c++ - Why is my terminate handler never invoked? -

i have read 1 can call std::set_terminate() use own function global exception handler, catches unhandled exceptions.

simplified code of program:

#include <exception> #include <stdexcept> #include <iostream>  void my_terminate_handler() {     std::cerr << "terminate handler" << std::endl;      std::cin.get();      std::abort(); }  int main() {     std::set_terminate(my_terminate_handler);      int = 1;     i--;      std::cout << 1/i << std::endl;      return 0; } 

why my_terminate_handler() never invoked? both in vc++ 2013, 2015 rc , gcc++-4.8.

the terminate handler called if program calls terminate. can happen various reasons - including uncaught exception - division 0 isn't 1 of reasons. gives undefined behaviour; typically, raises signal (not c++ exception), , you'd need install signal handler, not terminate handler, catch that.