NAME
    free - free the memory used to store values of lvalues

SYNOPSIS
    free(a, b, ...)

TYPES
    a, b, ...	any

    return	null value

DESCRIPTION
    Those of the arguments a, b, ... that specify lvalues are assigned
    the null value, effectively freeing whatever memory is used to
    store their current values.	 Other arguments are ignored.

    free(.) frees the current "old value".

EXAMPLE
    ; a = 7
    ; mat M[3] = {1, list(2,3,4), list(5,6)}
    ; print memsize(a), memsize(M)
    80 736

    ; free(a, M[1])
    ; print memsize(a), memsize(M)
    16 424

LIMITS
    none

LINK LIBRARY
    none

SEE ALSO
    freeglobals, freestatics, freeredc

## 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.
## 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
##
## @(#) $Revision: 30.1 $
## @(#) $Id: free,v 30.1 2007/03/16 11:10:42 chongo Exp $
## @(#) $Source: /usr/local/src/cmd/calc/help/RCS/free,v $
##
## Under source code control:	1997/09/06 20:03:35
## File existed as early as:	1997
##
## chongo <was here> /\oo/\	http://www.isthe.com/chongo/
## Share and enjoy!  :-)	http://www.isthe.com/chongo/tech/comp/calc/
