differetiate between shallow copy and copy constructor in c++ 2011

[saneha]

differetiate between shallow copy and copy constructor with examples?

[Vuhelper]

Code:

Default copy constructor uses shallow copy Overloaded copy constructor uses deep copy Shallow copy example: Student::Student (const Student & obj) { //copy constructor with sallow copy rollNo=obj.rollNo; name=obj.name; GPA=obj.GPA; } int main ( ) { Student studentA; Student studentB=studentA; /* Shallow copy: compiler will use copy constructor to assign studentA values to newly created object studentB */ } Deep copy example: Student::Student(const Student & obj) { //copy constructor with deep copy name=new char[strlen(obj.name)+1]; Strcpy(name, obj.name); } int main() { Student studentA; Student studentB=studentA;/* Deep copy: compiler will use copy constructor to assign studentA values to newly created object studentB */ }