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@nixzhu
nixzhu / cancelableDelayTask.swift
Last active March 11, 2017 17:10
Cancelable Delay Task
import Foundation
typealias CancelableTask = (cancel: Bool) -> Void
func delay(time: NSTimeInterval, work: dispatch_block_t) -> CancelableTask? {
var finalTask: CancelableTask?
var cancelableTask: CancelableTask = { cancel in
if cancel {
@piaoger
piaoger / test_mmap_ios.m
Last active July 8, 2020 18:34
mmap on ios
// It's tested on ios 8.2 ..
// Apple document about virtual memory:
// Both OS X and iOS include a fully-integrated virtual memory system that you cannot turn off; it is always on.
// https://developer.apple.com/library/mac/documentation/Performance/Conceptual/ManagingMemory/Articles/AboutMemory.html
// Discussing mmap on ios:
// http://stackoverflow.com/questions/13425558/why-does-mmap-fail-on-ios
// http://stackoverflow.com/questions/9184773/is-there-a-practical-limit-on-the-number-of-memory-mapped-files-in-ios
#include <sys/mman.h>
@Ziewvater
Ziewvater / gist:998b5806b0d12e4cf35b
Created March 27, 2015 00:25
Determining if swift string contains emoji character
func containsEmoji(text: String) -> Bool {
var containsEmoji = false
for scalar in text.unicodeScalars {
switch scalar.value {
case 0x1F600...0x1F64F:
// Emoticons
containsEmoji = true
case 0x1F300...0x1F5FF:
// Misc Symbols and Pictographs
containsEmoji = true
@JadenGeller
JadenGeller / Random.swift
Last active May 25, 2017 20:23
Random Numbers in Swift
struct Random {
static func within<B: protocol<Comparable, ForwardIndexType>>(range: ClosedInterval<B>) -> B {
let inclusiveDistance = range.start.distanceTo(range.end).successor()
let randomAdvance = B.Distance(arc4random_uniform(UInt32(inclusiveDistance.toIntMax())).toIntMax())
return range.start.advancedBy(randomAdvance)
}
static func within(range: ClosedInterval<Float>) -> Float {
return (range.end - range.start) * Float(Float(arc4random()) / Float(UInt32.max)) + range.start
}
@ColinEberhardt
ColinEberhardt / gist:b4bf4e4566ffa88afcda
Created March 20, 2015 08:14
Pipe forward operator and curried free functions = fluent interface
// meet Stringy - a simple string type with a fluent interface
struct Stringy {
let content: String
init(_ content: String) {
self.content = content
}
func append(appendage: Stringy) -> Stringy {
@krzyzanowskim
krzyzanowskim / integerWithBytes
Last active May 30, 2018 03:36
integerWithBytes Swift way
// Playground - noun: a place where people can play
import Foundation
typealias Byte = UInt8
protocol GenericIntegerType: IntegerType {
init(_ v: Int)
init(_ v: UInt)
init(_ v: Int8)
@kristopherjohnson
kristopherjohnson / _sudoku.swift
Last active May 31, 2022 18:22
Sudoku solver in Swift
/*
Copyright (c) 2015 Kristopher Johnson
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
@slime73
slime73 / sdl-metal-example.m
Last active September 9, 2021 10:53
SDL + Metal example
/**
* This software is in the public domain. Where that dedication is not recognized,
* you are granted a perpetual, irrevokable license to copy and modify this file
* as you see fit.
*
* Requires SDL 2.0.4.
* Devices that do not support Metal are not handled currently.
**/
#import <UIKit/UIKit.h>
@goocarlos
goocarlos / folderSize.swift
Created January 14, 2015 14:30
folderSize Swift Implementation
class func folderSize(folderPath:String) -> UInt{
// @see http://stackoverflow.com/questions/2188469/calculate-the-size-of-a-folder
let filesArray:[String] = NSFileManager.defaultManager().subpathsOfDirectoryAtPath(folderPath, error: nil)! as [String]
var fileSize:UInt = 0
for fileName in filesArray{
let filePath = folderPath.stringByAppendingPathComponent(fileName)
let fileDictionary:NSDictionary = NSFileManager.defaultManager().attributesOfItemAtPath(filePath, error: nil)!
@ChocolateMinht
ChocolateMinht / Alamofire.swift
Created January 7, 2015 02:42
Alamofire wrapped in a struct (iOS7 compatibility)
// Alamofire.swift
//
// Copyright (c) 2014 Alamofire (http://alamofire.org)
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions: