"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
CGFloat BNRTimeBlock (void (^block)(void)); |
/* | |
* 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__ |
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) |
#!/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/ |
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 |
module Root | |
FOO = 'Ayyyy!' | |
end | |
module Root::NotNested | |
def self.speak | |
puts FOO | |
end | |
end |
// 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 |
// clang -framework Foundation -fobjc-arc -O3 test.m | |
#import <Foundation/Foundation.h> | |
@interface Slice : NSObject | |
@property NSInteger start; | |
@property NSInteger length; | |
@end | |
@implementation Slice |