namespace std::ranges {
template<view V>
requires input_range<V>
class as_rvalue_view : public view_interface<as_rvalue_view<V>> {
V base_ = V();
public:
as_rvalue_view() requires default_initializable<V> = default;
constexpr explicit as_rvalue_view(V base);
constexpr V base() const & requires copy_constructible<V> { return base_; }
constexpr V base() && { return std::move(base_); }
constexpr auto begin() requires (!simple-view<V>)
{ return move_iterator(ranges::begin(base_)); }
constexpr auto begin() const requires range<const V>
{ return move_iterator(ranges::begin(base_)); }
constexpr auto end() requires (!simple-view<V>) {
if constexpr (common_range<V>) {
return move_iterator(ranges::end(base_));
} else {
return move_sentinel(ranges::end(base_));
}
}
constexpr auto end() const requires range<const V> {
if constexpr (common_range<const V>) {
return move_iterator(ranges::end(base_));
} else {
return move_sentinel(ranges::end(base_));
}
}
constexpr auto size() requires sized_range<V> { return ranges::size(base_); }
constexpr auto size() const requires sized_range<const V> { return ranges::size(base_); }
};
template<class R>
as_rvalue_view(R&&) -> as_rvalue_view<views::all_t<R>>;
}
constexpr explicit as_rvalue_view(V base);
Effects: Initializes
base_ with
std::move(base).