+/*
+ * Copyright (c) 2011, Andy Spencer <andy753421@gmail.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ */
+
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include "util.h"
+/* Doubly linked lists */
list_t *list_insert(list_t *next, void *data)
{
list_t *node = new0(list_t);
list_t *list_append(list_t *head, void *data)
{
list_t *last = head;
- while (last->next)
+ while (last && last->next)
last = last->next;
list_t *node = new0(list_t);
node->data = data;
return last ? head : node;
}
-list_t *list_remove(list_t *head, list_t *node)
+list_t *list_remove(list_t *head, list_t *node, int freedata)
{
list_t *next = node->next;
list_t *prev = node->prev;
if (next) next->prev = prev;
if (prev) prev->next = next;
+ if (freedata)
+ free(node->data);
free(node);
return head == node ? next : head;
}
return len;
}
+list_t *list_last(list_t *list)
+{
+ while (list && list->next)
+ list = list->next;
+ return list;
+}
+
list_t *list_find(list_t *list, void *data)
{
for (list_t *cur = list; cur; cur = cur->next)
}
/* Misc */
+int str2num(char *str, int def)
+{
+ char *end = NULL;
+ int num = strtol(str, &end, 10);
+ return end && *end == '\0' ? num : def;
+}
+
int error(char *fmt, ...)
{
va_list ap;