Re: No warning for module global variable which is set but never used

2020-12-10 Thread webmaster
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.) > > >

Re: No warning for module global variable which is set but never used

2020-12-10 Thread 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:

Re: No warning for module global variable which is set but never used

2020-12-10 Thread webmaster
Is it possible to request such feature? 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 an

Re: No warning for module global variable which is set but never used

2020-12-09 Thread 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 op

Re: No warning for module global variable which is set but never used

2020-12-09 Thread webmaster
I'm talking about C/C++ :-) Ursprüngliche Nachricht Von: Tobias Burnus Datum: 09.12.20 13:15 (GMT+01:00) An: webmaster Betreff: Re: No warning for module global variable which is set but never used The example below is for Fortran – but the same applies to C++ modul

Re: No warning for module global variable which is set but never used

2020-12-09 Thread webmaster
Von: Jakub Jelinek Datum: 09.12.20 11:00 (GMT+01:00) An: David Brown Cc: webmaster , gcc@gcc.gnu.org Betreff: Re: No warning for module global variable which is set but never used On Wed, Dec 09, 2020 at 10:50:22AM +0100, David Brown wrote:> I'd say that it makes sense to have

Re: No warning for module global variable which is set but never used

2020-12-09 Thread David Brown
On 09/12/2020 11:00, Jakub Jelinek wrote: > On Wed, Dec 09, 2020 at 10:50:22AM +0100, David Brown wrote: >> I'd say that it makes sense to have such a warning as a natural >> enhancement to the existing "-Wunused-but-set-variable" warning. But I > > That is not really possible. > The -Wunused-but

Re: No warning for module global variable which is set but never used

2020-12-09 Thread Jakub Jelinek via Gcc
On Wed, Dec 09, 2020 at 10:50:22AM +0100, David Brown wrote: > I'd say that it makes sense to have such a warning as a natural > enhancement to the existing "-Wunused-but-set-variable" warning. But I That is not really possible. The -Wunused-but-set-* warning works by having two bits for the DECL

Re: No warning for module global variable which is set but never used

2020-12-09 Thread David Brown
On 09/12/2020 10:25, webmaster wrote: > Hello,I'm wondering why GCC does not throw any warning when a module global > variable is set (write) but never used (read).Is this behavior wanted? Does > it makes sense to add such warning?Greets > How do you expect the compiler to know if the variable

Re: No warning for module global variable which is set but never used

2020-12-09 Thread Jonathan Wakely via Gcc
On Wed, 9 Dec 2020 at 09:28, webmaster wrote: > > Hello,I'm wondering why GCC does not throw any warning when a module global > variable is set (write) but never used (read).Is this behavior wanted? Does > it makes sense to add such warning?Greets This question seems to be more appropriate for

No warning for module global variable which is set but never used

2020-12-09 Thread webmaster
Hello,I'm wondering why GCC does not throw any warning when a module global variable is set (write) but never used (read).Is this behavior wanted? Does it makes sense to add such warning?Greets