184     char *xx,*yy;  in compare_values()  local
185     double dx = strtod(x,&xx), dy = strtod(y,&yy);  in compare_values()
190     if (x==xx) return y==yy ? 0 : -1;  in compare_values()
191     if (y==yy) return 1;  in compare_values()
210     char *xx,*yy;  in compare_values()  local
214     yy = strptime(y,"%b",&thyme);  in compare_values()
215     if (!xx) return !yy ? 0 : -1;  in compare_values()
216     else if (!yy) return 1;  in compare_values()
237   char *x, *y, *xx = *(char **)xarg, *yy = *(char **)yarg;  in compare_keys()  local
249       y = get_key_data(yy, key, flags);  in compare_keys()
256       if (y != yy) free(y);  in compare_keys()
260   } else retval = compare_values(flags, xx, yy);  in compare_keys()
264     retval = strcmp(xx, yy);  in compare_keys()