Merge pull request #846 from pushpakumari5117/issue-844

Added the code for Deep Copy Constructor in C++

Author: smv1999

OOPs/Constructor/Deep_Copy_Constructor_cpp.cpp

@@ -0,0 +1,58 @@
+// C++ program to demonstrate Deep Copy Constructor
+
+// Deep Copy Constructor - Deep copy Constructor allocates separate memory for copied information. So the source and copy 
+// are different. Any changes made in one memory location will not affect the other location. 
+
+#include<bits/stdc++.h>
+using namespace std;
+
+// class with a Deep Copy Constructor
+class Person{
+    
+    private:
+        char *name;
+        
+    public:
+        // Constructor
+        Person(const char *iname){ 
+            name=new char[20];
+            strcpy(name,iname);
+        }
+        // Deep Copy Constructor
+        Person(const Person &p1){
+            name=new char[20];
+            strcpy(name,p1.name);
+        }
+        void concatenate(const char *str){
+            strcat(name,str);
+        }
+        void display(){
+            cout<<"Name : "<<name<<endl;
+        }
+};
+
+int main(){
+    // Creating an object of class Person (initializing it using Parameterized Constructor)
+    cout<<"Object 1 initialization - "<<endl;
+    Person p1("abc");
+    p1.display();
+    cout<<endl;
+    
+    // Creating an object of class Person (initializing it using Deep Copy Constructor)
+    cout<<"Object 2 initialization using Deep Copy Constructor - "<<endl;
+    Person p2=p1;
+    p2.display();
+    cout<<endl;
+    
+    // Making some changes to original object (Object 1)
+    p1.concatenate("xyz");
+    
+    cout<<"Object 1 after making changes to Object 1 - "<<endl;
+    p1.display();
+    cout<<endl;
+    
+    cout<<"Object 2 after making changes to Object 1 - "<<endl;
+    p2.display();
+    
+    return 0;
+}