I just went and checked, and the standard gives a default value of "10." for read-base , so decimal by default (I think). It also says: "Notes: Altering the i

I just went and checked, and the standard gives a default value of "10." for read-base , so decimal by default (I think). It also says: "Notes: Altering the input radix can be useful when reading data files in special formats. "