treeset

package
v0.16.3 Latest Latest
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Published: Aug 1, 2022 License: BSD-2-Clause, ISC Imports: 7 Imported by: 0

Documentation

Overview

Package treeset implements a tree backed by a red-black tree.

Structure is not thread safe.

Reference: http://en.wikipedia.org/wiki/Set_%28abstract_data_type%29

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

This section is empty.

Types

type OrderedIterator added in v0.16.2

type OrderedIterator[T comparable] struct {
	*redblacktree.OrderedIterator[T, struct{}]
	// contains filtered or unexported fields
}

Iterator holding the iterator's state

func (*OrderedIterator[T]) DistanceTo added in v0.16.2

func (it *OrderedIterator[T]) DistanceTo(other ds.OrderedIterator) int

DistanceTo implements ds.ReadWriteOrdCompBidRandCollIterator If other is of type IndexedIterator, IndexedIterator.Index() will be used, possibly executing in O(1)

func (*OrderedIterator[T]) Get added in v0.16.2

func (it *OrderedIterator[T]) Get() (value T, found bool)

PERF: These methods are inefficient, but the API is limiting here

func (*OrderedIterator[T]) GetAt added in v0.16.2

func (it *OrderedIterator[T]) GetAt(i int) (value T, found bool)

func (*OrderedIterator[T]) Index added in v0.16.2

func (it *OrderedIterator[T]) Index() (value int, found bool)

func (*OrderedIterator[T]) IsAfter added in v0.16.2

func (it *OrderedIterator[T]) IsAfter(other ds.OrderedIterator) bool

IsAfter implements ds.ReadWriteOrdCompBidRandCollIterator

func (*OrderedIterator[T]) IsBefore added in v0.16.2

func (it *OrderedIterator[T]) IsBefore(other ds.OrderedIterator) bool

IsBefore implements ds.ReadWriteOrdCompBidRandCollIterator

func (*OrderedIterator[T]) IsEqual added in v0.16.2

func (it *OrderedIterator[T]) IsEqual(other ds.ComparableIterator) bool

IsEqual implements ds.ReadWriteOrdCompBidRandCollIterator

func (*OrderedIterator[T]) MoveTo added in v0.16.2

func (it *OrderedIterator[T]) MoveTo(i int) bool

func (*OrderedIterator[T]) Set added in v0.16.2

func (it *OrderedIterator[T]) Set(value T) bool

func (*OrderedIterator[T]) SetAt added in v0.16.2

func (it *OrderedIterator[T]) SetAt(i int, value T) bool

type Set

type Set[T comparable] struct {
	// contains filtered or unexported fields
}

Set holds elements in a red-black tree

func New added in v0.16.2

func New[T comparable](comparator utils.Comparator[T], values ...T) *Set[T]

New instantiates a new empty set with the custom comparator.

func NewFromIterator added in v0.16.2

func NewFromIterator[T comparable](comparator utils.Comparator[T], begin ds.ReadCompForIndexIterator[int, T]) *Set[T]

NewFromIterator instantiates a new set containing the elements provided by the passed iterator.

func NewFromIterators added in v0.16.2

func NewFromIterators[T comparable](comparator utils.Comparator[T], begin ds.ReadCompForIndexIterator[int, T], end ds.CompIndexIterator[int]) *Set[T]

NewFromIterators instantiates a new set containing the elements provided by first, until it is equal to end. end is a sentinel and not included.

func NewFromSlice added in v0.16.2

func NewFromSlice[T comparable](comparator utils.Comparator[T], slice []T) *Set[T]

NewFromMap instantiates a new set from the provided slice.

func (*Set[T]) Add

func (set *Set[T]) Add(items ...T)

Add adds the items (one or more) to the set.

func (*Set[T]) Clear

func (set *Set[T]) Clear()

Clear clears all values in the set.

func (*Set[T]) Contains

func (set *Set[T]) Contains(items ...T) bool

Contains checks weather items (one or more) are present in the set. All items have to be present in the set for the method to return true. Returns true if no arguments are passed at all, i.e. set is always superset of empty set.

