[Bug c++/50660] warning about pass NULL to non pointer argument happens twice for template function call

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50660

--- Comment #3 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-10-07 
18:57:12 UTC ---
I guess we can avoid the <cstddef>, just use __null.