id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
3381	Compiler warning for is_signed	rbock@…	John Maddock	"Hi,

with g++ 4.2.4, I get the following warning when using boost::is_signed<long long unsigned int> with -Wall -Wextra:

type_traits/is_signed.hpp:33: warning: comparison of unsigned expression < 0 is always false

I fixed this for myself by replacing

(static_cast<no_cv_t>(-1) < 0)

by

!(static_cast<no_cv_t>(-1) > 0)

Regards,

Roland"	Bugs	closed	Boost 1.41.0	type_traits	Boost 1.40.0	Problem	fixed