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std::ranges::chunk_view<V>::begin

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< cpp‎ | ranges‎ | chunk view
 
 
Ranges library
Range access
Range conversions
(C++23)

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(until C++23)(C++23)


 
std::ranges::chunk_view
Member functions
chunk_view::begin
Classes for input_ranges
Deduction guides
outer-iterator
outer-iterator::value_type
inner-iterator
 
V models only input_range
constexpr __outer_iterator begin();
(1) (since C++23)
V models forward_range
constexpr auto begin() requires (!__simple_view<V>);
(2) (since C++23)
constexpr auto begin() const requires ranges::forward_range<const V>;
(3) (since C++23)

Returns an iterator to the first element of the chunk_view.

Let base_ denote the underlying view.
1) Available only if V models input_range. Equivalent to:
current_ = ranges::begin(base_);
remainder_ = n_;
return __outer_iterator(*this);
current_, remainder_, and n_ are underlying exposition only data members of chunk_view.
2) Available if V models forward_range. Equivalent to: return iterator<false>(this, ranges::begin(base_));, where iterator is exposition only nested class.
3) Available if V models forward_range. Equivalent to: return iterator<true>(this, ranges::begin(base_));, where iterator is exposition only nested class.

Contents

[edit] Parameters

(none)

[edit] Return value

An iterator to the first element of the chunk_view, as described above.

[edit] Example

[edit] See also

returns an iterator or a sentinel to the end
(public member function) [edit]
returns an iterator to the beginning of a range
(customization point object)[edit]