fclose — close a stream
flushes the stream pointed to by
stream (writing any buffered
output data using fflush(3)) and closes the
underlying file descriptor.
Upon successful completion 0 is returned. Otherwise,
EOF is returned and
errno is set to indicate the
error. In either case any further access (including another
fclose()) to the stream
results in undefined behavior.
The file descriptor underlying
stream is not valid.
For an explanation of the terms used in this section, see attributes(7).
only the user-space buffers provided by the C library. To
ensure that the data is physically stored on disk the kernel
buffers must be flushed too, for example, with sync(2) or fsync(2).
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This code is derived from software contributed to Berkeley by
Chris Torek and the American National Standards Committee X3,
on Information Processing Systems.
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(#)fclose.3 6.7 (Berkeley) 6/29/91
Converted for Linux, Mon Nov 29 15:19:14 1993, faithcs.unc.edu
Modified 2000-07-22 by Nicolás Lichtmaier <nickdebian.org>