Add <memory> header to all files using std::unique_ptr. Fixes https://github.com/ceres-solver/ceres-solver/issues/758 Change-Id: I884819ec62cf7dcb95368eb46f3c03a46bb5243f
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.