The following code example is taken from the book
The C++ Standard Library - A Tutorial and Reference, 2nd Edition
by Nicolai M. Josuttis, Addison Wesley Longman, 2012
Copyright © 2012 by Pearson Education, Inc. and Nicolai M. Josuttis
#include <set>
#include <iostream>
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 arbitrary order
// - note that there are two calls of insert() with value 1
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;
}