../libs/utility/test/base_from_member_test.cpp:508:7: warning: field 'x_' will be initialized after base 'base_class' [-Wreorder-ctor]
1 warning generated.
                

../libs/utility/test/call_traits_test.cpp:241:12: warning: 'const' qualifier on reference type 'r_type' (aka 'int &') has no effect [-Wignored-reference-qualifiers]
1 warning generated.