[erlang-patches] Minor additions to the lists stdlib module

[Fredrik]

Your patch has been into review and the feedback was:

Hi

We have decided to not include this patch, the lists module is full :-) 
and we are now rather restrictive in what we add to it.

The convenience functions you added are already available with, 
array:foldl(Fun, [], array:from_list(List)) with some more functionality 
such as foldr, map and so on. Also the array module probably is a better 
datastructure to use if you need to access by index.

Nice patch and sorry for the lost effort.


BR Fredrik Gustafsson
Erlang OTP Team
On 12/16/2012 06:57 AM, Jeremy Ong wrote:
> git fetch git://github.com/jeremyong/otp.git 
> <http://github.com/jeremyong/otp.git> lists_module_additions
>
> https://github.com/jeremyong/otp/compare/erlang:master...jeremyong:lists_module_additions
>
> https://github.com/jeremyong/otp/compare/erlang:master...jeremyong:lists_module_additions.patch
>
> I have added a few convenience functions for operating on lists in the 
> stdlib.
>
> These functions are ifoldl, ifoldr, imap, ifilter, and ipartition (the 
> i stands for "index).
>
> Often times, the index of an element is important when transforming a 
> list (for example, if I want to perform an operation on an odd-indexed 
> elements or tag each element of a list with the index formatted in 
> some way). These functions are very similar to the usual ones but the 
> lambdas passed to them take an additional argument which is the index 
> of each element as it gets passed to the lambda.
>
> I have tried to follow all directions outlined in the github wiki and 
> appreciate any and all feedback.
>
> Cheers,
> Jeremy
>
>
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