InfoProxy.H

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    Copyright (C) 2011 OpenFOAM Foundation
    Copyright (C) 2023 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::InfoProxy
 
Description
    A helper class for outputting values to Ostream
 
\*---------------------------------------------------------------------------*/
 
#ifndef Foam_InfoProxy_H
#define Foam_InfoProxy_H
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// Forward Declarations
class Ostream;
 
template<class T> class InfoProxy;
template<class T> Ostream& operator<<(Ostream&, const InfoProxy<T>&);
 
 
/*---------------------------------------------------------------------------*\
                           Class InfoProxy Declaration
\*---------------------------------------------------------------------------*/
 
template<class T>
class InfoProxy
{
public:
 
    // Data
 
        //- The captured object reference
        const T& t_;
 
 
    // Constructors
 
        //- Implicit construct from object reference
        InfoProxy(const T& item) noexcept
        :
            t_(item)
        {}
 
 
    // Member Functions
 
        //- Return const reference to the object
        const T& operator*() const noexcept { return t_; }
 
        // // TBD: Dereference const pointer to the object
        // const T* operator->() const noexcept { return &t_; }
 
 
    // Output Functions
 
        //- Output information to stream
        friend Ostream& operator<< <T> (Ostream&, const InfoProxy<T>&);
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //