请教出错在哪里？

#include <iostream>
#include <fstream>
using namespace std;
int main()
{
    int a[10],max,i,order;
    ifstream infile("f1.dat",ios::in|ios::nocreate);
    if(!infile)
    {
        cerr <<"open error!"<<endl;
        exit(1);
    }
    for(i=0;i<10;i++)
    {
        infile >>a[i];
        cout <<a[i]<<" ";
    }
    cout <<endl;
    max=a[0];
    order=0;
    for(i=1;i<10;i++)
    {
        if(a[i]>max)
        {
            max=a[i];
            order=i;
        }
    }
    cout <<"max="<<max<<endl<<"order="<<order<<endl;
    infile.close();
    return 0;
}
出错信息：
--------------------Configuration: 131 - Win32 Debug--------------------
Compiling...
131.cpp
E:\Program Files\Visual.C++.6.0\VC6_green\VC6\MyProjects\13\131\131.cpp(7) : error C2039: 'nocreate' : is not a member of 'basic_ios<char,struct std::char_traits<char> >'
E:\Program Files\Visual.C++.6.0\VC6_green\VC6\MyProjects\13\131\131.cpp(7) : error C2065: 'nocreate' : undeclared identifier
执行 cl.exe 时出错.

131.exe - 1 error(s), 0 warning(s)
我用的是VC6
请教下是出错在哪里了，谢谢