NAME
    xor - bitwise exclusive or of a set of integers

SYNOPSIS
    xor(x1, x2, ...)

TYPES
    x1, x2, ... integer

    return	integer

DESCRIPTION
    Compute the bitwise exclusive or of a set of integers.

    For one argument xor(x1) returns x1.  For two arguments,
    xor(x1,x2) returns the bitwise exclusive or of x1 and x2.
    For each bit pair:

	0 0 xor returns 0
	0 1 xor returns 1
	1 0 xor returns 1
	1 1 xor returns 0

    For more than two arguments, xor(x1,x2,x3, ..., xn) returns:

	xor(...xor(xor(x1,x2), x3), ... xn)

EXAMPLE
    ; print xor(2), xor(5, 3, -7, 2, 9)
    2 10

LIMITS
    The number of arguments is not to exceed 1024.

LINK LIBRARY
    NUMBER *qxor(NUMBER *x1, NUMBER *x2)

SEE ALSO
    operator

## 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: xor,v 30.1 2007/03/16 11:10:42 chongo Exp $
## @(#) $Source: /usr/local/src/cmd/calc/help/RCS/xor,v $
##
## Under source code control:	1995/10/05 04:52:27
## 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/