steipete

//
//  KeyCommand.swift
//  Adds Keyboard Shortcuts to SwiftUI on iOS 13
//  See https://steipete.com/posts/fixing-keyboardshortcut-in-swiftui/
//  License: MIT
//
// Usage: (wrap view in `KeyboardEnabledHostingController`)
// Button(action: {
//       print("Button Tapped!!")
//  }) {

breeno

import UIKit

class ViewController: UIViewController {

    enum Section {
        case main
    }
    
    struct Item: Hashable {
        let height: CGFloat

Catfish-Man

As of iOS 11/macOS High Sierra, and only including ones in Foundation and CoreFoundation

Strings:

_NSCFString - a CFStringRef or CFMutableStringRef. This is the most common type of string object currently.
    - May have 8 bit (ASCII) or 16 bit (UTF-16) backing store
_NSCFConstantString - a compile time constant CFStringRef, like you'd get with @"foo"
    - May also be generated by dynamic string creation if matches a string in a pre-baked table of common strings called the StringROM
NSBigMutableString - an NSString backed by a CFStorage (https://github.com/opensource-apple/CF/blob/master/CFStorage.h) for faster handling of very large strings
NSCheapMutableString - a very limited NSMutableString that allows for zero-copy initialization. Used in NSFileManager for temporarily wrapping stack buffers.

josephsieh

Jiwan

#include <boost/hana.hpp>
#include <iostream>
#include <type_traits>

struct A {};

std::string to_string(const A&)
{
    return "I am a A!";
}

facelordgists

( find . -type d -name ".git" && find . -name ".gitignore" && find . -name ".gitmodules" ) | xargs rm -rf

ffcai

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

bartolsthoorn

/*
 
 Original comments from Apple:
 
    File: MixerHostAudio.m
Abstract: Audio object: Handles all audio tasks for the application.
 Version: 1.0

 

xjones

//
//  TransitionController.h
//
//  Created by XJones on 11/25/11.
//

#import <UIKit/UIKit.h>

@interface TransitionController : UIViewController