Trie.swift

//
//  Trie.swift
//  SceneTest
//
//  Created by Greg Titus on 6/7/14.
//  Copyright (c) 2014 The Omni Group. All rights reserved.
//

// This is essentially the same data structure as OFTrie in OmniFoundation, except that the OmniFoundation version is mutable and ephemeral,
// and this version is immutable and persistent. Every time you add a string to the trie, it replaces all the nodes along the string's path

kgn

+ (void)drawNoiseWithOpacity:(CGFloat)opacity inRect:(CGRect)rect{
    static UIImage *noiseImage = nil;     
    static dispatch_once_t oncePredicate;
    dispatch_once(&oncePredicate, ^{
        NSUInteger width = 64, height = 64;
        NSUInteger size = width*height;
        char *rgba = (char *)malloc(size); srand(124);
        for(NSUInteger i=0; i < size; ++i){rgba[i] = rand()%256;}
        CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceGray();
        CGContextRef bitmapContext = 

shayne

[[UIApplication sharedApplication] _performMemoryWarning];