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bit bit-array &rest subscripts ⇒ bit
sbit bit-array &rest subscripts ⇒ bit
(setf (bit bit-array &rest subscripts) new-bit)
(setf (sbit bit-array &rest subscripts) new-bit)
bit-array—for bit, a bit array; for sbit, a simple bit array.
subscripts—a list of valid array indices for the bit-array.
bit—a bit.
bit and sbit access the bit-array element specified by subscripts.
These functions ignore the fill pointer when accessing elements.
(bit (setq ba (make-array 8
:element-type 'bit
:initial-element 1))
3) ⇒ 1
(setf (bit ba 3) 0) ⇒ 0
(bit ba 3) ⇒ 0
(sbit ba 5) ⇒ 1
(setf (sbit ba 5) 1) ⇒ 1
(sbit ba 5) ⇒ 1
aref ,
bit and sbit are like aref except that they require arrays to be a bit array and a simple bit array, respectively.
bit and sbit, unlike char and schar, allow the first argument to be an array of any rank.