#include <stdio.h>
#include <iostream>
#include <tr1/memory>
#include <thread>
#include <chrono>
#include <mutex>
class A{
public:
A(){
std::cout<<"Construct A!"<<std::endl;
};
~A(){
std::cout<<"Destruct A!"<<std::endl;
};
};
class B: public A {
public:
B(){
std::cout<<"Construct B!"<<std::endl;
};
~B(){
std::cout<<"Destruct B!"<<std::endl;
};
};
int main(){
B *b1 = new B();
std::cout<<"-----------divid line--------"<<std::endl;
std::tr1::shared_ptr<B> b2(new B());
std::cout<<"-----------divid line--------"<<std::endl;
// A a;
std::cout<<"-----------divid line--------"<<std::endl;
// std::tr1::shared_ptr<A> spa(new A());
std::cout<<"-----------divid line--------"<<std::endl;
return 0;
}
