On 12.06.2024 21:57, bachmeier wrote:
On Wednesday, 12 June 2024 at 18:36:26 UTC, Vinod K Chandran wrote:
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` ?
Try `foo[10] = 1.5` and `foo.ptr[10] = 1.5`. The first correctly throws
an out of bounds error. The second gives `Segmentation fault (core
dumped)`.
I think you can use data only because data contains data.ptr
