source: buchla-68k/include/stdio.h

/*
   =============================================================================
        stdio.h -- Standard I/O Package header for the Buchla 700
        Version 6 -- 1987-10-20 -- D.N. Lynx Crowe
   =============================================================================
*/

#pragma once

#include "fspars.h"             /* file system parameters */
#include "stdint.h"

#define EOF     -1

#define fgetc   getc
#define fputc   putc

#define _BUSY   0x01u
#define _ALLBUF 0x02u
#define _DIRTY  0x04u
#define _EOF    0x08u
#define _IOERR  0x10u

typedef struct {

        int8_t  *_bp;           /* current position in buffer */
        int8_t  *_bend;         /* last character in buffer + 1 */
        int8_t  *_buff;         /* address of buffer */
        int16_t _unit;          /* fd token returned by open */
        uint8_t _flags;         /* {_BUSY, _ALLBUF, _DIRTY, _EOF, _IOERR} */
        int8_t  _bytbuf;        /* single byte buffer for unbuffered streams */
        int16_t _buflen;        /* length of buffer */

} FILE;

#define stdin   (&Cbuffs[0])
#define stdout  (&Cbuffs[1])
#define stderr  (&Cbuffs[2])

#define getchar()       getc(stdin)
#define putchar(c)      putc(c, stdout)
#define feof(fp)        (((fp)->_flags & _EOF) != 0)
#define ferror(fp)      (((fp)->_flags & _IOERR) != 0)
#define clearerr(fp)    ((fp)->_flags &= ~(_IOERR | _EOF))
#define fileno(fp)      ((fp)->_unit)