#include <iostream> #include <set> int main() { // type of the collection typedef std::set<int> IntSet; IntSet coll; // set container for int values /* insert elements from 1 to 6 in arbitray order * - value 1 gets inserted twice */ coll.insert(3); coll.insert(1); coll.insert(5); coll.insert(4); coll.insert(1); coll.insert(6); coll.insert(2); /* print all elements * - iterate over all elements */ IntSet::const_iterator pos; for (pos = coll.begin(); pos != coll.end(); ++pos) { std::cout << *pos << ' '; } std::cout << std::endl; }