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/* Most systems provide FILE as a struct and the necessary bitmask in
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32
<stdio.h>, because they need it for implementing getc() and putc() as
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#if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
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# if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
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return ((fp->_flags & _IO_NO_WRITES) != 0
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|| ((fp->_flags & (_IO_NO_READS | _IO_CURRENTLY_PUTTING)) == 0
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&& fp->_IO_read_base != NULL));
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#elif defined __sferror || defined __DragonFly__ /* FreeBSD, NetBSD, OpenBSD, DragonFly, MacOS X, Cygwin */
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# elif defined __sferror || defined __DragonFly__ /* FreeBSD, NetBSD, OpenBSD, DragonFly, MacOS X, Cygwin */
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return (fp_->_flags & __SRD) != 0;
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#elif defined __EMX__ /* emx+gcc */
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# elif defined __EMX__ /* emx+gcc */
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return (fp->_flags & _IOREAD) != 0;
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#elif defined _IOERR /* AIX, HP-UX, IRIX, OSF/1, Solaris, OpenServer, mingw */
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# elif defined __minix /* Minix */
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return (fp->_flags & _IOREADING) != 0;
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# elif defined _IOERR /* AIX, HP-UX, IRIX, OSF/1, Solaris, OpenServer, mingw, NonStop Kernel */
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# if defined __sun /* Solaris */
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return (fp->_flag & _IOREAD) != 0 && (fp->_flag & _IOWRT) == 0;
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return (fp->_flag & _IOREAD) != 0;
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#elif defined __UCLIBC__ /* uClibc */
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# elif defined __UCLIBC__ /* uClibc */
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return (fp->__modeflags & (__FLAG_READONLY | __FLAG_READING)) != 0;
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#elif defined __QNX__ /* QNX */
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# elif defined __QNX__ /* QNX */
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return ((fp->_Mode & 0x2 /* _MOPENW */) == 0
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|| (fp->_Mode & 0x1000 /* _MREAD */) != 0);
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#elif defined __MINT__ /* Atari FreeMiNT */
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# elif defined __MINT__ /* Atari FreeMiNT */
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if (!fp->__mode.__write)
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if (!fp->__mode.__read)
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# ifdef _IO_CURRENTLY_GETTING /* Flag added on 2009-02-28 */
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# ifdef _IO_CURRENTLY_GETTING /* Flag added on 2009-02-28 */
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return (fp->__flags & _IO_CURRENTLY_GETTING) != 0;
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return (fp->__buffer < fp->__get_limit /*|| fp->__bufp == fp->__put_limit ??*/);
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# elif defined EPLAN9 /* Plan9 */
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if (fp->state == 0 /* CLOSED */ || fp->state == 4 /* WR */)
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return (fp->state == 3 /* RD */ && (fp->bufl == 0 || fp->rp < fp->wp));
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return (fp->__buffer < fp->__get_limit /*|| fp->__bufp == fp->__put_limit ??*/);
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# error "Please port gnulib freading.c to your platform!"
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#error "Please port gnulib freading.c to your platform!"