Use override instead of virtual for subclasses. Now that we are using c++11, it is safer to use override in subclasses instead of virtual. This CL does it for the interface, a follow up CL will do it for other parts of the code base. Change-Id: Ice8d0f4355cb700019d7a9c1566fbff0099e97d6
Ceres Solver is an open source C++ library for modeling and solving large, complicated optimization problems. It is a feature rich, mature and performant library which has been used in production at Google since 2010. Ceres Solver can solve two kinds of problems.
Please see ceres-solver.org for more information.