Try It Yourself - SyntaxStudy Editor

HTML / CSS / JS

#include <iostream>
#include <cstring>   // std::strlen, std::strcpy

class MyString {
public:
    // Parameterised constructor
    explicit MyString(const char* s = "") {
        len_  = std::strlen(s);
        data_ = new char[len_ + 1];
        std::strcpy(data_, s);
        std::cout << "Constructed: " << data_ << "
";
    }

// Copy constructor (deep copy)
    MyString(const MyString& other) {
        len_  = other.len_;
        data_ = new char[len_ + 1];
        std::strcpy(data_, other.data_);
        std::cout << "Copy-constructed: " << data_ << "
";
    }

// Copy-assignment operator
    MyString& operator=(const MyString& other) {
        if (this == &other) return *this;   // self-assignment guard
        delete[] data_;
        len_  = other.len_;
        data_ = new char[len_ + 1];
        std::strcpy(data_, other.data_);
        std::cout << "Assigned: " << data_ << "
";
        return *this;
    }

// Destructor — frees heap memory
    ~MyString() {
        std::cout << "Destroyed: " << data_ << "
";
        delete[] data_;
    }

const char* c_str() const { return data_; }

private:
    char*       data_;
    std::size_t len_;
};

int main() {
    MyString a("hello");
    MyString b = a;      // copy constructor
    MyString c("world");
    c = a;               // copy-assignment
    return 0;
}