example4_with_references.cpp

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#include <iostream>

void increment(int& i) {
    i++;
    std::cout << "Incremented value (int&): " << i << std::endl;
}

void increment(double& d) {
    d++;
    std::cout << "Incremented value (double&): " << d << std::endl;
}

int main() {
    int a = 5;
    double b = 3.5;

    increment(a);  // Calls increment(int&)
    increment(b);  // Calls increment(double&)

    return 0;
}