Interfacing with C++ std::shared_ptr and std::unique_ptr

[Andre Pany via Digitalmars-d-learn]

Hi,

I would like to interface with the library 
https://github.com/NTNU-IHB/FMI4cpp
and have following class definitions in the header file:
``` c++
namespace fmi4cpp {

    template<class ModelDescription>
    class fmu_base {

    public:

        const std::string guid() const {
            return get_model_description()->guid;
        }

        const std::string model_name() const {
            return get_model_description()->model_name;
        }

        virtual std::shared_ptr<const ModelDescription> 
get_model_description() const = 0;

    };

    template<class model_description, class cs_fmu, class me_fmu>
    class fmu_provider : public virtual 
fmu_base<model_description> {

    public:

        virtual bool supports_cs() const = 0;

        virtual bool supports_me() const = 0;

        virtual std::unique_ptr <cs_fmu> as_cs_fmu() const = 0;

        virtual std::unique_ptr <me_fmu> as_me_fmu() const = 0;

    };
```

While unique_ptr is already available in drunime library 
core.stdcpp.memory,
shared_ptr is missing. Does someone already have translated 
shared_ptr?

Also, the C++ classes make use of templates. Is it still possible 
to call these
classes from D?

Kind regards
Andre