24 Iterators library [iterators]

24.5 Iterator adaptors [predef.iterators]

24.5.3 Move iterators [move.iterators]

24.5.3.3 move_iterator operations [move.iter.ops]

24.5.3.3.12 move_iterator::operator[] [move.iter.op.index]

constexpr unspecified operator[](difference_type n) const;

Returns: std::move(current[n]).