hallazzang

import (
	"log"
	"time"
)

func main() {
	const d = 3 * time.Second
	
	t := time.NewTimer(0)
	defer t.Stop()

hallazzang

func NewTicker(d time.Duration) *time.Ticker {
	ticker := time.NewTicker(d)
	oc := ticker.C
	nc := make(chan time.Time, 1)
	go func() {
		nc <- time.Now()
		for t := range oc {
			nc <- t
		}
	}()

hallazzang

sdk.Int

• maxBitLen = 256
• positiveMax = 115792089237316195423570985008687907853269984665640564039457584007913129639935(78 digits)
• negativeMin = -115792089237316195423570985008687907853269984665640564039457584007913129639935(78 digits)

sdk.Dec

• maxDecBitLen = 256 + 60 = 316
• positiveMax = 133499189745056880149688856635597007162669032647290798121690100488888732861290.034376435130433535(78 + 18 digits)

hallazzang

import (
	"errors"
	"net"
)

func IsProxyError(err error) bool {
	var operr *net.OpError
	if errors.As(err, &operr) {
		if operr.Op == "proxyconnect" {
			return true

hallazzang

#!/bin/bash

if [ -z "$1" ]; then
  echo "usage: ./install.sh <package name>"
  exit 0
fi

echo "Installing $1..."

tar xf "$1.tar.gz"

hallazzang

func DumpConfig(s interface{}) {
	var dump func(interface{}, int)
	dump = func(s interface{}, level int) {
		e := reflect.ValueOf(s)
		t := e.Type()
		for i := 0; i < e.NumField(); i++ {
			f := e.Field(i)
			ft := t.Field(i)
			if !ft.Anonymous {
				fmt.Printf("%s%s:", strings.Repeat("  ", level), tagName(ft))

hallazzang

type Pool struct {
	n   int
	run func(context.Context)
	ctx    context.Context
	cancel context.CancelFunc
	wg     sync.WaitGroup
}

func NewPool(n int, run func(context.Context)) *Pool {
	ctx, cancel := context.WithCancel(context.Background())

hallazzang

package main

import (
	"fmt"
	"unicode"
)

type TrieNode struct {
	isEndOfWord   bool
	children [26]*TrieNode

hallazzang

package main

import (
	"fmt"
	"math"
	"math/cmplx"
)

func comp(v int) complex128 {
	return complex(float64(v), 0)

hallazzang

package main

import (
	"os/exec"
	"unsafe"

	"golang.org/x/sys/windows"
)

// We use this struct to retreive process handle(which is unexported)