package serial import "encoding/hex" // ByteToHexString converts a byte into hex string. func ByteToHexString(value byte) string { return hex.EncodeToString([]byte{value}) } // BytesToUint16 deserializes a byte array to a uint16 in big endian order. The byte array must have at least 2 elements. func BytesToUint16(value []byte) uint16 { _ = value[1] // bounds check hint to compiler; see golang.org/issue/14808 return uint16(value[0])<<8 | uint16(value[1]) } // BytesToUint32 deserializes a byte array to a uint32 in big endian order. The byte array must have at least 4 elements. func BytesToUint32(value []byte) uint32 { _ = value[3] return uint32(value[0])<<24 | uint32(value[1])<<16 | uint32(value[2])<<8 | uint32(value[3]) } // BytesToInt deserializes a bytes array (of at leat 4 bytes) to an int in big endian order. func BytesToInt(value []byte) int { _ = value[3] return int(value[0])<<24 | int(value[1])<<16 | int(value[2])<<8 | int(value[3]) } // BytesToInt64 deserializes a byte array to an int64 in big endian order. The byte array must have at least 8 elements. func BytesToInt64(value []byte) int64 { _ = value[7] return int64(value[0])<<56 | int64(value[1])<<48 | int64(value[2])<<40 | int64(value[3])<<32 | int64(value[4])<<24 | int64(value[5])<<16 | int64(value[6])<<8 | int64(value[7]) } // BytesToHexString converts a byte array into hex string. func BytesToHexString(value []byte) string { m := hex.EncodedLen(len(value)) if m == 0 { return "[]" } n := 1 + m + m/2 b := make([]byte, n) hex.Encode(b[1:], value) b[0] = '[' for i, j := n-3, m-2+1; i > 0; i -= 3 { b[i+2] = ',' b[i+1] = b[j+1] b[i] = b[j] j -= 2 } b[n-1] = ']' return string(b) }