"ocaml_beginners"::[] null?

I'm curious why SML of NJ includes a null function as
part of its List module but OCaml left it out. I know
its usage has been marginalized by pattern matching
but the same could have been said for ML.

--mr

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On Sun, 12 Nov 2006, michael rice wrote:

> I'm curious why SML of NJ includes a null function as
> part of its List module but OCaml left it out. I know
> its usage has been marginalized by pattern matching
> but the same could have been said for ML.

It doesn't seem to be very useful. Just do that:
if l = [] then ...
else ...

Martin

--
Martin Jambon, PhD
http://martin.jambon.free.fr

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On Sun, Nov 12, 2006 at 01:25:34PM -0800, Martin Jambon wrote:
> On Sun, 12 Nov 2006, michael rice wrote:
>
> > I'm curious why SML of NJ includes a null function as
> > part of its List module but OCaml left it out. I know
> > its usage has been marginalized by pattern matching
> > but the same could have been said for ML.
>
> It doesn't seem to be very useful. Just do that:
>; if l = [] then ...
> else ...
>
[...]

Doing some OO-wrapping around this, it maybe useful for
a lot of people

Ciao,
Oliver

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