-new: recursive costs system, useful to determine automatically

 when to evaluate arguments and when to meta-unroll.
-use it in Product to determine when to eval args. not yet used
 to determine when to unroll. for now, not used anywhere else but
 that'll follow.
-fix badness of my last commit

1 files changed, 2 insertions, 1 deletions

diff --git a/Eigen/src/Core/Minor.h b/Eigen/src/Core/Minor.h
index 62941d764..911ac2151 100644
--- a/Eigen/src/Core/Minor.h
+++ b/Eigen/src/Core/Minor.h
@@ -50,7 +50,8 @@ struct ei_traits<Minor<MatrixType> >
                                 MatrixType::MaxRowsAtCompileTime - 1 : Dynamic,
     MaxColsAtCompileTime = (MatrixType::MaxColsAtCompileTime != Dynamic) ?
                                 MatrixType::MaxColsAtCompileTime - 1 : Dynamic,
-    Flags = MatrixType::Flags
+    Flags = MatrixType::Flags,
+    CoeffReadCost = MatrixType::CoeffReadCost
   };
 };