Re: Adding many elements to a list

[Thierry Volpiatto <thierry.volpiatto@gmail.com>]

David Kastrup <dak@gnu.org> writes:

> pjb@anevia.com (Pascal J. Bourguignon) writes:
>
>> David Kastrup <dak@gnu.org> writes:
>>
>>> pjb@informatimago.com (Pascal J. Bourguignon) writes:
>>>
>>>> So better use (require 'cl) (push new-item list)
>>>>    or (cons new-item list)
>>>>    or (append (list new-items...) list)
>>>
>>> (require 'cl) is quite unnecessary for all of the mentioned
>>> alternatives.
>>
>> Not on emacs version < 23.
>
> Nonsense.  push&pop were officially announced in Emacs 21.1.  I may be
> mistaken, but I think they have been there even earlier.
>
> And the other options certainly were there from the earliest versions of
> GNU Emacs.

There is two implementation of push, one in cl that use setf and another
one in elisp (that doesn't need to require cl) that use cons.

-- 
A + Thierry Volpiatto
Location: Saint-Cyr-Sur-Mer - France