lambda

Code

在此输入正文

#include "stdio.h"
#include "functional"
#include <iostream>
#include <memory>
class A {
public:
    A(std::function<void(int)>& func) : func_(func){
    }
    ~A(){}
    // tick process
    virtual void process() {
        func_(6);
    }
    // interrupt
    // virtual void interrupt();
private:
    std::function<void(int)>  func_;
};
template <typename Func>
class B {
public:
    B(Func& func) : func_(func){
        //func_ = func;
        //func_(func);
    }
    ~B() {}
    virtual void process() {
        func_(6);
    }
private:
    Func func_;
};
int main() {
    auto a = std::make_shared<A>((std::function<void(int)>) [](int i ) { std::cout << i << std::endl; });
    a->process();
    auto funcb = [](int i) { std::cout << i << std::endl; };
    auto b = std::make_shared<B <decltype(funcb)>>(funcb);
    b->process();
    char c = getchar();
    return 0;
}