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FCLOSE(3V)                                                          FCLOSE(3V)



NAME
       fclose, fflush - close or flush a stream

SYNOPSIS
       #include <&lt;stdio.h>&gt;

       fclose(stream)
       FILE *stream;

       fflush(stream)
       FILE *stream;

DESCRIPTION
       fclose()  writes out any buffered data for the named stream, and closes
       the named stream.  Buffers allocated by the standard input/output  sys-
       tem are freed.

       fclose()  is  performed  automatically  for all open files upon calling
       exit(3).

       fflush() writes any unwritten data for an output stream  or  an  update
       stream in which the most recent operation was not input to be delivered
       to the host environment to the file;  otherwise  it  is  ignored.   The
       named stream remains open.

SYSTEM V DESCRIPTION
       When  fflush()  is  called  on a  stream opened for reading, any unread
       data buffered in the stream is invalidated.  When fflush() is called on
       a stream opened for reading, if the file is not already at EOF, and the
       file is one capable of seeking, the file offset of the underlying  open
       file  description  is  adjusted  so the next operation on the open file
       description deals with the byte after the last byte read from or  writ-
       ten to the stream being flushed.

RETURN VALUES
       fclose() and fflush() return:

       0      on success.

       EOF    if  any  error  (such  as trying to write to a file that has not
              been opened for writing) was detected.

SEE ALSO
       close(2V), exit(3), fopen(3V), setbuf(3V)



                                22 January 1990                     FCLOSE(3V)