hash

Calc Software Package for Number Calc

NAME
    hash - return the calc hash value

SYNOPSIS
    hash(x_1 [, x_2, x_3, ...])

TYPES
    x_1, x_1, ...	any

    return		integer v, 0 <= v < 2^32

DESCRIPTION
    Returns a hash value for one or more values of arbitrary types.

    The calc hash value is based on the core Fowler/Noll/Vo hash
    known as FNV-1.  The return value, however, cannot be used
    as an FNV hash value because calc's internal function also
    takes into account more abstract concepts such as data types.

    See:

	 http://www.isthe.com/chongo/tech/comp/fnv/

    information about the Fowler/Noll/Vo (FNV) hash.

EXAMPLE
    ; a = isqrt(2e1000); s = "xyz";
    ; hash(a,s)
	    2378490456

LIMITS
    The number of arguments is not to exceed 1024.

LINK LIBRARY
    none

SEE ALSO
    sha, sha1, md5

## 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.
## 59 Temple Place, Suite 330, Boston, MA  02111-1307, USA.
##
## @(#) $Revision: 29.5 $
## @(#) $Id: hash,v 29.5 2006/06/22 23:49:22 chongo Exp $
## @(#) $Source: /usr/local/src/cmd/calc/help/RCS/hash,v $
##
## Under source code control:	1996/03/12 23:10:01
## 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/