lispdoc - results for digit-char

(digit-char weight &optional (radix 10))
Function: All arguments must be integers. Returns a character object that represents a digit of the given weight in the specified radix. Returns NIL if no such character exists.
 Mentioned in:
CLtL2 - 13.4. Character Conversions
HyperSpec - Function DIGIT-CHAR
(digit-char-p char &optional (radix 10))
Function: If char is a digit in the specified radix, returns the fixnum for which that digit stands, else returns NIL.
 Mentioned in:
CLtL2 - 13.2. Predicates on Characters
CLtL2 - 13.4. Character Conversions
HyperSpec - Function DIGIT-CHAR-P