Thread: (char)09 not valid?

ok, if I do the following, I get the following:
for some reason the compiler thinks that 08 and 09 are octal values. Anything decimal 10+ is fine.

Code:

outp<<(char)09

gives

invalid digit "9" in octal constant|

How do I tell the compiler it's a decimal?

If I do this, it is fine!

Code:

int main()
{
      for ( int x = 0; x < 20; x++ ) {
          cout<< x <<": "<< (char)x <<"\n";
          //Note the use of the int version of x to
          // output a number and the use of (char) to
          // typecast the x into a character
          // which outputs the ASCII character that
          // corresponds to the current number
      }
  cin.get();
    return 0;
}