CTMacUser

Entity Duplication

• Proposal: SE-NNNN
• Authors: Daryle Walker, Author 2
• Review Manager: TBD
• Status: Awaiting review

Introduction

This is a proposal to add a macro-like facility to automatically create lists.

CTMacUser

// Copyright (c) 2018 Daryle Walker.
// Distributed under the MIT License.

// Based off <https://en.wikipedia.org/wiki/Calkin–Wilf_tree>.
// "fusc" from Edsger W. Dijkstra.
// To-Do: Add the iterative version of "fusc"

struct SternDiatomicSequenceIterator: IteratorProtocol {

    var cache = [0: 0, 1: 1]

CTMacUser

/*

  BinaryInteger+Extensions.swift

  Created by Daryle Walker on 1/29/18.
  Copyright (c) 2018 Daryle Walker.
  Distributed under the MIT License.

  Various properties and methods for BitArray's bit-twiddling.

CTMacUser

/// A singly-linked list.
public final class SinglyLinkedList<T>: RangeReplaceableCollection, MutableCollection {

    /// A node for a singly-linked list.
    final class Node {
        /// The node's data.  May be absent (like for sentinel nodes).
        var value: T?
        /// The link to the next node, or `nil` when none.
        var next: Node!

CTMacUser

//
//  LeftOpenRange.swift
//  NodeCollections
//
//  Created by Daryle Walker on 4/6/18.
//  Copyright © 2018 Daryle Walker. All rights reserved.
//


// MARK: Primary Definitions

CTMacUser

//
//  SegmentedArray.swift
//  NodeCollections
//
//  Created by Daryle Walker on 4/15/18.
//  Copyright © 2018 Daryle Walker. All rights reserved.
//


// MARK: Globals

CTMacUser

//
//  Int4.swift
//  NegaSuperBinary
//
//  Created by Daryle Walker on 6/22/18.
//  Copyright © 2018 Daryle Walker. All rights reserved.
//

import Foundation

CTMacUser

Locating Sequence-Commonality Breaks

• Proposal: SE-NNNN
• Authors: Daryle Walker
• Review Manager: TBD
• Status: Awaiting implementation

Introduction

CTMacUser

/**
 A lazy wrapper for `Collection.split`, but only when empty subsequences can also be vended.

 Based off the `LazySplitCollection` sample type in the [article "Conditional Conformance in the Standard Library" at the Swift Blog](https://swift.org/blog/conditional-conformance/) by [Ben Cohen](https://twitter.com/airspeedswift/), but extended only to support maximum subsequence counts.
 */
public struct LazyEmptyAdmittingSplitCollection<Base: Collection> {

    /// The wrapped collection, whose subsequences will be vended as elements of `self`.
    let base: Base
    /// The maximum number of splits allowed; the count of subsequences vended is at most one greater than this.

CTMacUser

/*
 MultipleSearch.swift -- Sequence and collection multi-element search, all locations

 Copyright (c) 2019 Daryle Walker

 */

// MARK: Searching for every occurance of a string of elements within a sequence

extension Sequence {