1 class AutoTrace {
2 public:
3 typedef std::function<void()> AutoTraceFun;
4 AutoTrace(AutoTraceFun beginFun, AutoTraceFun endFun) : endFun_(endFun){
5 if (beginFun) {
6 beginFun();
7 }
8 }
9 ~AutoTrace() {
10 if (endFun_) {
11 endFun_();
12 }
13 }
14
15 private:
16 AutoTraceFun endFun_;
17 };
18
19 #define AUTO_TRACE_(beginFun, endFun, l) AutoTrace autoTrace_## l (beginFun, endFun);
20 #define AUTO_TRACE(beginFun, endFun, l) AUTO_TRACE_(beginFun, endFun, l)
21 #define AUTO_TRACE_TEMP_MEMBER(beginFun, endFun) AUTO_TRACE(beginFun, endFun, __LINE__)
