NAME
    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
    Note that by default, errmax() is 0 so unless errmax() is
    increased you will get:

    > ba = error(10009)
    Error 10009 caused errcount to exceed errmax

    > errmax(errcount()+1)
	   0
    > a = error(10009)
    > a
	   Error 10009

LIMITS
    none

LINK LIBRARY
    none

SEE ALSO
    errcount, errmax, errorcodes, iserror, errno, strerror, newerror

## Copyright (C) 1999  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.
## 59 Temple Place, Suite 330, Boston, MA  02111-1307, USA.
##
## @(#) $Revision: 29.1 $
## @(#) $Id: error,v 29.1 1999/12/14 09:15:47 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://reality.sgi.com/chongo/
## Share and enjoy!  :-)	http://reality.sgi.com/chongo/tech/comp/calc/