Thread: Linked Lists

Looks like your hosing the input when you enter bad input for an integer. Try making sure the user gave correct inputting by using

Code:

if( std::cin.fail( ) ) // Bad Input 
{
  std::cin.clear( ) // Clear error bits
  // Do Something...
  std::cin.ignore( 80, '\n' ); // ignore excess characters
}

You can use something like that to help the bad input. Basically you if you enter something like "aasdaf" when its expecting an integer, next time it loops around something will already be in the buffer so it'll skip over the cin statement.

As far as your concern about delete goes you should be using that to free your linked list when you are finished. Go through your list carefully with the use of temp pointers and free each node that you allocated until you reach the end.

Also, your logic may be a little off. Try doing this with the debugger. First display your empty list. Then try to add something to it. You will try to dereference a null pointer. Bad Times!

I'm not sure I understand the std::cin.ignore() function, but what you showed me did work, thanks (: