occ::qm::cc::detail Namespace Reference

Functions
void	permute (const double *in, const Eigen::Index *dims, int rank, const int *perm, double *out)
	out = in with out.dim(k) = in.dim(perm[k]); column-major, rank <= 6
void	einsum_shape (std::string_view spec, const Eigen::Index *da, int ra, const Eigen::Index *db, int rb, Eigen::Index *dc, int rc)
	the result's dimensions for spec on operands of the given shapes
void	einsum_contract (std::string_view spec, const double *a, const Eigen::Index *da, int ra, const double *b, const Eigen::Index *db, int rb, double *out, int rc)
	the contraction itself, into out (sized from einsum_shape)
template<typename E >
constexpr int	rank_of ()
template<typename E >
decltype(auto)	evaluated (const E &e)
template<int R>
std::array< Eigen::Index, R >	dims_of (const Eigen::Tensor< double, R > &t)

Function Documentation

dims_of()

template<int R>

std::array< Eigen::Index, R > occ::qm::cc::detail::dims_of

(

const Eigen::Tensor< double, R > &

t

)

einsum_contract()

void occ::qm::cc::detail::einsum_contract	(	std::string_view	spec,
		const double *	a,
		const Eigen::Index *	da,
		int	ra,
		const double *	b,
		const Eigen::Index *	db,
		int	rb,
		double *	out,
		int	rc
	)

the contraction itself, into out (sized from einsum_shape)

einsum_shape()

void occ::qm::cc::detail::einsum_shape	(	std::string_view	spec,
		const Eigen::Index *	da,
		int	ra,
		const Eigen::Index *	db,
		int	rb,
		Eigen::Index *	dc,
		int	rc
	)

the result's dimensions for spec on operands of the given shapes

evaluated()

template<typename E >

decltype(auto) occ::qm::cc::detail::evaluated

(

const E &

e

)

permute()

void occ::qm::cc::detail::permute	(	const double *	in,
		const Eigen::Index *	dims,
		int	rank,
		const int *	perm,
		double *	out
	)

out = in with out.dim(k) = in.dim(perm[k]); column-major, rank <= 6

rank_of()

template<typename E >

constexpr int occ::qm::cc::detail::rank_of ( )

constexpr