Some header files have using namespace:
https://github.com/rpiRobotics/linear-subproblem-solutions/blob/fd35b3b4abb3cb8baa85b1e62f0011f424fc8d26/cpp/%2Bsubproblem_setups/sp_2E.h#L14
Don't use using namespace in header files. This pollutes any file that includes the header, and can cause unpredictable results. Fully qualify instead, for example use Eigen:;Vector3d.
Some header files have
using namespace:https://github.com/rpiRobotics/linear-subproblem-solutions/blob/fd35b3b4abb3cb8baa85b1e62f0011f424fc8d26/cpp/%2Bsubproblem_setups/sp_2E.h#L14
Don't use
using namespacein header files. This pollutes any file that includes the header, and can cause unpredictable results. Fully qualify instead, for example useEigen:;Vector3d.