Method Pimpl

CvPlot/inc/CvPlot/Internal/Pimpl.h:15–17

class Pimpl {
public:
    Pimpl(Pimpl<T>&& o)
        : m(std::move(o.m)) {
    }
    template<typename ...Args>
    Pimpl(Args&& ...args)
        : m(new T(std::forward<Args>(args)...)) {