inline bool is_mergeable (const range<iter1_t> &src1,
const range<iter2_t> &src2, compare comp )
{ //---------------------------- begin ------------------------------------
typedef typename iterator_traits<iter1_t>::value_type type1 ;
typedef typename iterator_traits<iter2_t>::value_type type2 ;
static_assert ( std::is_same<type1, type2>::value,
"Incompatible iterators\n");
//---------------------------- begin --------------------------------------
return comp ( *(src2.front()), *(src1.back()));
};
inline range<entity<Segments ... >> join(range<entity<Segments ... >> const & one, range<entity<Segments ... >> const & two) noexcept
{
return { std::min(one.offset(), two.offset()), (std::max(one.back(), two.back()) + 1) - std::min(one.offset(), two.offset()) };
}
inline type::bool_t intersects(range<entity<Segments ... >> const & one, range<entity<Segments ... >> const & two) noexcept
{
return (one.front() <= two.back()) && (two.front() <= one.back());
}
inline range<entity<Segments ... >> take_last(range<entity<Segments ... >> const & object, type::index_t const count) noexcept
{
return { object.back() - ((count % (object.length() + 1)) - 1), count % (object.length() + 1) };
}