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    The following form allows you to view linux man pages.

    Command:

    clearerr

    
    
    

    SYNOPSIS

           #include <stdio.h>
    
           void clearerr(FILE *stream);
    
           int feof(FILE *stream);
    
           int ferror(FILE *stream);
    
           int fileno(FILE *stream);
    
       Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
    
           fileno(): _POSIX_C_SOURCE >= 1 || _XOPEN_SOURCE || _POSIX_SOURCE
    
    
    

    DESCRIPTION

           The function clearerr() clears the end-of-file and error indicators for
           the stream pointed to by stream.
    
           The function feof() tests the  end-of-file  indicator  for  the  stream
           pointed  to by stream, returning nonzero if it is set.  The end-of-file
           indicator can be cleared only by the function clearerr().
    
           The function ferror() tests the error indicator for the stream  pointed
           to  by stream, returning nonzero if it is set.  The error indicator can
           be reset only by the clearerr() function.
    
           The function fileno() examines the  argument  stream  and  returns  its
           integer descriptor.
    
           For nonlocking counterparts, see unlocked_stdio(3).
    
    
    

    ERRORS

           These  functions  should  not fail and do not set the external variable
           errno.  (However, in case fileno() detects that its argument is  not  a
           valid stream, it must return -1 and set errno to EBADF.)
    
    
    

    ATTRIBUTES

       Multithreading (see pthreads(7))
           The  clearerr(),  feof(),  ferror(), and fileno() functions are thread-
           safe.
    
    
    

    CONFORMING TO

           The functions clearerr(), feof(), and ferror()  conform  to  C89,  C99,
           POSIX.1-2001, and POSIX.1-2008.
    
           The function fileno() conforms to POSIX.1-2001 and POSIX.1-2008.
    
    
    

    SEE ALSO

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