How to use D without the GC ?

[Vinod K Chandran]

On Wednesday, 12 June 2024 at 15:33:39 UTC, bachmeier wrote:
> A SafeRefCounted example with main marked @nogc:
>
> ```
> import std;
> import core.stdc.stdlib;
>
> struct Foo {
>   double[] data;
>   double * ptr;
>   alias data this;
>
>   @nogc this(int n) {
>     ptr = cast(double*) malloc(n*double.sizeof);
>     data = ptr[0..n];
>     printf("Data has been allocated\n");
>   }
>  }
>
> ```
>
Why not just use `ptr` ? Why did you `data` with `ptr` ?