`ostream_iterator' undeclared (first use this function)？？

gunguymadman

想用copy的方法把deque的元素输出，结果就是报错 ，大家看看怎么回事？
代码：
[gag@genomic-server cpp]$ more deque.cpp
#include <iostream>;
#include <deque>;
#include <vector>;
#include <string>;
#include <algorithm>;
using namespace std;

int main()
{
        deque<string>; coll;
        vector<int>; a;

        coll.assign( 3 , string("string");
        coll.push_back ( "last string" );
        coll.push_front ( "first string" );

        copy ( coll.begin(),coll.end(),
               ostream_iterator<string>;(cout,"\n" );
        cout << endl;

        deque<string>;::const_iterator first_iter=coll.begin();
        deque<string>;::const_iterator first_iter_end=coll.end();
        for ( ; first_iter != first_iter_end; ++first_iter )
        {
                cout << *first_iter <<endl;
        }

        cout << endl << endl;

        for ( int i =1 ; i<coll.size(); ++i )
        {
                coll="another" + coll;
        }

        deque<string>;::const_iterator second_iter=coll.begin();
        deque<string>;::const_iterator second_iter_end=coll.end();
        for ( ; second_iter != second_iter_end; ++second_iter )
        {
                cout << *second_iter <<endl;
        }

        cout << endl << endl << endl;


        coll.resize(4,"resized string" );

        deque<string>;::const_iterator third_iter=coll.begin();
        deque<string>;::const_iterator third_iter_end=coll.end();
        for ( ; third_iter != third_iter_end; ++third_iter )
        {
                cout << *third_iter <<endl;
        }



}

aXe

请
#include <iterator>;

gunguymadman

啊，惭愧 惭愧啊  ：）