Re: shorter form of frequently-seen lisp idiom?

[David Kastrup <dak@gnu.org>]

Denis Bueno <dbueno@gmail.com> writes:

> On Sun, 20 Feb 2005 00:55:53 +0100, David Kastrup <dak@gnu.org> wrote:
>> August <fusionfive@comhem.se> writes:
>> 
>> > On lör, 2005-02-19 at 19:43 +0100, David Kastrup wrote:
>> >> Joe Corneli <jcorneli@math.utexas.edu> writes:
>> >>
>> >> > Is there a shorter way to concatenate a list of strings
>> >> > than this?
>> >> >
>> >> >  (eval (append (list 'concat) list-of-strings))
>> >> >
>> >> > Or more generally,
>> >> >
>> >> >  (eval (append (list 'function-that-acts-on-foos) list-of-foos))
>
> Or even:
>
>   (reduce #'function-that-acts-on-2-foos list-of-foos)
>
> Like:
>
>   (reduce #'concat '("aoeu" "1234" "htns")) =>
>   "aoeu1234htns"

Why should one do that?  Quite less efficient than using "apply", and
only available if cl has been loaded.

-- 
David Kastrup, Kriemhildstr. 15, 44793 Bochum