* [Caml-list] No patterns of type vect
@ 2003-05-04 16:07 WatchDog
2003-05-04 16:25 ` David Brown
0 siblings, 1 reply; 2+ messages in thread
From: WatchDog @ 2003-05-04 16:07 UTC (permalink / raw)
To: caml-list
Hello !
I'm using CamlLight 0.74, and I've just noticed it is not possible to
use a pattern-matching with patterns of type vect.
For instance, the dummy function below is not valid :
let head = function
[||] -> failwith "no_head"
| t -> t.(0) ;;
OK, I acknowledge that lists would be more suitable for such a function,
but why is it forbidden to match on vectors (or arrays, for the
Objective Camlists) ?
Thanks.
JB, Paris.
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* Re: [Caml-list] No patterns of type vect
2003-05-04 16:07 [Caml-list] No patterns of type vect WatchDog
@ 2003-05-04 16:25 ` David Brown
0 siblings, 0 replies; 2+ messages in thread
From: David Brown @ 2003-05-04 16:25 UTC (permalink / raw)
To: WatchDog; +Cc: caml-list
On Sun, May 04, 2003 at 06:07:25PM +0200, WatchDog wrote:
> Hello !
> I'm using CamlLight 0.74, and I've just noticed it is not possible to
> use a pattern-matching with patterns of type vect.
> For instance, the dummy function below is not valid :
>
> let head = function
> [||] -> failwith "no_head"
> | t -> t.(0) ;;
>
> OK, I acknowledge that lists would be more suitable for such a function,
> but why is it forbidden to match on vectors (or arrays, for the
> Objective Camlists) ?
It works in objective caml, so I suspect it just hadn't been done yet in
CamlLight.
Dave
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