qtxie

utxs: [inputs [[addr "mnXVvGotveRZUYH7qX9sYBQwwvUEbNH4Jy" pubkey #{
04CA60B8F84405C00EEE10DC62D4B42E9C475E8D1213932DB38073C8C22CA0C5
40DC534D59C252D0B96E008FE6BD1CC7B8EB64B659B9D7C3AFD9BC6CF5576A7E
6E
} tx-hash {87ca1a8160708df6e7f0e6fd335ddd447aed015eb6e5bb9b845230edf7988c01} pat
h [-2147483604 -2147483647 -2147483648 1 0] info [version 1 lock_time 0 inputs [
[prev-addresses ["msZnufFHcrxKK29jUcksxADMFvztPZk5jJ"] prev-position 0 prev-tx-h
ash {20c3030d3e17989ac22d1c65b537f8e38824b244492d09550df6bc58596e2038} script-he
x {483045022100a25b8d3752022b4c8e8a927a6eb38f00a22a8c20e43029533af5f16bc32236250
2206befdb03169be0a2a4b47d3b1362c026e30b0491aeb36d5177a415cfe7e44c28012102a3bcf3b

qtxie

Red/System [
	Title:	"A min-heap implementation"
	Author: "Xie Qingtian"
	File: 	%min-heap.reds
	Tabs:	4
	Rights: "Copyright (C) 2018 Xie Qingtian. All rights reserved."
	License: {
		Distributed under the Boost Software License, Version 1.0.
		See https://github.com/red/red/blob/master/BSL-License.txt
	}

qtxie

From the WebKit documentation at: 
http://www.opensource.apple.com/source/WebKit/WebKit-7533.16/chromium/src/mac/WebInputEventFactory.mm
    
    // Of Mice and Men
    // ---------------
    //
    // There are three types of scroll data available on a scroll wheel CGEvent.
    // Apple's documentation ([1]) is rather vague in their differences, and not
    // terribly helpful in deciding which to use. This is what's really going on.
    //

qtxie

Keybase proof

I hereby claim:

• I am qtxie on github.
• I am qtxie (https://keybase.io/qtxie) on keybase.
• I have a public key whose fingerprint is 8DEE 946F 308F B191 FD47 2505 9B1C 7BFD AF8D 021F

To claim this, I am signing this object:

qtxie

// UIFontDescriptor on iOS 7 or later

    NSDictionary *traitsAttributes = @{UIFontSymbolicTrait: @(UIFontDescriptorTraitMonoSpace)};
    NSDictionary *fontAttributes = @{UIFontDescriptorTraitsAttribute: traitsAttributes};
    UIFontDescriptor *fontDescriptor = [UIFontDescriptor fontDescriptorWithFontAttributes:fontAttributes];
    NSArray *array = [fontDescriptor matchingFontDescriptorsWithMandatoryKeys:nil];
    for (UIFontDescriptor *descriptor in array) {
        NSLog(@"%@", descriptor.postscriptName);
//        NSLog(@"%@", [descriptor objectForKey:UIFontDescriptorNameAttribute]);
//        NSLog(@"%@", [descriptor objectForKey:UIFontDescriptorVisibleNameAttribute]);

qtxie

#!/bin/bash

# from http://habrahabr.ru/post/108240/
ncpus=`grep -ciw ^processor /proc/cpuinfo`
test "$ncpus" -gt 1 || exit 1

n=0
for irq in `cat /proc/interrupts | grep eth | awk '{print $1}' | sed s/\://g`
do
    f="/proc/irq/$irq/smp_affinity"

qtxie

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

qtxie

Red [
    Title: "JSON parser"
    File: %json.red
    Author: "Nenad Rakocevic, Qingtian Xie"
    License: "BSD-3 - https://github.com/red/red/blob/master/BSD-3-License.txt"
]

json: context [
	quoted-char: charset {"\/bfnrt}
	exponent:	 charset "eE"

qtxie

system/view/auto-sync?: no

grid: collect [repeat i 50 [keep/only collect [repeat j 50 [keep random true]]]]
scratchgrid: collect [repeat i 50 [keep/only collect [repeat j 50 [keep false]]]]

a: copy grid/1
b: copy grid/50
c: collect [keep/only b keep grid keep/only a]

count-neighbors: function [gridd x y][

qtxie

#include <objc/runtime.h>
#include <objc/message.h>

#include <CoreFoundation/CoreFoundation.h>

/* ... */

/**
 * Return a character string that holds the current version
 * of the operating system which is equivalent to: