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@ -6789,7 +6789,7 @@ First we devise a hierarchy of interface classes:
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class Circle : public Shape { // pure interface
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public:
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int radius() = 0;
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virtual int radius() = 0;
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// ...
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};
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@ -6799,13 +6799,13 @@ To make this interface useful, we must provide its implementation classes (here,
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public:
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// constructors, destructor
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// ...
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virtual Point center() const { /* ... */ }
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virtual Color color() const { /* ... */ }
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Point center() const override { /* ... */ }
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Color color() const override { /* ... */ }
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virtual void rotate(int) { /* ... */ }
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virtual void move(Point p) { /* ... */ }
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void rotate(int) override { /* ... */ }
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void move(Point p) override { /* ... */ }
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virtual void redraw() { /* ... */ }
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void redraw() override { /* ... */ }
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// ...
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};
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@ -6817,7 +6817,7 @@ but bear with us because this is just a simple example of a technique aimed at m
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public:
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// constructors, destructor
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int radius() { /* ... */ }
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int radius() override { /* ... */ }
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// ...
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};
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