douglasrizzo

Blueman does not help when connecting the Apple Keyboard to Manjaro. In the future, follow these steps to fully configure it. This needs package bluez-utils.:

1. Get the device's MAC Address:

$ bluetoothctl
[bluetooth]$ power on
Changing power on succeeded
[bluetooth]$ devices
Device 00:11:22:33:44:55 Apple Wireless Keyboard

tembleking

package main

import (
	"fmt"
	"log"
	"math/rand"
	"net/http"
	"time"

	"github.com/prometheus/client_golang/prometheus"

miguelmota

package hdwallet

import (
	"crypto/ecdsa"
	"errors"
	"fmt"

	"github.com/btcsuite/btcd/chaincfg"
	"github.com/btcsuite/btcutil/hdkeychain"
	"github.com/ethereum/go-ethereum/accounts"

imyourm8

// Add this function to Loom SDK CryptoUtils.cs
public static byte[] GeneratePrivateKey(byte[] seed) {
    byte[] publicKey32;
    byte[] privateKey64;
    Ed25519.KeyPairFromSeed(out publicKey32, out privateKey64, seed);
    return privateKey64;
}

// You can use any BIP39 implementation. In this example i used https://github.com/ByronAP/BIP39.NET-Portable
var mnemonic = "spin sunset pact nature enhance include fatigue occur blind wire inner foot";

ghoneycutt

macos

##
# Host Database
#
# localhost is used to configure the loopback interface
# when the system is booting.  Do not change this entry.
##
127.0.0.1	localhost

giannisp

After automatically updating Postgres to 10.0 via Homebrew, the pg_ctl start command didn't work.
The error was "The data directory was initialized by PostgreSQL version 9.6, which is not compatible with this version 10.0."

Database files have to be updated before starting the server, here are the steps that had to be followed:

# need to have both 9.6.x and latest 10.0 installed, and keep 10.0 as default
brew unlink postgresql
brew install [email protected]
brew unlink [email protected]
brew link postgresql

asukakenji

Go (Golang) Standard Library Interfaces (Selected)

This is not an exhaustive list of all interfaces in Go's standard library. I only list those I think are important. Interfaces defined in frequently used packages (like io, fmt) are included. Interfaces that have significant importance are also included.

All of the following information is based on go version go1.8.3 darwin/amd64.

tscholl2

package main

import (
	"crypto/aes"
	"crypto/cipher"
	"crypto/rand"
	"crypto/sha256"
	"encoding/hex"
	"fmt"
	"strings"

brson

Edit: This list is now maintained in the rust-anthology repo.

• Introduction
  • Understanding Over Guesswork
  • An Alternative Introduction to Rust
  • Rust and CSV Parsing
• Ownership
  • Where Rust Really Shines
  • Rust Means Never Having to Close a Socket
• The Problem with Single-threaded Shared Mutability

rkravchik

// newUUID generates a random UUID according to RFC 4122
func newUUID() (string, error) {
	uuid := make([]byte, 16)
	n, err := io.ReadFull(rand.Reader, uuid)
	if n != len(uuid) || err != nil {
		return "", err
	}
	// variant bits; see section 4.1.1
	uuid[8] = uuid[8]&^0xc0 | 0x80
	// version 4 (pseudo-random); see section 4.1.3