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

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.

Parameters

(none).

Return value

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

Example

See also

(C++23)
 returns an iterator or a sentinel to the end
(public member function)
(C++20)
 returns an iterator to the beginning of a range
(customization point object)

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