constexpr auto begin();
(1) (since C++23)
constexpr auto begin() const
  requires ranges::input_range<const V> &&
           ranges::forward_range<const Pattern> &&
           std::is_reference_v<ranges::range_reference_t<const V>>;
(2) (since C++23)

Returns an iterator to the first element of the join_with_view.

Let base_ denote the underlying view:

1) Equivalent to return /*iterator*/<true>{*this, ranges::begin(base_)}; if V and Pattern each model __SimpleView and ranges::range_reference_t<V> is a reference type; otherwise equivalent to return /*iterator*/<false>{*this, ranges::begin(base_)};.
2) Equivalent to return /*iterator*/<true>{*this, ranges::begin(base_)};.



Return value

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


See also

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

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