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#include <iostream>
#include <string>
using namespace std;
struct Person {
string name;
double age;
};
void by_address_of_const(const Person *p) {
Person x;
p = &x;
cout << "modified copy inside function: " << p << endl;
}
int main() {
Person person;
Person *pointer = &person;
cout << "before function call: " << pointer << endl;
by_address_of_const(pointer);
cout << "after function call: " << pointer << endl;
return 0;
}
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