In my attempt to implement this, I stumbled over this weir behaviour:
```
// drop the first i elements
left_drop(0, (x, xs)) = x, xs;
left_drop(i, (x, xs)) = left_drop(i-1, xs);
// works as expected
// process = left_drop(3, (1, 2, 3, 4, 5));
// reverse a list
reverse((x, xs)) = reverse(xs), x;
reverse(x) = x;
// works as expected
// process = reverse((1, 2, 3, 4, 5))
// >> 5, 4, 3, 2, 1
// towards right_drop
process = left_drop(3, reverse((1, 2, 3, 4, 5)));
// >> ERROR : pattern matching failed, no rule of case {(<x>,<xs>,<i>) =>
left_drop(xs,i,1 : -); (<x>,<xs>,0) => x,xs; } matches argument list (2,1)
```
I have no clue what I am doing wrong here...
cheers
Till
--
Till Bovermann
https://tai-studio.org | http://lfsaw.de | https://www.instagram.com/_lfsaw/
> On 13. Nov 2020, at 11:34, Till Bovermann <lf...@lfsaw.de> wrote:
>
> Heya,
>
> has anyone done a list-shuffle for faust yet?
>
> something like:
> https://rosettacode.org/wiki/Knuth_shuffle#Haskell
>
>
> cheers
> Till
>
>
> --
> Till Bovermann
>
> https://tai-studio.org | http://lfsaw.de | https://www.instagram.com/_lfsaw/
>
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>
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