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Bypassing encapsulation with pointers
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#include <iostream> | |
using namespace std; | |
class Contact | |
{ | |
private: | |
int mobile_number; // private variable | |
int home_number; // private variable | |
public: | |
Contact() // constructor | |
{ | |
mobile_number = 12345678; | |
home_number = 87654321; | |
} | |
void print_numbers() | |
{ | |
cout << "Mobile number: " << mobile_number; | |
cout << ", home number: " << home_number << endl; | |
} | |
}; | |
int main() | |
{ | |
Contact Tony; | |
int * mobile_number_is_here = (int *)&Tony; | |
cout << "Mobile number: " << (*mobile_number_is_here) << endl; | |
int * home_number_is_here = mobile_number_is_here + 1; | |
*home_number_is_here = 1; | |
cout << "Modified home number: " << (*home_number_is_here) << endl; | |
Tony.print_numbers(); | |
return 0; | |
} |
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