std::ranges::repeat_view<W, Bound>::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 |
|---|---|
constW* 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.
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) |
++current_ ;return*this;.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) |
--current_ ;return*this;.Bound is not std::unreachable_sentinel_t and current_ is non-positive, the behavior is undefined.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) |
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) |
i -= n; return i;.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.
© cppreference.com
Licensed under the Creative Commons Attribution-ShareAlike Unported License v3.0.
https://en.cppreference.com/cpp/ranges/repeat_view/iterator
