Function merge_state_array

compat/regex/regexec.c:1739–1764

      mctx->state_log_top = next_state_log_idx;
    }
  return REG_NOERROR;
}

static reg_errcode_t
internal_function
merge_state_array (const re_dfa_t *dfa, re_dfastate_t **dst,
		   re_dfastate_t **src, int num)
{
  int st_idx;
  reg_errcode_t err;
  for (st_idx = 0; st_idx < num; ++st_idx)
    {
      if (dst[st_idx] == NULL)
	dst[st_idx] = src[st_idx];
      else if (src[st_idx] != NULL)
	{
	  re_node_set merged_set;
	  err = re_node_set_init_union (&merged_set, &dst[st_idx]->nodes,
					&src[st_idx]->nodes);
	  if (BE (err != REG_NOERROR, 0))
	    return err;
	  dst[st_idx] = re_acquire_state (&err, dfa, &merged_set);
	  re_node_set_free (&merged_set);
	  if (BE (err != REG_NOERROR, 0))
	    return err;
	}
    }
  return REG_NOERROR;
}