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428
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1 /* Lisp interface to hash tables -- include file.
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2 Copyright (C) 1995, 1996 Ben Wing.
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3
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4 This file is part of XEmacs.
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5
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6 XEmacs is free software; you can redistribute it and/or modify it
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7 under the terms of the GNU General Public License as published by the
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8 Free Software Foundation; either version 2, or (at your option) any
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9 later version.
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10
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11 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with XEmacs; see the file COPYING. If not, write to
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18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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19 Boston, MA 02111-1307, USA. */
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20
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21 /* Synched up with: Not in FSF. */
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22
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440
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23 #ifndef INCLUDED_elhash_h_
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24 #define INCLUDED_elhash_h_
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428
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25
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440
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26 typedef struct Lisp_Hash_Table Lisp_Hash_Table;
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428
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27
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440
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28 DECLARE_LRECORD (hash_table, Lisp_Hash_Table);
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29
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30 #define XHASH_TABLE(x) XRECORD (x, hash_table, Lisp_Hash_Table)
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617
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31 #define wrap_hash_table(p) wrap_record (p, hash_table)
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428
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32 #define HASH_TABLEP(x) RECORDP (x, hash_table)
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33 #define CHECK_HASH_TABLE(x) CHECK_RECORD (x, hash_table)
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34 #define CONCHECK_HASH_TABLE(x) CONCHECK_RECORD (x, hash_table)
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35
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36 enum hash_table_weakness
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37 {
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38 HASH_TABLE_NON_WEAK,
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39 HASH_TABLE_KEY_WEAK,
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40 HASH_TABLE_VALUE_WEAK,
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442
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41 HASH_TABLE_KEY_VALUE_WEAK,
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428
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42 HASH_TABLE_KEY_CAR_WEAK,
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43 HASH_TABLE_VALUE_CAR_WEAK,
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450
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44 HASH_TABLE_KEY_CAR_VALUE_WEAK,
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428
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45 HASH_TABLE_WEAK
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46 };
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47
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48 enum hash_table_test
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49 {
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50 HASH_TABLE_EQ,
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51 HASH_TABLE_EQL,
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52 HASH_TABLE_EQUAL
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53 };
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54
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1204
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55 extern const struct memory_description hash_table_description[];
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428
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56
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57 EXFUN (Fcopy_hash_table, 1);
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58 EXFUN (Fhash_table_count, 1);
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59 EXFUN (Fgethash, 3);
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60 EXFUN (Fputhash, 3);
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61 EXFUN (Fremhash, 2);
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62 EXFUN (Fclrhash, 1);
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63
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64 typedef int (*hash_table_test_function_t) (Lisp_Object obj1, Lisp_Object obj2);
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65 typedef unsigned long (*hash_table_hash_function_t) (Lisp_Object obj);
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66 typedef int (*maphash_function_t) (Lisp_Object key, Lisp_Object value,
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67 void* extra_arg);
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68
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450
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69 Lisp_Object make_standard_lisp_hash_table (enum hash_table_test test,
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665
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70 Elemcount size,
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450
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71 double rehash_size,
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72 double rehash_threshold,
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73 enum hash_table_weakness weakness);
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74
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75 Lisp_Object make_general_lisp_hash_table (hash_table_hash_function_t hash_function,
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76 hash_table_test_function_t test_function,
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665
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77 Elemcount size,
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428
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78 double rehash_size,
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79 double rehash_threshold,
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80 enum hash_table_weakness weakness);
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81
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665
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82 Lisp_Object make_lisp_hash_table (Elemcount size,
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428
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83 enum hash_table_weakness weakness,
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84 enum hash_table_test test);
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85
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86 void elisp_maphash (maphash_function_t function,
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87 Lisp_Object hash_table, void *extra_arg);
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88
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489
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89 void elisp_maphash_unsafe (maphash_function_t function,
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90 Lisp_Object hash_table, void *extra_arg);
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91
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428
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92 void elisp_map_remhash (maphash_function_t predicate,
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93 Lisp_Object hash_table, void *extra_arg);
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94
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95 int finish_marking_weak_hash_tables (void);
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96 void prune_weak_hash_tables (void);
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97
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440
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98 void pdump_reorganize_hash_table (Lisp_Object);
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428
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99
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440
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100 #endif /* INCLUDED_elhash_h_ */
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