dcrd/dcrutil/example_test.go
Dave Collins 1012d90f4b
dcrutil: Remove all code related to Address.
This removes all code related to defining and implementing the Address
type since that is now handled by the stdaddr package.
2021-04-15 16:58:35 -05:00

80 lines
1.7 KiB
Go

// Copyright (c) 2015-2021 The Decred developers
// Use of this source code is governed by an ISC
// license that can be found in the LICENSE file.
package dcrutil_test
import (
"fmt"
"math"
"github.com/decred/dcrd/dcrutil/v4"
)
func ExampleAmount() {
a := dcrutil.Amount(0)
fmt.Println("Zero Atom:", a)
a = dcrutil.Amount(1e8)
fmt.Println("100,000,000 Atoms:", a)
a = dcrutil.Amount(1e5)
fmt.Println("100,000 Atoms:", a)
// Output:
// Zero Atom: 0 DCR
// 100,000,000 Atoms: 1 DCR
// 100,000 Atoms: 0.001 DCR
}
func ExampleNewAmount() {
amountOne, err := dcrutil.NewAmount(1)
if err != nil {
fmt.Println(err)
return
}
fmt.Println(amountOne) //Output 1
amountFraction, err := dcrutil.NewAmount(0.01234567)
if err != nil {
fmt.Println(err)
return
}
fmt.Println(amountFraction) //Output 2
amountZero, err := dcrutil.NewAmount(0)
if err != nil {
fmt.Println(err)
return
}
fmt.Println(amountZero) //Output 3
amountNaN, err := dcrutil.NewAmount(math.NaN())
if err != nil {
fmt.Println(err)
return
}
fmt.Println(amountNaN) //Output 4
// Output: 1 DCR
// 0.01234567 DCR
// 0 DCR
// invalid coin amount
}
func ExampleAmount_unitConversions() {
amount := dcrutil.Amount(44433322211100)
fmt.Println("Atom to kCoin:", amount.Format(dcrutil.AmountKiloCoin))
fmt.Println("Atom to Coin:", amount)
fmt.Println("Atom to MilliCoin:", amount.Format(dcrutil.AmountMilliCoin))
fmt.Println("Atom to MicroCoin:", amount.Format(dcrutil.AmountMicroCoin))
fmt.Println("Atom to Atom:", amount.Format(dcrutil.AmountAtom))
// Output:
// Atom to kCoin: 444.333222111 kDCR
// Atom to Coin: 444333.222111 DCR
// Atom to MilliCoin: 444333222.111 mDCR
// Atom to MicroCoin: 444333222111 μDCR
// Atom to Atom: 44433322211100 Atom
}