Re: [PATCH] Move ambitus print callback to scheme

[Nicolas Sceaux]

Le 27 août 09 à 22:38, Neil Puttock a écrit :

> 2009/8/26 Carl Sorensen <address@hidden>:
>
> > The patch looks good to me.
>
> Cheers.
>
> > You code the empty list as (list).  I typically code the empty list  
> > as '().
> >
> > It there a preference?  I suspect that we ought to be consistent,  
> > although
> > it's not highly important.  It could be part of the code janitor  
> > work,
> > though.
>
> It's just something I noticed in a few places internally (these all
> seem to be changes made by Nicolas) and thought it was clearer, though
> admittedly I haven't been particularly consistent when deciding
> between the two forms.  :)

According to R5RS, it is an error to modify a literal list.
If a function returns '(), the caller won't be allowed to
apply a modifying function on the result (eg. append!)

However, guile does not report modifying a literal list as an error,
and actually modifies it, so this is somewhat rhetorical.

nicolas