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From: Emanuel Berg <embe8573@student.uu.se>
To: help-gnu-emacs@gnu.org
Subject: Re: Why is booleanp defined this way?
Date: Sat, 18 Apr 2015 23:24:59 +0200	[thread overview]
Message-ID: <87sibxm8no.fsf@debian.uxu> (raw)
In-Reply-To: barmar-D92652.23111817042015@88-209-239-213.giganet.hu

Barry Margolin <barmar@alum.mit.edu> writes:

>>>> I never used `booleanp' and I never experienced
>>>> that the boolean built-in type was missing from
>>>> my "ontology".
>>> If you how to write (and grok) an 'if' you have
>>> boolean in your ontology. That you dont know that
>>> you know is ok
>>  I know what a *boolean* is, just not why I would
>> need a built-in data type to express it.
> It's not a built-in type. It's a conceptual type,
> like "list".

You misunderstand.

I said what I thought the function to be: type
predicate, not normalizer of booleans.

Then I hear there is a general need for the boolean
type in programming. I also hear that the type
predicate is a way, the first step, to bridge that
hole in Elisp.

I say there is no need for a boolean type.

Now Mr. Adams have impressed us all by his practical
resourcefulness by greping the Emacs source for the
function and found that this type predicate is used
very rarely and for a likewise small domain of tasks.

Conclusion: Counter-intuitive the seemingly general
purpose of the predicate, there is no corresponding
implementation field, so the statement that it is
a patch for a missing cornerstone in programming in
general is incorrect.

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


  parent reply	other threads:[~2015-04-18 21:24 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <mailman.946.1429302909.904.help-gnu-emacs@gnu.org>
2015-04-17 20:55 ` Why is booleanp defined this way? Pascal J. Bourguignon
2015-04-17 23:20 ` Barry Margolin
2015-04-17 23:30   ` Emanuel Berg
2015-04-18  0:43     ` Pascal J. Bourguignon
2015-04-18  3:13       ` Barry Margolin
2015-04-18  3:12     ` Barry Margolin
2015-04-18  2:01 ` Rusi
2015-04-18  2:23   ` Emanuel Berg
2015-04-18  2:33     ` Rusi
2015-04-18  2:55       ` Emanuel Berg
2015-04-18  3:11         ` Barry Margolin
2015-04-18  3:35           ` Rusi
2015-04-18  4:56             ` Barry Margolin
2015-04-19 23:08               ` Emanuel Berg
2015-04-19 23:00             ` Emanuel Berg
2015-04-18 21:24           ` Emanuel Berg [this message]
2015-04-18  7:52         ` Marcin Borkowski
     [not found]         ` <mailman.997.1429343558.904.help-gnu-emacs@gnu.org>
2015-04-18 12:43           ` Rusi
2015-04-18  4:09       ` Pascal J. Bourguignon
2015-04-18  5:00         ` Rusi
2015-04-18  3:50   ` Pascal J. Bourguignon
2015-04-18  5:03     ` Stefan Monnier
2015-04-17 20:34 Marcin Borkowski
2015-04-17 20:49 ` Jorge A. Alfaro-Murillo
     [not found] ` <mailman.962.1429303822.904.help-gnu-emacs@gnu.org>
2015-04-17 23:06   ` Emanuel Berg
2015-04-18  0:41     ` Pascal J. Bourguignon
2015-04-18  1:06       ` Emanuel Berg
2015-04-18  1:23         ` Pascal J. Bourguignon
2015-04-18  7:44         ` Marcin Borkowski
2015-04-18  8:37         ` Stefan Nobis
2015-04-19 23:15           ` Emanuel Berg
2015-04-18  2:37 ` Drew Adams
2015-04-18  6:13 ` Tassilo Horn

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