C++ pattern matching is coming

[Walter Bright]

On 10/24/2022 1:58 PM, Dukc wrote:
> struct MMptr (Pointee)
> { @system Pointee* data; // Assuming @system variables DIP is implemented
>    // implementation...
> }
> 
> // The only way to create MMptrs except for nulls
> MMptr!T mallocate(T)()
> { import core.lifetime;
>    import core.stdc : malloc;
>    auto mem = cast(T*)malloc(sizeof(T));
>    return MMptr(mem.emplace);
> }
> 
> // The only way to get rid of owned MMptrs
> void free(T)(MMptr!T expired)
> { import core.stdc : free;
>    destroy!false(*expired.data);

.data wouldn't be accessible from @safe code.

>    free(expired.data);
> }