File size: 5,878 Bytes
3dcad1f |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 |
#ifndef SCM_HASHTAB_H
#define SCM_HASHTAB_H
/* Copyright 1995-1996,1999-2001,2003-2004,2006,2008-2009,2011,2018
Free Software Foundation, Inc.
This file is part of Guile.
Guile is free software: you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Guile is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public
License along with Guile. If not, see
<https://www.gnu.org/licenses/>. */
#include "libguile/gc.h"
#define SCM_HASHTABLE_P(x) (SCM_HAS_TYP7 (x, scm_tc7_hashtable))
#define SCM_VALIDATE_HASHTABLE(pos, arg) \
SCM_MAKE_VALIDATE_MSG (pos, arg, HASHTABLE_P, "hash-table")
#define SCM_HASHTABLE_VECTOR(h) SCM_CELL_OBJECT_1 (h)
#define SCM_SET_HASHTABLE_VECTOR(x, v) SCM_SET_CELL_OBJECT_1 ((x), (v))
#define SCM_HASHTABLE(x) ((scm_t_hashtable *) SCM_CELL_WORD_2 (x))
#define SCM_HASHTABLE_N_ITEMS(x) (SCM_HASHTABLE (x)->n_items)
#define SCM_SET_HASHTABLE_N_ITEMS(x, n) (SCM_HASHTABLE (x)->n_items = n)
#define SCM_HASHTABLE_INCREMENT(x) (SCM_HASHTABLE_N_ITEMS(x)++)
#define SCM_HASHTABLE_DECREMENT(x) (SCM_HASHTABLE_N_ITEMS(x)--)
#define SCM_HASHTABLE_UPPER(x) (SCM_HASHTABLE (x)->upper)
#define SCM_HASHTABLE_LOWER(x) (SCM_HASHTABLE (x)->lower)
#define SCM_HASHTABLE_N_BUCKETS(h) \
SCM_SIMPLE_VECTOR_LENGTH (SCM_HASHTABLE_VECTOR (h))
#define SCM_HASHTABLE_BUCKET(h, i) \
SCM_SIMPLE_VECTOR_REF (SCM_HASHTABLE_VECTOR (h), i)
#define SCM_SET_HASHTABLE_BUCKET(h, i, x) \
SCM_SIMPLE_VECTOR_SET (SCM_HASHTABLE_VECTOR (h), i, x)
/* Function that computes a hash of OBJ modulo MAX. */
typedef unsigned long (*scm_t_hash_fn) (SCM obj, unsigned long max,
void *closure);
/* Function that returns the value associated with OBJ in ALIST according to
some equality predicate. */
typedef SCM (*scm_t_assoc_fn) (SCM obj, SCM alist, void *closure);
/* Function to fold over the entries of a hash table. */
typedef SCM (*scm_t_hash_fold_fn) (void *closure, SCM key, SCM value,
SCM result);
/* Function to iterate over the handles (key-value pairs) of a hash
table. */
typedef SCM (*scm_t_hash_handle_fn) (void *closure, SCM handle);
typedef struct scm_t_hashtable {
unsigned long n_items; /* number of items in table */
unsigned long lower; /* when to shrink */
unsigned long upper; /* when to grow */
int size_index; /* index into hashtable_size */
int min_size_index; /* minimum size_index */
scm_t_hash_fn hash_fn; /* for rehashing after a GC. */
} scm_t_hashtable;
SCM_API SCM scm_vector_to_hash_table (SCM vector);
SCM_API SCM scm_c_make_hash_table (unsigned long k);
SCM_API SCM scm_make_hash_table (SCM n);
SCM_API SCM scm_hash_table_p (SCM h);
SCM_INTERNAL void scm_i_rehash (SCM table, scm_t_hash_fn hash_fn,
void *closure, const char *func_name);
SCM_API SCM scm_hash_fn_get_handle (SCM table, SCM obj,
scm_t_hash_fn hash_fn,
scm_t_assoc_fn assoc_fn,
void *closure);
SCM_API SCM scm_hash_fn_create_handle_x (SCM table, SCM obj, SCM init,
scm_t_hash_fn hash_fn,
scm_t_assoc_fn assoc_fn,
void *closure);
SCM_API SCM scm_hash_fn_ref (SCM table, SCM obj, SCM dflt,
scm_t_hash_fn hash_fn,
scm_t_assoc_fn assoc_fn,
void *closure);
SCM_API SCM scm_hash_fn_set_x (SCM table, SCM obj, SCM val,
scm_t_hash_fn hash_fn,
scm_t_assoc_fn assoc_fn,
void *closure);
SCM_API SCM scm_hash_fn_remove_x (SCM table, SCM obj,
scm_t_hash_fn hash_fn,
scm_t_assoc_fn assoc_fn,
void *closure);
SCM_API SCM scm_internal_hash_fold (scm_t_hash_fold_fn fn, void *closure,
SCM init, SCM table);
SCM_API void scm_internal_hash_for_each_handle (scm_t_hash_handle_fn fn,
void *closure, SCM table);
SCM_API SCM scm_hash_clear_x (SCM table);
SCM_API SCM scm_hashq_get_handle (SCM table, SCM obj);
SCM_API SCM scm_hashq_create_handle_x (SCM table, SCM obj, SCM init);
SCM_API SCM scm_hashq_ref (SCM table, SCM obj, SCM dflt);
SCM_API SCM scm_hashq_set_x (SCM table, SCM obj, SCM val);
SCM_API SCM scm_hashq_remove_x (SCM table, SCM obj);
SCM_API SCM scm_hashv_get_handle (SCM table, SCM obj);
SCM_API SCM scm_hashv_create_handle_x (SCM table, SCM obj, SCM init);
SCM_API SCM scm_hashv_ref (SCM table, SCM obj, SCM dflt);
SCM_API SCM scm_hashv_set_x (SCM table, SCM obj, SCM val);
SCM_API SCM scm_hashv_remove_x (SCM table, SCM obj);
SCM_API SCM scm_hash_get_handle (SCM table, SCM obj);
SCM_API SCM scm_hash_create_handle_x (SCM table, SCM obj, SCM init);
SCM_API SCM scm_hash_ref (SCM table, SCM obj, SCM dflt);
SCM_API SCM scm_hash_set_x (SCM table, SCM obj, SCM val);
SCM_API SCM scm_hash_remove_x (SCM table, SCM obj);
SCM_API SCM scm_hashx_get_handle (SCM hash, SCM assoc, SCM table, SCM obj);
SCM_API SCM scm_hashx_create_handle_x (SCM hash, SCM assoc, SCM table, SCM obj, SCM init);
SCM_API SCM scm_hashx_ref (SCM hash, SCM assoc, SCM table, SCM obj, SCM dflt);
SCM_API SCM scm_hashx_set_x (SCM hash, SCM assoc, SCM table, SCM obj, SCM val);
SCM_API SCM scm_hashx_remove_x (SCM hash, SCM assoc, SCM table, SCM obj);
SCM_API SCM scm_hash_fold (SCM proc, SCM init, SCM hash);
SCM_API SCM scm_hash_for_each (SCM proc, SCM hash);
SCM_API SCM scm_hash_for_each_handle (SCM proc, SCM hash);
SCM_API SCM scm_hash_map_to_list (SCM proc, SCM hash);
SCM_API SCM scm_hash_count (SCM hash, SCM pred);
SCM_INTERNAL void scm_i_hashtable_print (SCM exp, SCM port, scm_print_state *pstate);
SCM_INTERNAL void scm_init_hashtab (void);
#endif /* SCM_HASHTAB_H */
|