Scieneer Common Lisp 1.3.9 online documentation

bit-andc2 bit-array-1 bit-array-2 &optional result-bit-array[Function]

Perform a bit-wise logandc2 on the elements of bit-array-1 and bit-array-2, putting the results in result-bit-array. If result-bit-array is t, bit-array-1 is used. If result-bit-array is nil or omitted, a new array is created. All the arrays must have the same rank and dimensions.