Naiv String Class

StringClass.cpp

// https://www.youtube.com/watch?v=ijIxcB9qjaU&list=PLlrATfBNZ98dudnM48yfGUldqGD0S4FFb&index=32

#include <iostream>

class String {
private:
    char* m_Buffer;
    unsigned int m_Size;
public:
    String(const char* string) {
        m_Size = strlen(string);
        m_Buffer = new char(m_Size + 1);
        memcpy(m_Buffer, string, m_Size);
        // null termination operator
        m_Buffer[m_Size] = 0;
    }
    // Like unique pointers String(const String& other) = delete;
    String(const String& other)
    : m_Size(other.m_Size) {
        m_Buffer = new char(m_Size + 1);
        memcpy(m_Buffer, other.m_Buffer, m_Size);
        // m_Buffer[m_Size] = 0; The original already have the null termination
    }
    ~String() {
        delete [] m_Buffer;
    }
    char& operator[](unsigned int index) {
        return m_Buffer[index];
    }
    friend std::ostream& operator <<(std::ostream& stream, const String& string);
};

std::ostream& operator <<(std::ostream& stream, const String& string) {
    stream << string.m_Buffer;
    return stream;
}

int main() {
    String string = "cherno";
    String string2 = string;
    string2[2] = 'a';

    std::cout << string << std::endl;
    std::cout << string2 << std::endl;
    std::cin.get();
}