pyanfield’s gists

pyanfield / PSPDFUIKitMainThreadGuard.m

Created February 7, 2017 03:50 — forked from steipete/PSPDFUIKitMainThreadGuard.m

This is a guard that tracks down UIKit access on threads other than main. This snippet is taken from the commercial iOS PDF framework http://pspdfkit.com, but relicensed under MIT. Works because a lot of calls internally call setNeedsDisplay or setNeedsLayout. Won't catch everything, but it's very lightweight and usually does the job.You might n…

	// Taken from the commercial iOS PDF framework http://pspdfkit.com.
	// Copyright (c) 2014 Peter Steinberger, PSPDFKit GmbH. All rights reserved.
	// Licensed under MIT (http://opensource.org/licenses/MIT)
	//
	// You should only use this in debug builds. It doesn't use private API, but I wouldn't ship it.

	// PLEASE DUPE rdar://27192338 (https://openradar.appspot.com/27192338) if you would like to see this in UIKit.

	#import <objc/runtime.h>
	#import <objc/message.h>

pyanfield / PSPDFThreadSafeMutableDictionary.m

Created February 7, 2017 03:37 — forked from steipete/PSPDFThreadSafeMutableDictionary.m

Simple implementation of a thread safe mutable dictionary. In most cases, you want NSCache instead, but it can be useful in situations where you want to manually control what is evicted from the cache in low memory situations. **Warning:** I only use this for setting/getting keys. Enumeration is not thread safe here and will still throw exceptio…

	//
	// PSPDFThreadSafeMutableDictionary.m
	//
	// Copyright (c) 2013 Peter Steinberger, PSPDFKit GmbH. All rights reserved.
	//
	// 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

pyanfield / springer-free-maths-books.md

Created December 29, 2015 02:04 — forked from bishboria/springer-free-maths-books.md

Springer have made a bunch of maths books available for free, here are the direct links

Direct links to free Springer maths books (pdf versions)

duplicates = multiple editions

A Classical Introduction to Modern Number Theory,Kenneth IrelandMichael Rosen

A Course in Arithmetic,Jean-Pierre Serre

pyanfield / introrx.md

Created November 20, 2015 06:45 — forked from staltz/introrx.md

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

pyanfield / DateParsingPerformanceComparison.m

Last active August 29, 2015 14:11 — forked from AnuragMishra/DateParsingPerformanceComparison.m

	#import <Foundation/Foundation.h>
	#import "sqlite3.h"

	typedef int64_t timestamp;

	NSUInteger randomNumberInRange(NSUInteger start, NSUInteger end);

	// Create a sample date using the ISO-8601 format.
	// 2013-04-23T16:29:05Z
	NSString* generateSampleDate();

pyanfield pyanfield

Direct links to free Springer maths books (pdf versions)

The introduction to Reactive Programming you've been missing

This tutorial as a series of videos