Thread: function to prompt user to continue entering data or not

how would i begin writing a function that prompts the user to 'Continue entering data (Y/N)? ' it's supposed to keep asking the user until they enter one of the following characters: 'Y', 'y', 'N', or 'n'. my professor suggested a function like bool want_to_continue but i don't understand how it works. thanks. Mark.

Do you mean ask 'Continue entering data(Y/N)?' over and over or just stay with the same question on the same line until a correct entry is recieved?

Code:

#include <iostream>

using std::cout;
using std::cin;

bool ContinueYN();   // Prototype

int main()
{
   bool data;

   data = ContinueYN();

   if(data)
      cout << "Good job: YES";
   else
      cout << "OK: NO";

   return 0;

}

bool ContinueYN()
{
    char c = ' ';

   while( c != 'y' || c != 'Y' || c != 'n' || c != 'N' )
   {
      cout << "Continue? (Y/N): ";	
      cin.get(c);                           // Get character from user
      cin.ignore(1, '\n');	// Skip newline

      if( c == 'y' || c == 'Y' )
         return true;
      else if( c == 'n' || c == 'N' )
         return false;
   }

	return false;	// Will not happen, but is more aesthetically correct

}