example1_basic_usage.cpp

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#include <iostream>

int main() {
    int original = 42;
    int& ref = original;

    std::cout << "Original value: " << original << std::endl;
    std::cout << "Reference value: " << ref << std::endl;

    ref = 100;

    std::cout << "After modification:" << std::endl;
    std::cout << "Original value: " << original << std::endl;
    std::cout << "Reference value: " << ref << std::endl;

    return 0;
}