Re: [Caml-list] Discarding elements from a list

[oliver@first.in-berlin.de (Oliver Bandel)]

On Sun, Jan 26, 2003 at 08:01:16PM +0100, Oliver Bandel wrote:
[...]
> 
> a) Converting the list to an array, shorten the array,
>    converting back to a list, using the list in a functional
>    manner.
> 
> b) Using pattern match to throw away the first element, then
>    working in the part after the "->" with a function, which
>    works on the rest of the list.
> 
> c) using a function, which uses an index, for counting, at which
>    position we are inside of the list


OK, I've found a very simple solution. :)

OK, it is functional programming.....

OK, it is Ocaml...

OK, I use pattern matching....


OK, this is my solution:



let discard_first lis = match lis with
       []     -> []
     | hd::tl -> tl


So, the main way to get a solution to a program in fp
is simply: write a function for the simplest case,
and then use that function...


The last days I often, over and over again found,
that I most of the times think more complicated,
than a solution in FP is!

Maybe this "think complicated" is an imperative illness.  (?!)

And more and more I see, what the difference between FP and IP is:
It's much more easy than an IP-programmer thought that it is.

It's unbelievable, that I every day see more examples of
how easy programming can be, if it is functional.


nearly unbelievable....

Ciao,
   Oliver
-------------------
To unsubscribe, mail caml-list-request@inria.fr Archives: http://caml.inria.fr
Bug reports: http://caml.inria.fr/bin/caml-bugs FAQ: http://caml.inria.fr/FAQ/
Beginner's list: http://groups.yahoo.com/group/ocaml_beginners