v0.0.6

[ppastats.git] / trunk / src / list.c

diff --git a/trunk/src/list.c b/trunk/src/list.c
new file mode 100644 (file)
index 0000000..4157dee
--- /dev/null
+++ b/trunk/src/list.c
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2011 jeanfi@gmail.com
+ *
+ * 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 2 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "list.h"
+
+int list_length(void **list)
+{
+       int n;
+
+       if (!list)
+               return 0;
+
+       n = 0;
+       while (*list) {
+               list++;
+               n++;
+       }
+
+       return n;
+}
+
+void **list_add(void **list, void *new_item)
+{
+       int n;
+       void **new_list;
+
+       n = list_length(list);
+
+       new_list = malloc(sizeof(void *)*(n+2));
+
+       if (n) {
+               memcpy(new_list, list, sizeof(void *)*n);
+               free(list);
+       }
+
+       new_list[n] = new_item;
+       new_list[n+1] = NULL;
+
+       return new_list;
+}
+
+void **list_append_list(void **list1, void **list2)
+{
+       int n1, n2, n;
+       void **list;
+
+       n1 = list_length(list1);
+       n2 = list_length(list2);
+
+       n = n1 + n2 + 1;
+
+       list = malloc(sizeof(void *)*(n+1));
+
+       memcpy(list, list1, n1*sizeof(void *));
+       memcpy(list+n1, list2, n2*sizeof(void *));
+
+       list[n1+n2] = NULL;
+
+       free(list1);
+
+       return list;
+}
+