迭代器问题

#include<algorithm>
#include<iostream>
#include<iterator>

template<typename Iter>
void print(Iter first,Iter last,const char* nm="", const char* seq="\n",std::ostream& os=std::cout){
    if(nm!=0&&nm!='\0')
    os<<nm<<":"<<seq;
    typedef typename iterator_traits<Iter>::value_type T;
    copy(first,last,ostream_iterator<T>(cout,seq));
    os<<std::endl;
}

--------------------配置: mingw5 - LIB Release, 编译器类型: MinGW--------------------

检查文件依赖性...
正在编译 C:\Users\zjy\Documents\C-Free\Temp\未命名15.cpp...
[Error] C:\Users\zjy\Documents\C-Free\Temp\未命名15.cpp:9: error: expected nested-name-specifier before "iterator_traits"
[Error] C:\Users\zjy\Documents\C-Free\Temp\未命名15.cpp:9: error: expected initializer before '<' token
[Error] C:\Users\zjy\Documents\C-Free\Temp\未命名15.cpp:10: error: `ostream_iterator' was not declared in this scope
[Error] C:\Users\zjy\Documents\C-Free\Temp\未命名15.cpp:10: error: `T' was not declared in this scope
[Error] C:\Users\zjy\Documents\C-Free\Temp\未命名15.cpp:10: error: `cout' was not declared in this scope
构建中止 未命名15: 5 个错误

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