C++ 11 in vxworks

I'm assuming you're using the WindRiver (diab) compiler, which is also what we're using for our VxWorks platform. If that's the case, I found a pdf on their website that pretty clearly outlines that they are compliant only up to C++03.

Link to the pdf

Support for ANSI C89, C99, and C++ 2003

Apparently, VxWorks also has GNU and ICC compiler support, but I'm not as familiar with how they work with VxWorks.

There are commercial versions of g++ available for vxWorks, which are supporting c++11. As far as I know these ports of g++ are available for vxWorks 7.0 or higher.