As mentioned before, C++ compatibility is not 100% yet. My comments are purely what works now; which by describing to D what is in a c/c++ .o file so you can l

As mentioned before, C++ compatibility is not 100% yet. My comments are purely what works now; which by describing to D what is in a c/c++ .o file so you can link it in. In your .d file that describes the C/C++ you want to use, sometimes you will have to describe the template to D by creating D template of the C++ template. Also if your "library" is all templates, it's not a library, it's a framework that uses other libraries. There still has to be at some point tangible code that is compiled to an object file to be linked. You will have to find all of the dependancies and make sure that they are also described in a .d file. This might mean you have a bunch of work that you need to do in order use the c++ code you want to bring in into D. But then again, if it's a public/open source library, and you go down that rabbit hole and make it work, you just made D even better. please see https://dlang.org/spec/cpp_interface.html#cpp-templates https://dlang.org/spec/cpp_interface.html#cpp-templates for more details.