fflush man page on Ultrix

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fclose(3s)							    fclose(3s)

Name
       fclose, fflush - close or flush a stream

Syntax
       #include <stdio.h>

       fclose(stream)
       FILE *stream;

       fflush(stream)
       FILE *stream;

Description
       The  routine causes any buffers for the named stream to be emptied, and
       the file to be closed.  Buffers allocated by the standard  input/output
       system are freed.  The routine is performed automatically upon calling

       The  routine causes any buffered data for the named output stream to be
       written to that file.  If stream is NULL, all open output  streams  are
       flushed.	 The stream remains open.

Diagnostics
       These functions return EOF if buffered data cannot be transferred to an
       output stream.

Environment
       If not called in POSIX mode, these functions return EOF	if  stream  is
       not  associated with an output file.  In POSIX mode, if stream is asso‐
       ciated with an input file, the file pointer is positioned following the
       last byte read from that stream.

See Also
       close(2), fopen(3s), setbuf(3s)

								    fclose(3s)
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