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annotate lib/gl_avltreehash_list.c @ 17298:d536543d59a6

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statat: new module, split out from fstatat GNU Emacs needs the POSIX-specified fstatat, but not the gnulib-specified statat and lstat. Split the latter two into a new module 'statat'. * lib/openat.h: Depend on GNULIB_STATAT, not GNULIB_FSTATAT. * lib/openat.h, lib/statat.c (STATAT_INLINE): Rename from FSTATAT_INLINE. All uses changed. * modules/fstatat (Files): Remove lib/statat.c. (gl_MODULE_INDICATOR([fstatat])): Remove. (lib_SOURCES): Remove. (Maintainer): Add self. * modules/statat, modules/statat-tests, tests/test-statat.c: New files. * tests/test-fstatat.c (BASE): Don't define if already defined. (do_stat, do_lstat) [!TEST_STATAT]: Test fstatat instead.
author Paul Eggert <eggert@cs.ucla.edu>
date Wed, 23 Jan 2013 18:20:09 -0800
parents e542fd46ad6f
children
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1 /* Sequential list data type implemented by a hash table with a binary tree.
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2 Copyright (C) 2006, 2008-2013 Free Software Foundation, Inc.
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3 Written by Bruno Haible <bruno@clisp.org>, 2006.
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4
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5 This program is free software: you can redistribute it and/or modify
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6 it under the terms of the GNU General Public License as published by
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7 the Free Software Foundation; either version 3 of the License, or
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8 (at your option) any later version.
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9
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10 This program is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 GNU General Public License for more details.
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14
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15 You should have received a copy of the GNU General Public License
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16 along with this program. If not, see <http://www.gnu.org/licenses/>. */
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17
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1c4ed7637c24 Include <config.h> unconditionally.
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18 #include <config.h>
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19
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20 /* Specification. */
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21 #include "gl_avltreehash_list.h"
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22
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23 #include <stdint.h> /* for SIZE_MAX */
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24 #include <stdlib.h>
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25
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26 #include "gl_avltree_oset.h"
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27 #include "xsize.h"
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28
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29 #ifndef uintptr_t
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30 # define uintptr_t unsigned long
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31 #endif
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32
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33 #define WITH_HASHTABLE 1
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34
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35 /* Which kind of binary trees to use for ordered sets. Quite arbitrary. */
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36 #define OSET_TREE_FLAVOR GL_AVLTREE_OSET
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37
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38 /* -------------------------- gl_list_t Data Type -------------------------- */
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39
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40 /* Generic hash-table code: Type definitions. */
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41 #include "gl_anyhash_list1.h"
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42
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43 /* Generic AVL tree code: Type definitions. */
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44 #include "gl_anyavltree_list1.h"
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45
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46 /* Generic hash-table code: Low-level code. */
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47 #include "gl_anyhash_list2.h"
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48
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49 /* Generic binary tree code: Type definitions. */
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50 #include "gl_anytree_list1.h"
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51
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52 /* Hash-table with binary tree code: Handling of hash buckets. */
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53 #include "gl_anytreehash_list1.h"
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54
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55 /* Generic AVL tree code: Insertion/deletion algorithms. */
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56 #include "gl_anyavltree_list2.h"
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57
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58 /* Generic binary tree code: Functions taking advantage of the hash table. */
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59 #include "gl_anytreehash_list2.h"
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60
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61 /* Generic binary tree code: All other functions. */
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62 #include "gl_anytree_list2.h"
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63
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64 /* For debugging. */
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65 static unsigned int
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66 check_invariants (gl_list_node_t node, gl_list_node_t parent)
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67 {
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68 unsigned int left_height =
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69 (node->left != NULL ? check_invariants (node->left, node) : 0);
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70 unsigned int right_height =
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71 (node->right != NULL ? check_invariants (node->right, node) : 0);
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72 int balance = (int)right_height - (int)left_height;
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73
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74 if (!(node->parent == parent))
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75 abort ();
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76 if (!(node->branch_size
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77 == (node->left != NULL ? node->left->branch_size : 0)
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78 + 1 + (node->right != NULL ? node->right->branch_size : 0)))
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79 abort ();
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80 if (!(balance >= -1 && balance <= 1))
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81 abort ();
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82 if (!(node->balance == balance))
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83 abort ();
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84
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85 return 1 + (left_height > right_height ? left_height : right_height);
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86 }
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87 void
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88 gl_avltreehash_list_check_invariants (gl_list_t list)
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89 {
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90 if (list->root != NULL)
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91 check_invariants (list->root, NULL);
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92 }
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93
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94
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95 const struct gl_list_implementation gl_avltreehash_list_implementation =
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96 {
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97 gl_tree_nx_create_empty,
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98 gl_tree_nx_create,
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99 gl_tree_size,
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100 gl_tree_node_value,
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101 gl_tree_node_nx_set_value,
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102 gl_tree_next_node,
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103 gl_tree_previous_node,
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104 gl_tree_get_at,
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105 gl_tree_nx_set_at,
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106 gl_tree_search_from_to,
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107 gl_tree_indexof_from_to,
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108 gl_tree_nx_add_first,
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109 gl_tree_nx_add_last,
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110 gl_tree_nx_add_before,
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111 gl_tree_nx_add_after,
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112 gl_tree_nx_add_at,
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113 gl_tree_remove_node,
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114 gl_tree_remove_at,
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115 gl_tree_remove,
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116 gl_tree_list_free,
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117 gl_tree_iterator,
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118 gl_tree_iterator_from_to,
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119 gl_tree_iterator_next,
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120 gl_tree_iterator_free,
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121 gl_tree_sortedlist_search,
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122 gl_tree_sortedlist_search_from_to,
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123 gl_tree_sortedlist_indexof,
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124 gl_tree_sortedlist_indexof_from_to,
12445
a8c91b846640 Move the malloc checking from module 'list' to new module 'xlist'.
Bruno Haible <bruno@clisp.org>
parents: 12421
diff changeset
125 gl_tree_sortedlist_nx_add,
6981
0bc4f2ff0eae Sequential list data type implemented by a hash table with a binary tree.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
126 gl_tree_sortedlist_remove
0bc4f2ff0eae Sequential list data type implemented by a hash table with a binary tree.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
127 };