9 Iterators library [iterators]

9.7 Iterator adaptors [iterators.predef]

9.7.1 Reverse iterators [iterators.reverse]

9.7.1.2 reverse_iterator operations [reverse.iter.ops]

9.7.1.2.20 operator+ [reverse.iter.opsum]

template <RandomAccessIterator I> constexpr reverse_iterator<I> operator+( difference_type_t<I> n, const reverse_iterator<I>& x);

1

Effects: Equivalent to: return reverse_iterator<I>(x.current - n);