小编sop*_*hia的帖子

class foo
{
public:
    foo(void)
    {
        this->f = std::bind(&foo::doSomething, this);
    }

private:
    virtual void doSomething(void) { }

private:
    std::function<void(void)> f;
}

class bar : public foo
{
public:
    bar(void) { /* I have no idea what I have to */ }

private:
    virtual void doSomething(void) override { }
}

我想将覆盖的'doSomething'函数分配给'foo :: f'.但我不知道如何分配重写'doSomething'功能.或者我只是编写一些代码来为每个类分配'doSomething'函数？

class foo
{
public:
    foo(void)
    {
        this->f = std::bind(&foo::doSomething, this);
    }

private:
    virtual void doSomething(void) { }

private:
    std::function<void(void)> f;
}

class bar : public foo
{
public: …