std::ranges::split_view<V,Pattern>::find_next - cppreference.com

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constexpr ranges::subrange<ranges::iterator_t<V>> /*find_next*/( ranges::iterator_t<V> it );

(exposition only*)

Searches for the next occurrence of pattern in the underlying view. Equivalent to:

auto [b, e] = ranges::search(ranges::subrange(it, ranges::end(base_)), pattern_); if (b != ranges::end(base_) and ranges::empty(pattern_)) { ++b; ++e; } return {b, e};

Parameters

it - an iterator to the position at which to start the search

Return value

A subrange that represents the next position of the pattern, if it was found. An empty subrange otherwise.