inline constexpr
typename SIDIM_STD::common_type<TDistance1, TDistance2>::type
operator-(const position<TTag, TDistance1>& x,
const position<TTag, TDistance2>& y)
{
return x.distance_from_origin() - y.distance_from_origin();
}
inline constexpr
bool
operator>=(const position<TTag, TDistance1>& x,
const position<TTag, TDistance2>& y)
{
return x.distance_from_origin() >= y.distance_from_origin();
}
inline constexpr
position<TTag, TToDistance>
position_cast(const position<TTag, TFromDistance>& pos)
{
return position<TTag, TToDistance>(distance_cast<TToDistance>(
pos.distance_from_origin()));
}
inline constexpr
position<TTag,
typename SIDIM_STD::common_type<TDistance1, distance<TRep2, TInterval2> >::type>
operator-(const position<TTag, TDistance1>& pos,
const distance<TRep2, TInterval2>& d)
{
using common_distance = typename SIDIM_STD::common_type<
TDistance1, distance<TRep2, TInterval2> >::type;
return position<TTag, common_distance>(pos.distance_from_origin() - d);
}
constexpr
position(const position<tag, TDistance2>& pos)
: m_distance(pos.distance_from_origin())
{
}