STL 迭代器之配接器

Back_inserter,  front_inserter,  inserter

Insert iterators

     ////Insert Iterators

     list<int> col;

     for(int i = 1; i<=9; i++)

         col.push_back (i);

 

     vector<int> obj;

     copy(col.begin (),col.end (),

         back_inserter(obj));

 

     for(vector<int>::iterator iter = obj.begin (); iter != obj.end (); ++iter)

         cout<<*iter<<' ';

     cout<<endl;

 

     deque<int> deq;

     copy(col.begin (),col.end (),

         front_inserter(deq));

 

     for(deque<int>::iterator iter = deq.begin (); iter != deq.end (); ++iter)

         cout<<*iter<<' ';

     cout<<endl;

 

     set<int> s;

     copy(col.begin (),col.end (),

         inserter(s,s.begin ()));

 

     for(set<int>::iterator iter = s.begin (); iter != s.end (); ++iter)

         cout<<*iter<<' ';

     cout<<endl;

 

 

Stream iterators

////stream_iterator

     vector<string> col;

     copy(istream_iterator<string>(cin),istream_iterator<string>(),

         back_inserter(col));

 

     sort(col.begin (),col.end ());

 

     unique_copy(col.begin (),col.end (),

                   ostream_iterator<string>(cout,"\n"));

Reverse iterators

////reverse_iterator

     vector<int> col;

     for( int i = 1; i<=9; ++i)

         col.push_back (i);

     copy(col.rbegin (), col.rend(),

         ostream_iterator<int>(cout,"\n"));