87 lines
1.6 KiB
C++
87 lines
1.6 KiB
C++
/*
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* This file is part of the Owl Positioning System (OwlPS) project.
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* It is subject to the copyright notice and license terms in the
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* COPYRIGHT.t2t file found in the top-level directory of this
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* distribution and at
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* https://code.lm7.fr/mcy/owlps/src/master/COPYRIGHT.t2t
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* No part of the OwlPS Project, including this file, may be copied,
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* modified, propagated, or distributed except according to the terms
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* contained in the COPYRIGHT.t2t file; the COPYRIGHT.t2t file must be
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* distributed along with this file, either separately or by replacing
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* this notice by the COPYRIGHT.t2t file's contents.
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*/
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#include "direction.hh"
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#include "posexcept.hh"
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/* *** Constructors *** */
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Direction::Direction(const uint_fast8_t source):
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direction(source)
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{
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assert_valid() ;
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}
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/* *** Operations *** */
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inline void Direction::assert_valid() const
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{
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if (! (is_valid() || direction == 0))
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throw bad_direction(direction) ;
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}
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inline bool Direction::is_valid() const
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{
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return direction > 0 && direction <= 4 ;
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}
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/* *** Operators *** */
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Direction& Direction::operator=(const Direction &source)
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{
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direction = source.direction ;
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return *this ;
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}
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Direction& Direction::operator=(const uint_fast8_t source)
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{
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direction = source ;
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assert_valid() ;
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return *this ;
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}
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Direction::operator bool() const
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{
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return is_valid() ;
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}
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Direction::operator std::string() const
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{
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switch (direction)
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{
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case north:
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return "north" ;
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case east:
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return "east" ;
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case south:
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return "south" ;
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case west:
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return "west" ;
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}
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return "Bad direction!" ;
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}
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