-#define INVLIST_LEN_OFFSET 0 /* Number of elements in the inversion list */
-#define INVLIST_ITER_OFFSET 1 /* Current iteration position */
-#define INVLIST_PREVIOUS_INDEX_OFFSET 2 /* Place to cache index of previous
- result */
-
-/* This is a combination of a version and data structure type, so that one
- * being passed in can be validated to be an inversion list of the correct
- * vintage. When the structure of the header is changed, a new random number
- * in the range 2**31-1 should be generated and the new() method changed to
- * insert that at this location. Then, if an auxiliary program doesn't change
- * correspondingly, it will be discovered immediately */
-#define INVLIST_VERSION_ID_OFFSET 3
-#define INVLIST_VERSION_ID 290655244
-
-/* For safety, when adding new elements, remember to #undef them at the end of
- * the inversion list code section */
-
-#define INVLIST_ZERO_OFFSET 4 /* 0 or 1; must be last element in header */
-/* The UV at position ZERO contains either 0 or 1. If 0, the inversion list
- * contains the code point U+00000, and begins here. If 1, the inversion list
- * doesn't contain U+0000, and it begins at the next UV in the array.
- * Inverting an inversion list consists of adding or removing the 0 at the
- * beginning of it. By reserving a space for that 0, inversion can be made
- * very fast */
-
-#define HEADER_LENGTH (INVLIST_ZERO_OFFSET + 1)
-