Method ~Pimpl

CvPlot/inc/CvPlot/Internal/Pimpl.h:22–24

        : m(new T(std::forward<Args>(args)...)) {
    }
    ~Pimpl() {
        static_assert(0 < sizeof(T), "Pimpl error: Missing destructor in the pimpled class?");
    }
    T* operator->() {
        return m.get();
    }