bulletproofing question

The cin command is problematic, because there is no
checking for variable type. If you specify an integer and
the user inputs a character, you get garbage. The
solution seems to be to use gets() and then atoi(), but
I'm not sure how to do that with two-digit numbers. Any
suggestions?

For a simple yes/no or menu input function, it seems to be
enough to define a char array of no specified length,
gets() the char array, then do something like this:

while (strlen(charArray) > 2 || charArray[0] != 'y'
&& charArray[0] != 'n')
{
cout << "Pl

Search the board, this was from a day or two ago.

http://www.cprogramming.com/cboard/s...threadid=11365

Well you can use cin but after accepting it . You can get the ascii value of it and determine whether it is a number or not. This way you can eliminate everything else other than that is numeric.

or perhaps you could use scanf or just DIY formatting [which i don't recommend, but it is an option in case you have special formatting]

in the MSVC cin class, I use:

int x;
cin>>x;
if(cin.fail()){return 0; /* or make a loop or some other stuff */}