Uint64List class

A fixed-length list of 64-bit unsigned integers that is viewable as a TypedData.

For long lists, this implementation can be considerably more space- and time-efficient than the default List implementation.

Integers stored in the list are truncated to their low 64 bits, interpreted as an unsigned 64-bit integer with values in the range 0 to 18446744073709551615.

It is a compile-time error for a class to attempt to extend or implement Uint64List.

Implemented types
Implementers
Available Extensions

Constructors

Uint64List(int length)
Creates a Uint64List of the specified length (in elements), all of whose elements are initially zero.
factory
Uint64List.fromList(List<int> elements)
Creates a Uint64List with the same length as the elements list and copies over the elements.
factory
Uint64List.sublistView(TypedData data, [int start = 0, int? end])
Creates a Uint64List view on a range of elements of data.
factory
Uint64List.view(ByteBuffer buffer, [int offsetInBytes = 0, int? length])
Creates an Uint64List view of the specified region in the specified byte buffer.
factory

Properties

buffer → ByteBuffer
Returns the byte buffer associated with this object.
read-onlyinherited
elementSizeInBytes → int
Returns the number of bytes in the representation of each element in this list.
read-onlyinherited
first ↔ int
The first element.
read / writeinherited
hashCode → int
The hash code for this object.
read-onlyinherited
isEmpty → bool
Whether this collection has no elements.
read-onlyinherited
isNotEmpty → bool
Whether this collection has at least one element.
read-onlyinherited
iterator → Iterator<int>
A new Iterator that allows iterating the elements of this Iterable.
read-onlyinherited
last ↔ int
The last element.
read / writeinherited
length ↔ int
The number of objects in this list.
read / writeinherited
lengthInBytes → int
Returns the length of this view, in bytes.
read-onlyinherited
offsetInBytes → int
Returns the offset in bytes into the underlying byte buffer of this view.
read-onlyinherited
reversed → Iterable<int>
An Iterable of the objects in this list in reverse order.
read-onlyinherited
runtimeType → Type
A representation of the runtime type of the object.
read-onlyinherited
single → int
Checks that this iterable has only one element, and returns that element.
read-onlyinherited

Methods

add(int value) → void
Adds value to the end of this list, extending the length by one.
inherited
addAll(Iterable<int> iterable) → void
Appends all objects of iterable to the end of this list.
inherited
any(bool test(int element)) → bool
Checks whether any element of this iterable satisfies test.
inherited
asMap() → Map<int, int>
An unmodifiable Map view of this list.
inherited
cast<R>() → List<R>
Returns a view of this list as a list of R instances.
inherited
clear() → void
Removes all objects from this list; the length of the list becomes zero.
inherited
contains(Object? element) → bool
Whether the collection contains an element equal to element.
inherited
elementAt(int index) → int
Returns the indexth element.
inherited
every(bool test(int element)) → bool
Checks whether every element of this iterable satisfies test.
inherited
expand<T>(Iterable<T> toElements(int element)) → Iterable<T>
Expands each element of this Iterable into zero or more elements.
inherited
fillRange(int start, int end, [int? fillValue]) → void
Overwrites a range of elements with fillValue.
inherited
firstWhere(bool test(int element), {int orElse()?}) → int
The first element that satisfies the given predicate test.
inherited
fold<T>(T initialValue, T combine(T previousValue, int element)) → T
Reduces a collection to a single value by iteratively combining each element of the collection with an existing value
inherited
followedBy(Iterable<int> other) → Iterable<int>
Creates the lazy concatenation of this iterable and other.
inherited
forEach(void action(int element)) → void
Invokes action on each element of this iterable in iteration order.
inherited
getRange(int start, int end) → Iterable<int>
Creates an Iterable that iterates over a range of elements.
inherited
indexOf(int element, [int start = 0]) → int
The first index of element in this list.
inherited
indexWhere(bool test(int element), [int start = 0]) → int
The first index in the list that satisfies the provided test.
inherited
insert(int index, int element) → void
Inserts element at position index in this list.
inherited
insertAll(int index, Iterable<int> iterable) → void
Inserts all objects of iterable at position index in this list.
inherited
join([String separator = ""]) → String
Converts each element to a String and concatenates the strings.
inherited
lastIndexOf(int element, [int? start]) → int
The last index of element in this list.
inherited
lastIndexWhere(bool test(int element), [int? start]) → int
The last index in the list that satisfies the provided test.
inherited
lastWhere(bool test(int element), {int orElse()?}) → int
The last element that satisfies the given predicate test.
inherited
map<T>(T toElement(int e)) → Iterable<T>
The current elements of this iterable modified by toElement.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
reduce(int combine(int value, int element)) → int
Reduces a collection to a single value by iteratively combining elements of the collection using the provided function.
inherited
remove(Object? value) → bool
Removes the first occurrence of value from this list.
inherited
removeAt(int index) → int
Removes the object at position index from this list.
inherited
removeLast() → int
Removes and returns the last object in this list.
inherited
removeRange(int start, int end) → void
Removes a range of elements from the list.
inherited
removeWhere(bool test(int element)) → void
Removes all objects from this list that satisfy test.
inherited
replaceRange(int start, int end, Iterable<int> replacements) → void
Replaces a range of elements with the elements of replacements.
inherited
retainWhere(bool test(int element)) → void
Removes all objects from this list that fail to satisfy test.
inherited
setAll(int index, Iterable<int> iterable) → void
Overwrites elements with the objects of iterable.
inherited
setRange(int start, int end, Iterable<int> iterable, [int skipCount = 0]) → void
Writes some elements of iterable into a range of this list.
inherited
shuffle([Random? random]) → void
Shuffles the elements of this list randomly.
inherited
singleWhere(bool test(int element), {int orElse()?}) → int
The single element that satisfies test.
inherited
skip(int count) → Iterable<int>
Creates an Iterable that provides all but the first count elements.
inherited
skipWhile(bool test(int value)) → Iterable<int>
Creates an Iterable that skips leading elements while test is satisfied.
inherited
sort([int compare(int a, int b)?]) → void
Sorts this list according to the order specified by the compare function.
inherited
sublist(int start, [int? end]) → Uint64List
Returns a new list containing the elements between start and end.
override
take(int count) → Iterable<int>
Creates a lazy iterable of the count first elements of this iterable.
inherited
takeWhile(bool test(int value)) → Iterable<int>
Creates a lazy iterable of the leading elements satisfying test.
inherited
toList({bool growable = true}) → List<int>
Creates a List containing the elements of this Iterable.
inherited
toSet() → Set<int>
Creates a Set containing the same elements as this iterable.
inherited
toString() → String
A string representation of this object.
inherited
where(bool test(int element)) → Iterable<int>
Creates a new lazy Iterable with all elements that satisfy the predicate test.
inherited
whereType<T>() → Iterable<T>
Creates a new lazy Iterable with all elements that have type T.
inherited

Operators

operator +(List<int> other) → List<int>
Returns the concatenation of this list and other.
inherited
operator ==(Object other) → bool
The equality operator.
inherited
operator [](int index) → int
The object at the given index in the list.
inherited
operator []=(int index, int value) → void
Sets the value at the given index in the list to value.
inherited

Constants

bytesPerElement → const int
8