Create a null‐initialized iterator. Note that this iterator can be used in the sentinel role for a C++20 standard range. Also note that sentinel default‐constructibility is a requirement of the Standard container‐convertible‐range concept.
Create a null‐initialized iterator. Note that this iterator can be used in the sentinel role for a C++20 standard range. Also note that sentinel default‐constructibility is a requirement of the Standard container‐convertible‐range concept.