git.ozlabs.org Git - ccan/blob - ccan/tcon/test/run-container.c

   1 #include <stdlib.h>
   2
   3 #include <ccan/tcon/tcon.h>
   4 #include <ccan/build_assert/build_assert.h>
   5 #include <ccan/tap/tap.h>
   6
   7 struct inner {
   8         int inner_val;
   9 };
  10
  11 struct outer {
  12         int outer_val;
  13         struct inner inner;
  14 };
  15
  16 struct outer0 {
  17         struct inner inner;
  18         int outer0_val;
  19 };
  20
  21 struct info_base {
  22         char *infop;
  23 };
  24
  25 struct info_tcon {
  26         struct info_base base;
  27         TCON(TCON_CONTAINER(fi, struct outer, inner);
  28              TCON_CONTAINER(fi2, struct outer0, inner));
  29 };
  30
  31 int main(void)
  32 {
  33         struct info_tcon info;
  34         TCON_WRAP(struct info_base,
  35                   TCON_CONTAINER(fi, struct outer, inner);
  36                   TCON_CONTAINER(fi2, struct outer0, inner)) infow;
  37         struct outer ovar;
  38         struct outer0 ovar2;
  39
  40         plan_tests(12);
  41
  42         ok1(tcon_container_of(&info, fi, &ovar.inner) == &ovar);
  43         ok1(tcon_member_of(&info, fi, &ovar) == &ovar.inner);
  44         ok1(tcon_container_of(&infow, fi, &ovar.inner) == &ovar);
  45         ok1(tcon_member_of(&infow, fi, &ovar) == &ovar.inner);
  46
  47         ok1(tcon_container_of(&info, fi2, &ovar2.inner) == &ovar2);
  48         ok1(tcon_member_of(&info, fi2, &ovar2) == &ovar2.inner);
  49         ok1(tcon_container_of(&infow, fi2, &ovar2.inner) == &ovar2);
  50         ok1(tcon_member_of(&infow, fi2, &ovar2) == &ovar2.inner);
  51
  52         /* Check handling of NULLs */
  53         ok1(tcon_container_of(&info, fi, NULL) == NULL);
  54         ok1(tcon_member_of(&info, fi, NULL) == NULL);
  55         ok1(tcon_container_of(&infow, fi, NULL) == NULL);
  56         ok1(tcon_member_of(&infow, fi, NULL) == NULL);
  57
  58         return 0;
  59 }