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From: Emanuel Berg <embe8573@student.uu.se>
To: help-gnu-emacs@gnu.org
Subject: Re: How to mapcar or across a list?
Date: Thu, 16 Jul 2015 00:36:08 +0200	[thread overview]
Message-ID: <871tg9ujzb.fsf@nl106-137-147.student.uu.se> (raw)
In-Reply-To: 87oajdkqc7.fsf@kuiper.lan.informatimago.com

"Pascal J. Bourguignon" <pjb@informatimago.com>
writes:

> It's always a bad idea to use eval, because eval
> evalutes in the nil environment, not in the local
> lexical envrionment.
>
> Your example works because those lists are literal,
> but then you don't need or to know the answer.

OK, what about doing `cl-dolist' which we also had in
a recent discussion?

    (cl-dolist (b boolean-list-1) (when b (cl-return t))) ; t
    (cl-dolist (b boolean-list-2) (when b (cl-return t))) ; nil

-- 
underground experts united
http://user.it.uu.se/~embe8573




  reply	other threads:[~2015-07-15 22:36 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-15 20:14 How to mapcar or across a list? Marcin Borkowski
2015-07-15 20:42 ` Rasmus
2015-07-15 20:55   ` Marcin Borkowski
2015-07-15 22:21 ` Emanuel Berg
2015-07-15 22:21 ` John Mastro
     [not found] ` <mailman.6977.1436998965.904.help-gnu-emacs@gnu.org>
2015-07-15 22:28   ` Pascal J. Bourguignon
2015-07-15 22:36     ` Emanuel Berg [this message]
2015-07-15 22:57     ` never use `eval' (was: Re: How to mapcar or across a list?) Emanuel Berg
2015-07-15 23:27       ` John Mastro
2015-07-15 23:57         ` Emanuel Berg
2015-07-16  0:18           ` John Mastro
     [not found]         ` <mailman.6984.1437004760.904.help-gnu-emacs@gnu.org>
2015-07-16  0:04           ` Barry Margolin
     [not found]     ` <mailman.6982.1437001117.904.help-gnu-emacs@gnu.org>
2015-07-16  0:01       ` Barry Margolin
2015-07-16  1:13         ` Emanuel Berg
2015-07-17  0:55           ` Emanuel Berg
     [not found]           ` <mailman.7027.1437094623.904.help-gnu-emacs@gnu.org>
2015-07-17  1:39             ` never use `eval' Pascal J. Bourguignon
2015-07-17  2:16               ` Emanuel Berg
2015-07-17  8:36               ` Barry Margolin
2015-07-17  8:55                 ` Pascal J. Bourguignon
2015-07-16  0:22       ` Pascal J. Bourguignon
2015-07-16  1:11         ` Emanuel Berg
     [not found] <mailman.6968.1436991281.904.help-gnu-emacs@gnu.org>
2015-07-15 20:45 ` How to mapcar or across a list? Pascal J. Bourguignon
2015-07-15 21:02   ` Marcin Borkowski
2015-07-15 23:56 ` Barry Margolin

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