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Clean a bit the implementation of inverse permutations

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This commit is contained in:
Gael Guennebaud
2015-10-08 18:36:39 +02:00
parent 8d00a953af
commit d866279364
5 changed files with 50 additions and 75 deletions
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17
Eigen/src/SparseCore/SparsePermutation.h
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@@ -144,23 +144,22 @@ operator*( const PermutationBase<PermDerived>& perm, const SparseMatrixBase<Spar
{ return Product<PermDerived, SparseDerived>(perm.derived(), matrix.derived()); }
// TODO, the following specializations should not be needed as Transpose<Permutation*> should be a PermutationBase.
/** \returns the matrix with the inverse permutation applied to the columns.
*/
template<typename SparseDerived, typename PermDerived>
inline const Product<SparseDerived, Transpose<PermutationBase<PermDerived> > >
operator*(const SparseMatrixBase<SparseDerived>& matrix, const Transpose<PermutationBase<PermDerived> >& tperm)
template<typename SparseDerived, typename PermutationType>
inline const Product<SparseDerived, Inverse<PermutationType > >
operator*(const SparseMatrixBase<SparseDerived>& matrix, const InverseImpl<PermutationType, PermutationStorage>& tperm)
{
return Product<SparseDerived, Transpose<PermutationBase<PermDerived> > >(matrix.derived(), tperm);
return Product<SparseDerived, Inverse<PermutationType> >(matrix.derived(), tperm.derived());
}
/** \returns the matrix with the inverse permutation applied to the rows.
*/
template<typename SparseDerived, typename PermDerived>
inline const Product<Transpose<PermutationBase<PermDerived> >, SparseDerived>
operator*(const Transpose<PermutationBase<PermDerived> >& tperm, const SparseMatrixBase<SparseDerived>& matrix)
template<typename SparseDerived, typename PermutationType>
inline const Product<Inverse<PermutationType>, SparseDerived>
operator*(const InverseImpl<PermutationType,PermutationStorage>& tperm, const SparseMatrixBase<SparseDerived>& matrix)
{
return Product<Transpose<PermutationBase<PermDerived> >, SparseDerived>(tperm, matrix.derived());
return Product<Inverse<PermutationType>, SparseDerived>(tperm.derived(), matrix.derived());
}
} // end namespace Eigen