Computer Science A - peek() - 2/9/00

peek - Will check the next item in the input stream without actually
       executing a formal read (cin or infile).

Example:
    while(cin.peek() != '\n')
    {
        cin>>num;
        cout<<num<<endl;
    }

If the input was: 7   6   42   5

And then after the 5 the enter key (\n), the loop would stop
executing because the while loop condition was met.

What is the output of the above loop?

Be careful of the proper input of:
7   6   42   5   ^   would cause problems. Loop would continue.