Re: What does "lacks a prefix" mean?

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

In article <mailman.6612.1436455429.904.help-gnu-emacs@gnu.org>,
 Filipp Gunbin <fgunbin@fastmail.fm> wrote:

> On 09/07/2015 01:24 +0200, Emanuel Berg wrote:
> 
> > BobD <daycandle@gmail.com> writes:
> >
> >> But of course. I'm fooling with old elisp that uses
> >> "setq" willy-nilly, defying the notational
> >> structuring with which latter day programmers have
> >> been (properly) indoctrinated. If I must, I can
> >> wedge some let's into the code.
> >
> > And: use `let*' if any variable depend on and uses
> > a previously defined one to do its computation.
> >
> > Actually I see no harm using let* all the time.
> 
> let* says "I need variables which depend on each other" and if they're
> really not, that look strange.
> 
> And probably it's a bit slower.

If it is, that's a misfeature of the compiler.

> And non-parallelizable theoretically :)

Regular let isn't parallelizable. It specifies that the value 
expressions are evaluated in order.

The only difference between the two is the environment within which 
later expressions are evaluated.

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