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Reverse pop, return value
From: |
LanX |
Subject: |
Reverse pop, return value |
Date: |
Tue, 17 Nov 2009 07:32:53 -0800 (PST) |
User-agent: |
G2/1.0 |
Hi
I tried to realize a reverse pop which pops from the end of the list,
but the code get's "lengthy"....
I need to define a local variable to hold the return value... is there
a more elegant way to do it?
----------- M-x ielm
ELISP> (defun rpop (LIST)
"reverse pop"
(let
( (ret (car (last LIST))) )
(nbutlast LIST 1)
ret
)
)
rpop
ELISP> (setq list '(a b c d e f g h i j))
(a b c d e f g h i j)
ELISP> (rpop list)
j
ELISP> (rpop list)
i
ELISP> (rpop list)
h
-------------
There must be a technique to simplify this !?!
Thanx
Rolf
- Remove last element in a list, Nordlöw, 2009/11/17
- Re: Remove last element in a list, LanX, 2009/11/17
- Reverse pop, return value,
LanX <=
- Re: Reverse pop, return value, Lennart Borgman, 2009/11/17
- Message not available
- Re: Reverse pop, return value, LanX, 2009/11/17
- Re: Reverse pop, return value, Barry Margolin, 2009/11/17
- Re: Reverse pop, return value, LanX, 2009/11/17
- Re: Reverse pop, return value, Barry Margolin, 2009/11/19
- Re: Reverse pop, return value, David Kastrup, 2009/11/17
- Re: Reverse pop, return value, LanX, 2009/11/17
Re: Remove last element in a list, Barry Margolin, 2009/11/17