Question

Hey i want to stop the user from entering integers when i ask the user to input a name. I have achieved this for an integer and a char. Can anyone help me adapt my code for a string.

int getNum()
{
    int num;
    std::cout << "\nWhat is your age? ";
    while (!(std::cin >> num))
    {
        // reset the status of the stream
        std::cin.clear();
        // ignore remaining characters in the stream
        std::cin.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
        std::cout << "Enter an *integer*: ";
    }
    std::cout << "You entered: " << num << std::endl;
    return num;
}

char getChar(string q)
{
    char input;
    do
    {
        cout << q.c_str() << endl;
        cin >> input;
    }
    while(!isalpha(input));
    return input;
}

Answer 1

string q = "This is a test123";

for(string::iterator i = q.begin(); i != q.end(); i++)
{
    if((*i < 'A' || *i > 'z') && (*i != ' '))
    {
        return false;
    }
}

would also be an option, if you allow for spaces and other characters.

Edit: updated for checking a single char:

char c;
bool finished = false;
printf("Please enter your sex, M/F?\n");
while(!finished)
{
    cin >> c;
    if(!(c == 'm' || c == 'M' || c== 'f' || c=='F'))
    {
        printf("Please try again...\n");
    }
    else
    {
        finished = true;
    }
}

Note that c is only input, char by char, when Enter is pressed, before that the line feed does not happen.