Guyf的专栏

//#ifndef COMMCOMMAND_H#define COMMCOMMAND_H#include#includetemplate class CommCommand{private: std::function m_f;public: //接受可调用对象的函数包装器 template::value>::type> void Wrap(F &&f, Args &

struct TimeElapsedAspect{ void Before(int i) { m_lastTime = m_t.elapsed(); } void After(int i) { std::cout << "time elapsed: " << m_t.elapsed() - m_lastTime << "ms" <<std::endl; }private:

#ifndef AOP_h#define AOP_h#define HAS_MEMBER(member)\templatestruct has_member_##member\{\private:\ template static auto Check(int) -> decltype(std::declval().member(std::declval()...), std::tr

weak_ptr是用来监视shared_ptr的，不会使引用计数增加。 std::shared_ptr t(new int(10)); std::weak_ptrwk(t); if(wk.expired()) std::cout<<"t is expired"<<std::endl; else std::cout