190. Self-Assignment Check

#include <iostream>
#include <string>

class Buffer {
private:
    int id;

public:
    Buffer(int i) : id(i) {}

    // TODO: Implement the assignment operator
    Buffer& operator=(const Buffer& other) {
        // TODO: Check for self-assignment using 'this' pointer
        // Compare the address of the current object (this) with the address of 'other'
        if (this == &other){
            printf("Self-Assignment Detected\n");
            return *this;
        } 
        
        // TODO: Perform assignment if not self
        id=other.id;
        printf("Assignment Complete\n");
        return *this;
    }

    void log() {
        std::cout << "Buffer ID: " << id << std::endl;
    }
};

int main() {
    int N;
    if (!(std::cin >> N)) return 0;

    for (int i = 0; i < N; ++i) {
        std::string cmd;
        std::cin >> cmd;

        if (cmd == "ASSIGN") {
            int i1, i2;
            std::cin >> i1 >> i2;
            Buffer b1(i1);
            Buffer b2(i2);
            b1 = b2;
            b1.log();
        } else if (cmd == "SELF") {
            int i1;
            std::cin >> i1;
            Buffer b1(i1);
            b1 = b1; // Self-assignment
            b1.log();
        }
    }
    return 0;
}