PPLab/Exp6.cpp at main · PranjaliAwchar/PPLab · GitHub

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//Inheritance
#include <iostream>

class A {
private:
  int x;

public:
  A(int x) : x(x) {}

  void swap(A& other) {
    std::swap(x, other.x);
  }

  void print() {
    std::cout << "x: " << x << std::endl;
  }
};

class B : public A {
private:
  int y;

public:
  B(int x, int y) : A(x), y(y) {}

  void swap(B& other) {
    A::swap(other); // Swaps the `A` portion of `this`.
    std::swap(y, other.y); // Swaps the `B` portion of `this`.
  }

  void print() {
    A::print();
    std::cout << "y: " << y << std::endl;
  }
};

int main() {
  A a(10);
  B b(20, 30);

  std::cout << "Before swapping:" << std::endl;
  a.print();
  b.print();

  a.swap(b);

  std::cout << "After swapping:" << std::endl;
  a.print();
  b.print();

  return 0;
}


//Exception Handling

#include <iostream>
using namespace std;

class InvalidSwapException : public exception {
public:
    InvalidSwapException() {
        cout << "Invalid swap operation attempted." << endl;
    }
};

class Data {
private:
    int value;

public:
    Data(int value) : value(value) {}

    void swap(Data& other) {
        if (other.value == value) {
            throw InvalidSwapException();
        }

        int temp = value;
        value = other.value;
        other.value = temp;
    }

    void print() const {
        cout << "Value: " << value << endl;
    }
};

int main() {
    try {
        Data a(10);
        Data b(20);

        cout << "Before swapping:" << endl;
        a.print();
        b.print();

        a.swap(b);

        cout << "After swapping:" << endl;
        a.print();
        b.print();
    } catch (InvalidSwapException& e) {
        cout << e.what() << endl;
    }

    return 0;
}

//Friend Function
#include <iostream>

class Data {
private:
    int value;

public:
    Data(int value) : value(value) {}

    friend void swap(Data& a, Data& b) {
        int temp = a.value;
        a.value = b.value;
        b.value = temp;
    }

    void print() const {
        std::cout << "Value: " << value << std::endl;
    }
};

int main() {
    Data a(10);
    Data b(20);

    std::cout << "Before swapping:" << std::endl;
    a.print();
    b.print();

    swap(a, b);

    std::cout << "After swapping:" << std::endl;
    a.print();
    b.print();

    return 0;
}


//Virtual Function
#include <iostream>

class Data {
private:
    int value;

public:
    Data(int value) : value(value) {}

    virtual void swapValues(Data& other) = 0;

    void print() const {
        std::cout << "Value: " << value << std::endl;
    }
};

class DataImpl : public Data {
public:
    DataImpl(int value) : Data(value) {}

    void swapValues(Data& other) override {
        int temp = value;
        value = other.value;
        other.value = temp;
    }
};

class DataDerived : public Data {
public:
    DataDerived(int value) : Data(value) {}

    void swapValues(Data& other) override {
        // Implement custom swapping logic for derived data
        std::cout << "Swapping values in DataDerived" << std::endl;
        int temp = value;
        value = other.value;
        other.value = temp;
    }
};

int main() {
    DataImpl a(10);
    DataDerived b(20);

    std::cout << "Before swapping:" << std::endl;
    a.print();
    b.print();

    Data& d1 = a; // Use base class reference for swapping
    Data& d2 = b; // Use base class reference for swapping

    d1.swapValues(d2);

    std::cout << "After swapping:" << std::endl;
    a.print();
    b.print();

    return 0;
}