/* Base bitset stuff.
- Copyright (C) 2002-2004, 2006, 2009-2012 Free Software Foundation,
+ Copyright (C) 2002-2004, 2006, 2009-2013 Free Software Foundation,
Inc.
Contributed by Michael Hayes (m.hayes@elec.canterbury.ac.nz).
Memory for bit array and bitset structure allocated
contiguously.
BITSET_LIST: Linked list of arrays of bits (variable size, least storage
- for large very sparse sets).
+ for large very sparse sets).
BITSET_TABLE: Expandable table of pointers to arrays of bits
- (variable size, less storage for large sparse sets).
+ (variable size, less storage for large sparse sets).
Faster than BITSET_LIST for random access.
BITSET_VARRAY: Variable array of bits (variable size, fast for
dense bitsets).
statistics and/or better run-time checking.
*/
enum bitset_type {BITSET_ARRAY, BITSET_LIST, BITSET_TABLE, BITSET_VARRAY,
- BITSET_TYPE_NUM, BITSET_STATS};
+ BITSET_TYPE_NUM, BITSET_STATS};
#define BITSET_TYPE_NAMES {"abitset", "lbitset", "ebitset", "vbitset"}
extern const char * const bitset_type_names[];
#define BITSET_LIST_SIZE 1024
enum bitset_ops {BITSET_OP_ZERO, BITSET_OP_ONES,
- BITSET_OP_COPY, BITSET_OP_NOT,
- BITSET_OP_EMPTY_P, BITSET_OP_EQUAL_P,
- BITSET_OP_SUBSET_P, BITSET_OP_DISJOINT_P,
- BITSET_OP_AND, BITSET_OP_OR, BITSET_OP_XOR, BITSET_OP_ANDN,
- BITSET_OP_OR_AND, BITSET_OP_AND_OR, BITSET_OP_ANDN_OR};
+ BITSET_OP_COPY, BITSET_OP_NOT,
+ BITSET_OP_EMPTY_P, BITSET_OP_EQUAL_P,
+ BITSET_OP_SUBSET_P, BITSET_OP_DISJOINT_P,
+ BITSET_OP_AND, BITSET_OP_OR, BITSET_OP_XOR, BITSET_OP_ANDN,
+ BITSET_OP_OR_AND, BITSET_OP_AND_OR, BITSET_OP_ANDN_OR};
struct bbitset_struct
{
const struct bitset_vtable *vtable;
- bitset_windex cindex; /* Cache word index. */
- bitset_windex csize; /* Cache size in words. */
- bitset_word *cdata; /* Cache data pointer. */
- bitset_bindex n_bits; /* Number of bits. */
+ bitset_windex cindex; /* Cache word index. */
+ bitset_windex csize; /* Cache size in words. */
+ bitset_word *cdata; /* Cache data pointer. */
+ bitset_bindex n_bits; /* Number of bits. */
/* Perhaps we could sacrifice another word to indicate
that the bitset is known to be zero, that a bit has been set
in the cache, and that a bit has been cleared in the cache.
bool (*or_and_cmp) (bitset, bitset, bitset, bitset);
bitset_bindex (*list) (bitset, bitset_bindex *, bitset_bindex,
- bitset_bindex *);
+ bitset_bindex *);
bitset_bindex (*list_reverse) (bitset, bitset_bindex *, bitset_bindex,
- bitset_bindex *);
+ bitset_bindex *);
void (*free) (bitset);
enum bitset_type type;
};