Creating a pointer array

[data pulverizer]

On Wednesday, 19 August 2020 at 20:09:31 UTC, bachmeier wrote:
> On Wednesday, 19 August 2020 at 13:03:54 UTC, data pulverizer 
> wrote:
> Maybe I'm the only one, but I think double*[] is hideous, and 
> I'd sure hate for someone not used to D to see it. Alias is 
> your friend. I think this is much nicer:
>
> void main() {
>     alias double* DoublePtr;
>     DoublePtr[] arr;
>     auto v = [1.0, 2.0, 3.0];
>     auto w = [4.0, 5.0, 6.0];
>     arr ~= [v.ptr, w.ptr];
>     writeln(arr);
> }

I know what you mean. I'm using something like this:

```
alias P(T) = T*;
P!(double)[] arr;
```

alias is one of those awesome chameleons in D. The template 
equivalent is

```
template P(T) = T*;
```

In this case I wonder if there is any difference as far as the 
compiler is concerned?