Returning range of inout objects from inout method

[Steven Schveighoffer]

On 7/25/20 4:07 PM, Steven Schveighoffer wrote:
> On 7/25/20 3:16 PM, FreeSlave wrote:
>> On Saturday, 25 July 2020 at 14:19:15 UTC, Steven Schveighoffer wrote:
>>>
>>> The only way to do this without code duplication (but with generated 
>>> code duplication) is to template the byAction function on the type of 
>>> `this`:
>>>
>>> auto byAction(this This)() { /* same implementation */ }
>>>
>>> Note that this ONLY works if your base range type is an array. If you 
>>> have a custom range type, you need to parameterize that based on the 
>>> constness of `This`.
>>>
>>
>> Thanks. I thought this template is useful only in inheritance.
>> Is constness of member function inferred automatically in this case?
> 
> In this case, yes. I don't know actually if this is documented.

It should be now.

https://github.com/dlang/dlang.org/pull/2835

-Steve