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ANSI Common Lisp  5 Data and Control Flow 5.3 Dictionary of Data and Control Flow
- Syntax:
-
funcall
function &rest args
 {result}*
- Arguments and Values:
-
function - a function designator.
args - arguments to the function.
results - the values returned by the function.
- Description:
-
funcall applies function to args.
If function is a symbol,
it is coerced to a function as if by
finding its functional value in the global environment.
- Examples:
-
(funcall #'+ 1 2 3) 6
(funcall 'car '(1 2 3)) 1
(funcall 'position 1 '(1 2 3 2 1) :start 1) 4
(cons 1 2) (1 . 2)
(flet ((cons (x y) `(kons ,x ,y)))
(let ((cons (symbol-function '+)))
(funcall #'cons
(funcall 'cons 1 2)
(funcall cons 1 2))))
(KONS (1 . 2) 3)
- Exceptional Situations:
-
An error of type undefined-function should be signaled if function
is a symbol that does not have a global definition as a function
or that has a global definition as a macro or a special operator.
- See Also:
-
apply, function, Section 3.1 Evaluation
- Notes:
-
(funcall function arg1 arg2 ...)
==(apply function arg1 arg2 ... nil)
==(apply function (list arg1 arg2 ...))
The difference between funcall and an ordinary function call is that
in the former case the function is obtained by ordinary evaluation
of a form, and in the latter case it is obtained by the special
interpretation of the function position that normally occurs.
- Allegro CL Implementation Details:
-
None.
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