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- //: C20:UniqueList.cpp
- // From Thinking in C++, 2nd Edition
- // Available at http://www.BruceEckel.com
- // (c) Bruce Eckel 1999
- // Copyright notice in Copyright.txt
- // Testing list's unique() function
- #include <list>
- #include <iostream>
- using namespace std;
-
- int a[] = { 1, 3, 1, 4, 1, 5, 1, 6, 1 };
- const int asz = sizeof a / sizeof *a;
-
- int main() {
- // For output:
- ostream_iterator<int> out(cout, " ");
- list<int> li(a, a + asz);
- li.unique();
- // Oops! No duplicates removed:
- copy(li.begin(), li.end(), out);
- cout << endl;
- // Must sort it first:
- li.sort();
- copy(li.begin(), li.end(), out);
- cout << endl;
- // Now unique() will have an effect:
- li.unique();
- copy(li.begin(), li.end(), out);
- cout << endl;
- } ///:~
-