example3_const_cast_with_member_functions.cpp

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#include <iostream>

class DataManager {
private:
    int data;

public:
    DataManager(int d) : data(d) {}

    int getData() const {
        return data;
    }

    void setData(int newData) {
        data = newData;
    }

    void incrementData() const {
        // const_cast to call non-const member function from const context
        const_cast<DataManager*>(this)->setData(data + 1);
    }
};

int main() {
    DataManager dm(10);
    std::cout << "Initial data: " << dm.getData() << std::endl;
    dm.incrementData();
    std::cout << "After increment: " << dm.getData() << std::endl;
    return 0;
}