Re: How to mapcar or across a list?

[Barry Margolin <barmar@alum.mit.edu>]

In article <mailman.6968.1436991281.904.help-gnu-emacs@gnu.org>,
 Marcin Borkowski <mbork@mbork.pl> wrote:

> Hi there,
> 
> so here's my problem: I have a list of Boolean values, and I want to
> `mapcar' an `or' across it (IOW, I want to test whether at least one of
> them is true).  Of course, (apply #'or my-list) does not work.  Of
> course, I can (cl-reduce (lambda (x y) (or x y)) my-list) -- but is
> there a better method?

"mapcar" is not the right metaphor. It's for running the same function 
separately on each element of a list, not for combining elements.

-- 
Barry Margolin, barmar@alum.mit.edu
Arlington, MA
*** PLEASE post questions in newsgroups, not directly to me ***