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authorDan Willemsen <dwillemsen@google.com>2019-02-18 13:40:03 -0800
committerDan Willemsen <dwillemsen@google.com>2019-02-18 13:40:03 -0800
commitea2b8a1c079d9184f53277f95a4d52c3c5a9f019 (patch)
tree5ec9aa82542909ecfc0859277d941528857a59b7 /lib/gl_anylinked_list1.h
parentcfddd4f332465a447e87b4c1523fb2b9133e7afd (diff)
downloadm4-ea2b8a1c079d9184f53277f95a4d52c3c5a9f019.tar.gz
Add 1.4.18 tarball contentsupstream
Test: none Change-Id: Id75707b7a41aaaaf33046cf541bcb19ecb4d5851
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+/* Sequential list data type implemented by a linked list.
+ Copyright (C) 2006, 2009-2016 Free Software Foundation, Inc.
+ Written by Bruno Haible <bruno@clisp.org>, 2006.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+/* Common code of gl_linked_list.c and gl_linkedhash_list.c. */
+
+/* -------------------------- gl_list_t Data Type -------------------------- */
+
+/* Concrete list node implementation, valid for this file only. */
+struct gl_list_node_impl
+{
+#if WITH_HASHTABLE
+ struct gl_hash_entry h; /* hash table entry fields; must be first */
+#endif
+ struct gl_list_node_impl *next;
+ struct gl_list_node_impl *prev;
+ const void *value;
+};
+
+/* Concrete gl_list_impl type, valid for this file only. */
+struct gl_list_impl
+{
+ struct gl_list_impl_base base;
+#if WITH_HASHTABLE
+ /* A hash table: managed as an array of collision lists. */
+ struct gl_hash_entry **table;
+ size_t table_size;
+#endif
+ /* A circular list anchored at root.
+ The first node is = root.next, the last node is = root.prev.
+ The root's value is unused. */
+ struct gl_list_node_impl root;
+ /* Number of list nodes, excluding the root. */
+ size_t count;
+};