Re: stupid mail about letrec

[Neil Jerram]

>>>>> "Marius" == Marius Vollmer <address@hidden> writes:

    Marius> address@hidden (Thomas Bushnell, BSG) writes:
    >> Sven Hartrumpf <address@hidden> writes:
    >> 
    >> > >So chicken and MIT-scheme don't give you an error for the letrec
    >> > >expression that you quoted before?
    >> > 
    >> > No, all return 8 for (letrec ((a 2) (b (* a 4))) b).
    >> > Also mzscheme, bigloo, chez, sisc, scsh, gauche, gambit.
    >> > Only SCM behaves like guile.
    >> > This might make an interesting posting in comp.lang.scheme :-)
    >> 
    >> Yes, but it is an error nontheless.

    Marius> However, I think it is an interesting extension.  Internal defines
    Marius> would behave more 'natural' that way.  It's probably better to 
define
    Marius> a new letrec* form, tho, instead of changing the definition of 
letrec.

I'm pretty sure there was a big discussion about this a few years ago.

        Neil