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void	 _EXFUN(__fpurge,(FILE *));

/* TODO:

   void _flushlbf (void);

   int __fsetlocking (FILE *__fp, int __type);

*/

#ifdef  __GNUC__

_ELIDABLE_INLINE inline size_t

__fbufsize (FILE *__fp) { return (size_t) __fp->_bf._size; }

_ELIDABLE_INLINE inline int

__freading (FILE *__fp) { return (__fp->_flags & __SRD) != 0; }

_ELIDABLE_INLINE inline int

__fwriting (FILE *__fp) { return (__fp->_flags & __SWR) != 0; }

_ELIDABLE_INLINE inline int

__freadable (FILE *__fp) { return (__fp->_flags & (__SRD | __SRW)) != 0; }

_ELIDABLE_INLINE inline int

__fwriteable (FILE *__fp) { return (__fp->_flags & (__SWR | __SRW)) != 0; }

_ELIDABLE_INLINE inline int

__flbf (FILE *__fp) { return (__fp->_flags & __SLBF) != 0; }

_ELIDABLE_INLINE inline size_t

__fpending (FILE *__fp) { return __fp->_p - __fp->_bf._base; }

#else

#define __fbufsize(__fp) ((size_t) (__fp)->_bf._size)

#define __freading(__fp) (((__fp)->_flags & __SRD) != 0)

#define __fwriting(__fp) (((__fp)->_flags & __SWR) != 0)

#define __freadable(__fp) (((__fp)->_flags & (__SRD | __SRW)) != 0)

#define __fwriteable(__fp) (((__fp)->_flags & (__SWR | __SRW)) != 0)

#define __flbf(__fp) (((__fp)->_flags & __SLBF) != 0)

#define __fpending(__fp) ((size_t) ((__fp)->_p - (__fp)->_bf._base))