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Answer» The main difference between COMPILE-time and runtime polymorphism is provided below: | Compile-time polymorphism | Run time polymorphism |
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| In this method, we would come to know at compile time which method will be called. And the call is RESOLVED by the compiler. | In this method, we come to know at run time which method will be called. The call is not resolved by the compiler. | | It provides fast execution because it is known at the compile time. | It provides slow execution COMPARED to compile-time polymorphism because it is known at the run time. | | It is achieved by function overloading and operator overloading. | It can be achieved by virtual FUNCTIONS and pointers. | Example - int add(int a, int B){ return a+b;}int add(int a, int b, int c){ return a+b+c;}int main(){ cout<<add(2,3)<<endl; cout<<add(2,3,4)<<endl; return 0;} | Example - class A{ public: virtual void fun(){ cout<<"base "; }};class B: public A{ public: void fun(){ cout<<"derived "; }};int main(){ A *a=new B; a->fun(); return 0;} |
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