rseroter

package goportable

import (
	"encoding/json" //encoding the response
	"log"           //writing logs
	"net/http"
	"strings" //flattening an array

	"cloud.google.com/go/storage"                                     //talking to cloud storage
	"github.com/GoogleCloudPlatform/functions-framework-go/functions" //go middleware

shakeel

Setup Windows 10

Use scoop to install all of the UNIX command line tools and most of my needed software tools.

powershell
Set-ExecutionPolicy RemoteSigned -scope CurrentUser
iex (new-object net.webclient).downloadstring('https://get.scoop.sh')
scoop bucket add versions
scoop install curl

shafik

What is the Strict Aliasing Rule and Why do we care?

(OR Type Punning, Undefined Behavior and Alignment, Oh My!)

What is strict aliasing? First we will describe what is aliasing and then we can learn what being strict about it means.

In C and C++ aliasing has to do with what expression types we are allowed to access stored values through. In both C and C++ the standard specifies which expression types are allowed to alias which types. The compiler and optimizer are allowed to assume we follow the aliasing rules strictly, hence the term strict aliasing rule. If we attempt to access a value using a type not allowed it is classified as undefined behavior(UB). Once we have undefined behavior all bets are off, the results of our program are no longer reliable.

Unfortunately with strict aliasing violations, we will often obtain the results we expect, leaving the possibility the a future version of a compiler with a new optimization will break code we th

igrigorik

  function onOpen() {
  var ss = SpreadsheetApp.getActiveSpreadsheet();
  var menuEntries = [ {name: "Run Query", functionName: "runQuery"} ];
  ss.addMenu("HTTP Archive + BigQuery", menuEntries);
}    

function runQuery() {
  var projectNumber = 'httparchive';
  
  var sheet = SpreadsheetApp.getActiveSheet();

kellegous

uint32_t FindMissing(uint32_t* arr) {
  uint32_t res[4];
  __m128i c = _mm_set1_epi32(0);
 
  for (int i = 0; i < 100; i+=4) {
    c = _mm_add_epi32(c,
      _mm_loadu_si128((__m128i*)&arr[i]));
  }
 
  _mm_store_si128((__m128i*)res, c);

hellerbarde

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

groks

/* Sequence: https://gist.github.com/1342205

 Example:

 var defSeq *sequence.Sequence

 func init() {
 	defSeq = sequence.Make("Default")
 	defSeq.BatchSize = 3 // for testing...
 }

coldnebo

[
  { "keys": ["ctrl+shift+x"], "command": "tidy_xml" },
  { "keys": ["ctrl+shift+j"], "command": "prettify_json" }
]

bradfitz

package main

import (
	"fmt"
)

type Person struct {
	Name       string
	Age        int
	Position   string

jeresig

au BufRead,BufNewFile jquery.*.js set ft=javascript syntax=jquery
set nocompatible
set autoindent
set tabstop=2
set showmatch
set vb t_vb=
set ruler
set nohls
set incsearch
syntax on