Syntax:
length sequence => n
Arguments and Values:
sequence---a proper sequence.
n---a non-negative integer.
Description:
Returns the number of elements in sequence.
If sequence is a vector with a fill pointer, the active length as specified by the fill pointer is returned.
Examples:
(length "abc") => 3
(setq str (make-array '(3) :element-type 'character
:initial-contents "abc"
:fill-pointer t)) => "abc"
(length str) => 3
(setf (fill-pointer str) 2) => 2
(length str) => 2
Affected By: None.
Exceptional Situations:
Should be prepared to signal an error of type type-error if sequence is not a proper sequence.
See Also:
Notes: None.
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