On 10/12/2020 16:10, webmaster wrote: (As a general rule, you'll get more useful responses if you use your name in your posts. It's common courtesy.)
> Is it possible to request such feature? > Of course you can file a request for it. Go to the gcc bugzilla site: <https://gcc.gnu.org/bugzilla/> First, search thoroughly to see if it is already requested - obvious duplicate requests just waste developers' time. If you find a duplicate, add a comment and put yourself on the cc list. If you don't find a duplicate, file it as a new bug. Given the replies on this list from gcc developers, I would not hold my breath waiting for this feature. It is unlikely to be implemented unless the relevant compiler passes are re-organised in some way, or extra information is tracked. So I don't think it will be a priority. However, it's always good to track these things - and if many people want a particular feature, it can't harm its chances of getting done eventually. mvh., David > Am 09.12.2020 um 16:45 schrieb webmaster: >> I have the following Code C\C++: >> >> static int foo = 0; >> >> static void bar(void) >> { >> foo = 1; >> } >> >> Here it is clear for the compiler that the variable foo can only be >> accessed from the same modul and not from ther modules. From the >> explanations before I understand that the variable is removed due to >> optimization. But I do not understand why GCC does not throws a warning. >> >> >From my point of view it is responsibility of the developer to remove >> the unused variable. >> > >
