spark::lib::Uuid Class Reference

A 128-bit universally unique identifier (UUID). More...

#include <Uuid.h>

Public Member Functions
	Uuid ()
	Instantiates a new random uuid.
	Uuid (__m128i uuid)
	Instantiates a new uuid from a 128-bit number.
	Uuid (const uint8_t *bytes)
	Instantiates a new uuid from a byte string.
	Uuid (const std::string &bytes)
	Instantiates a new uuid from a byte string.
	Uuid (const Uuid &other)
	Uuid (Uuid &&other) noexcept
Uuid &	operator= (const Uuid &other)
Uuid &	operator= (Uuid &&other) noexcept
bool	operator== (const Uuid &other) const
bool	operator!= (const Uuid &other) const
std::string	bytes () const
	Serializes the uuid to a byte std::string (16 bytes).
std::string	str () const
	Converts the uuid to its string representation.
void	str (char *res) const
	Converts the uuid to its string representation.

Friends
std::ostream &	operator<< (std::ostream &os, const Uuid &uuid)
std::size_t	hash_value (const Uuid &obj)
	Hashes the uuid.

Detailed Description

A 128-bit universally unique identifier (UUID).

Uses Uses SIMD (Single Instruction Multiple Data) with Intel's AVX2 instruction set to generate UUIDs. UUIDs are stored as a 16-byte array, representing a 128-bit number in memory.

See: https://www.rfc-editor.org/rfc/rfc4122

Constructor & Destructor Documentation

Uuid() [1/3]

spark::lib::Uuid::Uuid ( __m128i uuid )

explicit

Instantiates a new uuid from a 128-bit number.

Parameters

uuid	The 128-bit number to use as uuid.

Uuid() [2/3]

spark::lib::Uuid::Uuid ( const uint8_t * bytes )

explicit

Instantiates a new uuid from a byte string.

Parameters

bytes

A raw array of bytes (size 16) containing the uuid.

Uuid() [3/3]

spark::lib::Uuid::Uuid ( const std::string & bytes )

explicit

Instantiates a new uuid from a byte string.

Parameters

bytes

A std::string containing the uuid.

Member Function Documentation

bytes()

std::string spark::lib::Uuid::bytes ( ) const

nodiscard

Serializes the uuid to a byte std::string (16 bytes).

Returns

The std::string containing the 16 bytes of the uuid.

str() [1/2]

std::string spark::lib::Uuid::str ( ) const

nodiscard

Converts the uuid to its string representation.

Returns

The std::string representation of the uuid.

str() [2/2]

void spark::lib::Uuid::str

(

char *

res

)

const

Converts the uuid to its string representation.

Parameters

res	A char array of size 36 to store the result in.

Friends And Related Symbol Documentation

hash_value

std::size_t hash_value ( const Uuid & obj )

friend

Hashes the uuid.

Parameters

obj	The uuid to hash.

Returns

The hashed representation of the uuid.