C++ Overridden method not getting called

Question

Shape.h

namespace Graphics {
    class Shape {
    public:
        virtual void Render(Point point) {};
    };
}

Rect.h

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Answer 1

This problem is called slicing - you lose the derived functionality when copying to a base. To avoid this use pointers to the base class, i.e.

std::vector s;
s.push_back(&some_rect);