从shared_ptr中分离指针？

#include<iostream>
#include<memory>

int main() {
    std::shared_ptr<int> shared_ptr = std::make_shared<int>(42);
    int* raw_ptr = shared_ptr.get();

    std::cout << "shared_ptr: "<< shared_ptr.use_count()<< std::endl;
    std::cout << "raw_ptr: " << *raw_ptr<< std::endl;

    return 0;
}