Programming

#include <iostream>
#include <cstring>
using namespace std;

class CString {
    char* m_data;

public:
    CString() : m_data(NULL) { }

    CString(char* t) {
        m_data = new char[strlen(t) + 1];
        strcpy(m_data,t);
    }

    operator char*() {
        cout << "function called " << endl;
        return m_data;
    }

    ~CString() {
        delete m_data;
    }
};

int main() {
    CString str1 = "Hello";
    CString str2 = str1;
    cout << str1 << endl;
}

class CString
{
...

CString(const CString& copy)
{
        m_data=new char[strlen(copy.m_data) + 1];
        strcpy(m_data, copy.m_data);
}

...

};

    CString(CString& s) {
        cout << "copy constructor called" << endl;
    }

    CString(const CString& s) {

class A {
public:
    A (A&) {}
};