const objects

[Dom DiSc]

On Sunday, 17 August 2025 at 15:09:30 UTC, H. S. Teoh wrote:

> If you want to pass an immutable pointer to S2.this, you need 
> to use `inout`:
>
> ```d
> struct S2
> {
>     int* my_x;
>     this(inout(int)* x) inout { my_x = x; }
> }
>
> void main(string[] args) {
> 	immutable int i = 1;
> 	auto s2 = immutable(S2)(&i); // OK
> }
> ```

Ah! I thought of inout, but it is not allowed on member 
variables. I didn't know that I can mark the constructor inout.

Many thanks, this works!