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Data Encoding

Encoding using the Skycoin Binary Encoding Format

Data

Int, Uint

All signed and unsigned integers encoded using little-endian order to bytes slice with appropriate size

• int8, uint8 - one byte
• int16, uint16 - 2 byte
• int32, uint32 - 4 byte
• int64, uint64 - 8 byte

That is obvious.

See LittleEndian and ByteOrder of encoding/binary

Float32, Float64

For float point number used IEEE 754 binary representation. Short words: float -> uint -> bytes (little-endian)

• float32 - 4 byte
• float64 - 8 byte

See math.Float32bits, math.Float32frombits and math.Float64bits, math.Float64frombits methods

String

Strings are length-prefixed, where length is represented as encoded uint32

[4 byte length][string body, or nothing if the length is zero]

Arrays

Arrays is just encoded elements one by one

Slices

Slices are length-prefixed like strings

[4 byte length][elements one by one, or nothing if the length is zero]

Structures

Structures is encoded elements from first field to last

For example

type Age uint32

type User strut {
	Age  Age
	Name string
}

should be encoded to

[4 byte of the Age]
[4 byte of the Name length][the Name in person]

That's all about data