const-qualify template parameters representing const arguments to expressions.

needed to fix docs compile issue.

Eigen/src/Core/DiagonalMatrix.h

@@ -71,7 +71,7 @@ class DiagonalBase : public EigenBase<Derived>
     const DiagonalProduct<MatrixDerived, Derived, OnTheLeft>
     operator*(const MatrixBase<MatrixDerived> &matrix) const;
 
-    inline const DiagonalWrapper<CwiseUnaryOp<internal::scalar_inverse_op<Scalar>, DiagonalVectorType> >
+    inline const DiagonalWrapper<CwiseUnaryOp<internal::scalar_inverse_op<Scalar>, const DiagonalVectorType> >
     inverse() const
     {
       return diagonal().cwiseInverse();

Eigen/src/Core/TriangularMatrix.h

@@ -755,7 +755,7 @@ MatrixBase<Derived>::triangularView() const
 /** \returns true if *this is approximately equal to an upper triangular matrix,
   *          within the precision given by \a prec.
   *
-  * \sa isLowerTriangular(), extract(), part(), marked()
+  * \sa isLowerTriangular()
   */
 template<typename Derived>
 bool MatrixBase<Derived>::isUpperTriangular(RealScalar prec) const
@@ -780,7 +780,7 @@ bool MatrixBase<Derived>::isUpperTriangular(RealScalar prec) const
 /** \returns true if *this is approximately equal to a lower triangular matrix,
   *          within the precision given by \a prec.
   *
-  * \sa isUpperTriangular(), extract(), part(), marked()
+  * \sa isUpperTriangular()
   */
 template<typename Derived>
 bool MatrixBase<Derived>::isLowerTriangular(RealScalar prec) const

Eigen/src/Core/VectorwiseOp.h

@@ -447,8 +447,8 @@ template<typename ExpressionType, int Direction> class VectorwiseOp
     /** Returns the expression of the sum of the vector \a other to each subvector of \c *this */
     template<typename OtherDerived> EIGEN_STRONG_INLINE
     CwiseBinaryOp<internal::scalar_sum_op<Scalar>,
-                  ExpressionTypeNestedCleaned,
-                  typename ExtendedType<OtherDerived>::Type>
+                  const ExpressionTypeNestedCleaned,
+                  const typename ExtendedType<OtherDerived>::Type>
     operator+(const DenseBase<OtherDerived>& other) const
     {
       EIGEN_STATIC_ASSERT_VECTOR_ONLY(OtherDerived);
@@ -458,8 +458,8 @@ template<typename ExpressionType, int Direction> class VectorwiseOp
     /** Returns the expression of the difference between each subvector of \c *this and the vector \a other */
     template<typename OtherDerived>
     CwiseBinaryOp<internal::scalar_difference_op<Scalar>,
-                  ExpressionTypeNestedCleaned,
-                  typename ExtendedType<OtherDerived>::Type>
+                  const ExpressionTypeNestedCleaned,
+                  const typename ExtendedType<OtherDerived>::Type>
     operator-(const DenseBase<OtherDerived>& other) const
     {
       EIGEN_STATIC_ASSERT_VECTOR_ONLY(OtherDerived);

Eigen/src/Core/util/Macros.h

@@ -342,10 +342,10 @@
 
 #define EIGEN_MAKE_CWISE_BINARY_OP(METHOD,FUNCTOR) \
   template<typename OtherDerived> \
-  EIGEN_STRONG_INLINE const CwiseBinaryOp<FUNCTOR<Scalar>, Derived, OtherDerived> \
+  EIGEN_STRONG_INLINE const CwiseBinaryOp<FUNCTOR<Scalar>, const Derived, const OtherDerived> \
   METHOD(const EIGEN_CURRENT_STORAGE_BASE_CLASS<OtherDerived> &other) const \
   { \
-    return CwiseBinaryOp<FUNCTOR<Scalar>, Derived, OtherDerived>(derived(), other.derived()); \
+    return CwiseBinaryOp<FUNCTOR<Scalar>, const Derived, const OtherDerived>(derived(), other.derived()); \
   }
 
 // the expression type of a cwise product
@@ -355,8 +355,8 @@
           typename internal::traits<LHS>::Scalar, \
           typename internal::traits<RHS>::Scalar \
       >, \
-      LHS, \
-      RHS \
+      const LHS, \
+      const RHS \
     >
 
 #endif // EIGEN_MACROS_H