diff --git a/Eigen/src/Core/Matrix.h b/Eigen/src/Core/Matrix.h
index ce0e4e6a2..c11a994a8 100644
--- a/Eigen/src/Core/Matrix.h
+++ b/Eigen/src/Core/Matrix.h
@@ -30,7 +30,7 @@ struct traits<Matrix<Scalar_, Rows_, Cols_, Options_, MaxRows_, MaxCols_>> {
     actual_alignment = ((Options_ & DontAlign) == 0) ? default_alignment : 0,
     required_alignment = unpacket_traits<PacketScalar>::alignment,
     packet_access_bit = (packet_traits<Scalar_>::Vectorizable &&
-                         (EIGEN_UNALIGNED_VECTORIZE || (actual_alignment >= required_alignment)))
+                         (EIGEN_UNALIGNED_VECTORIZE || (int(actual_alignment) >= int(required_alignment))))
                             ? PacketAccessBit
                             : 0
   };
@@ -48,7 +48,7 @@ struct traits<Matrix<Scalar_, Rows_, Cols_, Options_, MaxRows_, MaxCols_>> {
     Flags = compute_matrix_flags(Options_),
     Options = Options_,
     InnerStrideAtCompileTime = 1,
-    OuterStrideAtCompileTime = (Options & RowMajor) ? ColsAtCompileTime : RowsAtCompileTime,
+    OuterStrideAtCompileTime = (int(Options) & int(RowMajor)) ? ColsAtCompileTime : RowsAtCompileTime,
 
     // FIXME, the following flag in only used to define NeedsToAlign in PlainObjectBase
     EvaluatorFlags = LinearAccessBit | DirectAccessBit | packet_access_bit | row_major_bit,
diff --git a/Eigen/src/Core/TriangularMatrix.h b/Eigen/src/Core/TriangularMatrix.h
index afdb2425f..2b1683be9 100644
--- a/Eigen/src/Core/TriangularMatrix.h
+++ b/Eigen/src/Core/TriangularMatrix.h
@@ -184,7 +184,8 @@ class TriangularView
   enum {
     Mode = Mode_,
     Flags = internal::traits<TriangularView>::Flags,
-    TransposeMode = (Mode & Upper ? Lower : 0) | (Mode & Lower ? Upper : 0) | (Mode & (UnitDiag)) | (Mode & (ZeroDiag)),
+    TransposeMode = (int(Mode) & int(Upper) ? Lower : 0) | (int(Mode) & int(Lower) ? Upper : 0) |
+                    (int(Mode) & int(UnitDiag)) | (int(Mode) & int(ZeroDiag)),
     IsVectorAtCompileTime = false
   };
 
diff --git a/Eigen/src/Core/util/XprHelper.h b/Eigen/src/Core/util/XprHelper.h
index 5b7bdc077..555faa1cc 100644
--- a/Eigen/src/Core/util/XprHelper.h
+++ b/Eigen/src/Core/util/XprHelper.h
@@ -484,7 +484,7 @@ struct nested_eval {
                                       //      solution could be to count the number of temps?
     NAsInteger = n == Dynamic ? HugeCost : n,
     CostEval = (NAsInteger + 1) * ScalarReadCost + CoeffReadCost,
-    CostNoEval = NAsInteger * CoeffReadCost,
+    CostNoEval = int(NAsInteger) * int(CoeffReadCost),
     Evaluate = (int(evaluator<T>::Flags) & EvalBeforeNestingBit) || (int(CostEval) < int(CostNoEval))
   };
 
diff --git a/Eigen/src/SparseCore/SparseSelfAdjointView.h b/Eigen/src/SparseCore/SparseSelfAdjointView.h
index 129899c45..2f087c9c4 100644
--- a/Eigen/src/SparseCore/SparseSelfAdjointView.h
+++ b/Eigen/src/SparseCore/SparseSelfAdjointView.h
@@ -53,7 +53,7 @@ class SparseSelfAdjointView : public EigenBase<SparseSelfAdjointView<MatrixType,
  public:
   enum {
     Mode = Mode_,
-    TransposeMode = ((Mode & Upper) ? Lower : 0) | ((Mode & Lower) ? Upper : 0),
+    TransposeMode = ((int(Mode) & int(Upper)) ? Lower : 0) | ((int(Mode) & int(Lower)) ? Upper : 0),
     RowsAtCompileTime = internal::traits<SparseSelfAdjointView>::RowsAtCompileTime,
     ColsAtCompileTime = internal::traits<SparseSelfAdjointView>::ColsAtCompileTime
   };