Re: Derived Lua objects in C++ containers (with smart pointers)

On Jul 8, 2013, at 2:04 PM, "Christian" <[email protected]> wrote:

>> The complicating factor (maybe) is that I'd like to use smart pointers in the containing
>> STL vector, and I don't see how to use both luabind::wrap_base and a smart pointer at the
>> same time, in the class_ binding.
> 
> I think you identified the problem correctly. Have you read
> http://www.rasterbar.com/products/luabind/docs.html#smart-pointers ?
> You need to specify ofPtr as an template argument when registering your class and make sure
> that a get_pointer() function is available in the same namespace as ofPtr (global is only
> sufficient if ofPtr is itself global).

Yes, I had indeed read it -- but where I went wrong was assuming ofPtr supported get_pointer().  It doesn't.  It's not based on boost::shared_ptr but rather std::shared_ptr, which doesn't include a get_pointer() method.  Changing my code to use boost::shared_ptr, it all works fine.  Otherwise, I could add a get_pointer() function, as in your code.

Thanks!
Glen.

> 
>> (in the below code, assume [...] ofPtr is just shared_ptr)
> 
> boost::shared_ptr? Then just specify ofPtr as template argument, as said above, and you
> should be done.
> If not, you additionally need to supply an appropriate get_pointer() function. For
> std::shared_ptr, you can use a header I made for this purpose (just include it):
> http://github.com/Oberon00/luabind/blob/master/luabind/std_shared_ptr_converter.hpp
> 
> I hope I could help,
> Christian


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