38 lines
798 B
Go
38 lines
798 B
Go
// Copyright (C) 2019 Storj Labs, Inc.
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// See LICENSE for copying information
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package currency
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import (
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"fmt"
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)
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// USD describes USD currency.
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type USD struct {
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cents int
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}
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// Dollars converts dollars to USD amount.
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func Dollars(dollars int) USD {
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return USD{dollars * 100}
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}
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// Cents converts cents to USD amount.
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func Cents(cents int) USD {
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return USD{cents}
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}
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// Cents returns amount in cents.
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func (usd USD) Cents() int { return usd.cents }
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// Add adds two usd values and returns the result.
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func (usd USD) Add(b USD) USD { return USD{usd.cents + b.cents} }
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// String returns the value in dollars.
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func (usd USD) String() string {
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if usd.cents < 0 {
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return fmt.Sprintf("-%d.%02d", -usd.cents/100, -usd.cents%100)
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}
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return fmt.Sprintf("%d.%02d", usd.cents/100, usd.cents%100)
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}
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