117 lines
2.9 KiB
C++
117 lines
2.9 KiB
C++
/*
|
|
* This file is part of the Owl Positioning System (OwlPS).
|
|
* OwlPS is a project of the University of Franche-Comte
|
|
* (Université de Franche-Comté), France.
|
|
*
|
|
* Copyright © Université de Franche-Comté 2007-2012.
|
|
*
|
|
* Corresponding author: Matteo Cypriani <mcy@lm7.fr>
|
|
*
|
|
***********************************************************************
|
|
*
|
|
* This software is governed by the CeCILL license under French law and
|
|
* abiding by the rules of distribution of free software. You can use,
|
|
* modify and/or redistribute the software under the terms of the CeCILL
|
|
* license as circulated by CEA, CNRS and INRIA at the following URL:
|
|
* http://www.cecill.info
|
|
*
|
|
* As a counterpart to the access to the source code and rights to copy,
|
|
* modify and redistribute granted by the license, users are provided
|
|
* only with a limited warranty and the software's authors, the holder
|
|
* of the economic rights, and the successive licensors have only
|
|
* limited liability.
|
|
*
|
|
* In this respect, the user's attention is drawn to the risks
|
|
* associated with loading, using, modifying and/or developing or
|
|
* reproducing the software by the user in light of its specific status
|
|
* of free software, that may mean that it is complicated to manipulate,
|
|
* and that also therefore means that it is reserved for developers and
|
|
* experienced professionals having in-depth computer knowledge. Users
|
|
* are therefore encouraged to load and test the software's suitability
|
|
* as regards their requirements in conditions enabling the security of
|
|
* their systems and/or data to be ensured and, more generally, to use
|
|
* and operate it in the same conditions as regards security.
|
|
*
|
|
* The fact that you are presently reading this means that you have had
|
|
* knowledge of the CeCILL license and that you accept its terms.
|
|
*
|
|
***********************************************************************
|
|
*/
|
|
|
|
|
|
#include "direction.hh"
|
|
#include "posexcept.hh"
|
|
|
|
#include <boost/functional/hash.hpp>
|
|
|
|
|
|
|
|
/* *** Constructors *** */
|
|
|
|
|
|
Direction::Direction(const char source):
|
|
direction(source)
|
|
{
|
|
assert_valid() ;
|
|
}
|
|
|
|
|
|
|
|
/* *** Operations *** */
|
|
|
|
|
|
inline void Direction::assert_valid() const
|
|
{
|
|
if (! (is_valid() || direction == 0))
|
|
throw bad_direction(direction) ;
|
|
}
|
|
|
|
|
|
inline bool Direction::is_valid() const
|
|
{
|
|
return direction > 0 && direction <= 4 ;
|
|
}
|
|
|
|
|
|
|
|
/* *** Operators *** */
|
|
|
|
|
|
Direction& Direction::operator=(const Direction &source)
|
|
{
|
|
direction = source.direction ;
|
|
return *this ;
|
|
}
|
|
|
|
|
|
Direction& Direction::operator=(const char source)
|
|
{
|
|
direction = source ;
|
|
assert_valid() ;
|
|
return *this ;
|
|
}
|
|
|
|
|
|
Direction::operator std::string() const
|
|
{
|
|
switch (direction)
|
|
{
|
|
case north:
|
|
return "north" ;
|
|
case east:
|
|
return "east" ;
|
|
case south:
|
|
return "south" ;
|
|
case west:
|
|
return "west" ;
|
|
}
|
|
return "Bad direction!" ;
|
|
}
|
|
|
|
|
|
|
|
size_t hash_value(const Direction &source)
|
|
{
|
|
return boost::hash_value(source.direction) ;
|
|
}
|