package encoding

import "encoding/binary"

// Uint64ToBigEndian - marshals uint64 to a bigendian byte slice so it can be
// sorted
func Uint64ToBigEndian(i uint64) []byte {
	b := make([]byte, 8)
	binary.BigEndian.PutUint64(b, i)
	return b
}

// BigEndianToUint64 returns an uint64 from big endian encoded bytes. If
// encoding is empty, zero is returned.
func BigEndianToUint64(bz []byte) uint64 {
	if len(bz) == 0 {
		return 0
	}

	return binary.BigEndian.Uint64(bz)
}