sizeof_euc_to_utf8_2bytes 1993 ext/nkf/nkf-utf8/nkf.c 	if (0<=c2 && c2<sizeof_euc_to_utf8_2bytes)
sizeof_euc_to_utf8_2bytes 2003 ext/nkf/nkf-utf8/nkf.c 	if (0<=c2 && c2<sizeof_euc_to_utf8_2bytes)