Namespaces
Variants
Actions

std::ranges::lazy_split_view<V,Pattern>::begin

From cppreference.com
 
 
Ranges library
 
 
constexpr auto begin();
(1) (since C++20)
constexpr auto begin() const
    requires ranges::forward_range <V> && ranges::forward_range <const V>;
(2) (since C++20)

Returns an outer_iterator to the first element of the lazy_split_view.

Let base_ be the underlying view and current_ be the underlying caching object (may not be present).

1) Equivalent to
constexpr auto begin()
{
 if constexpr (ranges::forward_range <V>)
 return /*outer_iterator*/</*simple_view*/<V>>{*this, ranges::begin (base_)};
 else
 {
 current_ = ranges::begin (base_);
 return /*outer_iterator*/<false>{*this};
 }
}
2) Equivalent to return /*outer_iterator*/<true>{*this, ranges::begin (base_)};.

[edit] Return value

outer_iterator to the first element.

[edit] Example

This section is incomplete
Reason: no 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]
Retrieved from "https://en.cppreference.com/mwiki/index.php?title=cpp/ranges/lazy_split_view/begin&oldid=179918"

AltStyle によって変換されたページ (->オリジナル) /