tlist: typesafe variant of list module.

[ccan] / ccan / tlist / _info

diff --git a/ccan/tlist/_info b/ccan/tlist/_info
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+++ b/ccan/tlist/_info
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+#include <stdio.h>
+#include <string.h>
+#include "config.h"
+
+/**
+ * tlist - typesafe double linked list routines
+ *
+ * The list header contains routines for manipulating double linked lists;
+ * this extends it so you can create list head types which only accomodate
+ * a specific entry type.
+ *
+ * You use TLIST_TYPE() to define the specific struct tlist_<name>, then use
+ * the tlist_* variants of the various list_* operations.
+ *
+ * Example:
+ *     #include <err.h>
+ *     #include <stdio.h>
+ *     #include <stdlib.h>
+ *     #include <ccan/tlist/tlist.h>
+ *
+ *     // Defines struct tlist_children
+ *     TLIST_TYPE(children, struct child);
+ *     struct parent {
+ *             const char *name;
+ *             struct tlist_children children;
+ *             unsigned int num_children;
+ *     };
+ *
+ *     struct child {
+ *             const char *name;
+ *             struct list_node list;
+ *     };
+ *
+ *     int main(int argc, char *argv[])
+ *     {
+ *             struct parent p;
+ *             struct child *c;
+ *             unsigned int i;
+ *
+ *             if (argc < 2)
+ *                     errx(1, "Usage: %s parent children...", argv[0]);
+ *
+ *             p.name = argv[1];
+ *             tlist_init(&p.children);
+ *             for (i = 2; i < argc; i++) {
+ *                     c = malloc(sizeof(*c));
+ *                     c->name = argv[i];
+ *                     tlist_add(&p.children, c, list);
+ *                     p.num_children++;
+ *             }
+ *
+ *             printf("%s has %u children:", p.name, p.num_children);
+ *             tlist_for_each(&p.children, c, list)
+ *                     printf("%s ", c->name);
+ *             printf("\n");
+ *             return 0;
+ *     }
+ *
+ * License: LGPL
+ * Author: Rusty Russell <rusty@rustcorp.com.au>
+ */
+int main(int argc, char *argv[])
+{
+       if (argc != 2)
+               return 1;
+
+       if (strcmp(argv[1], "depends") == 0) {
+               printf("ccan/list\n");
+               return 0;
+       }
+
+       return 1;
+}