FCLOSE(3) Library Functions Manual FCLOSE(3)
fclose -- close a stream
Standard C Library (libc, -lc)
The fclose() 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 fflush(3).
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.
[EBADF] The argument stream is not an open stream.
The fclose() function may also fail and set errno for any of the errors
specified for the routines close(2) or fflush(3).
close(2), fflush(3), fopen(3), setbuf(3)
The fclose() function conforms to ANSI X3.159-1989 (``ANSI C89'').
NetBSD 6.1.5 June 4, 1993 NetBSD 6.1.5