RoundUp, RoundCeil, RoundDown etc do not rescale the number as Round does

[ckritzinger]

x.Round(n) will rescale the number so that the coefficient contains exactly n digits

However x.RoundUp(n) and seemingly RoundCeil, RoundDown, etc do not exhibit the same behaviour.

amount, _ := decimal.NewFromString("0.01230000000000000000000000000000")
fmt.Printf("amount.RoundUp coefficient 64: %v\n", amount.RoundUp(4).CoefficientInt64())
fmt.Printf("amount.Round coefficient 64: %v\n", amount.Round(4).CoefficientInt64())

// amount.RoundUp coefficient 64: -2609795702905110528
// amount.Round coefficient 64: 123

Is this expected behaviour?

[mwoss]

Thanks for the report! I'll take a look at that, but at first glance, it looks like an inconsistent behavior that should be fixed. :3