How to get element type of a slice?

Jesse Phillips Jesse.K.Phillips+D at gmail.com
Thu Aug 19 03:32:47 UTC 2021


On Thursday, 19 August 2021 at 03:29:03 UTC, Jesse Phillips wrote:
> On Tuesday, 17 August 2021 at 12:33:03 UTC, Ferhat Kurtulmuş 
> wrote:
>> On Tuesday, 17 August 2021 at 12:26:36 UTC, jfondren wrote:
>>> On Tuesday, 17 August 2021 at 12:21:31 UTC, Ferhat Kurtulmuş 
>>> wrote:
>>>> [...]
>>>
>>> This one's not in std.traits:
>>>
>>> ```d
>>> import std.range : ElementType;
>>>
>>> struct Point { int x, y; }
>>>
>>> unittest {
>>>     Point[] points;
>>>     assert(is(ElementType!(typeof(points)) == Point));
>>> }
>>> ```
>>
>> Hey, thank you again but, I don't want an instance of Point[] 
>> I need:
>>
>> alias T = Point[];
>>
>> alias ElementOfPointSlice = .... // element type of T
>

Sorry last post was not complete. Not tested.


     ```
      alias T = Point[];
     alias ElementOfPointSlice = ElementType!(T);

      unittest {
          assert(is(ElementOfPointSlice == Point));
       }
     ```




More information about the Digitalmars-d-learn mailing list