|  | ANSI Common Lisp  13 Characters  13.2 Dictionary of Characters 
 
| 13.2.7  characterp | Function |  
 Syntax:
characterp
object
   generalized-boolean 
Arguments and Values:
object - an object.
generalized-boolean - a generalized boolean.
 
Description:
Returns true if object is of type character; otherwise, returns false.
Examples:
 (characterp #\a)  true
 (characterp 'a)  false
 (characterp "a")  false
 (characterp 65.)  false
 (characterp #\Newline)  true
 ;; This next example presupposes an implementation 
 ;; in which #\Rubout is an implementation-defined character.
 (characterp #\Rubout)  true 
See Also:
character (type and function), typep
Notes:
 (characterp object) ==(typep object 'character)
 
Allegro CL Implementation Details:
 None. |