sdcc/support/regression/tests/bug3565757.c

   1 /*
   2    bug3565757.c
   3 */
   4
   5 #include <testfwk.h>
   6
   7 #pragma std_c99
   8 #pragma disable_warning 85
   9
  10 #include <stdint.h>
  11 #include <stdbool.h>
  12 #include <string.h>
  13
  14 typedef uint_least16_t edge_index_t;
  15
  16 struct edge_t
  17 {
  18         uint_fast8_t u[2];
  19         uint_fast8_t v[2];
  20         edge_index_t prev;
  21         edge_index_t next;
  22         bool in_stix;
  23 };
  24
  25 #ifndef __SDCC_pdk14 // Lack of memory
  26 struct edge_t edges[4];
  27
  28 void init_edges(void)
  29 {
  30 }
  31
  32 void get_edge(struct edge_t *const e, const edge_index_t e_i)
  33 {
  34 }
  35
  36 void set_edge(const edge_index_t e_i, const struct edge_t *const e)
  37 {
  38         memcpy(edges + e_i, e, sizeof(struct edge_t));
  39 }
  40
  41 const uint_fast8_t vertices[4][2] = {{7, 188}, {248, 188}, {248, 9}, {7, 9}};
  42
  43 struct edge_t edge_cache;
  44
  45 void init_geometry(void)
  46 {
  47         edge_index_t i;
  48         init_edges();
  49
  50         for(i = 0; i < 4; i++)
  51         {
  52                 get_edge(&edge_cache, i);
  53                 edge_cache.u[0] = vertices[(i + 0) % 4][0];
  54                 edge_cache.u[1] = vertices[(i + 0) % 4][1];
  55                 edge_cache.v[0] = vertices[(i + 1) % 4][0];
  56                 edge_cache.v[1] = vertices[(i + 1) % 4][1];
  57                 edge_cache.prev = (i + 3) % 4;
  58                 edge_cache.next = (i + 1) % 4;
  59                 set_edge(i, &edge_cache);
  60         }
  61 }
  62 #endif
  63
  64 void testBug(void)
  65 {
  66 #ifndef __SDCC_pdk14 // Lack of memory
  67         init_geometry();
  68
  69         ASSERT(edges[0].prev = 3);
  70         ASSERT(edges[3].prev = 2);
  71 #endif
  72 }
  73