The output isExample
inline bool lt_nocase(char c1, char c2) { return tolower(c1) < tolower(c2); }
int main() {
int A1[] = {1, 3, 5, 7, 9, 11};
int A2[] = {1, 1, 2, 3, 5, 8, 13};
char A3[] = {'a', 'b', 'B', 'B', 'f', 'H'};
char A4[] = {'A', 'B', 'b', 'C', 'D', 'F', 'F', 'h', 'h'};
const int N1 = sizeof(A1) / sizeof(int);
const int N2 = sizeof(A2) / sizeof(int);
const int N3 = sizeof(A3);
const int N4 = sizeof(A4);
cout << "Union of A1 and A2: ";
set_union(A1, A1 + N1, A2, A2 + N2, ostream_iterator
cout << endl << "Union of A3 and A4: ";
set_union(A3, A3 + N3, A4, A4 + N4, ostream_iterator
cout << endl;
}
Union of A1 and A2: 1 1 2 3 5 7 8 9 11 13
Union of A3 and A4: a b B B C D f F H h