On 8/23/2014 3:46 PM, Scott Wilson wrote:
> 1. What is the current support for calling C/C++ free functions from D? What
> level of mangling is supported? What data types can be passed without
> translation from D to C/C++?

D's native types can be used to call C/C++ free functions directly without translation. Structs are the same.

> 2. How about template functions? Is it possible to call a C++ template function
> from D?

Yes.

> 3. How can a C++ object be used from D? Can C++ methods be called from D? The
> question applies to value types - no virtuals - and polymorphic types with
> virtuals, inheritance etc. And of course simple C structs.

Simple structs can be passed back and forth without modification. Classes with single inheritance can be passed by reference back and forth.


> 4. How about template objects? One issue is that many C++ interfaces pass
> std::string and std::map<..., ...> as parameters. How feasible is to manipulate
> such objects in D?

Check out the following update to the compiler https://github.com/D-Programming-Language/dmd/pull/3895 which makes it possible for D to interface with C++ std functions.


> 5. How about the other way? Can a C/C++ function call a D function?

Yes.