CTMacUser

//===--- AdjacentPermutation.swift ----------------------------*- swift -*-===//
//
// Created by Daryle Walker on 2019-Nov-27
//
// Copyright © 2019 Daryle Walker
//
// Methods to rearrange a collection to its next or previous permutation.
// Methods to return a sequence of all permutations of a collection, both lazy
// and eager.
//

CTMacUser

//===--- ChunkedCollection.swift ------------------------------*- swift -*-===//
//
// Created by Daryle Walker on 2020-Feb-29
//
// Copyright © 2020 Daryle Walker
//
// A generic type that models a Collection that wraps another, vending fixed-
// sized sub-sequences (i.e. chunks) of the inner collection as the elements of
// the outer collection.  There is an option whether or not to vend the last
// chunks if they occur late enough that they are shorter than expected.

CTMacUser

Fixed-Size Array Manifesto

Introduction

This manifesto outlines a plan to add compound types corresponding to fixed-size scoped-storage homogenous containers.

Motivation/Goals

• Bring a fixed-size, scoped-storage array type to Swift
• Use declaration and dereference syntax similar to Array. Possibly other members too.

CTMacUser

extension Collection {

    /// If the collection does not have the given sequence as a prefix when
    /// using the given predicate to compare elements, returns the collection
    /// as-is; otherwise, returns the part of the collection after that prefix.
    ///
    /// The predicate must be an equivalence relation over the elements.
    ///
    /// Whether a prefix was actually dropped can be tested by checking if the
    /// returned sub-sequence's `startIndex`  is greater than the collection's

CTMacUser

import Foundation


extension Collection {

    /// Returns the index range for the earliest subsequence of this collection
    /// that is equivalent to the given sequence, using the given predicate to
    /// compare elements.
    ///
    /// The predicate must be an equivalence relation over the elements.