187     char *xx,*yy;  in compare_values()  local
188     double dx = strtod(x,&xx), dy = strtod(y,&yy);  in compare_values()
193     if (x==xx) return y==yy ? 0 : -1;  in compare_values()
194     if (y==yy) return 1;  in compare_values()
213     char *xx,*yy;  in compare_values()  local
217     yy = strptime(y,"%b",&thyme);  in compare_values()
218     if (!xx) return !yy ? 0 : -1;  in compare_values()
219     else if (!yy) return 1;  in compare_values()
240   char *x, *y, *xx = *(char **)xarg, *yy = *(char **)yarg;  in compare_keys()  local
252       y = get_key_data(yy, key, flags);  in compare_keys()
259       if (y != yy) free(y);  in compare_keys()
263   } else retval = compare_values(flags, xx, yy);  in compare_keys()
269     retval = strcmp(xx, yy);  in compare_keys()