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Introduce a AliasFreeProduct option for Permutations and Transpositions

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This commit is contained in:
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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8
Eigen/src/SparseCore/SparsePermutation.h
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@@ -90,10 +90,10 @@ template <int ProductTag> struct product_promote_storage_type<PermutationStorage
// whereas it should be correctly handled by traits<Product<> >::PlainObject
template<typename Lhs, typename Rhs, int ProductTag>
struct product_evaluator<Product<Lhs, Rhs, DefaultProduct>, ProductTag, PermutationShape, SparseShape, typename traits<Lhs>::Scalar, typename traits<Rhs>::Scalar>
struct product_evaluator<Product<Lhs, Rhs, AliasFreeProduct>, ProductTag, PermutationShape, SparseShape, typename traits<Lhs>::Scalar, typename traits<Rhs>::Scalar>
: public evaluator<typename permutation_matrix_product<Rhs,OnTheRight,false,SparseShape>::ReturnType>::type
{
typedef Product<Lhs, Rhs, DefaultProduct> XprType;
typedef Product<Lhs, Rhs, AliasFreeProduct> XprType;
typedef typename permutation_matrix_product<Rhs,OnTheRight,false,SparseShape>::ReturnType PlainObject;
typedef typename evaluator<PlainObject>::type Base;
@@ -109,10 +109,10 @@ protected:
};
template<typename Lhs, typename Rhs, int ProductTag>
struct product_evaluator<Product<Lhs, Rhs, DefaultProduct>, ProductTag, SparseShape, PermutationShape, typename traits<Lhs>::Scalar, typename traits<Rhs>::Scalar>
struct product_evaluator<Product<Lhs, Rhs, AliasFreeProduct>, ProductTag, SparseShape, PermutationShape, typename traits<Lhs>::Scalar, typename traits<Rhs>::Scalar>
: public evaluator<typename permutation_matrix_product<Lhs,OnTheRight,false,SparseShape>::ReturnType>::type
{
typedef Product<Lhs, Rhs, DefaultProduct> XprType;
typedef Product<Lhs, Rhs, AliasFreeProduct> XprType;
typedef typename permutation_matrix_product<Lhs,OnTheRight,false,SparseShape>::ReturnType PlainObject;
typedef typename evaluator<PlainObject>::type Base;