Re: ord_select ?

On Wed, Feb 12, 2014 at 4:07 AM, Nicos Angelopoulos <
[email protected]> wrote:

> in library  library(ordsets) I would like to have the  same behaviour as
> select/3 for lists,
> in that if the element is not in the set the predicate should fail.
> ...
> 1. am i missing the correct predicate to achieve this ?
>

Since ordsets are implemented as lists, you should be able to use select/3
directly.


> 2. would it make sense to include some such like predicate to the library?
>

That seems reasonable to me.  For large ordsets, a specialized version of
select/3 could get better performance by utilizing the sort order.

-- 
Michael
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