectMap.H

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-------------------------------------------------------------------------------
    Copyright (C) 2011 OpenFOAM Foundation
    Copyright (C) 2024 OpenCFD Ltd.
-------------------------------------------------------------------------------
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::objectMap
 
Description
    An objectMap is a pair of labels defining the mapping of an object from
    another object, e.g. a cell mapped from a point.
 
SourceFiles
    objectMapI.H
 
\*---------------------------------------------------------------------------*/
 
#ifndef Foam_objectMap_H
#define Foam_objectMap_H
 
#include "List.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// Forward Declarations
class objectMap;
inline bool operator==(const objectMap& a, const objectMap& b);
inline bool operator!=(const objectMap& a, const objectMap& b);
inline Ostream& operator<<(Ostream&, const objectMap&);
inline Istream& operator>>(Istream&, objectMap&);
 
 
/*---------------------------------------------------------------------------*\
                          Class objectMap Declaration
\*---------------------------------------------------------------------------*/
 
class objectMap
{
    // Private Data
 
        //- Object index
        label index_;
 
        //- Master object indices
        labelList objects_;
 
 
public:
 
    // Constructors
 
        //- Default construct, with index=-1 and no objects
        objectMap() noexcept : index_(-1) {}
 
        //- Copy construct from components
        inline objectMap(const label index, const labelUList& master);
 
        //- Move construct from components
        inline objectMap(const label index, labelList&& master);
 
        //- Construct from Istream
        inline explicit objectMap(Istream& is);
 
 
    // Member Functions
 
        //- True if there are no objects
        bool empty() const noexcept { return objects_.empty(); }
 
        //- The number of objects
        label size() const noexcept { return objects_.size(); }
 
        //- The object index
        label& index() noexcept { return index_; }
 
        //- The object index
        label index() const noexcept { return index_; }
 
        //- The master object indices
        labelList& masterObjects() noexcept { return objects_; }
 
        //- The master object indices
        const labelList& masterObjects() const noexcept { return objects_; }
 
 
    // Friend Operators
 
        friend bool operator==(const objectMap& a, const objectMap& b);
        friend bool operator!=(const objectMap& a, const objectMap& b);
 
 
    // IOstream Operators
 
        friend Ostream& operator<<(Ostream&, const objectMap&);
        friend Istream& operator>>(Istream&, objectMap&);
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#include "objectMapI.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //