Added to possibility to compile unit tests at maximum warning level.

Silenced (amongst others) many conversion related warnings.

Eigen/src/Array/Functors.h

@@ -43,6 +43,8 @@ struct ei_scalar_add_op {
   inline const PacketScalar packetOp(const PacketScalar& a) const
   { return ei_padd(a, ei_pset1(m_other)); }
   const Scalar m_other;
+private:
+  ei_scalar_add_op& operator=(const ei_scalar_add_op&);
 };
 template<typename Scalar>
 struct ei_functor_traits<ei_scalar_add_op<Scalar> >
@@ -128,6 +130,8 @@ struct ei_scalar_pow_op {
   inline ei_scalar_pow_op(const Scalar& exponent) : m_exponent(exponent) {}
   inline Scalar operator() (const Scalar& a) const { return ei_pow(a, m_exponent); }
   const Scalar m_exponent;
+private:
+  ei_scalar_pow_op& operator=(const ei_scalar_pow_op&);
 };
 template<typename Scalar>
 struct ei_functor_traits<ei_scalar_pow_op<Scalar> >

Eigen/src/Array/VectorwiseOp.h

@@ -147,6 +147,8 @@ struct ei_member_redux {
   inline result_type operator()(const MatrixBase<Derived>& mat) const
   { return mat.redux(m_functor); }
   const BinaryOp m_functor;
+private:
+  ei_member_redux& operator=(const ei_member_redux&);
 };
 
 /** \array_module \ingroup Array_Module

Eigen/src/Cholesky/LDLT.h

@@ -275,6 +275,8 @@ struct ei_solve_retval<LDLT<_MatrixType>, Rhs>
     dst = rhs();
     dec().solveInPlace(dst);
   }
+private:
+  ei_solve_retval& operator=(const ei_solve_retval&);
 };
 
 /** This is the \em in-place version of solve().

Eigen/src/Cholesky/LLT.h

@@ -270,6 +270,8 @@ struct ei_solve_retval<LLT<_MatrixType, UpLo>, Rhs>
     dst = rhs();
     dec().solveInPlace(dst);
   }
+private:
+  ei_solve_retval_base& operator=(const ei_solve_retval_base&);
 };
 
 /** This is the \em in-place version of solve().

Eigen/src/Core/Flagged.h

@@ -111,6 +111,9 @@ template<typename ExpressionType, unsigned int Added, unsigned int Removed> clas
 
   protected:
     ExpressionTypeNested m_matrix;
+
+  private:
+    Flagged& operator=(const Flagged&);
 };
 
 /** \deprecated it is only used by lazy() which is deprecated

Eigen/src/Core/SelfAdjointView.h

@@ -150,8 +150,10 @@ template<typename MatrixType, unsigned int UpLo> class SelfAdjointView
     const LDLT<PlainMatrixType> ldlt() const;
 
   protected:
-
     const typename MatrixType::Nested m_matrix;
+
+  private:
+    SelfAdjointView& operator=(const SelfAdjointView&);
 };
 
 

Eigen/src/Core/util/Memory.h

@@ -210,15 +210,15 @@ template<typename T, bool Align> inline void ei_conditional_aligned_delete(T *pt
 }
 
 /** \internal \returns the number of elements which have to be skipped such that data are 16 bytes aligned */
-template<typename Scalar>
-inline static int ei_alignmentOffset(const Scalar* ptr, int maxOffset)
+template<typename Scalar, typename Integer>
+inline static Integer ei_alignmentOffset(const Scalar* ptr, Integer maxOffset)
 {
   typedef typename ei_packet_traits<Scalar>::type Packet;
-  const int PacketSize = ei_packet_traits<Scalar>::size;
-  const int PacketAlignedMask = PacketSize-1;
+  const Integer PacketSize = ei_packet_traits<Scalar>::size;
+  const Integer PacketAlignedMask = PacketSize-1;
   const bool Vectorized = PacketSize>1;
   return Vectorized
-          ? std::min<int>( (PacketSize - (int((size_t(ptr)/sizeof(Scalar))) & PacketAlignedMask))
+          ? std::min<Integer>( (PacketSize - (Integer((Integer(ptr)/sizeof(Scalar))) & PacketAlignedMask))
                            & PacketAlignedMask, maxOffset)
           : 0;
 }

Eigen/src/Geometry/Homogeneous.h

@@ -241,6 +241,8 @@ struct ei_homogeneous_left_product_impl<Homogeneous<MatrixType,Vertical>,Lhs>
 
   const typename Lhs::Nested m_lhs;
   const typename MatrixType::Nested m_rhs;
+private:
+  ei_homogeneous_left_product_impl& operator=(const ei_homogeneous_left_product_impl&);
 };
 
 template<typename MatrixType,typename Rhs>
@@ -280,6 +282,8 @@ struct ei_homogeneous_right_product_impl<Homogeneous<MatrixType,Horizontal>,Rhs>
   const typename MatrixType::Nested m_lhs;
   const typename Rhs::Nested m_rhs;
 
+private:
+  ei_homogeneous_right_product_impl& operator=(const ei_homogeneous_right_product_impl&);
 };
 
 #endif // EIGEN_HOMOGENEOUS_H

Eigen/src/LU/FullPivLU.h

@@ -562,6 +562,9 @@ struct ei_kernel_retval<FullPivLU<_MatrixType> >
     for(int i = rank(); i < cols; ++i) dst.row(dec().permutationQ().indices().coeff(i)).setZero();
     for(int k = 0; k < dimker; ++k) dst.coeffRef(dec().permutationQ().indices().coeff(rank()+k), k) = Scalar(1);
   }
+
+private:
+  ei_kernel_retval& operator=(const ei_kernel_retval&);
 };
 
 /***** Implementation of image() *****************************************************/
@@ -599,6 +602,9 @@ struct ei_image_retval<FullPivLU<_MatrixType> >
     for(int i = 0; i < rank(); ++i)
       dst.col(i) = originalMatrix().col(dec().permutationQ().indices().coeff(pivots.coeff(i)));
   }
+
+private:
+  ei_image_retval& operator=(const ei_image_retval&);
 };
 
 /***** Implementation of solve() *****************************************************/
@@ -659,6 +665,9 @@ struct ei_solve_retval<FullPivLU<_MatrixType>, Rhs>
     for(int i = nonzero_pivots; i < dec().matrixLU().cols(); ++i)
       dst.row(dec().permutationQ().indices().coeff(i)).setZero();
   }
+
+private:
+  ei_solve_retval& operator=(const ei_solve_retval&);
 };
 
 /******* MatrixBase methods *****************************************************************/

Eigen/src/LU/Inverse.h

@@ -258,6 +258,8 @@ struct ei_inverse_impl : public ReturnByValue<ei_inverse_impl<MatrixType> >
   {
     ei_compute_inverse<MatrixTypeNestedCleaned, Dest>::run(m_matrix, dst);
   }
+private:
+  ei_inverse_impl& operator=(const ei_inverse_impl&);
 };
 
 /** \lu_module

Eigen/src/QR/HouseholderQR.h

@@ -237,6 +237,8 @@ struct ei_solve_retval<HouseholderQR<_MatrixType>, Rhs>
     dst.corner(TopLeft, rank, c.cols()) = c.corner(TopLeft, rank, c.cols());
     dst.corner(BottomLeft, cols-rank, c.cols()).setZero();
   }
+private:
+  ei_solve_retval& operator=(const ei_solve_retval&);
 };
 
 #endif // EIGEN_HIDE_HEAVY_CODE

Eigen/src/SVD/SVD.h

@@ -190,7 +190,7 @@ SVD<MatrixType>& SVD<MatrixType>::compute(const MatrixType& matrix)
   SingularValuesType& W = m_sigma;
 
   bool flag;
-  int i,its,j,k,l,nm;
+  int i=0,its=0,j=0,k=0,l=0,nm=0;
   Scalar anorm, c, f, g, h, s, scale, x, y, z;
   bool convergence = true;
   Scalar eps = dummy_precision<Scalar>();
@@ -456,6 +456,8 @@ struct ei_solve_retval<SVD<_MatrixType>, Rhs>
       dst.col(j) = dec().matrixV() * dst.col(j);
     }
   }
+private:
+  ei_solve_retval& operator=(const ei_solve_retval&);
 };
 
 /** Computes the polar decomposition of the matrix, as a product unitary x positive.

