From: Intransition <transfire@...>
Date: 2012-03-19T02:52:01+09:00
Subject: Re: why no decreasing enumerations?

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On Sunday, March 18, 2012 1:21:21 PM UTC-4, Jan E. wrote:
>
> Hi,
>
> I think you misunderstand the purpose of ranges. They aren't meant to be 
> ordered lists but rather some kind of abstract interval (like in 
> mathematics). You can check if a specific object is in the range, but 
> you may not even be able to enumerate all the elements of the range.
>

Ranges server dual purpose, so I don't think that's the reason. I think 
there is no other reason then no one has implemented support for descending 
ranges. It does require a new method #pred (opposite of #succ) though.

Of course, then again matz can have some peculiar objections to things some 
times, so I could be wrong.


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<br><br>On Sunday, March 18, 2012 1:21:21 PM UTC-4, Jan E. wrote:<blockquote class="gmail_quote" style="margin: 0;margin-left: 0.8ex;border-left: 1px #ccc solid;padding-left: 1ex;">Hi,<p>I think you misunderstand the purpose of ranges. They aren't meant to be <br>ordered lists but rather some kind of abstract interval (like in <br>mathematics). You can check if a specific object is in the range, but <br>you may not even be able to enumerate all the elements of the range.</p></blockquote><div><br>Ranges server dual purpose, so I don't think that's the reason. I think there is no other reason then no one has implemented support for descending ranges. It does require a new method #pred (opposite of #succ) though.<br><br>Of course, then again matz can have some peculiar objections to things some times, so I could be wrong.<br><br></div>
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