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Base Class Pointer with Derived Object
Base class has some virtual method and derived class has a method with the same name. If we initialize the base class pointer with derived object, calling of that virtual method will result in which method being called?
Vincent Monsen
- Jan 31st, 2011
The derived class method will be called because the method is declared virtual in the base class. Dynamic binding enables this.
ajrobb
- Sep 22nd, 2010
This is polymorphism, an object with at least one virtual method. When a polymorphic object is constructed, it includes a hidden vtable containing virtual function pointers and other polymorphic infor...
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Execute Destructor
When is a destructor executed?
newlife
- Jul 4th, 2009
It is called automatically whenever life of object ended. we need not to call it separtely.
yudhisthira_attry
- Dec 4th, 2008
When object goes out of scope or if you delete the object which is created by new operator on heap.
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How can I instantiate only three instances of an application ?If I open 4th instance, I have to close 1st instance like wise if I open 5th one I have to close 2nd one automatically ?
newlife
- Sep 24th, 2009
This can be done using one static variable which will keep account of object and a list which has object reference. In constructor check if static variable is 4 then remove one object from list and ad...
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Is it possible to implement Polymorphism (either compile time / runtime) in “C” ? If yes how?
Ashwan
- Jul 26th, 2007
Dont have as such idea whether we can explicitly implement the Polymorphism or not.....but internally it gets done incase of "C".Consider the example of printf/scanf. Both are library functions and?...
