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ANSI Common Lisp  5 Data and Control Flow 5.3 Dictionary of Data and Control Flow
- Syntax:
-
return
[result]
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- Arguments and Values:
-
result - a form; evaluated.
The default is nil.
- Description:
-
Returns, as if by return-from, from the block named nil.
- Examples:
-
(block nil (return) 1) NIL
(block nil (return 1) 2) 1
(block nil (return (values 1 2)) 3) 1, 2
(block nil (block alpha (return 1) 2)) 1
(block alpha (block nil (return 1)) 2) 2
(block nil (block nil (return 1) 2)) 1
- See Also:
-
block,
return-from,
Section 3.1 Evaluation
- Notes:
-
(return) ==(return-from nil)
(return form) ==(return-from nil form)
The implicit blocks established by macros such as do
are often named nil, so that return can be used to exit from
such forms.
- Allegro CL Implementation Details:
-
None.
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