std::ranges::views::empty, std::ranges::empty_view

范围转换
std::from_range_t std::from_range (C++23)(C++23)
to (C++23)

range_size_trange_difference_trange_value_t
elements_of (C++23)

(C++23)(C++23)

(C++23)

(C++23)(C++23)

views::all_tviews::all
as_rvalue_viewviews::as_rvalue (C++23)(C++23)
filter_viewviews::filter
transform_viewviews::transform
take_viewviews::take
take_while_viewviews::take_while
common_viewviews::common
views::counted
as_input_viewviews::as_input (C++26)(C++26)

ref_view
drop_viewviews::drop
drop_while_viewviews::drop_while
lazy_split_viewviews::lazy_split
split_viewviews::split
join_viewviews::join
join_with_viewviews::join_with (C++23)(C++23)
concat_viewviews::concat (C++26)(C++26)