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Asked: 2026-05-18T20:21:17+00:00

I’m using shared library with explicit linking (loading shared lib with dlopen ) in

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I’m using shared library with explicit linking (loading shared lib with dlopen) in order to implement plugin pattern in C++.

Is it possible to define a function pointer to a constructor of a class defined in the shared library or I would have to define factory method, within shared lib, that would instantiate (and initialize) object of a class from shared lib? Of course in my main app, then, I would define a function pointer to a factory method, and that method would return an instance of the class I need.

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1 Answer

  1. Editorial Team

    The answer to the question is no, you can not define a member or function pointer to the constructor.

    For dlopen, you need to provide a function with c linkage and load it dynamically, which you can use to create the objects, and you also need another function to delete objects.

    More about it here

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