reverse_iterator rend() { return reverse_iterator(begin() - 1); } \
const_reverse_iterator rend() const; \
void reserve(size_type n) { base::reserve(n); }; \
reverse_iterator rend() { return reverse_iterator(begin() - 1); } \
const_reverse_iterator rend() const; \
void reserve(size_type n) { base::reserve(n); }; \