Make evaluators non-copyable. This guarantee that evaluators storing temporaries do not introduce unwanted copy overhead.
Make evaluators non-copyable. This guarantee that evaluators storing temporaries do not introduce unwanted copy overhead.

madlib/eigen_backup,madlib/eigen_backup,rotorliu/eigen,madlib/eigen_backup,rotorliu/eigen,rotorliu/eigen,madlib/eigen_backup,rotorliu/eigen