diff --git a/unsupported/Eigen/CXX11/src/Tensor/TensorBroadcasting.h b/unsupported/Eigen/CXX11/src/Tensor/TensorBroadcasting.h
index a77903dca..8cb41aec8 100644
--- a/unsupported/Eigen/CXX11/src/Tensor/TensorBroadcasting.h
+++ b/unsupported/Eigen/CXX11/src/Tensor/TensorBroadcasting.h
@@ -30,7 +30,6 @@ struct traits<TensorBroadcastingOp<Broadcast, XprType> > : public traits<XprType
   typedef typename XprTraits::Index Index;
   typedef typename XprType::Nested Nested;
   typedef typename remove_reference<Nested>::type _Nested;
-  static const int NumDimensions = XprTraits::NumDimensions;
 };
 
 template<typename Broadcast, typename XprType>
diff --git a/unsupported/Eigen/CXX11/src/Tensor/TensorContraction.h b/unsupported/Eigen/CXX11/src/Tensor/TensorContraction.h
index 8e898619d..c5ec42cf4 100644
--- a/unsupported/Eigen/CXX11/src/Tensor/TensorContraction.h
+++ b/unsupported/Eigen/CXX11/src/Tensor/TensorContraction.h
@@ -848,8 +848,8 @@ struct TensorEvaluator<const TensorContractionOp<Indices, LeftArgType, RightArgT
     const Index kc = blocking.kc();
     const Index mc = (std::min)(m, blocking.mc());
     const Index nc = (std::min)(n, blocking.nc());
-    int sizeA = mc * kc;
-    int sizeB = kc * nc;
+    const Index sizeA = mc * kc;
+    const Index sizeB = kc * nc;
 
     LhsScalar* blockA = static_cast<LhsScalar *>(this->m_device.allocate(sizeA * sizeof(LhsScalar)));
     RhsScalar* blockB = static_cast<RhsScalar *>(this->m_device.allocate(sizeB * sizeof(RhsScalar)));
diff --git a/unsupported/Eigen/CXX11/src/Tensor/TensorImagePatch.h b/unsupported/Eigen/CXX11/src/Tensor/TensorImagePatch.h
index ce916fdfd..0dfb6913b 100644
--- a/unsupported/Eigen/CXX11/src/Tensor/TensorImagePatch.h
+++ b/unsupported/Eigen/CXX11/src/Tensor/TensorImagePatch.h
@@ -37,7 +37,6 @@ struct traits<TensorImagePatchOp<Rows, Cols, XprType> > : public traits<XprType>
   typedef typename XprTraits::Index Index;
   typedef typename XprType::Nested Nested;
   typedef typename remove_reference<Nested>::type _Nested;
-  static const int NumDimensions = XprTraits::NumDimensions + 1;
 };
 
 template<DenseIndex Rows, DenseIndex Cols, typename XprType>
diff --git a/unsupported/Eigen/CXX11/src/Tensor/TensorIndexList.h b/unsupported/Eigen/CXX11/src/Tensor/TensorIndexList.h
index 010221e74..eaf0195ce 100644
--- a/unsupported/Eigen/CXX11/src/Tensor/TensorIndexList.h
+++ b/unsupported/Eigen/CXX11/src/Tensor/TensorIndexList.h
@@ -110,7 +110,7 @@ struct tuple_coeff<0> {
     update_value(std::get<0>(t), value);
   }
   template <typename... T>
-  static constexpr bool value_known_statically(const DenseIndex i, const std::tuple<T...>& t) {
+  static constexpr bool value_known_statically(const DenseIndex i, const std::tuple<T...>&) {
     //    eigen_assert (i == 0);  // gcc fails to compile assertions in constexpr
     return is_compile_time_constant<typename std::tuple_element<0, std::tuple<T...> >::type>::value & (i == 0);
   }
@@ -190,7 +190,7 @@ template <typename FirstType, typename... OtherTypes>
 struct index_statically_eq<IndexList<FirstType, OtherTypes...> > {
   constexpr bool operator() (const DenseIndex i, const DenseIndex value) const {
     return IndexList<FirstType, OtherTypes...>().value_known_statically(i) &
-        IndexList<FirstType, OtherTypes...>()[i] == value;
+        (IndexList<FirstType, OtherTypes...>()[i] == value);
   }
 };
 
@@ -198,7 +198,7 @@ template <typename FirstType, typename... OtherTypes>
 struct index_statically_eq<const IndexList<FirstType, OtherTypes...> > {
   constexpr bool operator() (const DenseIndex i, const DenseIndex value) const {
     return IndexList<FirstType, OtherTypes...>().value_known_statically(i) &
-        IndexList<FirstType, OtherTypes...>()[i] == value;
+        (IndexList<FirstType, OtherTypes...>()[i] == value);
   }
 };
 
@@ -213,7 +213,7 @@ template <typename FirstType, typename... OtherTypes>
 struct index_statically_ne<IndexList<FirstType, OtherTypes...> > {
   constexpr bool operator() (const DenseIndex i, const DenseIndex value) const {
     return IndexList<FirstType, OtherTypes...>().value_known_statically(i) &
-        IndexList<FirstType, OtherTypes...>()[i] != value;
+        (IndexList<FirstType, OtherTypes...>()[i] != value);
   }
 };
 
@@ -221,7 +221,7 @@ template <typename FirstType, typename... OtherTypes>
 struct index_statically_ne<const IndexList<FirstType, OtherTypes...> > {
   constexpr bool operator() (const DenseIndex i, const DenseIndex value) const {
     return IndexList<FirstType, OtherTypes...>().value_known_statically(i) &
-        IndexList<FirstType, OtherTypes...>()[i] != value;
+        (IndexList<FirstType, OtherTypes...>()[i] != value);
   }
 };