On 10/02/2016 09:55, manojmaybe wrote:
> I have used the test variable as:
>
> int statistics()
> {
> test = &(stud);
> assert(test->total != 0);
> return true;
> }
>
> then get error: variable 'test' set but not used [-Werror=unused-but-set-variable]
Note: you're more likely to get help when you provide a complete
example, i.e. one that others can compile and test locally.
#include <assert.h>
struct obj { int total; } stud;
int statistics()
{
struct obj *test;
test = &stud;
assert(test->total != 0);
return 1;
}
$ gcc -Wall -Wextra -Werror -c assert.c
No errors there.
$ gcc -DNDEBUG -Wall -Wextra -Werror -c assert.c
assert.c: In function 'statistics':
assert.c:5:17: error: variable 'test' set but not used [-Werror=unused-but-set-variable]
struct obj *test;
^
cc1: all warnings being treated as errors
Did you check whether NDEBUG is set? (It turns assert() into a NOP.)
http://man7.org/linux/man-pages/man3/assert.3.html
Regards.
