NAME¶

std::ranges::filter_view::sentinel - std::ranges::filter_view::sentinel

Synopsis¶

class /*sentinel*/; (since C++20)
(exposition only*)

The return type of filter_view::end when the underlying view type (V) does not model
common_range.

Member functions¶

constructor constructs a sentinel
(C++20) (public member function)
base returns the underlying sentinel
(C++20) (public member function)

std::ranges::filter_view::sentinel::sentinel

/*sentinel*/() = default; (1) (since C++20)
constexpr explicit /*sentinel*/( filter_view& parent ); (2) (since C++20)

1) Value-initializes end_ via its default member initializer (=
ranges::sentinel_t<V>()).
2) Initializes end_ with ranges::end(parent.base_).

std::ranges::filter_view::sentinel::base

constexpr ranges::sentinel_t<V> base() const; (since C++20)

Equivalent to return end_;.

Non-member functions¶

operator== compares the underlying iterator and the underlying sentinel
(C++20) (function)

operator==(std::ranges::filter_view::iterator, std::ranges::filter_view::sentinel)

friend constexpr bool operator==( const /*iterator*/& x, (since C++20)
const /*sentinel*/& y );

Equivalent to return x.current_ == y.end_;, where current_ is the underlying
iterator wrapped in filter_view::iterator.

The != operator is synthesized from operator==.

This function is not visible to ordinary unqualified or qualified lookup, and can
only be found by argument-dependent lookup when std::ranges::filter_view::sentinel
is an associated class of the arguments.