Struct bonsaidb::core::ordered_varint::Unsigned

pub struct Unsigned(_);

An unsigned integer value

This type encodes values in the range 0..2.pow(124) by using the first 4 bits to denote an unsigned byte length. This length ranges from 0..=15. The remaining 4 bits of the first byte and any additional bytes are then used to store the integer in big-endian encoding.

Trait Implementations

impl Clone for Unsigned

pub fn clone(&self) -> Unsigned

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Unsigned

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl From<u128> for Unsigned

pub fn from(value: u128) -> Unsigned

Performs the conversion.

impl From<u16> for Unsigned

pub fn from(value: u16) -> Unsigned

Performs the conversion.

impl From<u32> for Unsigned

pub fn from(value: u32) -> Unsigned

Performs the conversion.

impl From<u64> for Unsigned

pub fn from(value: u64) -> Unsigned

Performs the conversion.

impl From<u8> for Unsigned

pub fn from(value: u8) -> Unsigned

Performs the conversion.

impl Hash for Unsigned

pub fn hash<__H>(&self, state: &mut __H) where
    __H: Hasher, 

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.

impl<'a> Key<'a> for Unsigned

type Error = Error

The error type that can be produced by either serialization or deserialization.

pub const LENGTH: Option<usize>

The size of the key, if constant.

pub fn as_big_endian_bytes(
    &'a self
) -> Result<Cow<'a, [u8]>, <Unsigned as Key<'a>>::Error>

Convert self into a Cow<[u8]> containing bytes ordered in big-endian/network byte order.

pub fn from_big_endian_bytes(
    bytes: &'a [u8]
) -> Result<Unsigned, <Unsigned as Key<'a>>::Error>

Convert a slice of bytes into Self by interpretting bytes in big-endian/network byte order.

impl Ord for Unsigned

pub fn cmp(&self, other: &Unsigned) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

Restrict a value to a certain interval.

impl PartialEq<Unsigned> for Unsigned

pub fn eq(&self, other: &Unsigned) -> bool

This method tests for self and other values to be equal, and is used by ==.

pub fn ne(&self, other: &Unsigned) -> bool

This method tests for !=.

impl PartialOrd<Unsigned> for Unsigned

pub fn partial_cmp(&self, other: &Unsigned) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl TryFrom<Unsigned> for u32

type Error = TryFromIntError

The type returned in the event of a conversion error.

pub fn try_from(
    value: Unsigned
) -> Result<u32, <u32 as TryFrom<Unsigned>>::Error>

Performs the conversion.

impl Variable for Unsigned

pub fn encode_variable<W>(&self, output: &mut W) -> Result<usize, Error> where
    W: Write, 

Encodes self into destination, returning the number of bytes written upon success.

pub fn decode_variable<R>(input: R) -> Result<Unsigned, Error> where
    R: Read, 

Decodes a variable length value from source.

fn to_variable_vec(&self) -> Result<Vec<u8, Global>, Error>

Encodes self into a new Vec<u8>.

impl Copy for Unsigned

impl Eq for Unsigned

impl StructuralEq for Unsigned

impl StructuralPartialEq for Unsigned