Structure

ManagedAudioChannelLayout.ChannelDescriptions

No overview available.

Declaration

struct ManagedAudioChannelLayout.ChannelDescriptions

Topics

Instance Properties

var first: AudioChannelDescription?

The first element of the collection.

var indices: Range<Int>

The indices that are valid for subscripting the collection, in ascending order.

var isEmpty: Bool

A Boolean value indicating whether the collection is empty.

var last: AudioChannelDescription?

The last element of the collection.

var lazy: LazySequence<ManagedAudioChannelLayout.ChannelDescriptions>

A sequence containing the same elements as this sequence, but on which some operations, such as map and filter, are implemented lazily.

var underestimatedCount: Int

A value less than or equal to the number of elements in the collection.

Instance Methods

func allSatisfy((AudioChannelDescription) -> Bool) -> Bool

Returns a Boolean value indicating whether every element of a sequence satisfies a given predicate.

func compactMap<ElementOfResult>((AudioChannelDescription) -> ElementOfResult?) -> [ElementOfResult]

Returns an array containing the non-nil results of calling the given transformation with each element of this sequence.

func contains(where: (AudioChannelDescription) -> Bool) -> Bool

Returns a Boolean value indicating whether the sequence contains an element that satisfies the given predicate.

func difference<C>(from: C, by: (C.Element, AudioChannelDescription) -> Bool) -> CollectionDifference<AudioChannelDescription>

Returns the difference needed to produce this collection’s ordered elements from the given collection, using the given predicate as an equivalence test.

func distance(from: Int, to: Int) -> Int

Returns the distance between two indices.

func drop(while: (AudioChannelDescription) -> Bool) -> Slice<ManagedAudioChannelLayout.ChannelDescriptions>

Returns a subsequence by skipping elements while predicate returns true and returning the remaining elements.

func dropFirst(Int) -> Slice<ManagedAudioChannelLayout.ChannelDescriptions>

Returns a subsequence containing all but the given number of initial elements.

func dropLast(Int) -> Slice<ManagedAudioChannelLayout.ChannelDescriptions>

Returns a subsequence containing all but the specified number of final elements.

func elementsEqual<OtherSequence>(OtherSequence, by: (AudioChannelDescription, OtherSequence.Element) -> Bool) -> Bool

Returns a Boolean value indicating whether this sequence and another sequence contain equivalent elements in the same order, using the given predicate as the equivalence test.

func enumerated() -> EnumeratedSequence<ManagedAudioChannelLayout.ChannelDescriptions>

Returns a sequence of pairs (n, x), where n represents a consecutive integer starting at zero and x represents an element of the sequence.

func filter((AudioChannelDescription) -> Bool) -> [AudioChannelDescription]

Returns an array containing, in order, the elements of the sequence that satisfy the given predicate.

func first(where: (AudioChannelDescription) -> Bool) -> AudioChannelDescription?

Returns the first element of the sequence that satisfies the given predicate.

func firstIndex(where: (AudioChannelDescription) -> Bool) -> Int?

Returns the first index in which an element of the collection satisfies the given predicate.

func flatMap<SegmentOfResult>((AudioChannelDescription) -> SegmentOfResult) -> [SegmentOfResult.Element]

Returns an array containing the concatenated results of calling the given transformation with each element of this sequence.

func forEach((AudioChannelDescription) -> Void)

Calls the given closure on each element in the sequence in the same order as a for-in loop.

func formIndex(inout Int, offsetBy: Int)

Offsets the given index by the specified distance.

func formIndex(inout Int, offsetBy: Int, limitedBy: Int) -> Bool

Offsets the given index by the specified distance, or so that it equals the given limiting index.

func formIndex(after: inout Int)

Replaces the given index with its successor.

func formIndex(before: inout Int)

Replaces the given index with its predecessor.

func index(Int, offsetBy: Int) -> Int

Returns an index that is the specified distance from the given index.

func index(Int, offsetBy: Int, limitedBy: Int) -> Int?

Returns an index that is the specified distance from the given index, unless that distance is beyond a given limiting index.

func index(after: Int) -> Int

Returns the position immediately after the given index.

func index(before: Int) -> Int

Returns the position immediately after the given index.

func index(where: (AudioChannelDescription) -> Bool) -> Int?

Returns the first index in which an element of the collection satisfies the given predicate.

Deprecated
func last(where: (AudioChannelDescription) -> Bool) -> AudioChannelDescription?

Returns the last element of the sequence that satisfies the given predicate.

func lastIndex(where: (AudioChannelDescription) -> Bool) -> Int?

