close a stream
function dissociates the named stream from its
underlying file or set of functions. If the stream was being used for
output, any buffered data is written first, using
Upon successful completion 0 is returned. Otherwise,
EOF is returned and the global variable
errno is set to indicate the error. In either case no
further access to the stream is possible.
- The argument stream is not an open stream.
fclose() function may also fail and
set errno for any of the errors specified for the
routines close(2) or
close(2), fflush(3), fopen(3), setbuf(3)
fclose() function conforms to
fclose() function first appeared in
Version 7 AT&T UNIX.