Find on sorted range slower?
Tofu Ninja via Digitalmars-d-learn
digitalmars-d-learn at puremagic.com
Fri Aug 7 02:03:57 PDT 2015
On Friday, 7 August 2015 at 08:18:04 UTC, Nordlöw wrote:
> On Friday, 7 August 2015 at 05:21:32 UTC, Tofu Ninja wrote:
>> HAHAH wow, this is hilarious, I just checked, nothing in
>> std.algo takes advantage of sorted ranges, sort doesn't even
>> take advantage of it! You pass a sorted range into sort and it
>> will just resort it! Wow....
>
> Who fixes this?
>
> I can look into it... is there an issue for this?
I have no idea, but it is pretty silly. Sort/isSorted on a sorted
range should be a nop. Find and friends, should do doing some
kind of binary search. Max and min should be O(1). Some of the
functions that return a sub range or a mutated range could
probably be returning sorted ranges as well if its input is a
sorted range, remove, strip and split at least could.
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