Returns the index of the last element in the collection that matches the given predicate.

func lexicographicallyPrecedes<OtherSequence>(OtherSequence, by: (AudioChannelDescription, AudioChannelDescription) -> Bool) -> Bool

Returns a Boolean value indicating whether the sequence precedes another sequence in a lexicographical (dictionary) ordering, using the given predicate to compare elements.

func map<T>((AudioChannelDescription) -> T) -> [T]

Returns an array containing the results of mapping the given closure over the sequence’s elements.

func max(by: (AudioChannelDescription, AudioChannelDescription) -> Bool) -> AudioChannelDescription?

Returns the maximum element in the sequence, using the given predicate as the comparison between elements.

func min(by: (AudioChannelDescription, AudioChannelDescription) -> Bool) -> AudioChannelDescription?

Returns the minimum element in the sequence, using the given predicate as the comparison between elements.

func partition(by: (AudioChannelDescription) -> Bool) -> Int

Reorders the elements of the collection such that all the elements that match the given predicate are after all the elements that don’t match.

func prefix(Int) -> Slice<ManagedAudioChannelLayout.ChannelDescriptions>

Returns a subsequence, up to the specified maximum length, containing the initial elements of the collection.

func prefix(through: Int) -> Slice<ManagedAudioChannelLayout.ChannelDescriptions>

Returns a subsequence from the start of the collection through the specified position.

func prefix(upTo: Int) -> Slice<ManagedAudioChannelLayout.ChannelDescriptions>

Returns a subsequence from the start of the collection up to, but not including, the specified position.

func prefix(while: (AudioChannelDescription) -> Bool) -> Slice<ManagedAudioChannelLayout.ChannelDescriptions>

Returns a subsequence containing the initial elements until predicate returns false and skipping the remaining elements.

func randomElement() -> AudioChannelDescription?

Returns a random element of the collection.

func randomElement<T>(using: inout T) -> AudioChannelDescription?

Returns a random element of the collection, using the given generator as a source for randomness.

func reduce<Result>(Result, (Result, AudioChannelDescription) -> Result) -> Result

Returns the result of combining the elements of the sequence using the given closure.

func reduce<Result>(into: Result, (inout Result, AudioChannelDescription) -> ()) -> Result

Returns the result of combining the elements of the sequence using the given closure.

func reverse()

Reverses the elements of the collection in place.

func reversed() -> ReversedCollection<ManagedAudioChannelLayout.ChannelDescriptions>

Returns a view presenting the elements of the collection in reverse order.

func shuffle()

Shuffles the collection in place.

func shuffle<T>(using: inout T)

Shuffles the collection in place, using the given generator as a source for randomness.

func shuffled() -> [AudioChannelDescription]

Returns the elements of the sequence, shuffled.

func shuffled<T>(using: inout T) -> [AudioChannelDescription]

Returns the elements of the sequence, shuffled using the given generator as a source for randomness.

func sort(by: (AudioChannelDescription, AudioChannelDescription) -> Bool)

Sorts the collection in place, using the given predicate as the comparison between elements.

func sorted(by: (AudioChannelDescription, AudioChannelDescription) -> Bool) -> [AudioChannelDescription]

Returns the elements of the sequence, sorted using the given predicate as the comparison between elements.

func split(maxSplits: Int, omittingEmptySubsequences: Bool, whereSeparator: (AudioChannelDescription) -> Bool) -> [Slice<ManagedAudioChannelLayout.ChannelDescriptions>]

Returns the longest possible subsequences of the collection, in order, that don’t contain elements satisfying the given predicate.

func starts<PossiblePrefix>(with: PossiblePrefix, by: (AudioChannelDescription, PossiblePrefix.Element) -> Bool) -> Bool

Returns a Boolean value indicating whether the initial elements of the sequence are equivalent to the elements in another sequence, using the given predicate as the equivalence test.

func suffix(Int) -> Slice<ManagedAudioChannelLayout.ChannelDescriptions>

Returns a subsequence, up to the given maximum length, containing the final elements of the collection.

func suffix(from: Int) -> Slice<ManagedAudioChannelLayout.ChannelDescriptions>

Returns a subsequence from the specified position to the end of the collection.

func swapAt(Int, Int)

Exchanges the values at the specified indices of the collection.

func withContiguousMutableStorageIfAvailable<R>((inout UnsafeMutableBufferPointer<AudioChannelDescription>) -> R) -> R?

Call body(p), where p is a pointer to the collection’s mutable contiguous storage. If no such storage exists, it is first created. If the collection does not support an internal representation in a form of mutable contiguous storage, body is not called and nil is returned.

func withContiguousStorageIfAvailable<R>((UnsafeBufferPointer<AudioChannelDescription>) -> R) -> R?

Call body(p), where p is a pointer to the collection’s contiguous storage. If no such storage exists, it is first created. If the collection does not support an internal representation in a form of contiguous storage, body is not called and nil is returned.