D dropped in favour of C# for PSP emulator

[Alex Rønne Petersen]

On 11-05-2012 22:29, Jonathan M Davis wrote:
> On Friday, May 11, 2012 21:02:46 Alex Rønne Petersen wrote:
>> On 11-05-2012 20:34, Mehrdad wrote:
>>> On Friday, 11 May 2012 at 18:25:17 UTC, Jonathan M Davis wrote:
>>>>> Actually, that is a WAT even for somebody coming from C/C++.
>>>>
>>>> Really? That's pretty much exactly what I would have expected, and it
>>>> would
>>>> really suck if it returned a bool. It's like what you get with find on
>>>> std::map, only it's a pointer instead of an iterator.
>>>>
>>>> - Jonathan M Davis
>>>
>>> Again, try to see it from the perspective of a Python user, not a
>>> C++ user.
>>
>> Speaking of which, 'in' on arrays.........
>>
>> *hint hint*
>
> Except that it would break the generally expected algoritmic complexity of in,
> so it'll never happen ( O(n) for arrays, whereas the worst case that would be
> acceptable would be O(lg n) - e.g. what a binary tree could achieve).
>
> - Jonathan M Davis

'in' isn't useful in generic code. How it's defined (return type and 
parameter type) depends entirely on the type being operated on (who says 
it's an AA? Or a map-like type at all?), so it cannot be used 
generically in any sensible way.

As such, maintaining any specific algorithmic complexity for it serves 
no purpose IMHO.

-- 
- Alex