/usr/share/calc/help/error 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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error - generate a value of specified error type
SYNOPSIS
error([n])
TYPES
n integer, 0 <= n <= 32767; defaults to errno()
return null value or error value
DESCRIPTION
If n is zero, error(n) returns the null value.
For positive n, error(n) returns a value of error type n.
error(n) sets calc_errno to n so that until another error-value
is returned by some function, errno() will return the value n.
EXAMPLE
; errmax(errcount()+1)
20
; a = error(10009)
; a
Error 10009
; strerror(a)
"Bad argument for inverse"
LIMITS
none
LINK LIBRARY
none
SEE ALSO
errcount, errmax, errorcodes, iserror, errno, strerror, newerror,
stoponerror
## 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: error,v 30.1 2007/03/16 11:10:42 chongo Exp $
## @(#) $Source: /usr/local/src/cmd/calc/help/RCS/error,v $
##
## Under source code control: 1995/12/18 03:30:59
## File existed as early as: 1995
##
## chongo <was here> /\oo/\ http://www.isthe.com/chongo/
## Share and enjoy! :-) http://www.isthe.com/chongo/tech/comp/calc/
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