Eigen/src/Sparse/CompressedStorage.h

@@ -93,7 +93,7 @@ class CompressedStorage
 
     void append(const Scalar& v, int i)
     {
-      int id = m_size;
+      int id = static_cast<int>(m_size);
       resize(m_size+1, 1);
       m_values[id] = v;
       m_indices[id] = i;
@@ -135,7 +135,7 @@ class CompressedStorage
         else
           end = mid;
       }
-      return start;
+      return static_cast<int>(start);
     }
     
     /** \returns the stored value at index \a key

Eigen/src/Sparse/DynamicSparseMatrix.h

@@ -88,7 +88,7 @@ class DynamicSparseMatrix
     inline int rows() const { return IsRowMajor ? outerSize() : m_innerSize; }
     inline int cols() const { return IsRowMajor ? m_innerSize : outerSize(); }
     inline int innerSize() const { return m_innerSize; }
-    inline int outerSize() const { return m_data.size(); }
+    inline int outerSize() const { return static_cast<int>(m_data.size()); }
     inline int innerNonZeros(int j) const { return m_data[j].size(); }
 
     std::vector<CompressedStorage<Scalar> >& _data() { return m_data; }
@@ -128,7 +128,7 @@ class DynamicSparseMatrix
     {
       int res = 0;
       for (int j=0; j<outerSize(); ++j)
-        res += m_data[j].size();
+        res += static_cast<int>(m_data[j].size());
       return res;
     }
 
@@ -195,7 +195,7 @@ class DynamicSparseMatrix
       const int inner = IsRowMajor ? col : row;
 
       int startId = 0;
-      int id = m_data[outer].size() - 1;
+      int id = static_cast<int>(m_data[outer].size()) - 1;
       m_data[outer].resize(id+2,1);
 
       while ( (id >= startId) && (m_data[outer].index(id) > inner) )

Eigen/src/Sparse/RandomSetter.h

@@ -322,7 +322,7 @@ class RandomSetter
     {
       int nz = 0;
       for (int k=0; k<m_outerPackets; ++k)
-        nz += m_hashmaps[k].size();
+        nz += static_cast<int>(m_hashmaps[k].size());
       return nz;
     }
 

Eigen/src/Sparse/SparseBlock.h

@@ -220,6 +220,8 @@ class SparseInnerVectorSet<SparseMatrix<_Scalar, _Options>, Size>
         inline int col() const { return IsRowMajor ? this->index() : m_outer; }
       protected:
         int m_outer;
+      private:
+        InnerIterator& operator=(const InnerIterator&);
     };
 
     inline SparseInnerVectorSet(const MatrixType& matrix, int outerStart, int outerSize)

Eigen/src/Sparse/SparseCwise.h

@@ -156,6 +156,9 @@ template<typename ExpressionType> class SparseCwise
 
   protected:
     ExpressionTypeNested m_matrix;
+
+  private:
+    SparseCwise& operator=(const SparseCwise&);
 };
 
 template<typename Derived>

Eigen/src/Sparse/SparseCwiseBinaryOp.h

@@ -126,6 +126,9 @@ class SparseCwiseBinaryOp<BinaryOp,Lhs,Rhs>::InnerIterator
     EIGEN_STRONG_INLINE InnerIterator(const SparseCwiseBinaryOp& binOp, int outer)
       : Base(binOp,outer)
     {}
+
+  private:
+    InnerIterator& operator=(const InnerIterator&);
 };
 
 /***************************************************************************
@@ -197,6 +200,8 @@ class ei_sparse_cwise_binary_op_inner_iterator_selector<BinaryOp, Lhs, Rhs, Deri
     const BinaryOp& m_functor;
     Scalar m_value;
     int m_id;
+  private:
+    ei_sparse_cwise_binary_op_inner_iterator_selector& operator=(const ei_sparse_cwise_binary_op_inner_iterator_selector&);
 };
 
