fcppt::container::grid::dim<
SizeType,
Size
>
range_dim(
fcppt::container::grid::min<
SizeType,
Size
> const _min,
fcppt::container::grid::sup<
SizeType,
Size
> const _sup
)
{
return
fcppt::container::grid::min_less_sup(
_min,
_sup
)
?
fcppt::math::vector::to_dim(
_sup.get()
-
_min.get()
)
:
fcppt::math::dim::null<
fcppt::container::grid::dim<
SizeType,
Size
>
>()
;
}
fcppt::container::grid::pos<
SizeType,
Size
>
next_position(
fcppt::container::grid::pos<
SizeType,
Size
> const _current,
fcppt::container::grid::min<
SizeType,
Size
> const _min,
fcppt::container::grid::sup<
SizeType,
Size
> const _sup
)
{
typedef
fcppt::container::grid::pos<
SizeType,
Size
>
result_type;
result_type result{
_current
};
++result.x();
return
fcppt::algorithm::fold(
fcppt::math::int_range_count<
Size
-
1u
>{},
result,
[
&_min,
&_sup
](
auto const _index,
result_type _result
)
{
FCPPT_USE(
_index
);
typedef
fcppt::tag_type<
decltype(
_index
)
>
index;
if(
fcppt::math::vector::at<
index::value
>(
_result
)
==
fcppt::math::vector::at<
index::value
>(
_sup.get()
)
)
{
fcppt::math::vector::at<
index::value
>(
_result
) =
fcppt::math::vector::at<
index::value
>(
_min.get()
);
++
fcppt::math::vector::at<
index::value
+
1u
>(
_result
);
}
return
_result;
}
);
}