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| @main | |
| public struct Brun { | |
| static let primesLength = 100000000 | |
| public static func main() { | |
| // proven that all primes are in the form '6k +/- 1' | |
| // this is a switch to advance the candidate of +2 or +4, to be xored with 1 every loop. | |
| var form_6k_pm1 = false | |
a40yostudent
/ .gitignore
Created
January 16, 2017 15:53
decent .gitignore for Xcode found somewhere
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| # Xcode | |
| # | |
| # gitignore contributors: remember to update Global/Xcode.gitignore, Objective-C.gitignore & Swift.gitignore | |
| ## Build generated | |
| build/ | |
| DerivedData/ | |
| ## Various settings | |
| *.pbxuser |
a40yostudent
/ enumerate_enumeration.swift
Last active
April 11, 2016 14:06
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| /* | |
| Convenient way to enumerate an enum, see also: | |
| http://www.swift-studies.com/blog/2014/6/10/enumerating-enums-in-swift | |
| http://www.wooji-juice.com/blog/stupid-swift-tricks-5-enums.html | |
| https://gist.github.com/erica/b849cef7fcd123756373 | |
| Sabino Paulicelli | |
| */ | |
| protocol SmartEnum { |