returning std::string/std::list from dll

Question

Short question.

I just got a dll I\'m supposed to interface with. Dll uses crt from msvcr90D.dll (notice D), and returns std::strings, std::lists, and boost::shared_

Answer 1

For std::string you can return using c_str. In the case of more complicated stuff, an option can be something like

class ContainerValueProcessor
    {
    public:
         virtual void operator()(const trivial_type& value)=0;
    };

Then (assuming you want to use std::list), you can use an interface

class List
    {
    public:
        virtual void processItems(ContainerValueProcessor&& proc)=0;
    };

Notice that List can now be implemented by any container.