* to @dst.
*
* The positions of unset bits in @old are mapped to themselves
- * (the identify map).
+ * (the identity map).
*
* Apply the above specified mapping to @src, placing the result in
* @dst, clearing any bits previously set in @dst.
* the position of the m-th set bit in @new, where m == n % w.
*
* The positions of unset bits in @old are mapped to themselves
- * (the identify map).
+ * (the identity map).
*
* Apply the above specified mapping to bit position @oldbit, returning
* the new bit position.