/usr/share/calc/help/strerror is in apcalc-common 2.12.5.0-1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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strerror - returns a string describing an error value
SYNOPSIS
strerror([x])
TYPES
x error-value or integer in [0, 32767], defaults to errno()
return string
DESCRIPTION
If x is the error-value with index n, strerror(x) and strerror(n)
return one of:
a system-generated message,
a calc-generated description,
a user-defined description created by newerror(str),
the string "Error n",
where, in the last form, n is represented decimally.
EXAMPLE
System error messages may be different for different systems.
; errmax(errcount()+3)
0
; strerror(2)
"No such file or directory"
; x = 3 * ("a" + "b")
; print strerror(x)
Bad arguments for +
; a = newerror("alpha")
; print strerror(a)
alpha
; print strerror(999)
Error 999
; a = 1/0
; print strerror()
Division by zero
LIMITS
none
LINK LIBRARY
none
SEE ALSO
strcat, strcpy, strlen, strncmp, strncpy, strpos,
strprintf, strscan, strscanf, substr,
errcount, errmax, error, iserror, errno, newerror, errorcodes,
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: strerror,v 30.1 2007/03/16 11:10:42 chongo Exp $
## @(#) $Source: /usr/local/src/bin/calc/help/RCS/strerror,v $
##
## Under source code control: 1996/04/30 03:05:18
## File existed as early as: 1996
##
## chongo <was here> /\oo/\ http://www.isthe.com/chongo/
## Share and enjoy! :-) http://www.isthe.com/chongo/tech/comp/calc/
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