W3cubDocs

/Scala 3.2

Trait ClassTagIterableFactory.ClassTagIterableFactory

trait ClassTagIterableFactory[+CC[_]] extends EvidenceIterableFactory[CC, ClassTag]

Base trait for companion objects of collections that require an implicit ClassTag.

Type parameters	CC Collection type constructor (e.g. `ArraySeq`)
Supertypes	trait EvidenceIterableFactory[CC, ClassTag] trait Serializable class Object trait Matchable class Any
Known subtypes	class Delegate[CC] class Delegate[CC] trait ClassTagSeqFactory[CC] trait StrictOptimizedClassTagSeqFactory[CC] object ArraySeq.type object ArraySeq.type object UnrolledBuffer.type

Concrete methods

Source
def fill[A : ClassTag](n1: Int, n2: Int)(elem: => A): CC[CC[A]]

Produces a two-dimensional collection containing the results of some element computation a number of times.

Value parameters	elem the element computation n1 the number of elements in the 1st dimension n2 the number of elements in the 2nd dimension
Returns	A collection that contains the results of `n1 x n2` evaluations of `elem`.

Source
def fill[A : ClassTag](n1: Int, n2: Int, n3: Int)(elem: => A): CC[CC[CC[A]]]

Produces a three-dimensional collection containing the results of some element computation a number of times.

Value parameters	elem the element computation n1 the number of elements in the 1st dimension n2 the number of elements in the 2nd dimension n3 the number of elements in the 3rd dimension
Returns	A collection that contains the results of `n1 x n2 x n3` evaluations of `elem`.

Source
def fill[A : ClassTag](n1: Int, n2: Int, n3: Int, n4: Int)(elem: => A): CC[CC[CC[CC[A]]]]

Produces a four-dimensional collection containing the results of some element computation a number of times.

Value parameters	elem the element computation n1 the number of elements in the 1st dimension n2 the number of elements in the 2nd dimension n3 the number of elements in the 3rd dimension n4 the number of elements in the 4th dimension
Returns	A collection that contains the results of `n1 x n2 x n3 x n4` evaluations of `elem`.

Source
def fill[A : ClassTag](n1: Int, n2: Int, n3: Int, n4: Int, n5: Int)(elem: => A): CC[CC[CC[CC[CC[A]]]]]

Produces a five-dimensional collection containing the results of some element computation a number of times.

Value parameters	elem the element computation n1 the number of elements in the 1st dimension n2 the number of elements in the 2nd dimension n3 the number of elements in the 3rd dimension n4 the number of elements in the 4th dimension n5 the number of elements in the 5th dimension
Returns	A collection that contains the results of `n1 x n2 x n3 x n4 x n5` evaluations of `elem`.

Source
def range[A : ClassTag](start: A, end: A): CC[A]

Produces a collection containing a sequence of increasing of integers.

Value parameters	end the end value of the collection (the first value NOT contained) start the first element of the collection
Returns	a collection with values `start, start + 1, ..., end - 1`

Source
def range[A : ClassTag](start: A, end: A, step: A): CC[A]

Produces a collection containing equally spaced values in some integer interval.

Value parameters	end the end value of the collection (the first value NOT contained) start the start value of the collection step the difference between successive elements of the collection (must be positive or negative)
Returns	a collection with values `start, start + step, ...` up to, but excluding `end`

Source
def tabulate[A : ClassTag](n1: Int, n2: Int)(f: (Int, Int) => A): CC[CC[A]]

Produces a two-dimensional collection containing values of a given function over ranges of integer values starting from 0.

Value parameters	f The function computing element values n1 the number of elements in the 1st dimension n2 the number of elements in the 2nd dimension
Returns	A collection consisting of elements `f(i1, i2)` for `0 <= i1 < n1` and `0 <= i2 < n2`.

Source
def tabulate[A : ClassTag](n1: Int, n2: Int, n3: Int)(f: (Int, Int, Int) => A): CC[CC[CC[A]]]

Produces a three-dimensional collection containing values of a given function over ranges of integer values starting from 0.

Value parameters	f The function computing element values n1 the number of elements in the 1st dimension n2 the number of elements in the 2nd dimension n3 the number of elements in the 3rd dimension
Returns	A collection consisting of elements `f(i1, i2, i3)` for `0 <= i1 < n1`, `0 <= i2 < n2`, and `0 <= i3 < n3`.

Source
def tabulate[A : ClassTag](n1: Int, n2: Int, n3: Int, n4: Int)(f: (Int, Int, Int, Int) => A): CC[CC[CC[CC[A]]]]

Produces a four-dimensional collection containing values of a given function over ranges of integer values starting from 0.

Value parameters	f The function computing element values n1 the number of elements in the 1st dimension n2 the number of elements in the 2nd dimension n3 the number of elements in the 3rd dimension n4 the number of elements in the 4th dimension
Returns	A collection consisting of elements `f(i1, i2, i3, i4)` for `0 <= i1 < n1`, `0 <= i2 < n2`, `0 <= i3 < n3`, and `0 <= i4 < n4`.

