example_c11.cpp

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#include <iostream>

void foo(int value) {
    std::cout << "Integer overload: " << value << std::endl;
}

void foo(void* ptr) {
    std::cout << "Pointer overload: " << ptr << std::endl;
}

int main() {
    foo(nullptr);  // Clearly calls foo(void*)
    return 0;
}