Arrays are sufficient for ArrayLists? Really??

[Steven Schveighoffer]

On Mon, 16 May 2011 15:52:23 -0400, Mehrdad <wfunction at hotmail.com> wrote:

> On 5/16/2011 12:53 PM, Timon Gehr wrote:
>>> In fact I even need to take that back. In order to work correctly, the
>>> function would have to iterate downwards. It _is_ indeed buggy, and I
>>> should stop emitting opinions when I'm short on time...
>>>
>>> Andrei
>>
>> Whoops, you are right:
>>
>> void removeAt(T)(ref T[] arr, size_t index)
>> {
>>     foreach (i, ref item; retro(arr[1 .. index+1]))
>>          item = arr[i - 1];
>>      arr = arr[1 .. $];
>> }
>>
>> Timon
>
> Wouldn't that stomp on the super-slice of arr, though?
>
> As was pointed out on SO, the problem is actually always there: if  
> someone passes arr[0 .. $] to a function, it will look as if the  
> original array was passed, although it wasn't. Seems like it's a lot  
> uglier than I'd thought...

arr[0..$] shouldn't be an lvalue (it is, but I think that's a bug).   
Therefore, you shouldn't be able to pass it as a ref argument (is this in  
bugzilla?).

-Steve