git.ozlabs.org Git - ccan/blob - ccan/agar/test/error-graph.c

   1 #include "config.h"
   2
   3 #include <assert.h>
   4
   5 #include <ccan/agar/agar.h>
   6 #include <ccan/container_of/container_of.h>
   7 #include <ccan/ptrint/ptrint.h>
   8
   9 #include "simple-graphr.h"
  10
  11 static const void *error_first_edge_r(const struct agar_graph *gr,
  12                                       const void *nr)
  13 {
  14         return int2ptr(1);
  15 }
  16
  17 static const void *error_next_edge_r(const struct agar_graph *gr,
  18                                      const void *nr, const void *e)
  19 {
  20         assert(ptr2int(e) == 1);
  21
  22         return NULL;
  23 }
  24
  25 static int error_edge_info_r(const struct agar_graph *gr,
  26                              const void *nr, const void *e,
  27                              struct agar_edge_info *eir)
  28 {
  29         int fromindex = ptr2int(nr);
  30
  31         switch (fromindex) {
  32         case 1:
  33                 eir->to = int2ptr(2);
  34                 break;
  35
  36         case 2:
  37                 eir->to = NULL;
  38                 break;
  39
  40         case 3:
  41                 eir->to = int2ptr(4);
  42                 break;
  43
  44         default:
  45                 return -1;
  46         }
  47
  48         return 0;
  49 }
  50
  51 struct error_graphr error_graphr = {
  52         AGAR_INIT_GRAPH(error_first_edge_r, error_next_edge_r,
  53                         error_edge_info_r),
  54 };