LCDK fstream issue

Hello,

I am having a problem reading from a text file using fstream on the LCDK with bios 6.35.04.50.  Two approaches are shown below:

int data[2];

Approach A:

    FILE *fp = fopen("C:\\filename.txt","r"); // read mode
    fscanf(fp,"%d %d",&data[0],&data[1]);
    printf("data = %d, %d\n",data[0],data[1]);
    fclose(fp);

Approach B:

    std::fstream ifs("C:\\filename.txt", std::ios::in);
    ifs >> data[0];
    ifs >> data[1];
    std::cout << "data = " << data[0] << ' ' << data[1] << std::endl;
    ifs.close();

Approach A works fine.  Using Approach A and Approach B (in succession) works fine.  Using Approach B alone produces no output to console.

All necessary header files have been included.

Any help is greatly appreciated. Thank you.