The following code example is taken from the book
The C++ Standard Library - A Tutorial and Reference
by Nicolai M. Josuttis, Addison-Wesley, 1999
© Copyright Nicolai M. Josuttis 1999
#include "algostuff.hpp"
using namespace std;
int main()
{
list<int> coll1;
set<int> coll2;
// fill both collections with some sorted elements
INSERT_ELEMENTS(coll1,1,6);
INSERT_ELEMENTS(coll2,3,8);
PRINT_ELEMENTS(coll1,"coll1: ");
PRINT_ELEMENTS(coll2,"coll2: ");
// print merged sequence
cout << "merged: ";
merge (coll1.begin(), coll1.end(),
coll2.begin(), coll2.end(),
ostream_iterator<int>(cout," "));
cout << endl;
}