 // sparse - sparse  (product)
@@ -250,6 +255,8 @@ class ei_sparse_cwise_binary_op_inner_iterator_selector<ei_scalar_product_op<T>,
     LhsIterator m_lhsIter;
     RhsIterator m_rhsIter;
     const BinaryFunc& m_functor;
+  private:
+    ei_sparse_cwise_binary_op_inner_iterator_selector& operator=(const ei_sparse_cwise_binary_op_inner_iterator_selector&);
 };
 
 // sparse - dense  (product)

Eigen/src/Sparse/SparseCwiseUnaryOp.h

@@ -90,6 +90,9 @@ class SparseCwiseUnaryOp<UnaryOp,MatrixType>::InnerIterator
   protected:
     MatrixTypeIterator m_iter;
     const UnaryOp m_functor;
+
+  private:
+    InnerIterator& operator=(const InnerIterator&);
 };
 
 template<typename Derived>

Eigen/src/Sparse/SparseDiagonalProduct.h

@@ -133,6 +133,8 @@ class ei_sparse_diagonal_product_inner_iterator_selector
               const SparseDiagonalProductType& expr, int outer)
       : Base(expr.rhs().innerVector(outer) .cwise()* expr.lhs().diagonal(), 0)
     {}
+  private:
+    ei_sparse_diagonal_product_inner_iterator_selector& operator=(const ei_sparse_diagonal_product_inner_iterator_selector&);
 };
 
 template<typename Lhs, typename Rhs, typename SparseDiagonalProductType>
@@ -165,6 +167,8 @@ class ei_sparse_diagonal_product_inner_iterator_selector
               const SparseDiagonalProductType& expr, int outer)
       : Base(expr.lhs().innerVector(outer) .cwise()* expr.rhs().diagonal().transpose(), 0)
     {}
+  private:
+    ei_sparse_diagonal_product_inner_iterator_selector& operator=(const ei_sparse_diagonal_product_inner_iterator_selector&);
 };
 
 // SparseMatrixBase functions

Eigen/src/Sparse/SparseFlagged.h

@@ -64,6 +64,9 @@ template<typename ExpressionType, unsigned int Added, unsigned int Removed> clas
 
   protected:
     ExpressionTypeNested m_matrix;
+
+  private:
+    SparseFlagged& operator=(const SparseFlagged&);
 };
 
 template<typename ExpressionType, unsigned int Added, unsigned int Removed>
@@ -74,6 +77,9 @@ template<typename ExpressionType, unsigned int Added, unsigned int Removed>
     EIGEN_STRONG_INLINE InnerIterator(const SparseFlagged& xpr, int outer)
       : ExpressionType::InnerIterator(xpr.m_matrix, outer)
     {}
+
+  private:
+    InnerIterator& operator=(const InnerIterator&);
 };
 
 template<typename ExpressionType, unsigned int Added, unsigned int Removed>

Eigen/src/Sparse/SparseMatrix.h

@@ -138,7 +138,7 @@ class SparseMatrix
     }
 
     /** \returns the number of non zero coefficients */
-    inline int nonZeros() const  { return m_data.size(); }
+    inline int nonZeros() const  { return static_cast<int>(m_data.size()); }
 
     /** \deprecated use setZero() and reserve()
       * Initializes the filling process of \c *this.
@@ -236,7 +236,7 @@ class SparseMatrix
         // we start a new inner vector
         while (previousOuter>=0 && m_outerIndex[previousOuter]==0)
         {
-          m_outerIndex[previousOuter] = m_data.size();
+          m_outerIndex[previousOuter] = static_cast<int>(m_data.size());
           --previousOuter;
         }
         m_outerIndex[outer+1] = m_outerIndex[outer];
@@ -335,7 +335,7 @@ class SparseMatrix
       */
     inline void finalize()
     {
-      int size = m_data.size();
+      int size = static_cast<int>(m_data.size());
       int i = m_outerSize;
       // find the last filled column
       while (i>=0 && m_outerIndex[i]==0)
@@ -557,6 +557,9 @@ class SparseMatrix<Scalar,_Options>::InnerIterator
     int m_id;
     const int m_start;
     const int m_end;
+
+  private:
+    InnerIterator& operator=(const InnerIterator&);
 };
 
