/usr/share/calc/help/fclose is in apcalc-common 2.12.4.4-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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fclose - close a file
SYNOPSIS
fclose(fd)
TYPES
fd file
return nul or int
DESCRIPTION
This function closes the open file associated with the descriptor fd.
When this is done, the file value associated with the file remains
a file value, but appears 'closed', and cannot be used in further
file-related calls (except fclose) without causing errors. This same
action occurs to all copies of the file value. You do not need to
explicitly close all the copies of a file value.
Standard input, standard output and standard error are always opened
and cannot be closed.
The truth value of a closed file is FALSE.
The fclose function returns the numeric value of errno if
there had been an error using the file, or the null value if
there was no error.
Closing a closed file is permitted. Fclose returns null in
this case.
EXAMPLE
; fd = fopen("/etc/motd", "r")
; if (fd) print "file is open";
file is open
; err = fclose(fd);
; if (isnull(err)) print "close successful"; else strerror(err);
close successful
; if (!fd) print "file is closed";
file is closed
LIMITS
fd != files(0) && fd != files(1) && fd != files(2)
LINK LIBRARY
none
SEE ALSO
errno, fclose, feof, ferror, fflush, fgetc, fgetline, fgets, files, fopen,
fprintf, fputc, fputs, fseek, fsize, ftell, isfile, printf, prompt
## Copyright (C) 1999-2006 Landon Curt Noll
##
## Calc is open software; you can redistribute it and/or modify it under
## the terms of the version 2.1 of the GNU Lesser General Public License
## as published by the Free Software Foundation.
##
## Calc is distributed in the hope that it will be useful, but WITHOUT
## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
## or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
## Public License for more details.
##
## A copy of version 2.1 of the GNU Lesser General Public License is
## distributed with calc under the filename COPYING-LGPL. You should have
## received a copy with calc; if not, write to Free Software Foundation, Inc.
## 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
##
## @(#) $Revision: 30.1 $
## @(#) $Id: fclose,v 30.1 2007/03/16 11:10:42 chongo Exp $
## @(#) $Source: /usr/local/src/cmd/calc/help/RCS/fclose,v $
##
## Under source code control: 1994/10/27 03:04:16
## File existed as early as: 1994
##
## chongo <was here> /\oo/\ http://www.isthe.com/chongo/
## Share and enjoy! :-) http://www.isthe.com/chongo/tech/comp/calc/
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