# [Ride v4 and v3] Converting functions

⚠️ This is the documentation for the Standard library version 4 and 3. We recommend to use version 6. Go to version 6

Name	Description	Complexity
addressFromPublicKey(ByteVector): Address	Gets the corresponding address of the account public key	82 for Standard Library version 3 63 for Standard Library version 4
parseInt(String): Int\|Unit	Converts the string representation of a number to its integer equivalent	20 for Standard Library version 3 2 for Standard Library version 4
parseIntValue(String): Int	Converts the string representation of a number to its integer equivalent. Fails if the string cannot be parsed	20 for Standard Library version 3 2 for Standard Library version 4
toBytes(Boolean): ByteVector	Converts a boolean value to an array of bytes	1
toBytes(Int): ByteVector	Converts an integer to an array of bytes	1
toBytes(String): ByteVector	Converts a string to an array of bytes	1 for Standard Library version 3 8 for Standard Library version 4
toInt(ByteVector): Int	Converts an array of bytes to an integer	10 for Standard Library version 3 1 for Standard Library version 4
toInt(ByteVector, Int): Int	Converts an array of bytes to an integer starting from a certain index	10 for Standard Library version 3 1 for Standard Library version 4
toString(Address): String	Converts an array of bytes of an address to a string	10
toString(Boolean): String	Converts a boolean value to a string	1
toString(Int): String	Converts an integer to a string	1
toUtf8String(ByteVector): String	Converts an array of bytes to a UTF-8 string	20 for Standard Library version 3 7 for Standard Library version 4
transferTransactionFromProto(ByteVector): TransferTransaction\|Unit	Deserializes transfer transaction	5

# addressFromPublicKey(ByteVector): Address

Gets the corresponding address of the account public key.

There is no public key size check in version 5 and below.

addressFromPublicKey(publicKey: ByteVector): Address

For a description of the return value, see the Address article.

# Parameters

Parameter	Description
`publicKey`: ByteVector	Public key

# Examples

let address = addressFromPublicKey(base58'J1t6NBs5Hd588Dn7mAPytqkhgeBshzv3zecScfFJWE2D')

# parseInt(String): Int|Unit

Converts the string representation of a number to its integer equivalent.

parseInt(str: String): Int|Unit

# Parameters

Parameter	Description
`str`: String	String to parse

# Examples

parseInt("10") # Returns 10
parseInt("010") # Returns 10
parseInt("Ride") # Returns Unit
parseInt("10.30") # Returns Unit

# parseIntValue(String): Int

Converts the string representation of a number to its integer equivalent.

Fails if the string cannot be parsed.

parseIntValue(str: String): Int

# Parameters

Parameter	Description
`str`: String	String to parse

# Examples

parseIntValue("10") # Returns 10
parseIntValue("010") # Returns 10
parseIntValue("Ride") # Error while parsing string to integer
parseIntValue("10.30") # Error while parsing string to integer
parseIntValue("20 WAVES") # Error while parsing string to integer

# toBytes(Boolean): ByteVector

Converts a boolean value to an array of bytes.

toBytes(b: Boolean): ByteVector

# Parameters

Parameter	Description
`b`: Boolean	Boolean to convert

# Examples

toBytes(true) # Returns 2
toBytes(false) # Returns 1

# toBytes(Int): ByteVector

Converts an integer to an array of bytes.

toBytes(n: Int): ByteVector

# Parameters

Parameter	Description
`n`: Int	Integer to convert

# Examples

toBytes(10) # Returns 1111111B

# toBytes(String): ByteVector

Converts a string to an array of bytes.

toBytes(s: String): ByteVector

# Parameters

Parameter	Description
`s`: String	String to convert

# Examples

toBytes("Ride") # Returns 37BPKA

# toInt(ByteVector): Int

Converts an array of bytes to an integer.

toInt(bin: ByteVector) : Int

# Parameters

Parameter	Description
`bin`: ByteVector	Array of bytes to convert

# Examples

toInt(bytes) # Returns 10

# toInt(ByteVector, Int): Int

Converts an array of bytes to an integer starting from a certain index.

toInt(bin: ByteVector, offset: Int): Int

# Parameters

Parameter	Description
`bin`: ByteVector	Array of bytes to convert
`offset`: Int	Index to start from

# Examples

let bytes = toBytes("Ride on Waves")
toInt(bytes, 2) # Returns 7234224039401641825
toInt(bytes, 6) # Index out of bounds

# toString(Address): String

Converts an array of bytes of an address to a string.

toString(Address: Address): String

# Parameters

Parameter	Description
`Address`: Address	Address to convert

# Examples

let address =Address(base58'3NADPfTVhGvVvvRZuqQjhSU4trVqYHwnqjF')
toString(address) # Returns "3NADPfTVhGvVvvRZuqQjhSU4trVqYHwnqjF"

# toString(Boolean): String

Converts a boolean value to a string.

toString(b: Boolean): String

# Parameters

Parameter	Description
`b`: Boolean	Boolean to convert

# Examples

toString(true) # Returns "true"
toString(false) # Returns "false"

# toString(Int): String

Converts an integer to a string.

toString(n: Int): String

# Parameters

Parameter	Description
`n`: Int	Integer to convert

# Examples

toString(10) # Returns "10"

# toUtf8String(ByteVector): String

Converts an array of bytes to a UTF-8 string.

toUtf8String(u: ByteVector): String

# Parameters

Parameter	Description
`u`: ByteVector	Array of bytes to convert

# Examples

let bytes = toBytes("Ride on Waves")
toUtf8String(bytes) # Returns "Ride on Waves"

# transferTransactionFromProto

Deserializes transfer transaction: converts protobuf-encoded binary format specified in transaction.proto to a TransferTransaction structure. Returns unit if deserialization failed.

⚠️ The functions is added in Standard library version 4.

transferTransactionFromProto(b: ByteVector): TransferTransaction|Unit

For a description of the return value, see the TransferTransaction article.

# Parameters

Parameter	Description
`b`: ByteVector	Transfer transaction in protobuf-encoded binary format

# Examples

let transfer = base64'Cr4BCFQSIA7SdnwUqEBY+k4jUf9sCV5+xj0Ry/GYuwmDMCdKTdl3GgQQoI0GIPLIyqL6LSgDwgaHAQoWChT+/s+ZWeOWzh1eRnhdRL3Qh9bxGRIkCiBO/wEBhwH/f/+bAWBRMv+A2yiAOUeBc9rY+UR/a4DxKBBkGkcaRYCcAQAB//9/AX9//0695P8EiICAfxgBgIkefwHYuDmA//83/4ABJgEBAf8d9N+8AAERyo1/j3kAGn/SAb7YIH8y/4CAXg=='
let x = match transferTransactionFromProto(transfer) {
    case ttx:TransferTransaction =>
        ttx.amount # 3500000000
    case _ => throw("Can't find transaction")
}