plugeth/bytes.go

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515 B
Go
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2014-01-03 23:32:13 +00:00
package main
import (
"bytes"
"encoding/binary"
"fmt"
)
func NumberToBytes(num uint64, bits int) []byte {
buf := new(bytes.Buffer)
err := binary.Write(buf, binary.BigEndian, num)
if err != nil {
fmt.Println("binary.Write failed:", err)
}
return buf.Bytes()[buf.Len()-(bits / 8):]
}
func BytesToNumber(b []byte) (number uint64) {
buf := bytes.NewReader(b)
err := binary.Read(buf, binary.LittleEndian, &number)
if err != nil {
fmt.Println("binary.Read failed:", err)
}
return
}