Writing a C++ Wrapper around Objective-C

Question

I want to call and work with Objective-C classes from within a C++ project on OS X. It is time to start moving towards all Objective-C, but we need to do this over some time

Answer 1

First rename your files from *.m to *.mm so you get Objective-C++

I have not tired this, so it is speculation (I will tonight):

As all Objective-C++ objects (that are reference counted) are controlled via pointers so you can write a special destructor for shared pointer.

template
struct ObjCDestruct
{
    void operator()(T* obj)
    {
        [obj release];
    }
};

Now you can stick your Objective-C obects in a boost::shared_ptr

// FuncFile.M
//
int func()
{
    boost::shared_ptr >  data([[MyX alloc] init]);

    [data.get() doAction1:@"HI"];
}