Iterators
| begin, cbegin | Returns an iterator to the beginning |
| end, cend | Returns an iterator to the end |
| rbegin, crbegin | Returns a reverse iterator to the beginning |
| end, cend | Returns a reverse iterator to the end |
| begin, cbegin | Returns an iterator to the beginning |
| end, cend | Returns an iterator to the end |
| rbegin, crbegin | Returns a reverse iterator to the beginning |
| end, cend | Returns a reverse iterator to the end |