Global exception handling in C++

Question

Can i implement global exception handling in C++? My requirement is try...catch block is not used in a piece of code then there should be a global exception handler which will handle all uncaught exception.

Can i achieve it, please give your valuable suggestion : )

Answer 1

i wanted to do the same, here's what i came up with

    std::set_terminate([]() -> void {
        std::cerr << "terminate called after throwing an instance of ";
        try
        {
            std::rethrow_exception(std::current_exception());
        }
        catch (const std::exception &ex)
        {
            std::cerr << typeid(ex).name() << std::endl;
            std::cerr << "  what(): " << ex.what() << std::endl;
        }
        catch (...)
        {
            std::cerr << typeid(std::current_exception()).name() << std::endl;
            std::cerr << " ...something, not an exception, dunno what." << std::endl;
        }
        std::cerr << "errno: " << errno << ": " << std::strerror(errno) << std::endl;
        std::abort();
    });

• in addition to checking what(), it also checks ernno/std::strerror() - in the future i intend to add stack traces as well through exeinfo/backtrace() too

• the catch(...) is in case someone threw something other than exception.. for example throw 1; (throw int :| )