91 lines
1.6 KiB
C++
91 lines
1.6 KiB
C++
/*
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* This file is part of the Owl Positioning System (OwlPS).
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* OwlPS is a project of the University of Franche-Comté
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* (Université de Franche-Comté), France.
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*/
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#ifndef _OWLPS_POSITIONING_DIRECTION_HH_
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#define _OWLPS_POSITIONING_DIRECTION_HH_
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#include <string>
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/// \brief Represents a direction in which a mobile is when it sends a
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/// CalibrationRequest
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class Direction
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{
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protected:
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char direction ;
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void assert_valid(void) const ;
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bool is_valid(void) const ;
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public:
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enum {north = 1, east, south, west} ;
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Direction(void): direction(0) {}
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Direction(const char source) ;
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Direction(const Direction &source): direction(source.direction) {}
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/** @name Accessors */
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//@{
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void clear(void) ;
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//@}
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/** @name Operators */
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//@{
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Direction& operator=(const Direction &source) ;
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Direction& operator=(const char source) ;
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bool operator==(const Direction &source) const ;
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bool operator!=(const Direction &source) const ;
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operator bool(void) const ;
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operator int(void) const ;
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operator std::string(void) const ;
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//@}
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// Hashes a Direction
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friend size_t hash_value(const Direction &source) ;
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} ;
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/* *** Accessors *** */
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inline void Direction::clear()
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{
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direction = 0 ;
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}
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/* *** Operators *** */
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inline bool Direction::operator==(const Direction &source) const
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{
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return direction == source.direction ;
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}
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inline bool Direction::operator!=(const Direction &source) const
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{
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return !(*this == source) ;
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}
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inline Direction::operator bool() const
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{
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return is_valid() ;
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}
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inline Direction::operator int() const
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{
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return static_cast<int>(direction) ;
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}
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#endif // _OWLPS_POSITIONING_DIRECTION_HH_
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