由于智能指针而导致崩溃

Question

可以修改以下类的设计，以避免崩溃。我不想在SomeClass中使用原始指针，因此我使用了shared_ptr / weak_ptr，std :: enable_shared_from_this和shared_from_this（）构造，但是它导致崩溃。任何人都可以提出更好的解决方案

#include <iostream>

class SomeClass;
class Base : public std::enable_shared_from_this<Base>
{
public:
    int a = 0;
    Base()
    {
        std::cout << "In Base\n";
    }

    ~Base()
    {
        std::cout << "In ~Base\n";
    }
};

class Derived : public Base
{
public:
    int b = 0;
    std::shared_ptr<SomeClass> sc;
    Derived()
    {
        std::cout << "In Derived\n";
    }

    ~Derived()
    {
        sc = nullptr;
        std::cout << "In ~Derived\n";
    }
    void Test()
    {
        std::shared_ptr<Derived> b1(this);
        sc = std::make_shared<SomeClass>(std::static_pointer_cast<Derived>(b1->shared_from_this()));
    }
};

class SomeClass
{
public:
    std::weak_ptr<Derived> derived_;

    SomeClass(std::shared_ptr<Derived> derived)
    {
        derived_ = derived;
        std::cout << "In SomeClass\n";
    }

    ~SomeClass()
    {
        std::cout << "In ~SomeClass\n";
    }
};

void Function()
{
    Derived d;
    d.Test();
}