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]

24.5.3.3.11 move_iterator::operator-= [move.iter.op.-=]

constexpr move_iterator& operator-=(difference_type n);

Effects: As if by: current -= n;

Returns: *this.