example3_lvalue_references.cpp

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#include <iostream>

void modify(int& ref) {
    ref += 10;  // Modify the lvalue reference
}

int main() {
    int value = 30;
    modify(value);  // Pass 'value' as an lvalue reference

    std::cout << "Modified value: " << value << std::endl;

    return 0;
}