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Added currency converting

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This commit is contained in:
obscuren 2014-02-25 11:20:24 +01:00
parent b30b9ab8cb
commit c7e73ba12d
2 changed files with 52 additions and 0 deletions
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35
ethutil/common.go Normal file
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package ethutil
import (
"fmt"
"math/big"
)
var (
Ether = BigPow(10, 18)
Finney = BigPow(10, 15)
Szabo = BigPow(10, 12)
Vito = BigPow(10, 9)
Turing = BigPow(10, 6)
Eins = BigPow(10, 3)
Wei = big.NewInt(1)
)
func CurrencyToString(num *big.Int) string {
switch {
case num.Cmp(Ether) >= 0:
return fmt.Sprintf("%v Ether", new(big.Int).Div(num, Ether))
case num.Cmp(Finney) >= 0:
return fmt.Sprintf("%v Finney", new(big.Int).Div(num, Finney))
case num.Cmp(Szabo) >= 0:
return fmt.Sprintf("%v Szabo", new(big.Int).Div(num, Szabo))
case num.Cmp(Vito) >= 0:
return fmt.Sprintf("%v Vito", new(big.Int).Div(num, Vito))
case num.Cmp(Turing) >= 0:
return fmt.Sprintf("%v Turing", new(big.Int).Div(num, Turing))
case num.Cmp(Eins) >= 0:
return fmt.Sprintf("%v Eins", new(big.Int).Div(num, Eins))
}
return fmt.Sprintf("%v Wei", num)
}

17
ethutil/common_test.go Normal file
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package ethutil
import (
"fmt"
"math/big"
"testing"
)
func TestCommon(t *testing.T) {
fmt.Println(CurrencyToString(BigPow(10, 19)))
fmt.Println(CurrencyToString(BigPow(10, 16)))
fmt.Println(CurrencyToString(BigPow(10, 13)))
fmt.Println(CurrencyToString(BigPow(10, 10)))
fmt.Println(CurrencyToString(BigPow(10, 7)))
fmt.Println(CurrencyToString(BigPow(10, 4)))
fmt.Println(CurrencyToString(big.NewInt(10)))
}