-/* inline_invlist.c
- *
- * Copyright (C) 2012 by Larry Wall and others
- *
- * You may distribute under the terms of either the GNU General Public
- * License or the Artistic License, as specified in the README file.
- */
-
-#if defined(PERL_IN_UTF8_C) || defined(PERL_IN_REGCOMP_C) || defined(PERL_IN_REGEXEC_C)
-
-#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)
-
-/* An element is in an inversion list iff its index is even numbered: 0, 2, 4,
- * etc */
-#define ELEMENT_RANGE_MATCHES_INVLIST(i) (! ((i) & 1))
-#define PREV_RANGE_MATCHES_INVLIST(i) (! ELEMENT_RANGE_MATCHES_INVLIST(i))
-
-PERL_STATIC_INLINE UV*
-S__get_invlist_len_addr(pTHX_ SV* invlist)
-{
- /* Return the address of the UV that contains the current number
- * of used elements in the inversion list */
-
- PERL_ARGS_ASSERT__GET_INVLIST_LEN_ADDR;
-
- return (UV *) (SvPVX(invlist) + (INVLIST_LEN_OFFSET * sizeof (UV)));
-}
-
-PERL_STATIC_INLINE UV
-S__invlist_len(pTHX_ SV* const invlist)
-{
- /* Returns the current number of elements stored in the inversion list's
- * array */
-
- PERL_ARGS_ASSERT__INVLIST_LEN;
-
- return *_get_invlist_len_addr(invlist);
-}
-
-PERL_STATIC_INLINE bool
-S__invlist_contains_cp(pTHX_ SV* const invlist, const UV cp)
-{
- /* Does <invlist> contain code point <cp> as part of the set? */
-
- IV index = _invlist_search(invlist, cp);
-
- PERL_ARGS_ASSERT__INVLIST_CONTAINS_CP;
-
- return index >= 0 && ELEMENT_RANGE_MATCHES_INVLIST(index);
-}
-
-#endif