On 21 April 2015 at 10:50, Goswin von Brederlow wrote: > On Tue, Apr 21, 2015 at 10:34:28AM +0100, Jonathan Wakely wrote: >> On 21 April 2015 at 10:17, Goswin von Brederlow wrote: >> > Does the resulting binary work? >> >> It should do. >> >> > Doesn't "no-exceptions" break ABI >> > compatibility with the other object files and breaks when an exception >> > is thrown across the "no-exceptions" object? >> >> No, there's no effect on ABI. >> >> You can't catch it in the no-exceptions object, obviously, because >> 'catch' is not allowed in that file, but the exception simply passes >> through any frames without unwinding information, and can be caught >> further up the stack. > > But then it doesn't unwind them so destructors won't be called that > should be, right? Right. But if the file compiled with -fno-exceptions doesn't call anything that can throw then that's not a problem. If it does call things that can throw it needs to be careful with resources.
