Nyquist / XLISP 2.0  - 
Contents |
Tutorials |
Examples |
Reference
objectp
  | Type: | - | predicate function (subr) | 
  | Source: | - | xlbfun.c | 
Syntax
- (objectp expr)
- expr - the expression to check
 returns -  T  if the expression
is an object, NIL otherwise
Description
The 'objectp' predicate function checks if the 'expr' is an object.
 T  is returned if 'expr' is
an object, NIL is returned otherwise.
Examples
(objectp object)   ; returns T
(objectp class)    ; returns T
(objectp NIL)      ; returns NIL
(objectp '(a b))   ; returns NIL
See the
objectp
predicate function in the XLISP 2.0 manual.
  Back to Top
Nyquist / XLISP 2.0  - 
Contents |
Tutorials |
Examples |
Reference