Arguments and Values:

x --- an object.

y --- an object.

Returns: the-same-p --- a generalized boolean.

Description:

If at least one of the objects x and y is not an Objective-C instance wrapper, objc-eql behaves the same as eql.

For Objective-C instance wrappers, objc-eql compares the pointers represented by these instances. If the pointers are pointer-eq (see the CFFI manual for details), objc-eql returns true. Otherwise, it returns false.

Examples:

(objc-eql (find-objc-class 'ns-string)  
          (find-objc-class 'ns-string))  
 ;=> T  
  
(objc-eql (find-objc-class 'ns-string)  
          (find-objc-class 'ns-object))  
 ;=> NIL  
  
(setq greeting1 (invoke (find-objc-class 'ns-string)  
                        :string-with-u-t-f-8-string "Mulk."))  
 ;=> #<GSCBufferString `Mulk.' {8109A38}>  
  
(setq greeting2 (invoke (find-objc-class 'ns-string)  
                        :string-with-u-t-f-8-string "Mulk."))  
 ;=> #<GSCBufferString `Mulk.' {8109DB0}>  
  
(objc-equal greeting1 greeting2)  
 ;=> T  
  
(objc-eql greeting1 greeting2)  
 ;=> NIL  
  
(objc-equal greeting1 greeting1)  
 ;=> T  
  
(objc-eql greeting1 greeting1)  
 ;=> T  
 

See Also:

objc-equal