diff options
Diffstat (limited to 'unsupported/Eigen/src/Polynomials/Companion.h')
| -rw-r--r-- | unsupported/Eigen/src/Polynomials/Companion.h | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/unsupported/Eigen/src/Polynomials/Companion.h b/unsupported/Eigen/src/Polynomials/Companion.h index 7c9e9c518..5a3bacc20 100644 --- a/unsupported/Eigen/src/Polynomials/Companion.h +++ b/unsupported/Eigen/src/Polynomials/Companion.h @@ -68,8 +68,10 @@ class ei_companion typedef Matrix< Scalar, Deg_1, Deg_1 > BottomLeftBlock; typedef Matrix< Scalar, 1, Deg_1 > LeftBlockFirstRow; + typedef DenseIndex Index; + public: - EIGEN_STRONG_INLINE const _Scalar operator()( int row, int col ) const + EIGEN_STRONG_INLINE const _Scalar operator()(Index row, Index col ) const { if( m_bl_diag.rows() > col ) { @@ -83,7 +85,7 @@ class ei_companion template<typename VectorType> void setPolynomial( const VectorType& poly ) { - const int deg = poly.size()-1; + const Index deg = poly.size()-1; m_monic = -1/poly[deg] * poly.head(deg); //m_bl_diag.setIdentity( deg-1 ); m_bl_diag.setOnes(deg-1); @@ -96,8 +98,8 @@ class ei_companion public: DenseCompanionMatrixType denseMatrix() const { - const int deg = m_monic.size(); - const int deg_1 = deg-1; + const Index deg = m_monic.size(); + const Index deg_1 = deg-1; DenseCompanionMatrixType companion(deg,deg); companion << ( LeftBlock(deg,deg_1) @@ -220,8 +222,8 @@ template< typename _Scalar, int _Deg > void ei_companion<_Scalar,_Deg>::balance() { EIGEN_STATIC_ASSERT( 1 < Deg, YOU_MADE_A_PROGRAMMING_MISTAKE ); - const int deg = m_monic.size(); - const int deg_1 = deg-1; + const Index deg = m_monic.size(); + const Index deg_1 = deg-1; bool hasConverged=false; while( !hasConverged ) @@ -244,7 +246,7 @@ void ei_companion<_Scalar,_Deg>::balance() //Middle rows and columns excluding the diagonal //============================================== - for( int i=1; i<deg_1; ++i ) + for( Index i=1; i<deg_1; ++i ) { // column norm, excluding the diagonal colNorm = ei_abs(m_bl_diag[i]); @@ -263,7 +265,7 @@ void ei_companion<_Scalar,_Deg>::balance() //Last row, last column excluding the diagonal //============================================ - const int ebl = m_bl_diag.size()-1; + const Index ebl = m_bl_diag.size()-1; VectorBlock<RightColumn,Deg_1> headMonic( m_monic, 0, deg_1 ); colNorm = headMonic.array().abs().sum(); rowNorm = ei_abs( m_bl_diag[ebl] ); |