Ahhh, ok. Good too know. I think also it is not of high priority ;-)
Greets Patrick Am 10.12.2020 um 16:26 schrieb David Brown: > 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. >>> >> >> -- ___ _ _ _ _ _ __ _ _ _ _ |_ _| __| (_)__| | (_) |_ / _|___ _ _ | |_ ___| |_ | |_ _| |___ | | / _` | / _` | | | _| | _/ _ \ '_| | _/ -_) ' \ | | || | |_ / |___| \__,_|_\__,_| |_|\__| |_| \___/_| \__\___|_||_| |_|\_,_|_/__| -----BEGIN PGP PUBLIC KEY BLOCK----- Version: GnuPG v2.0.17 (MingW32) mQENBFHMmT8BCAC0smvU7Bq1ABxAhvBRn7d4ekkk95aCE4TTQo4wy1z/rGLhQfdt dhiD+Vy61vGrsdK3ei5sW6rBvX2m8+YmBi+8AAgSiZmS0JM3Zz3cmTi5oh0D/yM8 4aDj7wQYfJyzSmYN8InAQ5eA77lwIdqG27kR9wga2szeJwCnWReta0R+7YFkpUW+ zUlf4SWcUx5SmBsaiELQpm+Qcn+fyopo12RX6YVmoNPBvN2nDXDnRhUCKGc+0xhD UrBpCHrApK6sTnMsD34ClCLTL2L1gckQ0AsQqY3PJlx3R8kIJxlmr6R3WnjPMIG0 lqrukB9PcOrHM1MZXK1gK6AtypHBN98lr8Z9ABEBAAG0KndlYm1hc3RlciA8d2Vi bWFzdGVyQGRlZmNvbi1jYy5keW5kbnMub3JnPokBPgQTAQIAKAUCUcyZPwIbIwUJ CWYBgAYLCQgHAwIGFQgCCQoLBBYCAwECHgECF4AACgkQcN1vxvRQl+0SEwf+KXjf YtiSUSVS11uqeQ/8g46NwmNa91P3toZvEd7vhLSbjnL9bi/vApzNnUTGT3VP4/NA dg9SbR4qKlSr8T+YikRMV3tiuiVq8m7g00qM9y8MIomwJTounz8VdO/aJXFSOxAK Bb6ElREADspCzr2qSZCnozWUzbd+b8owbGeRRq3e33Aa5Nlm/xDRxGDWANbaIA8q Gkibvy3vWEwrxiwsakvHGaEZnPEtlNm3M1xcmFAuyl73qzUMkLN0u9E/2igo4EB5 EdMb5Ab5hfWdljxBqJr0tsvMfSK4VkzMCbKYkTqHZIRPQnhiSBE6Yo1Q6RCl/Hht bkvU4RA0J+NkXMZljrkBDQRRzJk/AQgA0HojJnK0uhEkAnbmszYsf477DV+LD02s ZEAlLGhJlf9qYaDiPMPwaZ3nK8/PYKzPpBWfHgRQP97rLHPIVJYl3BHDa/nWeZ2b e/HzYhpX0djbK9qe6W/CTfGbXmC/y+4dDGB8dvtTAW3JILm7xEdwiWtywozEVy7V lnMK4JQvlfOh+3XO6qv71FXyuRkObvkYzqvxUYHewtvvObcVxXHP0C0O6LB44iAW 2boZVVuiHdudnyNAezJajPMUT8SnI0bwL6+0TgnHL4cKNUEPQljIrrvi+9nCkq7V uBtnsYtyoo2reoxmCbX/Z1zZsxdUcKpeJHlc5AypyN8DUJ+APJ9NnwARAQABiQEl BBgBAgAPBQJRzJk/AhsMBQkJZgGAAAoJEHDdb8b0UJftOY0H/1TChmQrJC/qzefW PK7EqFlBg3TIEXdu8JHjF42ZOgzQRfp7E2wWzEx0Y45lNXMs6Yg15hWCEDaUDF6F 5WZKNrP8xIldyR9Aw7fyKqjZ9UuKovqofHsCiaSO7nWzGM6GF3nBDNI9NcFve/wN wggyjAbohOJrJGal3N0HlG3cakqjEmjBe1gQEMC0ZPlWstb/cqqr49TNPrRmQc4P SyGffh8Xqhw94m1LDBXFEaYe7AxjNk1sPAVfO1rOdLF6GOun/UwgbhDQX/Rb9C3t AhjSgyFEiR/gfrUZ7R6SY51qOUf1lN5ZN85C/x27XoZWYlsNaH3Ei6nG+yeswBMk ZRMbezQ= =Med3 -----END PGP PUBLIC KEY BLOCK-----
