std::ranges::chunk_view<V>::begin
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< cpp | ranges | chunk view
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
This section is incomplete Reason: no example |
[edit] See also
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) |