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feof (3)
  • >> feof (3) ( FreeBSD man: Библиотечные вызовы )
  • feof (3) ( Русские man: Библиотечные вызовы )
  • feof (3) ( Linux man: Библиотечные вызовы )
  • feof (3) ( POSIX man: Библиотечные вызовы )

  • BSD mandoc
     

    NAME

    
    
    clearerr
    
     
    clearerr_unlocked
    
     
    feof
    
     
    feof_unlocked
    
     
    ferror
    
     
    ferror_unlocked
    
     
    fileno
    
     
    fileno_unlocked
    
     - check and reset stream status
    
     
    

    LIBRARY

    Lb libc
    
     
    

    SYNOPSIS

       #include <stdio.h>
    void clearerr (FILE *stream);
    void clearerr_unlocked (FILE *stream);
    int feof (FILE *stream);
    int feof_unlocked (FILE *stream);
    int ferror (FILE *stream);
    int ferror_unlocked (FILE *stream);
    int fileno (FILE *stream);
    int fileno_unlocked (FILE *stream);
     

    DESCRIPTION

    The function clearerr ();
    clears the end-of-file and error indicators for the stream pointed to by Fa stream .

    The function feof ();
    tests the end-of-file indicator for the stream pointed to by Fa stream , returning non-zero if it is set. The end-of-file indicator can only be cleared by the function clearerr (.);

    The function ferror ();
    tests the error indicator for the stream pointed to by Fa stream , returning non-zero if it is set. The error indicator can only be reset by the clearerr ();
    function.

    The function fileno ();
    examines the argument Fa stream and returns its integer descriptor.

    The clearerr_unlocked (,);
    feof_unlocked (,);
    ferror_unlocked (,);
    and fileno_unlocked ();
    functions are equivalent to clearerr (,);
    feof (,);
    ferror (,);
    and fileno ();
    respectively, except that the caller is responsible for locking the stream with flockfile(3) before calling them. These functions may be used to avoid the overhead of locking the stream and to prevent races when multiple threads are operating on the same stream.  

    ERRORS

    These functions should not fail and do not set the external variable errno  

    SEE ALSO

    open(2), fdopen(3), flockfile(3), stdio(3)  

    STANDARDS

    The functions clearerr (,);
    feof (,);
    and ferror ();
    conform to St -isoC .


     

    Index

    NAME
    LIBRARY
    SYNOPSIS
    DESCRIPTION
    ERRORS
    SEE ALSO
    STANDARDS


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