foo1: Called: foo1(ColorCube& cc1, ColorCube& cc2) I'm a blue cube. Each side has length=1.2. Serial number = 1 I'm a red cube. Each side has length=3.14. Serial number = 2 foo2: Called: foo2(ColorCube& cc, Cube& c) I'm a blue cube. Each side has length=1.2. Serial number = 1 I'm a cube. Each side has length=3.14. Serial number = 2