Convert internal enums to be class enums. Change-Id: Ide89c7115c3b12c0f2452a2969dc5523b3a7970f
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.