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README

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My util library

Documentation

Index

• Variables
• func Decimal2IP(n int64) string
• func Decimal2IP0(n int64) (ip string, err error)
• func Decimal2IP1(n int64) string
• func Distance(lng1, lat1, lng2, lat2 float64) float64
• func IP2Decimal(ipstr string) (int64, error)
• func IP2Decimal0(ip string) (n int64, err error)
• func IP2Decimal1(ipstr string) (int64, error)
• func IsBankCard(n int64) (ok bool, err error)
• func IsChineseID(s string) (ok bool, err error)
• func IsChineseWords(words string) (ok bool, err error)
• func IsEmail(email string) (ok bool, err error)
• func JSON(w http.ResponseWriter, v interface{})
• func NewBytesPool(n int) sync.Pool
• func Random(min, max int64) int64
• func RandomNumber() (i int64)
• func ReadJSON(r *http.Request, o interface{}) error
• type CIDRInfo
  • func CIDR(cidr string) (c *CIDRInfo, err error)

Variables

var BP12 = NewBytesPool(12)

var BP16 = NewBytesPool(16)

var BP2 = NewBytesPool(2)

var BP20 = NewBytesPool(20)

var BP2048 = NewBytesPool(2048)

var BP32 = NewBytesPool(32)

var BP4 = NewBytesPool(4)

var BP40 = NewBytesPool(40)

var BP65507 = NewBytesPool(65507)

Functions

func Decimal2IP

func Decimal2IP(n int64) string

Decimal2IP transform a decimal IP to x.x.x.x format.

func Decimal2IP0

func Decimal2IP0(n int64) (ip string, err error)

Decimal2IP0 transform a decimal IP to x.x.x.x format. ref: https://zh.wikipedia.org/wiki/IPv4

func Decimal2IP1

func Decimal2IP1(n int64) string

Decimal2IP1 transform a decimal IP to x.x.x.x format.

func Distance

func Distance(lng1, lat1, lng2, lat2 float64) float64

return m

func IP2Decimal

func IP2Decimal(ipstr string) (int64, error)

IP2Decimal transform ip format like x.x.x.x to decimal.

func IP2Decimal0

func IP2Decimal0(ip string) (n int64, err error)

IP2Decimal0 transform ip format like x.x.x.x to decimal. ref: https://zh.wikipedia.org/wiki/IPv4

func IP2Decimal1

func IP2Decimal1(ipstr string) (int64, error)

IP2Decimal1 transform ip format like x.x.x.x to decimal.

func IsBankCard

func IsBankCard(n int64) (ok bool, err error)

IsBankCard determine whether it is bankcard number

func IsChineseID

func IsChineseID(s string) (ok bool, err error)

IsChineseID determine whether it is Chinese ID Card Number

func IsChineseWords

func IsChineseWords(words string) (ok bool, err error)

IsChineseWords determine whether it is Chinese words Notice: NOT ALL

func IsEmail

func IsEmail(email string) (ok bool, err error)

IsEmail determine whether it is email address

func JSON

func JSON(w http.ResponseWriter, v interface{})

func NewBytesPool

func NewBytesPool(n int) sync.Pool

func Random

func Random(min, max int64) int64

Random used to get a random number between [min, max)

func RandomNumber

func RandomNumber() (i int64)

RandomNumber used to get a random number

func ReadJSON

func ReadJSON(r *http.Request, o interface{}) error

Types

type CIDRInfo

type CIDRInfo struct {
	First   string
	Last    string
	Block   int64
	Network string
	Count   int64
}

CIDRInfo is the struct of CIDR

func CIDR

func CIDR(cidr string) (c *CIDRInfo, err error)

CIDR return *CIDRInfo from like this x.x.x.x/x ref: http://goo.gl/AEUIi8