IOBUF_SIZE        314 nkf.c          static unsigned char   stdibuf[IOBUF_SIZE];
IOBUF_SIZE        315 nkf.c          static unsigned char   stdobuf[IOBUF_SIZE];
IOBUF_SIZE        595 nkf.c                setvbuffer(stdout, stdobuf, IOBUF_SIZE);
IOBUF_SIZE        604 nkf.c                setvbuffer(stdin, stdibuf, IOBUF_SIZE);
IOBUF_SIZE        690 nkf.c                        setvbuffer(fin, stdibuf, IOBUF_SIZE);