AndreyPanov
/ sethack.m
Created
July 5, 2016 13:41
— forked from Catfish-Man/sethack.m
Demonstrating the trick of using stack-allocated mimics and sets for lookup tables instead of heap allocated keys and dictionaries
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| // Compile with clang -framework Foundation sethack.m | |
| #import <Foundation/Foundation.h> | |
| #import <objc/runtime.h> | |
| /* | |
| CFHashBytes from http://www.opensource.apple.com/source/CF/CF-1153.18/CFUtilities.c | |
| */ | |
| #define ELF_STEP(B) T1 = (H << 4) + B; T2 = T1 & 0xF0000000; if (T2) T1 ^= (T2 >> 24); T1 &= (~T2); H = T1; |