标签：effective c++ 智能指针 boost shared_ptr
顾名思义，boost::shared_ptr是可以共享所有权的智能指针，首先让我们通过一个例子看看它的基本用法：#include <string>
#include <iostream>
#include <boost/shared_ptr.hpp>
class implementation
{
public:
~implementation() { std::cout <<"destroying implementation\n"; }
void do_something() { std::cout << "did something\n"; }
};
void test()
{
boost::shared_ptr<implementation> sp1(new implementation());
std::cout<<"The Sample now has "<<sp1.use_count()<<" references\n";
boost::shared_ptr<implementation> sp2 = sp1;
std::cout<<"The Sample now has "<<sp2.use_count()<<" references\n";
sp1.reset();
std::cout<<"After Reset sp1. The Sample now has "<<sp2.use_count()<<" references\n";
sp2.reset();
std::cout<<"After Reset sp2.\n";
}
void main()
{
test();
}
effective c++条款13-17 “以对象管理资源”之shared_ptr浅析
标签：effective c++ 智能指针 boost shared_ptr
原文地址：http://blog.csdn.net/hustyangju/article/details/41648213
