[Bug c++/11856] unsigned warning in template

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11856

--- Comment #32 from Jason Merrill <jason at gcc dot gnu.org> 2012-05-14 
12:56:09 UTC ---
Seems like another job for c_inhibit_evaluation_warnings.