Copying array with const correctness

[Steven Schveighoffer]

On Wednesday, 8 October 2025 at 07:46:32 UTC, Vindex9 wrote:
> On Wednesday, 8 October 2025 at 02:58:15 UTC, Steven 
> Schveighoffer wrote:
>> My attempt:
>>
>> ```d
>> import std.traits;
>>
>> inout(T)[] copyArray(T)(inout(T)[] arr) {
>>     alias M = Unqual!T;
>> ```
>
>
> Unfortunately, `Unqual` in your code doesn't do anything - the 
> type `M` remains `T`. Apparently, some strange things are 
> happening inside the template when it comes to constness.

You are right, I didn't think about the fact that `T` is going to 
already be unmodified (since `inout` takes over the modifier).

So really, this isn't needed, you can just use T, and rely on the 
explicit conversion at the end.

> Thank you, Steve.

I'm glad you were able to work it out.

-Steve