包装C++成员函数指针(嵌入)

#include <iostream>

class MyClass {
public:
    void memberFunction(int value) {
        std::cout << "Member function called with value: " << value << std::endl;
    }
};

class FunctionWrapper {
public:
    typedef void (MyClass::*MemberFunctionPtr)(int);

    FunctionWrapper(MyClass* obj, MemberFunctionPtr func) : obj_(obj), func_(func) {}

    void operator()(int value) {
        (obj_->*func_)(value);
    }

private:
    MyClass* obj_;
    MemberFunctionPtr func_;
};

int main() {
    MyClass obj;
    FunctionWrapper wrapper(&obj, &MyClass::memberFunction);
    wrapper(42); // 调用包装的成员函数指针

    return 0;
}