v0.4.0

Random functionv0.1.0

Source
A version 4 UUID drawn from the operating system's entropy.
pub func Random() -> Uuid ! EntropyError

Fails with why entropy was unavailable rather than producing a zero-filled UUID with the version bits set, which would be a valid-looking identifier that is entirely predictable.

Returns: a version 4 value drawn from the system's generator, or why entropy was unavailable

Related

RandomFromBytes

pub func RandomFromBytes(bytes: byte[..]) -> Uuid

A version 4 UUID built from sixteen bytes the caller supplies. For reproducing a UUID from a recorded seed, or for drawing from a generator other than the system's. The version and variant bits are set regardless of what the bytes say, so the result is always a well-formed version 4 UUID.

Source

Parameters

NameTypeDescription
bytesbyte[..]sixteen bytes to take as the value, in big-endian order

Returns: those bytes with the version and variant fields set for version 4

Uuid

A universally unique identifier: sixteen bytes in the standard's own order.

Text form

Reading and writing a UUID in its canonical and URN text forms.

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