Polymorphic print(ostream&)

An abstract base class Shape is given in the starter with the pure virtual method virtual void print(ostream& out) const = 0;. Derive two classes from it:
1. Circle(int r) — print writes Circle r= followed by the radius and a newline, e.g. Circle r=2
2. Rect(int w, int h) — print writes Rect , the width, the letter x, the height and a newline, e.g. Rect 3x4

Both overrides must write to the out parameter, not cout.

Do NOT write a main function.

Expected Output:

Circle r=2↵
Rect 3x4↵
Rect 1x1↵
Circle r=10↵

= newline. The output ends with a newline — print one after the last line.

Hints4 available

Topics:

Streamsostream

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