Object oriented programming with CObject.
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I''ve always been mostly a procedural programmer rather than an OOP in its strictest sense.
I use objects, but I dont frequently practice polymorphism and inheritance.
I want to make use of it and take advantage of them for my current project. But I am a bit rusty.
Can someone post a really basic/simple sample of a base class and a derived class that demonstrated polymorphism/virtual functions?
Also a brief description of how "has a", "is a", and everything else like that can be implemented is a bonus. thanks.
class Base{public: virtual void DoSomething() { printf("Base function called."); }};class Derived: public Base{public: virtual void DoSomething() { printf("Derived function called."); }};void main(){ Base *obj1 = new Base; Base *obj2 = new Derived; // Outputs "Base function called." obj1->DoSomething(); // Outputs "Derived function called." obj2->DoSomething(); delete obj1; delete obj2;} As you can see, though obj2 is a pointer to Base, the virtual function mechanism knows that it points to Derived and calls the right function.
// Website // Google // GameDev // NeHe // MSDN //
[edited by - neoztar on January 28, 2003 12:08:51 PM]
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