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1991-08-04
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1KB
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56 lines
/*
* stdio.h
* PDC I/O Library Copyright (C) 1987 by J.A. Lydiatt.
* Freely Distributable for non-commercial use.
*/
/*
* I'll try to begin PD System variables with an '_'.
*/
#ifndef _STDIO_H
# define _STDIO_H
# ifndef NULL
# define NULL 0
# endif
# define EOF -1
# define BUFSIZ 1024
# define MAXSTREAM 20
# define _FILEACTIVE 0x01
# define _FILEISDYNA 0x02
# define _FILEISDIRTY 0x04
# define _FILEATEOF 0x08
# define _FILEBAD 0x10
# define _FILEISTTY 0x80
typedef struct _fdevice {
struct _fdevice *next; /* pointer to the next table entry */
char *_filecpos; /* Current position in the buffer */
char *_fileend; /* one past last char in buffer */
char *_filebufp; /* pointer to the buffer */
short _fileflag; /* mode flags */
short _fileunit; /* value returned by open */
char _filebyte; /* one byte used by unbuffered streams. */
short _filelen; /* length of the buffer. */
}
FILE;
extern FILE _fdevtab[];
# define stdin (&_fdevtab[0])
# define stdout (&_fdevtab[1])
# define stderr (&_fdevtab[2])
# define getchar() getc(stdin)
# define fgetc(fp) getc(fp)
# define putchar(c) putc(c,stdout)
# define fputc(c,fp) putc(c,fp)
# define feof(fp) (((fp)->_fileflag & _FILEATEOF) != 0)
# define ferror(fp) ((fp)->_fileflag & _FILEBAD) != 0)
# define clearerr(fp) ((fp)->_fileflag &= ~(_FILEBAD|_FILEATEOF))
# define fileno(fp) ((int)(fp)->_fileunit)
# define fflush(fp) _doflush(fp, -1)
# define rewind fseek(fp, 0L, 0)
#endif