fsm
fsm copied to clipboard
r-lyeh-archived
crash
It should crash if the queue std::deque< states::iterator > aborted has more than 2 elements . Your Code is useful , Thank you very much !
hey, can you paste a code snippet that crashes? i will take a look into it thx
hey, my crash code like this , may be it is logic unreasonable , but your attention is to delete all aborted elements in function command , crash message : deque iterator not decrementable cd_player cd; cd.fsm.push(fsm::state(play)); cd.fsm.push(fsm::state(open)); cd.fsm.command(close);
in order to avoid error , i try to change code like this : // user commands bool command(const fsm::state &trigger) { size_t size = this->size(); if (!size) { return false; } current_trigger = fsm::state(); std::deque< states::iterator > aborted; for (auto it = deque.rbegin(); it != deque.rend(); ++it) { fsm::state &self = _it; if (!call(self, trigger)) { aborted.push_back(it.base() - 1); continue; } for (auto it = aborted.begin(), end = aborted.end(); it != end; ++it) { call(__it, 'quit'); deque.erase(_it); } current_trigger = trigger; return true; } return false; }
@shafeng , i builded the code and it works , would you paste the error message please .