why $ is need to access array [negative index]?

[Steven Schveighoffer]

On 9/18/20 5:17 PM, mw wrote:
> On Friday, 18 September 2020 at 21:14:19 UTC, mw wrote:
>> On Friday, 18 September 2020 at 21:11:58 UTC, Steven Schveighoffer wrote:
>>> Well, if you don't care about verbosity.
>>>
>>> signs[(sign + $) % $] = ...;
>>
>> I want compiler writes this verbosity, instead of the user :-)
> 
> And ... this [(sign + $) % $] is not right, it's defensive programming: 
> and will hide real bugs, e.g.
> 
> when array index > array.length.

It depends on how you want to define indexing.

Let me write that a different way:

"And ... this processing of negative indexes is not right, it's 
defensive programming: and will hide real bugs, e.g.

when array index < 0"

D array indexing is set in stone. Like really hard, billion-year-old stone.

Again, if you want a different indexing scheme, write a type. D makes it 
really easy!

-Steve