Added method getLength to SparseRow

src/TNL/Matrices/SparseRow.h

@@ -49,6 +49,9 @@ class SparseRow
       __cuda_callable__
       const Real& getElementValue( const Index& elementIndex ) const;
 
+      __cuda_callable__
+      Index getLength() const;
+
       void print( std::ostream& str ) const;
 
    protected:

src/TNL/Matrices/SparseRow_impl.h

@@ -98,6 +98,15 @@ getElementValue( const Index& elementIndex ) const
    return this->values[ elementIndex * step ];
 }
 
+template< typename Real, typename Index >
+__cuda_callable__
+Index
+SparseRow< Real, Index >::
+getLength() const
+{
+   return length;
+}
+
 template< typename Real, typename Index >
 void
 SparseRow< Real, Index >::