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Introduce a AliasFreeProduct option for Permutations and Transpositions

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Gael Guennebaud
2015-06-19 15:38:19 +02:00
parent 3f6aa4cd5d
commit 0c8b0e007b
6 changed files with 46 additions and 35 deletions
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16
Eigen/src/Core/PermutationMatrix.h
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@@ -541,11 +541,11 @@ class PermutationWrapper : public PermutationBase<PermutationWrapper<_IndicesTyp
*/
template<typename MatrixDerived, typename PermutationDerived>
EIGEN_DEVICE_FUNC
const Product<MatrixDerived, PermutationDerived, DefaultProduct>
const Product<MatrixDerived, PermutationDerived, AliasFreeProduct>
operator*(const MatrixBase<MatrixDerived> &matrix,
const PermutationBase<PermutationDerived>& permutation)
{
return Product<MatrixDerived, PermutationDerived, DefaultProduct>
return Product<MatrixDerived, PermutationDerived, AliasFreeProduct>
(matrix.derived(), permutation.derived());
}
@@ -553,11 +553,11 @@ operator*(const MatrixBase<MatrixDerived> &matrix,
*/
template<typename PermutationDerived, typename MatrixDerived>
EIGEN_DEVICE_FUNC
const Product<PermutationDerived, MatrixDerived, DefaultProduct>
const Product<PermutationDerived, MatrixDerived, AliasFreeProduct>
operator*(const PermutationBase<PermutationDerived> &permutation,
const MatrixBase<MatrixDerived>& matrix)
{
return Product<PermutationDerived, MatrixDerived, DefaultProduct>
return Product<PermutationDerived, MatrixDerived, AliasFreeProduct>
(permutation.derived(), matrix.derived());
}
@@ -620,19 +620,19 @@ class Transpose<PermutationBase<Derived> >
/** \returns the matrix with the inverse permutation applied to the columns.
*/
template<typename OtherDerived> friend
const Product<OtherDerived, Transpose, DefaultProduct>
const Product<OtherDerived, Transpose, AliasFreeProduct>
operator*(const MatrixBase<OtherDerived>& matrix, const Transpose& trPerm)
{
return Product<OtherDerived, Transpose, DefaultProduct>(matrix.derived(), trPerm.derived());
return Product<OtherDerived, Transpose, AliasFreeProduct>(matrix.derived(), trPerm.derived());
}
/** \returns the matrix with the inverse permutation applied to the rows.
*/
template<typename OtherDerived>
const Product<Transpose, OtherDerived, DefaultProduct>
const Product<Transpose, OtherDerived, AliasFreeProduct>
operator*(const MatrixBase<OtherDerived>& matrix) const
{
return Product<Transpose, OtherDerived, DefaultProduct>(*this, matrix.derived());
return Product<Transpose, OtherDerived, AliasFreeProduct>(*this, matrix.derived());
}
const PermutationType& nestedExpression() const { return m_permutation; }