構造体定義書

typedef struct __sFILE

No.	名称	属性	説明
1	__sFILE
	_p	unsigned char *	current position in (some) buffer
	_r	int	read space left for getc()
	_w	int	write space left for putc()
	_flags	short	flags, below; this FILE is free if 0
	_file	short	fileno, if Unix descriptor, else -1
	_bf	__sbuf	the buffer (at least 1 byte, if !NULL)
	_lbfsize	int	0 or -_bf._size, for inline putc
	_cookie	void *	cookie passed to io functions
	_ub	__sbuf	ungetc buffer
	_up	unsigned char *	saved _p when _p is doing ungetc data
	_ur	int	saved _r when _r is counting ungetc data
	_ubuf[3]	unsigned char	guarantee an ungetc() buffer
	_nbuf[1]	unsigned char	guarantee a getc() buffer
	_lb	__sbuf	buffer for fgetln()
	_blksize	int	stat.st_blksize (may be != _bf._size)
	_offset	fpos_t	current lseek offset (see WARNING)

__sFILE