Given a C++ class that looks like this:

class Foo {
   static void Initialize(const SomeObject&);

   virtual void func1();
}

The documentation at [1] doesn't say anything about how to handle static member functions like Initialize, nor do I see anything about references. I assume I can declare any reference function parameters using D's ref, but I have no idea how to declare static methods. My questions:

1) Am I right about ref?

2) Do I need to create a wrapper function in C or C++ for static member functions?

On Wednesday, 9 September 2015 at 09:55:21 UTC, Mike Parker wrote:
>
> The documentation at [1] doesn't say anything about how to

[1] http://dlang.org/cpp_interface.html

On 2015-09-09 11:55, Mike Parker wrote:
> Given a C++ class that looks like this:
>
> class Foo {
>     static void Initialize(const SomeObject&);
>
>     virtual void func1();
> }
>
> The documentation at [1] doesn't say anything about how to handle static
> member functions like Initialize, nor do I see anything about
> references. I assume I can declare any reference function parameters
> using D's ref, but I have no idea how to declare static methods. My
> questions:
>
> 1) Am I right about ref?

I would assume so. It's just a pointer under the hood.

> 2) Do I need to create a wrapper function in C or C++ for static member
> functions?

The documentation for the C++ support is very outdated. I recommend to give it a try and see what happens :). Alternatively look in the DMD test suite and see what you can find, or the DMD source code now when it's in D.

-- 
/Jacob Carlborg

Static functions are declared with `static` storage class. This looks so basic, it's even not documented in language spec, lol.

In D classes are reference types by default.

On Wednesday, 9 September 2015 at 11:49:33 UTC, Kagamin wrote:
> Static functions are declared with `static` storage class. This looks so basic, it's even not documented in language spec, lol.
>

Yes, I get that. But how does that work when you're linking to a C++ library and the translation of the C++ class to D is an interface? Or is it possible now to link D classes directly with C classes?

> In D classes are reference types by default.

Yes, of course. I just want to verify that the D ref and C++ ref are equivalent.

I realize I can do it myself when I sit down this weekend and start exploring it, but I'm hoping someone can point me to a blog post, some sample code, or just give me some insights to save time.

On Wednesday, 9 September 2015 at 13:17:53 UTC, Mike Parker wrote:
> Yes, I get that. But how does that work when you're linking to a C++ library and the translation of the C++ class to D is an interface? Or is it possible now to link D classes directly with C classes?

Classes and templates except for special members (which are usually relied upon heavily in C++ code, but maybe your C++ code is unusual).

> I realize I can do it myself when I sit down this weekend and start exploring it, but I'm hoping someone can point me to a blog post, some sample code, or just give me some insights to save time.

You can see bugzilla issues marked with C++ keyword. The docs were deemed unworthy because of skills required to write C++ bindings. Maybe because it's still not practical as it doesn't support critical C++ idioms like RAII.