diff --git a/unsupported/Eigen/CXX11/src/Tensor/TensorIntDiv.h b/unsupported/Eigen/CXX11/src/Tensor/TensorIntDiv.h
index d1569d436..fd2441894 100644
--- a/unsupported/Eigen/CXX11/src/Tensor/TensorIntDiv.h
+++ b/unsupported/Eigen/CXX11/src/Tensor/TensorIntDiv.h
@@ -149,7 +149,7 @@ struct TensorIntDivisor {
   // type numerator should also be less than 2^32-1.
   EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE T divide(const T numerator) const {
     eigen_assert(static_cast<typename UnsignedTraits<T>::type>(numerator) < NumTraits<UnsignedType>::highest()/2);
-    eigen_assert(numerator >= 0);
+    //eigen_assert(numerator >= 0); // this is implicitly asserted by the line above
 
     UnsignedType t1 = muluh(multiplier, numerator);
     UnsignedType t = (static_cast<UnsignedType>(numerator) - t1) >> shift1;
diff --git a/unsupported/test/alignedvector3.cpp b/unsupported/test/alignedvector3.cpp
index 7da05c264..252cb1d3f 100644
--- a/unsupported/test/alignedvector3.cpp
+++ b/unsupported/test/alignedvector3.cpp
@@ -29,8 +29,8 @@ void alignedvector3()
   typedef Matrix<Scalar,3,3> Mat33;
   typedef AlignedVector3<Scalar> FastType;
   RefType  r1(RefType::Random()), r2(RefType::Random()), r3(RefType::Random()),
-           r4(RefType::Random()), r5(RefType::Random()), r6(RefType::Random());
-  FastType f1(r1), f2(r2), f3(r3), f4(r4), f5(r5), f6(r6);
+           r4(RefType::Random()), r5(RefType::Random());
+  FastType f1(r1), f2(r2), f3(r3), f4(r4), f5(r5);
   Mat33 m1(Mat33::Random());
   
   VERIFY_IS_APPROX(f1,r1);
diff --git a/unsupported/test/mpreal/mpreal.h b/unsupported/test/mpreal/mpreal.h
index b643309c0..104cb686f 100644
--- a/unsupported/test/mpreal/mpreal.h
+++ b/unsupported/test/mpreal/mpreal.h
@@ -334,10 +334,10 @@ public:
 
 #if defined (MPREAL_HAVE_EXPLICIT_CONVERTERS)
     explicit operator bool               () const { return toBool();       }
-    explicit operator int                () const { return toLong();       }
+    explicit operator int                () const { return int(toLong());  }
     explicit operator long               () const { return toLong();       }
     explicit operator long long          () const { return toLong();       }
-    explicit operator unsigned           () const { return toULong();      }
+    explicit operator unsigned           () const { return unsigned(toULong()); }
     explicit operator unsigned long      () const { return toULong();      }
     explicit operator unsigned long long () const { return toULong();      }
     explicit operator float              () const { return toFloat();      }