text: #ifndef CONTAINER_TYPES
  typedef enum {
      array_t = 0,
      threadarray_t,
      bst_t,
      threadbst_t,
      bsa_t,
      threadbsa_t,
      heap_t,
      threadheap_t,
      list_t,
      threadlist_t,
      map_t,
      threadmap_t,
  } container_t;
  #endif  // CONTAINER_TYPES