63 lines
1.4 KiB
C
63 lines
1.4 KiB
C
#define BUFSIZ 1024
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#define _NFILES 20
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#define NULL 0
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#define EOF (-1)
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#define CMASK 0377
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#define IO_READMODE 1
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#define IO_WRITEMODE 2
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#define IO_UNBUFF 4
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#define IO_EOF 8
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#define IO_ERR 16
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#define IO_MYBUF 32
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#define IO_PERPRINTF 64
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#ifndef FILE
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extern struct _io_buf {
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int _fd;
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int _count;
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int _flags;
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unsigned char *_buf;
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unsigned char *_ptr;
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} *_io_table[_NFILES];
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#endif /* FILE */
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#define FILE struct _io_buf
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#define stdin (_io_table[0])
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#define stdout (_io_table[1])
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#define stderr (_io_table[2])
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#define getchar() getc(stdin)
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#define putchar(c) putc(c,stdout)
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#define getc(p) (--(p)->_count >= 0 ? (int) (*(p)->_ptr++) : \
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_fillbuf(p))
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#define putc(c, p) (--(p)->_count >= 0 ? \
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(int) (*(p)->_ptr++ = (c)) : \
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_flushbuf((c),(p)))
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#define feof(p) (((p)->_flags & IO_EOF) != 0)
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#define ferror(p) (((p)->_flags & IO_ERR) != 0)
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#define fileno(p) ((p)->_fd)
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#define io_testflag(p,x) ((p)->_flags & (x))
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/* If you want a stream to be flushed after each printf use:
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*
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* io_perprintf(stream);
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*
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* If you want to stop with this kind of buffering use:
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*
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* io_noperprintf(stream);
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*/
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#define io_noperprintf(p) ((p)->_flags &= ~IO_PERPRINTF)
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#define io_perprintf(p) ((p)->_flags |= IO_PERPRINTF)
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extern FILE *fopen(), *fdopen(), *freopen(), *popen();
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extern long ftell();
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extern setbuf(), rewind();
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extern char *fgets(), *gets();
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