 #endif // EIGEN_SPARSEMATRIX_H

Eigen/src/Sparse/SparseTranspose.h

@@ -62,6 +62,9 @@ template<typename MatrixType> class SparseTranspose
 
   protected:
     const typename MatrixType::Nested m_matrix;
+
+  private:
+    SparseTranspose& operator=(const SparseTranspose&);
 };
 
 template<typename MatrixType> class SparseTranspose<MatrixType>::InnerIterator : public MatrixType::InnerIterator
@@ -74,6 +77,9 @@ template<typename MatrixType> class SparseTranspose<MatrixType>::InnerIterator :
     {}
     inline int row() const { return Base::col(); }
     inline int col() const { return Base::row(); }
+
+  private:
+    InnerIterator& operator=(const InnerIterator&);
 };
 
 template<typename MatrixType> class SparseTranspose<MatrixType>::ReverseInnerIterator : public MatrixType::ReverseInnerIterator

Eigen/src/Sparse/SparseTriangular.h

@@ -47,6 +47,9 @@ template<typename ExpressionType, int Mode> class SparseTriangular
     
   protected:
     ExpressionTypeNested m_matrix;
+
+  private:
+    SparseTriangular& operator=(const SparseTriangular&);
 };
 
 template<typename Derived>

Eigen/src/Sparse/SparseVector.h

@@ -125,7 +125,7 @@ class SparseVector
     inline void setZero() { m_data.clear(); }
 
     /** \returns the number of non zero coefficients */
-    inline int nonZeros() const  { return m_data.size(); }
+    inline int nonZeros() const  { return static_cast<int>(m_data.size()); }
 
     inline void startVec(int outer)
     {
@@ -374,13 +374,13 @@ class SparseVector<Scalar,_Options>::InnerIterator
 {
   public:
     InnerIterator(const SparseVector& vec, int outer=0)
-      : m_data(vec.m_data), m_id(0), m_end(m_data.size())
+      : m_data(vec.m_data), m_id(0), m_end(static_cast<int>(m_data.size()))
     {
       ei_assert(outer==0);
     }
 
     InnerIterator(const CompressedStorage<Scalar>& data)
-      : m_data(data), m_id(0), m_end(m_data.size())
+      : m_data(data), m_id(0), m_end(static_cast<int>(m_data.size()))
     {}
 
     template<unsigned int Added, unsigned int Removed>

Eigen/src/misc/Image.h

@@ -67,9 +67,12 @@ template<typename _DecompositionType> struct ei_image_retval_base
   }
 
   protected:
-  const DecompositionType& m_dec;
-  int m_rank, m_cols;
-  const MatrixType& m_originalMatrix;
+    const DecompositionType& m_dec;
+    int m_rank, m_cols;
+    const MatrixType& m_originalMatrix;
+
+  private:
+    ei_image_retval_base& operator=(const ei_image_retval_base&);
 };
 
 #define EIGEN_MAKE_IMAGE_HELPERS(DecompositionType) \

Eigen/src/misc/Kernel.h

@@ -67,8 +67,11 @@ template<typename _DecompositionType> struct ei_kernel_retval_base
   }
 
   protected:
-  const DecompositionType& m_dec;
-  int m_rank, m_cols;
+    const DecompositionType& m_dec;
+    int m_rank, m_cols;
+
+  private:
+    ei_kernel_retval_base& operator=(const ei_kernel_retval_base&);
 };
 
 #define EIGEN_MAKE_KERNEL_HELPERS(DecompositionType) \

Eigen/src/misc/Solve.h

@@ -61,8 +61,11 @@ template<typename _DecompositionType, typename Rhs> struct ei_solve_retval_base
   }
 
   protected:
-  const DecompositionType& m_dec;
-  const typename Rhs::Nested m_rhs;
+    const DecompositionType& m_dec;
+    const typename Rhs::Nested m_rhs;
+
+  private:
+    ei_solve_retval_base& operator=(const ei_solve_retval_base&);
 };
 
 #define EIGEN_MAKE_SOLVE_HELPERS(DecompositionType,Rhs) \