class-of

ToC

Allegro CL

ANSI Common Lisp

7 Objects

7.7 Dictionary of Objects

7.7.39 class-of

Function

Syntax:

class-of object

class

Arguments and Values:

object - an object.

class - a class object.

Description:

Returns the class of which the object is a direct instance.

Examples:

 (class-of 'fred)  #<BUILT-IN-CLASS SYMBOL 610327300>
 (class-of 2/3)  #<BUILT-IN-CLASS RATIO 610326642>
 
 (defclass book () ())  #<STANDARD-CLASS BOOK 33424745>
 (class-of (make-instance 'book))  #<STANDARD-CLASS BOOK 33424745>
 
 (defclass novel (book) ())  #<STANDARD-CLASS NOVEL 33424764>
 (class-of (make-instance 'novel))  #<STANDARD-CLASS NOVEL 33424764>

 (defstruct kons kar kdr)   KONS
 (class-of (make-kons :kar 3 :kdr 4))  #<STRUCTURE-CLASS KONS 250020317>

See Also:

make-instance, type-of

Allegro CL Implementation Details:

None.