* [Caml-list] cadr?
@ 2003-11-05 4:30 Dustin Sallings
2003-11-05 4:47 ` Dustin Sallings
0 siblings, 1 reply; 2+ messages in thread
From: Dustin Sallings @ 2003-11-05 4:30 UTC (permalink / raw)
To: Caml Mailing List
This seems like a stupid question, but in my endless search for
performance, I tried converting a hashtbl to an assoc list (since it's
only got four predefined elements). I'm having trouble figuring out
what to do with this thing (other than assoc):
let tmp = List.map (fun x -> (x, "hi" ^ (string_of_int x))) [1; 2; 3;
4; 5];;
val tmp : (int * string) list =
[(1, "hi1"); (2, "hi2"); (3, "hi3"); (4, "hi4"); (5, "hi5")]
I want to do something like this:
List.map (function x -> print_endline(List.nth x 1)) tmp;;
What am I missing?
--
Dustin Sallings
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [Caml-list] cadr?
2003-11-05 4:30 [Caml-list] cadr? Dustin Sallings
@ 2003-11-05 4:47 ` Dustin Sallings
0 siblings, 0 replies; 2+ messages in thread
From: Dustin Sallings @ 2003-11-05 4:47 UTC (permalink / raw)
To: Dustin Sallings; +Cc: Caml Mailing List
On Nov 4, 2003, at 20:30, Dustin Sallings wrote:
>
> This seems like a stupid question, but in my endless search for
> performance, I tried converting a hashtbl to an assoc list (since it's
> only got four predefined elements). I'm having trouble figuring out
> what to do with this thing (other than assoc):
>
> ocaml
> val tmp : (int * string) list =
> [(1, "hi1"); (2, "hi2"); (3, "hi3"); (4, "hi4"); (5, "hi5")]
>
> I want to do something like this:
>
> List.map (function x -> print_endline(List.nth x 1)) tmp;;
>
> What am I missing?
Props to the cardboard programmer. It's amazing how you can stare at
something and not get it until you ask for help.
I need (k, v) as the argument to my function.
--
Dustin Sallings
-------------------
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