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c++/Others/Accessing Private Data Members in C++. This is a flaw in the language.cpp

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+Accessing Private Data Members in C++. This is a flaw in the language
+
+#include <iostream.h>
+#include <string.h>
+#include <conio.h>
+
+class bestcoder
+{
+  private:
+
+     char name[40];
+     char grade;
+     int age;
+
+  public:
+
+ bestcoder(char* nam="Some Dude",char gr='A',int saal=25)
+      {
+         strcpy(name,nam);
+         grade=gr;
+         age=saal;
+      }
+
+ friend ostream& operator <<(ostream& s,bestcoder b);
+};
+
+ostream& operator <<(ostream& s,bestcoder b)
+{
+  s<<"Best Coder  :"<<b.name<<endl
+  		 <<"His Rating  :"<<b.grade<<endl
+   <<"Current Age :"<<b.age<<"
+
+";
+   return s;
+}
+
+struct hackit
+{
+  char name[40];
+  char grade;
+  char age;
+};
+
+void main()
+{
+ bestcoder bc;
+ cout<<bc;
+ void* ptr=&bc;
+ struct hackit* bettercoder=(hackit*)ptr;
+ bettercoder->grade='F';
+ bettercoder->age=56;
+ cout<<bc;
+ strcpy(bettercoder->name,"xxx");
+ bettercoder->age=14;
+ bettercoder->grade='A';
+ cout<<bc;
+ getch();
+}