Pass reference to void*

[Stefan Koch]

On Monday, 7 January 2019 at 12:19:57 UTC, Andre Pany wrote:
> Hi,
>
> I call a C function from a dll (SO on linux). While the 
> following code works
> fine for DMD on windows, there are strange errors for LDC on 
> windows. Also the equivalent code does not work for DMD/LDC on 
> linux.
> (When calling other functions from the dll and passing the 
> model reference, this functions are failing).
>
> [...]

 From the function declaration &model seems to be the correct 
thing to use here.
Have you checked that Open is not null ?