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

Affected By: None.

Exceptional Situations: None.

See Also:

character (type and function), typep

Notes:

 (characterp object) ==  (typep object 'character)