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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.