[plt-scheme] The role of proper and improper lists?

From: Matthias Felleisen (matthias at ccs.neu.edu)
Date: Fri Jan 25 13:40:27 EST 2008

On Jan 25, 2008, at 1:34 PM, Bill Wood wrote:

> I rather like having a tuple type (fixed-length heterogeneous sequence
> ala SML or Python) distinct from proper lists.  When programming in  
> lisp
> or Scheme I sometimes use improper lists for tuples -- the  
> difference in
> structure acts as a reminder that the type is conceptually different.
>  -- Bill Wood

And if you use structures in PLT Scheme (and soon in R6 Schemes near  
you), you get the same benefits as in SML or Python. -- Matthias

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