operator==(ranges::zip_view::iterator, ranges::zip_view::sentinel)

 

C++

Compiler support

Freestanding and hosted

Language

Standard library

Standard library headers

Named requirements

Feature test macros (C++20)

Language support library

Concepts library (C++20)

Metaprogramming library (C++11)

Diagnostics library

General utilities library

Strings library

Containers library

Iterators library

Ranges library (C++20)

Algorithms library

Numerics library

Localizations library

Input/output library

Filesystem library (C++17)

Regular expressions library (C++11)

Concurrency support library (C++11)

Execution support library (C++26)

Technical specifications

Symbols index

External libraries

 

Ranges library

Range access begin cbegin   end cend rbegin crbegin   rend crend size ssize   data cdata empty

Range conversions std::from_range_t std::from_range (C++23)(C++23)     to (C++23)

Dangling iterator handling dangling borrowed_iterator_t borrowed_subrange_t

Range primitives
range_size_trange_difference_trange_value_t elements_of (C++23)	iterator_tconst_iterator_tsentinel_tconst_sentinel_t (C++23)(C++23)	range_reference_trange_const_reference_trange_rvalue_reference_trange_common_reference_t (C++23)

Range concepts
range borrowed_range    sized_range	common_range view viewable_range	input_range output_range forward_range	bidirectional_range    random_access_range contiguous_range	constant_range (C++23)

Views
view_interface	subrange

Range factories
empty_viewviews::empty	single_viewviews::single	basic_istream_viewviews::istream	iota_viewviews::iota	repeat_viewviews::repeat (C++23)(C++23)

Range adaptors
views::all_tviews::all ref_view owning_view as_rvalue_viewviews::as_rvalue (C++23)(C++23)   filter_viewviews::filter transform_viewviews::transform take_viewviews::take take_while_viewviews::take_while concat_viewviews::concat (C++26)(C++26)	drop_viewviews::drop drop_while_viewviews::drop_while join_viewviews::join join_with_viewviews::join_with (C++23)(C++23)   lazy_split_viewviews::lazy_split split_viewviews::split views::counted common_viewviews::common	reverse_viewviews::reverse as_const_viewviews::as_const (C++23)(C++23) elements_viewviews::elements keys_viewviews::keys values_viewviews::values enumerate_viewviews::enumerate (C++23)(C++23) zip_viewviews::zip (C++23)(C++23) zip_transform_viewviews::zip_transform (C++23)(C++23)	adjacent_viewviews::adjacent (C++23)(C++23) views::pairwise (C++23) adjacent_transform_viewviews::adjacent_transform (C++23)(C++23) views::pairwise_transform (C++23) chunk_viewviews::chunk (C++23)(C++23) slide_viewviews::slide (C++23)(C++23) chunk_by_viewviews::chunk_by (C++23)(C++23) stride_viewviews::stride (C++23)(C++23) cartesian_product_viewviews::cartesian_product (C++23)(C++23)

Range generators std::generator (C++23)

Range adaptor closure objects range_adaptor_closure (C++23)

Range adaptor objects

Helper items
copyable-box movable-box (until C++23)  (C++23)	simple-view non-propagating-cache

 

std::ranges::zip_view

Member functions

zip_view::zip_view

zip_view::begin

zip_view::end

zip_view::size

Deduction guides

Iterator

Member functions

zip_view::iterator::iterator

zip_view::iterator::operator*

zip_view::iterator::operator[]

zip_view::iterator::operator++ zip_view::iterator::operator++(int) zip_view::iterator::operator-- zip_view::iterator::operator--(int) zip_view::iterator::operator+= zip_view::iterator::operator-=

Non-member functions

operator==(zip_view::iterator) operator<(zip_view::iterator) operator>(zip_view::iterator) operator<=(zip_view::iterator) operator>=(zip_view::iterator) operator<=>(zip_view::iterator)

operator+(zip_view::iterator) operator-(zip_view::iterator)

iter_move(zip_view::iterator)

iter_swap(zip_view::iterator)

Sentinel

Member functions

zip_view::sentinel::sentinel

Non-member functions

operator==(zip_view::iterator,zip_view::sentinel)

operator-(zip_view::iterator,zip_view::sentinel)

 

template< bool OtherConst >     requires (std::sentinel_for<         ranges::sentinel_t</*maybe-const*/<Const, Views>>,         ranges::iterator_t</*maybe-const*/<OtherConst, Views>>> && ...) friend constexpr bool operator==( const /*iterator*/<OtherConst>& x,                                   const /*sentinel*/& y  );		(since C++23)

Compares the underlying tuple of iterators of x with the underlying tuple of sentinels of y.

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

The != operator is synthesized from operator==.

Parameters

x	-	iterator to compare
y	-	sentinel to compare

Return value

Let x.current_ denote the underlying tuple of iterators, and y.end_ denote the underlying tuple of sentinels.

Returns

• true if at least one underlying iterator, obtained by expression equivalent to std::get<i>(x.current_), evaluates equal (using an appropriate operator==) to some underlying sentinel, obtained by expression equivalent to std::get<i>(y.end_), for some index i in ranges 0 <= i < sizeof...(Views),
• false otherwise.