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#include <memory>
using namespace std;
unique_ptr<int> create_unique_pointer() {
return unique_ptr<int>(new int(4));
}
int main() {
unique_ptr<int> pi1(new int(3));
// error: two unique_ptr pointers pointing to the same memory
unique_ptr<int> pi2 = pi1;
// ok: new unique_ptr takes over as old unique_ptr is destroyed
unique_ptr<int> pi3 = create_unique_pointer();
return 0;
}
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