std::ranges::lazy_split_view<V,Pattern>::begin - cppreference.com
From cppreference.com
| (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_)};.
Return value
outer_iterator to the first element.
Example
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] |