func (*Set[T]) FromJSON

func (set *Set[T]) FromJSON(data []byte) error

FromJSON populates the set from the input JSON representation.

func (*Set[T]) GetValues added in v0.3.0

func (set *Set[T]) GetValues() []T

Values returns all items in the set.

func (*Set[T]) IsEmpty added in v0.3.0

func (set *Set[T]) IsEmpty() bool

Empty returns true if set does not contain any elements.

func (*Set[T]) MakeDifferenceWith added in v0.3.0

func (set *Set[T]) MakeDifferenceWith(other sets.Set[T]) sets.Set[T]

Difference returns the difference between two sets. The two sets should have the same comparators, otherwise the result is empty set. The new set consists of all elements that are in "set" but not in "other". Ref: https://proofwiki.org/wiki/Definition:Set_Difference

func (*Set[T]) MakeIntersectionWith added in v0.3.0

func (set *Set[T]) MakeIntersectionWith(other sets.Set[T]) sets.Set[T]

Intersection returns the intersection between two sets. The new set consists of all elements that are both in "set" and "other". The two sets should have the same comparators, otherwise the result is empty set. Ref: https://en.wikipedia.org/wiki/Intersection_(set_theory)

func (*Set[T]) MakeUnionWith added in v0.3.0

func (set *Set[T]) MakeUnionWith(other sets.Set[T]) sets.Set[T]

Union returns the union of two sets. The new set consists of all elements that are in "set" or "other" (possibly both). The two sets should have the same comparators, otherwise the result is empty set. Ref: https://en.wikipedia.org/wiki/Union_(set_theory)

func (*Set[T]) MarshalJSON

func (set *Set[T]) MarshalJSON() ([]byte, error)

MarshalJSON @implements json.Marshaler

func (*Set[T]) NewOrderedIterator added in v0.16.2

func (set *Set[T]) NewOrderedIterator(list_ *Set[T], index int) *OrderedIterator[T]

NewIterator returns a stateful iterator whose values can be fetched by an index.

func (*Set[T]) OrderedBegin added in v0.16.2

func (s *Set[T]) OrderedBegin(comparator utils.Comparator[T]) ds.ReadWriteOrdCompBidRandCollIterator[int, T]

Begin returns an initialized, reversed iterator, which points to one element before it's first. Unless Next() is called, the iterator is in an invalid state.

func (*Set[T]) OrderedEnd added in v0.16.2

func (s *Set[T]) OrderedEnd(comparator utils.Comparator[T]) ds.ReadWriteOrdCompBidRandCollIterator[int, T]

End returns an initialized,reversed iterator, which points to one element afrer it's last. Unless Previous() is called, the iterator is in an invalid state.

func (*Set[T]) OrderedFirst added in v0.16.2

func (s *Set[T]) OrderedFirst(comparator utils.Comparator[T]) ds.ReadWriteOrdCompBidRandCollIterator[int, T]

First returns an initialized, reversed iterator, which points to it's first element.

func (*Set[T]) OrderedLast added in v0.16.2

func (s *Set[T]) OrderedLast(comparator utils.Comparator[T]) ds.ReadWriteOrdCompBidRandCollIterator[int, T]

Last returns an initialized, reversed iterator, which points to it's last element.

func (*Set[T]) Remove

func (set *Set[T]) Remove(_ utils.Comparator[T], items ...T)

Remove removes the items (one or more) from the set.

func (*Set[T]) Size

func (set *Set[T]) Size() int

Size returns number of elements within the set.

func (*Set[T]) ToJSON

func (set *Set[T]) ToJSON() ([]byte, error)

ToJSON outputs the JSON representation of the set.

func (*Set[T]) ToString added in v0.3.0

func (set *Set[T]) ToString() string

String returns a string representation of container

func (*Set[T]) UnmarshalJSON

func (set *Set[T]) UnmarshalJSON(bytes []byte) error

UnmarshalJSON @implements json.Unmarshaler

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