qtxie

ANSI Escape Sequences

Standard escape codes are prefixed with Escape:

• Ctrl-Key: ^[
• Octal: \033
• Unicode: \u001b
• Hexadecimal: \x1B
• Decimal: 27

qtxie

#include <windows.h>	/* WinAPI */

/* Windows sleep in 100ns units */
BOOLEAN nanosleep(LONGLONG ns){
	/* Declarations */
	HANDLE timer;	/* Timer handle */
	LARGE_INTEGER li;	/* Time defintion */
	/* Create timer */
	if(!(timer = CreateWaitableTimer(NULL, TRUE, NULL)))
		return FALSE;

qtxie

qtxie

#define COBJMACROS
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <mfapi.h>
#include <mfidl.h>
#include <mfreadwrite.h>

#include <stdio.h>
#include <intrin.h>

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.
    //

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// 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][