detect cin.fail with two inputs

[deathmoon]

I have a function that detects cin.fail..

int n;
    while(true){
        cin >> n;
        if (cin.fail()|| n<=0)
        {
            cout << "Bad input. Please reenter." << endl;
            cin.clear();
            cin.ignore(1000000,'\n');
        }
        else break;
    }
    return n;

But this only works for one input, so is there any way to accept two input and detect error?
The two input is an array with a[row][col], which I want to detect cin.fail for row and col

[Denis]

std::cin, std::cout, std::cerr are global objects that presented in a single instance

[deathmoon]

Solved by using my own method. Topic closed, thanks for reply.