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// reverse_iterator::operator- example
#include <iostream> // std::cout
#include <iterator> // std::reverse_iterator
#include <vector> // std::vector
int main () {
std::vector<int> myvector;
for (int i=0; i<10; i++) myvector.push_back(i); // myvector: 0 1 2 3 4 5 6 7 8 9
typedef std::vector<int>::iterator iter_type;
std::reverse_iterator<iter_type> rev_iterator = myvector.rend();
rev_iterator -= 4;
std::cout << "rev_iterator now points to: " << *rev_iterator << '\n';
return 0;
}