ShonFrazier

#import <objc/runtime.h>

void dumpInheritance(Class cls) {
  
	do {
		NSLog(@"%@", cls);
	} while ((cls = class_getSuperclass(cls)) != [NSObject class]);
	
	NSLog(@" = = %@ ends", @(__PRETTY_FUNCTION__));
}

ShonFrazier

                              ,   .
                              ,  /   .
                              , /  .-  .
                              .  .-  .-
                            ./    .-- ...
                   .-------- *     .--
                  /                .......
                  ,                 ..
                   ........           ----
                           .        --..

ShonFrazier

//
//  dispatch-timer.c
//
//  Created by Shon Frazier on 4/22/13.
//  Copyright (c) 2013 Shon Frazier. All rights reserved.
//

#include <stdio.h>
#include <dispatch/dispatch.h>

ShonFrazier

<!-- sudo DailySoftwareUpdate.plist /Library/LaunchDaemons/ -->
<!-- sudo launchctl load /Library/LaunchDaemons/DailySoftwareUpdate.plist -->

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN"
  "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>Label</key>
    <string>DailySoftwareUpdate</string>

ShonFrazier

void dispatch_wait_while(dispatch_wait_condition_t condition_block, dispatch_time_t interval, dispatch_wait_completion_t completion_block) {
    if ( !condition_block ) return;
	if ( !interval ) return;
	if ( !completion_block ) return;
	
	dispatch_source_t timer = dispatch_source_create(DISPATCH_SOURCE_TYPE_TIMER, 0, 0, dispatch_get_current_queue());
	dispatch_source_set_timer(timer, DISPATCH_TIME_NOW, interval, 0.25*NSEC_PER_SEC);
	dispatch_source_set_event_handler(timer, ^{
		if (!condition_block()) {
			dispatch_source_cancel(timer);

ShonFrazier

char *cString = "CHS -  中设置了私人内容文件夹 您可以随时访问此文件夹。.pdf";
NSUInteger sLen = strlen(cString);

NSString *wrongString = [NSString stringWithFormat:@"%s", cString];
NSLog(@"%@", wrongString); // CHS -  中设置了私人内容文件夹 您可以随时访问此文件夹。.pdf

NSString *rightString = [[NSString alloc] initWithBytes:cString length:sLen encoding:NSUTF8StringEncoding];
NSLog(@"%@", rightString); // CHS -  中设置了私人内容文件夹 您可以随时访问此文件夹。.pdf

ShonFrazier

Class thisClass = [self class];
BOOL conforms = class_conformsToProtocol(thisClass, @protocol(NSObject));

XCTAssert(!conforms, @"*gasp*");

ShonFrazier

typedef enum {
	StyleCircle = 'circ',
	StylePie = '3.14',
	StylePolygon = 'poly',
} Style;

ShonFrazier

enum UTF8SequenceLength {
	Bytes1   = 0,
	Bytes2   = 0b11000000,
	Bytes3   = 0b11100000,
	Bytes4   = 0b11110000,
	BytesErr = 0b10000000,
};

enum UTF8ParsingMode {
	UTF8ParsingModeNone = 0,

ShonFrazier

// Playground - noun: a place where people can play

import Cocoa

let polyPath = NSBezierPath()
var sides = 8

var 𝛉 = 0.0
var 𝜋 = 3.14159
var 𝜋2 = 2*𝜋