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fix compilation and segfault issues

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This commit is contained in:
Gael Guennebaud 2009-08-06 11:19:36 +02:00
parent b9b17ea5a5
commit fa55cf5ce7
2 changed files with 15 additions and 4 deletions
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6
Eigen/src/Geometry/Homogeneous.h
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@ -217,6 +217,9 @@ struct ei_homogeneous_left_product_impl<Homogeneous<MatrixType,Vertical>,Lhs>
: m_lhs(lhs), m_rhs(rhs)
{}
inline int rows() const { m_lhs.rows(); }
inline int cols() const { m_rhs.cols(); }
template<typename Dest> void evalTo(Dest& dst) const
{
// FIXME investigate how to allow lazy evaluation of this product when possible
@ -243,6 +246,9 @@ struct ei_homogeneous_right_product_impl<Homogeneous<MatrixType,Horizontal>,Rhs>
: m_lhs(lhs), m_rhs(rhs)
{}
inline int rows() const { m_lhs.rows(); }
inline int cols() const { m_rhs.cols(); }
template<typename Dest> void evalTo(Dest& dst) const
{
// FIXME investigate how to allow lazy evaluation of this product when possible

13
Eigen/src/QR/QR.h
View File

@ -120,6 +120,7 @@ void HouseholderQR<MatrixType>::compute(const MatrixType& matrix)
int rows = matrix.rows();
int cols = matrix.cols();
RealScalar eps2 = precision<RealScalar>()*precision<RealScalar>();
Matrix<Scalar,1,MatrixType::ColsAtCompileTime> temp(cols);
for (int k = 0; k < cols; ++k)
{
@ -161,8 +162,10 @@ void HouseholderQR<MatrixType>::compute(const MatrixType& matrix)
if (remainingCols>0)
{
m_qr.coeffRef(k,k) = Scalar(1);
m_qr.corner(BottomRight, remainingSize, remainingCols) -= ei_conj(h) * m_qr.col(k).end(remainingSize)
* (m_qr.col(k).end(remainingSize).adjoint() * m_qr.corner(BottomRight, remainingSize, remainingCols));
temp.end(remainingCols) = (m_qr.col(k).end(remainingSize).adjoint()
* m_qr.corner(BottomRight, remainingSize, remainingCols)).lazy();
m_qr.corner(BottomRight, remainingSize, remainingCols) -= (ei_conj(h) * m_qr.col(k).end(remainingSize)
* temp.end(remainingCols)).lazy();
m_qr.coeffRef(k,k) = beta;
}
}
@ -207,6 +210,7 @@ MatrixType HouseholderQR<MatrixType>::matrixQ() const
int rows = m_qr.rows();
int cols = m_qr.cols();
MatrixType res = MatrixType::Identity(rows, cols);
Matrix<Scalar,1,MatrixType::ColsAtCompileTime> temp(cols);
for (int k = cols-1; k >= 0; k--)
{
// to make easier the computation of the transformation, let's temporarily
@ -214,8 +218,9 @@ MatrixType HouseholderQR<MatrixType>::matrixQ() const
Scalar beta = m_qr.coeff(k,k);
m_qr.const_cast_derived().coeffRef(k,k) = 1;
int endLength = rows-k;
res.corner(BottomRight,endLength, cols-k) -= ((m_hCoeffs.coeff(k) * m_qr.col(k).end(endLength))
* (m_qr.col(k).end(endLength).adjoint() * res.corner(BottomRight,endLength, cols-k)).lazy()).lazy();
temp.end(cols-k) = (m_qr.col(k).end(endLength).adjoint() * res.corner(BottomRight,endLength, cols-k)).lazy();
res.corner(BottomRight,endLength, cols-k) -= ((m_hCoeffs.coeff(k) * m_qr.col(k).end(endLength)) * temp.end(cols-k)).lazy();
m_qr.const_cast_derived().coeffRef(k,k) = beta;
}
return res;