2 * Copyright 2008-2009 Katholieke Universiteit Leuven
4 * Use of this software is governed by the GNU LGPLv2.1 license
6 * Written by Sven Verdoolaege, K.U.Leuven, Departement
7 * Computerwetenschappen, Celestijnenlaan 200A, B-3001 Leuven, Belgium
14 #include <isl/stdint.h>
16 #if defined(__cplusplus)
20 #define isl_hash_init() (2166136261u)
21 #define isl_hash_byte(h,b) do { \
25 #define isl_hash_hash(h,h2) \
27 isl_hash_byte(h, (h2) & 0xFF); \
28 isl_hash_byte(h, ((h2) >> 8) & 0xFF); \
29 isl_hash_byte(h, ((h2) >> 16) & 0xFF); \
30 isl_hash_byte(h, ((h2) >> 24) & 0xFF); \
32 #define isl_hash_bits(h,bits) \
33 ((bits) == 32) ? (h) : \
35 ((h) >> (bits)) ^ ((h) & (((uint32_t)1 << (bits)) - 1)) : \
36 (((h) >> (bits)) ^ (h)) & (((uint32_t)1 << (bits)) - 1)
38 uint32_t isl_hash_string(uint32_t hash, const char *s);
39 uint32_t isl_hash_mem(uint32_t hash, const void *p, size_t len);
41 #define isl_hash_builtin(h,l) isl_hash_mem(h, &l, sizeof(l))
43 struct isl_hash_table_entry
49 struct isl_hash_table {
52 struct isl_hash_table_entry *entries;
57 struct isl_hash_table *isl_hash_table_alloc(struct isl_ctx *ctx, int min_size);
58 void isl_hash_table_free(struct isl_ctx *ctx, struct isl_hash_table *table);
60 int isl_hash_table_init(struct isl_ctx *ctx, struct isl_hash_table *table,
62 void isl_hash_table_clear(struct isl_hash_table *table);
63 struct isl_hash_table_entry *isl_hash_table_find(struct isl_ctx *ctx,
64 struct isl_hash_table *table,
66 int (*eq)(const void *entry, const void *val),
67 const void *val, int reserve);
68 int isl_hash_table_foreach(struct isl_ctx *ctx,
69 struct isl_hash_table *table,
70 int (*fn)(void **entry, void *user), void *user);
71 void isl_hash_table_remove(struct isl_ctx *ctx,
72 struct isl_hash_table *table,
73 struct isl_hash_table_entry *entry);
75 #if defined(__cplusplus)