C++ getline method not working

Question

I\'m sorry but I\'m quite new to C++ but not programming in general. So I tried to make a simple encryption/decryption. However when I added the modification to my previous code

Answer 1

Use :

cin.ignore ( std::numeric_limits::max(), '\n' );

to eat newlines from previous input std::cin >> op;

header -

Other way would be :

    while (std::getline(std::cin, str)) //don't use string
    if (str != "")
    {
       //Something good received

        break;
    }