NAME¶

std::ranges::enumerate_view::end - std::ranges::enumerate_view::end

Synopsis¶

constexpr auto end() requires (!__simple_view<V>); (1) (since C++23)
constexpr auto end() const requires (2) (since C++23)
/*range-with-movable-references*/<const V>;

Returns an iterator or a sentinel that compares equal to the end iterator of the
enumerate_view.

Let base_ denote the underlying view.

1) Equivalent to:

if constexpr (ranges::forward_range<V> and
ranges::common_range<V> and
ranges::sized_range<V>)
return /*iterator*/<false>(ranges::end(base_), ranges::distance(base_));
else
return /*sentinel*/<false>(ranges::end(base_));

2) Equivalent to:

if constexpr (ranges::forward_range<const V> and
ranges::common_range<const V> and
ranges::sized_range<const V>)
return /*iterator*/<true>(ranges::end(base_), ranges::distance(base_));
else
return /*sentinel*/<true>(ranges::end(base_));

Parameters¶

(none)

Return value¶

An iterator or a sentinel representing the end of the enumerate_view, as described
above.

Example¶

This section is incomplete
Reason: no example

Defect reports

The following behavior-changing defect reports were applied retroactively to
previously published C++ standards.

DR Applied to Behavior as published Correct behavior
ranges::distance may invoke UB for sentinel type is returned
LWG 3919 C++23 sized common for such ranges
non-forward underlying ranges

See also¶

begin returns an iterator to the beginning
(C++23) (public member function)
ranges::end returns a sentinel indicating the end of a range
(C++20) (customization point object)

Category:¶

* Todo no example