/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | www.openfoam.com
     \\/     M anipulation  |
-------------------------------------------------------------------------------
    Copyright (C) 2011-2016 OpenFOAM Foundation
    Copyright (C) 2020 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/>.

Primitive
    direction

Description
    Direction is an 8-bit unsigned integer type used to represent
    Cartesian directions, components etc.

Note
    If a different typedef is used, "uint8.H" must be modified accordingly.

\*---------------------------------------------------------------------------*/

#ifndef primitives_direction_H
#define primitives_direction_H

#include <cstdint>
#include <iostream>

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

namespace Foam
{

// Forward Declarations
class Istream;
class Ostream;

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

typedef uint8_t direction;

//- Read direction (uint8_t) from stream.
direction readDirection(Istream& is);

Istream& operator>>(Istream& is, direction& val);
Ostream& operator<<(Ostream& os, const direction val);

std::ostream& operator<<(std::ostream& os, const direction val);


// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

} // End namespace Foam

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

#endif

// ************************************************************************* //
