Golang code-google-com-p-godec-dec.Dec类(方法)实例源码

func (c Test) add(str1 string, str2 string) dec.Dec {
	dec1 := dec.Dec{}
	dec1.SetString(str1)
	dec2 := dec.Dec{}
	dec2.SetString(str2)

	result := dec.Dec{}
	result.Add(&dec1, &dec2)
	return result
}

func NewFundraiserTransaction(addr Address, value int64, time int64) (*FundraiserTransaction, error) {
	tx := &FundraiserTransaction{
		Addr: addr.Addr,
		Time: time,
	}

	// Base line amount bought from fundraiser, 1 btc gets you 100 msc
	mastercoinBought := dec.NewDecInt64((value * 100))
	mastercoinBought.Quo(mastercoinBought, dec.NewDecInt64(1e8), dec.Scale(18), dec.RoundHalfUp)

	fmt.Println("Baseline MSC Bought:", mastercoinBought)

	// Bonus amount received
	diff := dec.NewDecInt64(FundraiserEndTime - time)
	timeDifference := diff.Quo(diff, dec.NewDecInt64(604800), dec.Scale(18), dec.RoundHalfUp)

	fmt.Println("Time difference", timeDifference)

	if timeDifference.Cmp(dec.NewDecInt64(0)) > 0 {
		// bought += bought * (timediff * 0.1)

		x := new(dec.Dec)
		x.SetString("0.1")

		ratio := new(dec.Dec).Mul(timeDifference, x)
		fmt.Println("Ratio:", ratio)
		bonus := new(dec.Dec).Mul(ratio, mastercoinBought)
		bonus.Round(bonus, dec.Scale(18), dec.RoundDown)

		mastercoinBought.Add(mastercoinBought, bonus)
		mastercoinBought.Round(mastercoinBought, dec.Scale(8), dec.RoundHalfUp)
	}

	tx.Value = mastercoinBought

	Logger.Println("Created fundraiser transaction", tx)

	return tx, nil
}

func (c Test) getDec(str string) dec.Dec {
	result := dec.Dec{}
	result.SetString(str)
	return result
}

func DecFromString(input string) *dec.Dec {
	x := new(dec.Dec)
	x.SetString(input)
	return x
}

func (c MathUtil) Add(str1 string, str2 string) string {
	dec1 := dec.Dec{}
	dec1.SetString(str1)
	dec2 := dec.Dec{}
	dec2.SetString(str2)

	result := dec.Dec{}
	result.Add(&dec1, &dec2)
	return result.String()
}

/**
return x / y
*/
func (c MathUtil) Quo(str1 string, str2 string, scaler dec.Scaler, rounder dec.Rounder) string {
	dec1 := dec.Dec{}
	dec1.SetString(str1)
	dec2 := dec.Dec{}
	dec2.SetString(str2)

	result := dec.Dec{}
	result.Quo(&dec1, &dec2, scaler, rounder)
	return result.String()
}