Created
April 17, 2020 10:02
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| #include<bits/stdc++.h> | |
| using namespace std; | |
| class student | |
| { | |
| private: | |
| string name; | |
| int rollNumeber; | |
| public: | |
| student(); // custom default Constructor | |
| student(const student & obj); // custom copy constructor | |
| student & operator=(const student & obj); // custom copy assignment operator | |
| }; | |
| student::student() | |
| { | |
| name = "No Name"; | |
| rollNumeber = 0; | |
| } | |
| student::student(const student & obj) | |
| { | |
| cout<<"custom copy constructor is called\n"; | |
| name = obj.name; | |
| rollNumeber = obj.rollNumeber; | |
| } | |
| student & student::operator=(const student & obj) | |
| { | |
| cout<<"custom assignment operator is called\n"; | |
| name = obj.name; | |
| rollNumeber = obj.rollNumeber; | |
| return *this; | |
| } | |
| void test1(student s) | |
| { | |
| // testing function | |
| } | |
| student test2(student s) | |
| { | |
| return s; | |
| } | |
| int main() | |
| { | |
| student s1,s2; | |
| student s3 = s2; // copy constructor is called | |
| test1(s3); // copy constructor is called | |
| s3 = test2(s3); // copy constructor is called and then assignment operator for "=" | |
| s2 = s3; // assignment operator is called | |
| return 0; | |
| } |
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