#include #include class Counter { private: int m_value{}; public: Counter(int value = 0) : m_value{value} {} int getValue() const { return m_value; } // TODO: Implement unary minus operator (negation) // - Returns a new Counter with the negated value // - Signature: Counter operator-() const // Example output: // -5 // TODO: Implement prefix increment operator // - Increments m_value and returns reference to *this // - Signature: Counter& operator++() // Example output: // 6 // TODO: Implement prefix decrement operator // - Decrements m_value and returns reference to *this // - Signature: Counter& operator--() // Example output: // 5 // TODO: Implement compound addition assignment operator // - Adds amount to m_value and returns reference to *this // - Signature: Counter& operator+=(int amount) // Example output: // 15 // TODO: Implement compound subtraction assignment operator // - Subtracts amount from m_value and returns reference to *this // - Signature: Counter& operator-=(int amount) // Example output: // 12 // TODO: Implement compound multiplication assignment operator // - Multiplies m_value by amount and returns reference to *this // - Signature: Counter& operator*=(int amount) // Example output: // 24 }; class SimpleArray { private: std::array m_data{}; public: SimpleArray(int a, int b, int c) : m_data{a, b, c} {} // TODO: Implement const subscript operator for read-only access // - Signature: int operator[](int index) const // - Returns the element at the given index // Example output: // 10 // TODO: Implement non-const subscript operator for read-write access // - Signature: int& operator[](int index) // - Returns a reference to allow modification // Example output: // (allows arr[0] = 100) }; int main() { Counter counter{5}; std::cout << counter.getValue() << '\n'; Counter negated{-counter}; std::cout << negated.getValue() << '\n'; ++counter; std::cout << counter.getValue() << '\n'; --counter; std::cout << counter.getValue() << '\n'; counter += 10; std::cout << counter.getValue() << '\n'; counter -= 3; std::cout << counter.getValue() << '\n'; counter *= 2; std::cout << counter.getValue() << '\n'; SimpleArray arr{10, 20, 30}; std::cout << arr[0] << '\n'; std::cout << arr[1] << '\n'; std::cout << arr[2] << '\n'; return 0; }

Operators as Member Functions

Success Criteria

How did you find this exercise?

Sign in to track your progress

This platform is built by its community