Sujet : Re: Undefined in LISP
De : ldo (at) *nospam* nz.invalid (Lawrence D'Oliveiro)
Groupes : comp.lang.lispDate : 22. Mar 2025, 22:58:16
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <vrnbpo$rkfk$2@dont-email.me>
References : 1 2 3
User-Agent : Pan/0.162 (Pokrosvk)
On Sat, 22 Mar 2025 12:07:14 +0000, Daniel Cerqueira wrote:
Lawrence D'Oliveiro <ldo@nz.invalid> writes:
On Fri, 21 Mar 2025 22:47:38 +0000, Daniel Cerqueira wrote:
>
I would like to know your thoughts, about what being undefined
actually is. Should an undefined expression be represented by a
symbol, or should an undefined expression be silent (without
returning a symbol)?
>
Should an attempt to evaluate such an expression even terminate?
My opinion is that it should...
So undefined behaviour cannot be really undefined, it must return some
kind of value we are going to arbitrarily name as “undefined”?
Undefined in LISP
Re: Undefined in LISP