Source
def tabulate[A : ClassTag](n1: Int, n2: Int, n3: Int, n4: Int, n5: Int)(f: (Int, Int, Int, Int, Int) => A): CC[CC[CC[CC[CC[A]]]]]

Produces a five-dimensional collection containing values of a given function over ranges of integer values starting from 0.

Value parameters	f The function computing element values n1 the number of elements in the 1st dimension n2 the number of elements in the 2nd dimension n3 the number of elements in the 3rd dimension n4 the number of elements in the 4th dimension n5 the number of elements in the 5th dimension
Returns	A collection consisting of elements `f(i1, i2, i3, i4, i5)` for `0 <= i1 < n1`, `0 <= i2 < n2`, `0 <= i3 < n3`, `0 <= i4 < n4`, and `0 <= i5 < n5`.

Inherited methods

Source
def apply[A : ClassTag](xs: A*): CC[A]

Inherited from	EvidenceIterableFactory

Source
def empty[A : ClassTag]: CC[A]

Inherited from	EvidenceIterableFactory

Source
def fill[A : ClassTag](n: Int)(elem: => A): CC[A]

Produces a collection containing the results of some element computation a number of times.

Value parameters	elem the element computation n the number of elements contained in the collection.
Returns	A collection that contains the results of `n` evaluations of `elem`.
Inherited from	EvidenceIterableFactory

Source
def from[E : ClassTag](it: IterableOnce[E]): CC[E]

Inherited from	EvidenceIterableFactory

Source
def iterate[A : ClassTag](start: A, len: Int)(f: A => A): CC[A]

Produces a collection containing repeated applications of a function to a start value.

Value parameters	f the function that's repeatedly applied len the number of elements contained in the collection start the start value of the collection
Returns	a collection with `len` values in the sequence `start, f(start), f(f(start)), ...`
Inherited from	EvidenceIterableFactory

Source
def newBuilder[A : ClassTag]: Builder[A, CC[A]]

Inherited from	EvidenceIterableFactory

Source
def tabulate[A : ClassTag](n: Int)(f: Int => A): CC[A]

Produces a collection containing values of a given function over a range of integer values starting from 0.

Value parameters	f The function computing element values n The number of elements in the collection
Returns	A collection consisting of elements `f(0), ..., f(n -1)`
Inherited from	EvidenceIterableFactory

Source
def unfold[A : ClassTag, S](init: S)(f: S => Option[(A, S)]): CC[A]

Produces a collection that uses a function f to produce elements of type A and update an internal state of type S.

Type parameters	A Type of the elements S Type of the internal state
Value parameters	f Computes the next element (or returns `None` to signal the end of the collection) init State initial value
Returns	a collection that produces elements using `f` until `f` returns `None`
Inherited from	EvidenceIterableFactory

Inherited implicits

Source
implicit def evidenceIterableFactory[A : ClassTag]: Factory[A, CC[A]]

Inherited from	EvidenceIterableFactory

© 2002-2022 EPFL, with contributions from Lightbend.
Licensed under the Apache License, Version 2.0.
https://scala-lang.org/api/3.2.0/scala/collection/ClassTagIterableFactory.html

Trait ClassTagIterableFactory.ClassTagIterableFactory

trait ClassTagIterableFactory[+CC[_]] extends EvidenceIterableFactory[CC, ClassTag]

Concrete methods

Source def fill[A : ClassTag](n1: Int, n2: Int)(elem: => A): CC[CC[A]]

Source def fill[A : ClassTag](n1: Int, n2: Int, n3: Int)(elem: => A): CC[CC[CC[A]]]

Source def fill[A : ClassTag](n1: Int, n2: Int, n3: Int, n4: Int)(elem: => A): CC[CC[CC[CC[A]]]]

Source def fill[A : ClassTag](n1: Int, n2: Int, n3: Int, n4: Int, n5: Int)(elem: => A): CC[CC[CC[CC[CC[A]]]]]

Source def range[A : ClassTag](start: A, end: A): CC[A]

Source def range[A : ClassTag](start: A, end: A, step: A): CC[A]

Source def tabulate[A : ClassTag](n1: Int, n2: Int)(f: (Int, Int) => A): CC[CC[A]]

Source def tabulate[A : ClassTag](n1: Int, n2: Int, n3: Int)(f: (Int, Int, Int) => A): CC[CC[CC[A]]]

Source def tabulate[A : ClassTag](n1: Int, n2: Int, n3: Int, n4: Int)(f: (Int, Int, Int, Int) => A): CC[CC[CC[CC[A]]]]

Source def tabulate[A : ClassTag](n1: Int, n2: Int, n3: Int, n4: Int, n5: Int)(f: (Int, Int, Int, Int, Int) => A): CC[CC[CC[CC[CC[A]]]]]