Re: problem with a reverse iterator

Victor Bazarov wrote:

> An element of a string is of type 'char'.  As you have found out
> already, the value is controlled by the encoding of the symbol.
> If you want to convert a char that supposedly contains a decimal
> digit into its corresponding number, you need to (a) test to see
> that it's actually a digit (see 'isdigit' function) and (b) if it
> is a digit, subtract '0' from it:
> 
> 
>              if (isdigit(*rit))
>                  cout << position << (*rit - '0') * 2 << endl;
>              else
>                  cerr << position << " - not a digit!!!" << endl;
> 
>>             position++;
>>             }
>>       }
> 
> V

Wow. That works. I do not fully understand why it works, but I wanted to 
thank you for the advice. I'll research it more until I better understand.

Brad