cadabra::Adjform Class Reference

Description

Representation of the index structure of a tensor monomial, using a storage format which resembles an adjacency matrix.

The structure is stored as a vector of integers. Negative integers denote free indices. Positive indices denote a contraction with an index at the indicated position.

Example:

A_{m n} B_{p n} -> -1 3 -2 1 0 1 2 3

The tensor names themselves ('A' and 'B' above) are not stored.

#include <Adjform.hh>

Public Types
using	value_type = short
	The maximal number of index slots is set by value_type: for a short, the maximal number of slots is 127.
using	size_type = value_type
using	difference_type = value_type
using	array_type = std::vector< value_type >
using	const_reference = array_type::const_reference
using	const_iterator = array_type::const_iterator

Public Member Functions
	Adjform ()
template<typename IndexIterator >
	Adjform (IndexIterator beg, IndexIterator end, IndexMap &index_map, const Kernel &kernel)
template<typename ValueIterator >
	Adjform (ValueIterator beg, ValueIterator end, bool push_as_coordinates)
const_iterator	begin () const
const_iterator	end () const
size_type	index_of (value_type index, size_type offset=0) const
bool	operator< (const Adjform &other) const
bool	operator== (const Adjform &other) const
bool	operator!= (const Adjform &other) const
const_reference	operator[] (size_type idx) const
size_type	size () const
size_type	max_size () const
bool	empty () const
bool	is_free_index (size_type pos) const
bool	is_dummy_index (size_type pos) const
size_type	n_free_indices () const
size_type	n_dummy_indices () const
bool	resolve_dummy (value_type value)
void	push_index (value_type value)
void	push_indices (const Adjform &other)
void	push_coordinate (value_type value)
void	push_coordinates (const Adjform &other)
void	push (Ex::iterator iterator, IndexMap &index_map, const Kernel &kernel)
void	swap (size_type a, size_type b)
void	rotate (size_type n)
void	sort ()
uint64_t	to_lehmer_code () const
uint64_t	max_lehmer_code () const
std::string	to_string () const

Private Attributes
array_type	data

Member Typedef Documentation

array_type

using cadabra::Adjform::array_type = std::vector<value_type>

const_iterator

using cadabra::Adjform::const_iterator = array_type::const_iterator

const_reference

using cadabra::Adjform::const_reference = array_type::const_reference

difference_type

using cadabra::Adjform::difference_type = value_type

size_type

using cadabra::Adjform::size_type = value_type

value_type

using cadabra::Adjform::value_type = short

The maximal number of index slots is set by value_type: for a short, the maximal number of slots is 127.

Constructor & Destructor Documentation

Adjform() [1/3]

cadabra::Adjform::Adjform

(

)

Adjform() [2/3]

template<typename IndexIterator >

cadabra::Adjform::Adjform	(	IndexIterator	beg,
		IndexIterator	end,
		IndexMap &	index_map,
		const Kernel &	kernel
	)

Adjform() [3/3]

template<typename ValueIterator >

cadabra::Adjform::Adjform	(	ValueIterator	beg,
		ValueIterator	end,
		bool	push_as_coordinates
	)

Member Function Documentation

begin()

Adjform::const_iterator cadabra::Adjform::begin

(

)

const

empty()

bool cadabra::Adjform::empty

(

)

const

end()

Adjform::const_iterator cadabra::Adjform::end

(

)

const

index_of()

Adjform::size_type cadabra::Adjform::index_of	(	value_type	index,
		size_type	offset = 0
	)		const

is_dummy_index()

bool cadabra::Adjform::is_dummy_index

(

Adjform::size_type

pos

)

const

is_free_index()

bool cadabra::Adjform::is_free_index

(

Adjform::size_type

pos

)

const

max_lehmer_code()

uint64_t cadabra::Adjform::max_lehmer_code

(

)

const

max_size()

Adjform::size_type cadabra::Adjform::max_size

(

)

const

n_dummy_indices()

Adjform::size_type cadabra::Adjform::n_dummy_indices

(

)

const

n_free_indices()

Adjform::size_type cadabra::Adjform::n_free_indices

(

)

const

operator!=()

bool cadabra::Adjform::operator!=

(

const Adjform &

other

)

const

operator<()

bool cadabra::Adjform::operator<

(

const Adjform &

other

)

const

operator==()

bool cadabra::Adjform::operator==

(

const Adjform &

other

)

const

operator[]()

Adjform::const_reference cadabra::Adjform::operator[]

(

Adjform::size_type

idx

)

const

push()

void cadabra::Adjform::push	(	Ex::iterator	iterator,
		IndexMap &	index_map,
		const Kernel &	kernel
	)

push_coordinate()

void cadabra::Adjform::push_coordinate

(

value_type

value

)

push_coordinates()

void cadabra::Adjform::push_coordinates

(

const Adjform &

other

)

push_index()

void cadabra::Adjform::push_index

(

value_type

value

)

push_indices()

void cadabra::Adjform::push_indices

(

const Adjform &

other

)

resolve_dummy()

bool cadabra::Adjform::resolve_dummy

(

value_type

value

)

rotate()

void cadabra::Adjform::rotate

(

size_type

n

)

size()

Adjform::size_type cadabra::Adjform::size

(

)

const

sort()

void cadabra::Adjform::sort

(

)

swap()

void cadabra::Adjform::swap	(	size_type	a,
		size_type	b
	)

to_lehmer_code()

uint64_t cadabra::Adjform::to_lehmer_code

(

)

const

to_string()

std::string cadabra::Adjform::to_string

(

)

const

Member Data Documentation

data

array_type cadabra::Adjform::data

private

---

The documentation for this class was generated from the following files:

• core/Adjform.hh
• core/Adjform.cc