diff --git a/Eigen/src/Core/Assign.h b/Eigen/src/Core/Assign.h
index b06d07d05..3a17152f0 100644
--- a/Eigen/src/Core/Assign.h
+++ b/Eigen/src/Core/Assign.h
@@ -41,7 +41,7 @@ public:
     DstIsAligned = Derived::Flags & AlignedBit,
     DstHasDirectAccess = Derived::Flags & DirectAccessBit,
     SrcIsAligned = OtherDerived::Flags & AlignedBit,
-    JointAlignment = DstIsAligned && SrcIsAligned ? Aligned : Unaligned
+    JointAlignment = bool(DstIsAligned) && bool(SrcIsAligned) ? Aligned : Unaligned
   };
 
 private:
@@ -106,9 +106,9 @@ public:
                                              : int(NoUnrolling)
                   )
               : int(Traversal) == int(LinearVectorizedTraversal)
-                ? ( int(MayUnrollCompletely) && int(DstIsAligned) ? int(CompleteUnrolling) : int(NoUnrolling) )
+                ? ( bool(MayUnrollCompletely) && bool(DstIsAligned) ? int(CompleteUnrolling) : int(NoUnrolling) )
               : int(Traversal) == int(LinearTraversal)
-                ? ( int(MayUnrollCompletely) ? int(CompleteUnrolling) : int(NoUnrolling) )
+                ? ( bool(MayUnrollCompletely) ? int(CompleteUnrolling) : int(NoUnrolling) )
               : int(NoUnrolling)
   };
 
diff --git a/Eigen/src/Core/Redux.h b/Eigen/src/Core/Redux.h
index 25febb773..f9f5a95d5 100644
--- a/Eigen/src/Core/Redux.h
+++ b/Eigen/src/Core/Redux.h
@@ -216,7 +216,7 @@ struct redux_impl<Func, Derived, LinearVectorizedTraversal, NoUnrolling>
     const Index packetSize = packet_traits<Scalar>::size;
     const Index alignedStart = first_aligned(mat);
     enum {
-      alignment = (Derived::Flags & DirectAccessBit) || (Derived::Flags & AlignedBit)
+      alignment = bool(Derived::Flags & DirectAccessBit) || bool(Derived::Flags & AlignedBit)
                 ? Aligned : Unaligned
     };
     const Index alignedSize = ((size-alignedStart)/packetSize)*packetSize;