Function BigToBase62

types.go:65–89

return 11 chars base 62 representation of a big int base chars are 0-9 a-z A-Z

(num *big.Int)

// return 11 chars base 62 representation of a big int
// base chars are 0-9 a-z A-Z
func BigToBase62(num *big.Int) string {
	digits := []byte{}
	n := big.NewInt(0)
	n.Add(n, num)
	zero := big.NewInt(0)
	base := big.NewInt(62)
	for {
		mod := big.NewInt(0)
		n, mod = n.DivMod(n, base, mod)
		mBytes := mod.Bytes()
		if len(mBytes) == 0 {
			digits = append(digits, 0)
		} else {
			digits = append(digits, mod.Bytes()[0])
		}
		if n.Cmp(zero) == 0 {
			break
		}
	}
	l := len(digits)
	for i := 0; i < 11-l; i++ {
		digits = append(digits, 0)
	}
	return base62DigitsToString(digits)
}

func (h SPHash) Str() string   { return string(h[:]) }
func (h SPHash) Bytes() []byte { return h[:] }