这是小弟在devc++ 下写的程序：
#include<iostream>
#include<algorithm>
#include<functional>
using namespace std;
int  main()
{
    int a[5]={5,3,3,7,5};
    int b[5];
     reverse(a,a+5);
   copy(a,a+5,ostream_iterator<int>(cout," "));
      return 0;
}   这个程序编译不了，错误出现在 ostream_iterator<int>，提示是`ostream_iterator' undeclared (first  use this function)
  (Each undeclared identifier is reported  only once for each function it appears in.)，但是这个程序在vc6.0下运行正确
求高手指点一二


[ 本帖最后由 zhangtuo08 于 2011-2-10 16:26 编辑 ]

#include<iostream>
#include<algorithm>
#include<functional>
#include <iterator>
using namespace std;
int  main()
{
    int a[5]={5,3,3,7,5};
    int b[5];
     reverse(a,a+5);
   copy(a,a+5,ostream_iterator<int>(cout," "));
      return 0;
}

Thankyou sir!