pointers explained

Author: anishsingh20

AbstractClass.cpp

@@ -23,7 +23,7 @@ class Anish : public Person {
 		void intro() {//function overridden in derived class
 
 			cout<<"Hi I am Anish"<<endl;
-			Person::intro(); //calling pure virtual function 		
+			//Person::intro(); //calling pure virtual function 		
 		}
 
 };
@@ -39,6 +39,8 @@ int main() {
 	Anish a;
 	a.intro();
 	getIntro(&a);
+	a.Person::intro(); //accessing the base class intro() function, though it is a pure virtual function
+	
 
 	return 0;
 }

Pointer2.cpp

@@ -0,0 +1,17 @@
+#include<iostream>
+
+using namespace std;
+
+int main() {
+	int a=10;
+	int *ptr=&a; //ptr refers a and stores its mem address
+	
+	cout<<a<<endl;   //value of a
+	cout<<&a<<endl;  //mem address of a-Hexadecimal
+	cout<<*&a<<endl; // value of a =10
+	cout<<*ptr<<endl;//value of a =10
+	cout<<&ptr<<endl;//address of ptr variable
+	cout<<&*ptr<<endl;//address of a as value of *ptr=10 and address of 10 is add of a
+	cout<<*&ptr<<endl;// address of a, as &ptr is address of ptr and ptr stores the mem address of a as value 
+	return 0;
+}

VirtualFuncInheritence.cpp

@@ -39,7 +39,8 @@ void getIntro(Person *p)
 }
 
 
-int main() {
+int main() 
+{
 
 	Person *p1,*p2;
 	Anish a;