std::ranges::repeat_view<W, Bound>::iterator

 

C++

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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::repeat_view

Member functions

repeat_view::repeat_view

repeat_view::begin

repeat_view::end

repeat_view::size

Deduction guides

Iterator

Member functions

repeat_view::iterator::iterator

repeat_view::iterator::operator*

repeat_view::iterator::operator[]

repeat_view::iterator::operator++ repeat_view::iterator::operator++(int)

repeat_view::iterator::operator-- repeat_view::iterator::operator--(int)

repeat_view::iterator::operator+=

repeat_view::iterator::operator-=

Non-member functions

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

operator+(repeat_view::iterator)

operator-(repeat_view::iterator)

 

struct /*iterator*/;		(exposition only*)

ranges::repeat_view<W, Bound>::iterator is the type of the iterators returned by begin() and end() of ranges::repeat_view<W, Bound>.

Nested types

Exposition-only types
Type	Definition
index-type	std::conditional_t<std::same_as<Bound, std::unreachable_sentinel_t>,                    std::ptrdiff_t, Bound> (exposition-only member type*)
Iterator property types
Type	Definition
iterator_concept	std::random_access_iterator_tag
iterator_category	std::random_access_iterator_tag
value_type	W
difference_type	std::conditional_t<is-signed-integer-like <index-type >,                    index-type , iota-diff-t <index-type >>

Data members

Member	Definition
const W* value_	a pointer to the value to repeat (exposition-only member object*)
index-type current_	the current position (exposition-only member object*)

Member functions

std::ranges::repeat_view::iterator::iterator

/*iterator*/() = default;	(1)	(since C++23)
constexpr explicit /*iterator*/     ( const W* value, /*index-type*/ b = /*index-type*/() );	(2)	(since C++23) (exposition only*)

Constructs an iterator. Overload (2) is called by begin() and end() of ranges::repeat_view.

1) Initializes value_ with nullptr and value-initializes current_ .

2) Initializes value_ with value and current_ with b.

If Bound is not std::unreachable_sentinel_t and b is negative, the behavior is undefined.

std::ranges::repeat_view::iterator::operator*

constexpr const W& operator*() const noexcept;		(since C++23)

Returns *value_.

std::ranges::repeat_view::iterator::operator[]

constexpr const W& operator[]( difference_type n ) const noexcept;		(since C++23)

Returns *(*this + n).

std::ranges::repeat_view::iterator::operator++

constexpr /*iterator*/& operator++();	(1)	(since C++23)
constexpr void operator++(int);	(2)	(since C++23)

1) Equivalent to ++current_ ; return *this;.

2) Equivalent to auto tmp = *this; ++*this; return tmp;.

std::ranges::repeat_view::iterator::operator--

constexpr /*iterator*/& operator--();	(1)	(since C++23)
constexpr /*iterator*/ operator--(int);	(2)	(since C++23)

1) Equivalent to --current_ ; return *this;.

If Bound is not std::unreachable_sentinel_t and current_ is non-positive, the behavior is undefined.

2) Equivalent to auto tmp = *this; --*this; return tmp;.

std::ranges::repeat_view::iterator::operator+=

constexpr /*iterator*/& operator+=( difference_type n );		(since C++23)

Equivalent to current_ += n; return *this;.

If Bound is not std::unreachable_sentinel_t and current_ + n is negative, the behavior is undefined.

std::ranges::repeat_view::iterator::operator-=

constexpr /*iterator*/& operator-=( difference_type n );		(since C++23)

Equivalent to current_ -= n; return *this;.

If Bound is not std::unreachable_sentinel_t and current_ - n is negative, the behavior is undefined.

Non-member functions

operator==, <=>(std::ranges::repeat_view::iterator)

friend constexpr bool operator==     ( const /*iterator*/& x, const /*iterator*/& y );	(1)	(since C++23)
friend constexpr auto operator<=>     ( const /*iterator*/& x, const /*iterator*/& y );	(2)	(since C++23)

1) Returns x.current_ == y.current_.

2) Returns x.current_ <=> y.current_.

The != operator is synthesized from operator==.

These functions are not visible to ordinary unqualified or qualified lookup, and can only be found by argument-dependent lookup when iterator is an associated class of the arguments.

operator+(std::ranges::repeat_view::iterator)

friend constexpr /*iterator*/ operator+     ( /*iterator*/ i, difference_type n );	(1)	(since C++23)
friend constexpr /*iterator*/ operator+     ( difference_type n, /*iterator*/ i );	(2)	(since C++23)

Equivalent to i += n; return i;.

These functions are not visible to ordinary unqualified or qualified lookup, and can only be found by argument-dependent lookup when iterator is an associated class of the arguments.

operator-(std::ranges::repeat_view::iterator)

friend constexpr /*iterator*/ operator-     ( /*iterator*/ i, difference_type n );	(1)	(since C++23)
friend constexpr difference_type operator-     ( const /*iterator*/& x, const /*iterator*/& y );	(2)	(since C++23)

1) Equivalent to i -= n; return i;.

2) Returns static_cast<difference_type>(x.current_ ) -
    static_cast<difference_type>(y.current_ ).

These functions are not visible to ordinary unqualified or qualified lookup, and can only be found by argument-dependent lookup when iterator is an associated class of the arguments.

Notes

iterator is always random_access_iterator.