Roland Bock wrote:
Mateusz Loskot wrote:
Currently I get compiler warnings about my_param being unused when compiling with NDEBUG defined.
Yes, that is a problem though of different nature than categories of assertions.
I'd be glad to get rid of them. And I certainly do not want to have my code sprinkled with
#ifdef NDEBUG void my_method(const int&) #else void my_method(const int& my_param) #endif { assert(my_param); }
AFAIK, this is an issue of particular implementation you use. The assert macro from GNU C Library wraps its argument cast to void if NDEBUG is defined. No warning is issued.
Best regards,
Hmm. I use gcc (4.2.4) and I get the warning (-Wall -Wextra).
I forgotten about -Wextra option and now GCC 4.4.1 reports the same worning, indeed. I was wrong, the assert macro is not that clever as I suggested $ g++ -E -pedantic -Wall -Wextra -DNDEBUG test.cpp int main() { int* p = 0; (static_cast<void> (0)); // assert macro } $ g++ -pedantic -Wall -Wextra -DNDEBUG test.cpp test.cpp: In function ‘int main()’: test.cpp:4: warning: unused variable ‘p’ Best regards, -- Mateusz Loskot, http://mateusz.loskot.net Charter Member of OSGeo, http://osgeo.org