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array-displacement Arrays Dictionary array-rank
Function

array-in-bounds-p

array-in-bounds-p array &rest subscripts ⇒ generalized-boolean

Arguments and Values

arrayan array.
subscriptsa list of integers of length equal to the rank of the array.
generalized-booleana generalized boolean.

Description

Returns true if the subscripts are all in bounds for array; otherwise returns false. (If array is a vector with a fill pointer, that fill pointer is ignored.)

Examples

 (setq a (make-array '(7 11) :element-type 'string-char))
 (array-in-bounds-p a 0  0) ⇒  true
 (array-in-bounds-p a 6 10) ⇒  true
 (array-in-bounds-p a 0 -1) ⇒  false
 (array-in-bounds-p a 0 11) ⇒  false
 (array-in-bounds-p a 7  0) ⇒  false

See Also

array-dimensions

Notes

 (array-in-bounds-p array subscripts)   
 ≡ (and (not (some #'minusp (list subscripts)))
         (every #'< (list subscripts) (array-dimensions array)))

Backlinks

Arrays Dictionary, Specialized Arrays, Symbols in the COMMON-LISP Package