On 14 April 2015 at 16:17, Federico Lenarduzzi wrote: > When the libstdc++ is compiled, the compiler sets the std::terminate_handler > function with __verbose_terminate_handler() or std::abort() depending on > _GLIBCXX_HOSTED && _GLIBCXX_VERBOSE being true or false. > > However, even if we compile with -fno-exceptions, the compiler will use > __verbose_terminate_handler(), which uses exceptions. Therefore, the library > is not fully exception-free.
I guess this makes sense, but you can just build with --disable-libstdcxx-verbose to have the same effect. > It also makes std::uncaught_exception() throw() return false if __EXCEPTIONS > is not defined. This part seems like a good idea, but we'll also need to do it to the new uncaught_exceptions() function about to be added, so let's wait until that in committed first (which will be shortly after the 5.1 release). The checks should use __cpp_exceptions not __EXCEPTIONS, see the current trunk.