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SET_UNIN.CPP
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1997-02-28
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892b
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33 lines
#include <algorithm>
#include <set>
using namespace std;
int main ()
{
//
// Initialize some sets.
//
int a2[6] = {2,4,6,8,10,12};
int a3[4] = {3,5,7,8};
set<int, less<int> > even(a2+0, a2+6), result, smalll(a3+0, a3+4);
//
// Create an insert_iterator for result.
//
insert_iterator<set<int, less<int> > > res_ins(result, result.begin());
//
// Demonstrate set_union.
//
cout << "The result of:" << endl << "{";
copy(smalll.begin(),smalll.end(), ostream_iterator<int>(cout," "));
cout << "} union {";
copy(even.begin(),even.end(), ostream_iterator<int>(cout," "));
cout << "} =" << endl << "{";
set_union(smalll.begin(), smalll.end(), even.begin(), even.end(), res_ins);
copy(result.begin(),result.end(), ostream_iterator<int>(cout," "));
cout << "}" << endl << endl;
return 0;
}