Re: C++ declaration style programming?

[Han-Wen Nienhuys]

address@hidden writes:
> 
> (let* ((var1 (+ (something) 2))
>        (var2 (+ (something var1) var1))
>        (var3 (something var1 var2)))
> 
> If you need to change var3 at a later point, just give it another name:
> 
>   (let ((var3-2 (+ (something-else var3))))
>     (...
> 
> instead of set!-ting it. The problem with set! in a lexically scoped
> language is that you can change the binding of a variable defined at a
> higher level by mistake:

I know about all this. The example was a little contrived. The things
I have in mind are statements which currently return SCM_UNSPECIFIED.

I think it looks stupid to do

  (let* ((a (something))
         (unused (display a))
         (b (something-else a))
         ..
         )

which introduces a variable unused, and puts emphasis on the
declaration, not on the main action of the statements.

-- 

 Han-Wen Nienhuys   |   address@hidden   |   http://www.xs4all.nl/~hanwen