Re: GCC warning options for numerical programs
|[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]|
On 23 April 2012 16:26, Jeffrey Walton wrote: > > What worries me is missing a detail and later getting pwn'd. Consider > how many times Dan Rosenberg has dinged the l33t k3rn3l hack3rz for > CompSci 101 stuff such as not validating parameters or using > uninitialized variables. GCC will warn for some of these CompSci 101 > transgressions. How many of them are *not* covered by -Wall -Wextra? If there are GCC warnings not included by -Wall -Wextra that would have helped avoid those problems then you might have a point. If the warnings are already enabled by one of those options then -Weverything won't help. Hitting programmers with a cluebat for not using -Wall would be more effective. > Additionally, the kernel's random.c and prng.c violate > GCC's aliasing rules. I believe GCC warns of aliasing and punning > (correct me here), but the kernel folks are too l33t to use GCC's > static analysis capabilities . How would ading -Weverything change that?