Std unique pointers were not being printed. The unique pointer layout was changed in libstdc++ 6.0.23.
|65–76 ↗||(On Diff #136749)|
This is somewhat nitpicky, but I think we should rename the tuple_sp variable, as in your case, it will not actually hold a tuple (it is some unique_ptr_impl object, IIRC). So, it should have some neutral name, and once you have the actual tuple object, then call it a "tuple". Feel free to move this code into a GetTuple() function or something...
Also, we prefer c++-style comments (//).