bignerdranch

CGFloat BNRTimeBlock (void (^block)(void));

0xced

/*
 * Most NSString instances will actually be __NSCFString instances, so here are both NSString and __NSCFString implementations.
 * If you know how to create an NSString instance whose class is actually NSString please let me know.
 * Other possible concrete subclasses of NSString are: NSConstantString, __NSCFConstantString, NSPathStore2, NSSimpleCString and __NSLocalizedString.
 */

// CoreFoundation.framework 635.19.0 (Mac OS X 10.7.3)
@implementation NSObject

- (BOOL) isNSString__

Nadrin

On April 5 2012, #0x10c-dev agreed to the following standard ABI:

- Registers A, B, C are clobberable across calls

- Registers I, J, X, Y, Z are preserved across calls

- Return in A

- J is used for base stack pointer (preserving the value of SP before allocating data for locals)

sebfisch

#!/bin/bash

# Replaces classes in Android Package Files
# (c) Sebastian Fischer, CC-BY

# Can be used to rebuild an App with a modified version of a used library,
# as required for closed works that link to an LGPL library.

# Depends on: https://code.google.com/p/dex2jar/

jckarter

fml

The function manipulation language

"I just implemented Conway's Game of Life in two lines of code. #fml"

pad = x flip[stitch] 0, stitch 0, flip[cat] 0, cat 0
life = pad, neighborhoods[3 3], [ravel, [sum in?: [x @ 4, + 3; 3]]]/2

jboner

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

MohamedAlaa

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

stevenharman

module Root
  FOO = 'Ayyyy!'
end

module Root::NotNested
  def self.speak
    puts FOO
  end
end

steipete

// Copyright (c) 2012-2013 Peter Steinberger (http://petersteinberger.com)
// 
// 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:
// 
// The above copyright notice and this permission notice shall be included in

mikeash

// clang -framework Foundation -fobjc-arc -O3 test.m

#import <Foundation/Foundation.h>


@interface Slice : NSObject
@property NSInteger start;
@property NSInteger length;
@end
@implementation Slice