erronous user input prevention
I am trying to foolproof a programme i have written and i was just wondering if there is any call from any library that would allow me to stop or detect if a user has entered a different data type than the one specified.
Any help would be greatly appreciated!!
coverd alot, search the boards.
in any event what type are u taking in?
if you want the user to input a letter say 'y' or 'n' for yes or no, you could do something like this:
I hope that works.Code:while (chrOption != 'y' || chrOption != 'n') { cout << "\"'y\" for yes or \"n\" for no\n"; cin >> chrOption; if (chrOption != 'y' || chrOption != 'n') cout << "Please use only \"y\" or \"n\",\n"; }
Why drink and drive when you can smoke and fly?
Do you mean stuff like
double user;
cin >> user;
user enters "asdf";
assert(cin.good()); will abort the program.
if(cin.fail()) // rdstate(), good(), eof() bad() etc
{
cin.clear();
cin.ignore(80, '\n');
}
or similar will try to recover from the error if you're using loops.
