lib/ccan/list/test/compile_ok-constant.c

   1 #include <ccan/list/list.h>
   2 #include <ccan/tap/tap.h>
   3 #include <ccan/list/list.c>
   4 #include <stdbool.h>
   5 #include <stdio.h>
   6
   7 struct child {
   8         const char *name;
   9         struct ccan_list_node list;
  10 };
  11
  12 static bool children(const struct ccan_list_head *list)
  13 {
  14         return !ccan_list_empty(list);
  15 }
  16
  17 static const struct child *first_child(const struct ccan_list_head *list)
  18 {
  19         return ccan_list_top(list, struct child, list);
  20 }
  21
  22 static const struct child *last_child(const struct ccan_list_head *list)
  23 {
  24         return ccan_list_tail(list, struct child, list);
  25 }
  26
  27 static void check_children(const struct ccan_list_head *list)
  28 {
  29         ccan_list_check(list, "bad child list");
  30 }
  31
  32 static void print_children(const struct ccan_list_head *list)
  33 {
  34         const struct child *c;
  35         ccan_list_for_each(list, c, list)
  36                 printf("%s\n", c->name);
  37 }
  38
  39 int main(void)
  40 {
  41         CCAN_LIST_HEAD(h);
  42
  43         children(&h);
  44         first_child(&h);
  45         last_child(&h);
  46         check_children(&h);
  47         print_children(&h);
  48         return 0;
  49 }