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Alessandro Vendruscolo vendruscolo

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vendruscolo / README.md
Created October 28, 2012 15:13
100MB read test

Using this file http://code.google.com/p/jquery-speedtest/downloads/detail?name=100MB.txt

This is one line full of 0s, so there are 104857600 0s.

wget http://jquery-speedtest.googlecode.com/files/100MB.txt

main.m reads the whole file at once. Doing so it occupies more than 200MB of memory (100MB for the NSString, another 100MB for the char array), as you can see here http://d.pr/i/jopC

main_memory_mapped.m maps the file in-memory, incrementally reading it; therefore its far less memory aggressive, as you can see here http://d.pr/i/YYzi

@vendruscolo
vendruscolo / CameraPreviewLayer.swift
Created February 21, 2017 09:37
//
// CameraView.swift
// ALCameraViewController
//
// Created by Alex Littlejohn on 2015/06/17.
// Copyright (c) 2015 zero. All rights reserved.
//
import UIKit
import AVFoundation
@vendruscolo
vendruscolo / playground.swift
Created January 31, 2021 18:18
import Foundation
// https://twitter.com/peres/status/1353810351264034818
func daysBetweenDates(start: Date, end: Date, calendar: Calendar) -> [Date] {
guard let diff = cal.dateComponents([.day], from: start, to: end).day else {
return []
}
// if you need to include end in the array, use 0...diff+1
return (0...diff).compactMap {
@vendruscolo
vendruscolo / keybase.md
Created April 24, 2017 09:16

Keybase proof

I hereby claim:

  • I am vendruscolo on github.
  • I am vendruscolo (https://keybase.io/vendruscolo) on keybase.
  • I have a public key ASDw2bY1SCPd92Uv_-AEM_ZpWBwNDBxVjk4Wsn5vVZgu3go

To claim this, I am signing this object:

@vendruscolo
vendruscolo / gist:8426284
Created January 14, 2014 21:39
<html>
<head>
<noscript>&lt;META http-equiv="refresh" content="0;URL=http://CSS-Tricks.com"&gt;</noscript>
<script>location.replace("http:\/\/CSS-Tricks.com")</script>
</head>
</html>
@vendruscolo
vendruscolo / MyAttributedLabel.h
Last active December 18, 2015 16:18
How to reproduce this issue https://github.com/mattt/TTTAttributedLabel/issues/240
#import TTTAttributedLabel.h
@interface MyAttributedLabel : TTTAttributedLabel
@end
@vendruscolo
vendruscolo / gist:5809924
Last active December 18, 2015 16:18
Poor's man fix for this issue https://github.com/mattt/TTTAttributedLabel/issues/240
- (void)setTextAlignment:(NSTextAlignment)textAlignment {
NSTextAlignment oldTextAlignment = self.textAlignment;
[super setTextAlignment:textAlignment];
if (textAlignment != oldTextAlignment) {
// update link attributes
if (self.linkAttributes) {
NSMutableDictionary *mutableLinkAttributes = [self.linkAttributes mutableCopy];
NSMutableDictionary *mutableActiveLinkAttributes = [self.activeLinkAttributes mutableCopy];
@vendruscolo
vendruscolo / playground.swift
Created October 20, 2015 09:23
Type alias example
//: Playground - noun: a place where people can play
struct Foo<T> {
typealias FooHandler = (data: T) -> Void
let bar: T
var handler: FooHandler?
init(bar: T) {
@vendruscolo
vendruscolo / gist:e0904f9054e0d42f29c2
Created March 20, 2015 12:35
Workaround for http://openradar.appspot.com/20224363
- (instancetype)initWithCoder:(NSCoder *)coder {
if ((self = [self init])) {
NSDictionary *pointValue = [coder decodeObjectForKey:@"point"];
CGPointMakeWithDictionaryRepresentation((__bridge CFDictionaryRef)pointValue, &_point);
_number = [coder decodeDoubleForKey:@"number"];
}
return self;
}
- (void)encodeWithCoder:(NSCoder *)coder {
@vendruscolo
vendruscolo / gist:e8b823ddf63a539c13ce
Created January 20, 2015 14:39
typedef void (^pspdf_setter)(id self, SEL _cmd, id value);
static pspdf_setter pspdf_setterForKey(NSString *key) {
return ^(id self, SEL _cmd, id value) {
// The ivar name, from the original key: fooBar -> _fooBar
// It's a convention: don't break it
const char * ivarName = [[@"_" stringByAppendingString:[key capitalizedString]] UTF8String];