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-rw-r--r--Eigen/src/Core/util/Meta.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/Eigen/src/Core/util/Meta.h b/Eigen/src/Core/util/Meta.h
index f1edf7d6f..792f65b33 100644
--- a/Eigen/src/Core/util/Meta.h
+++ b/Eigen/src/Core/util/Meta.h
@@ -210,4 +210,11 @@ template<typename T, int n=1> struct ei_nested
>::ret type;
};
+template<unsigned int Flags> struct ei_are_flags_consistent
+{
+ enum { ret = !( (Flags&UnitDiagBit && Flags&ZeroDiagBit)
+ || (Flags&UpperTriangularBit && Flags&LowerTriangularBit) )
+ };
+};
+
#endif // EIGEN_META_H