Re: pattern matching

sorry, overlooked sub matching.

You can match several elements in one pattern, just take care to have the "shorter"
cases first.
  | []  ->
  | head :: [] -> (* equivalent to [head], all list patterns can be written with
square brackets *)
  | head :: second :: rest -> (* here rest can be [] *)

This sounds like you did not understand the explanations I gave.

/Str.

On 29.03.2016 10:18, 'Mr. Herr' [email protected] [ocaml_beginners] wrote:
>  
>
>
>
> On 29.03.2016 06:41, Douglas Lewit [email protected] [ocaml_beginners] wrote:
>>  
>> I also gave something like this a try, but I ended up with a couple of error
>> messages:
>>
>> */let pack list = match list with/*
>> */|[ ] -> [ ]/*
>> */|head :: tail -> match tail with/*
>> */|[ ] -> [ ]/*
>> */headOfTail :: tailOfTail -> if head = headOfTail then..... ( more code )/*
>> */
>> /*
>> I thought it was clever, but either I just ended up with an empty list, a
>> one-element list, or the compiler just rejected it.  I'm starting to feel a little
>> dumb!  But I'll keep at it.
>>
> tailOfTail is a list, not an element!
>
> /Str.
>