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77 lines
2.1 KiB
Plaintext
77 lines
2.1 KiB
Plaintext
NAME
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remove - remove the last member of a list
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SYNOPSIS
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remove(lst)
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TYPES
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lst lvalue whose current value is a list
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return any
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DESCRIPTION
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If lst has no members, remove(lst) returns the null value and does
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not change lst.
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If lst has n members where n > 0, remove(lst) returns the value of
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lst[[n-1]] and deletes this value from the end of the lst, so that
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lst now has n - 1 members and for 0 <= i < n - 1, lst[[i]] returns
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what it would have returned before the remove operation.
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EXAMPLE
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> lst = list(2,"three")
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list (2 elements, 2 nonzero):
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[[0]] = 2
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[[1]] = "three"
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> remove(lst)
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"three"
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> print lst
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list (1 elements, 1 nonzero):
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[[0]] = 2
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> remove(lst)
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2
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> print lst
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list (0 elements, 0 nonzero)
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> remove(lst)
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> print lst
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list (0 elements, 0 nonzero)
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LIMITS
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none
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LINK LIBRARY
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none
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SEE ALSO
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append, delete, insert, islist, list, push, pop, rsearch, search, size
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## Copyright (C) 1999 Landon Curt Noll
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##
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## Calc is open software; you can redistribute it and/or modify it under
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## the terms of the version 2.1 of the GNU Lesser General Public License
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## as published by the Free Software Foundation.
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##
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## Calc is distributed in the hope that it will be useful, but WITHOUT
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## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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## or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
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## Public License for more details.
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##
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## A copy of version 2.1 of the GNU Lesser General Public License is
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## distributed with calc under the filename COPYING-LGPL. You should have
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## received a copy with calc; if not, write to Free Software Foundation, Inc.
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## 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
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##
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## @(#) $Revision: 29.1 $
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## @(#) $Id: remove,v 29.1 1999/12/14 09:16:04 chongo Exp $
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## @(#) $Source: /usr/local/src/cmd/calc/help/RCS/remove,v $
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##
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## Under source code control: 1996/03/12 23:10:01
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## File existed as early as: 1996
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##
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## chongo <was here> /\oo/\ http://reality.sgi.com/chongo/
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## Share and enjoy! :-) http://reality.sgi.com/chongo/tech/comp/calc/
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