Struct matrix_sdk_crypto::store::caches::SequenceNumber

pub struct SequenceNumber(/* private fields */);

A numeric type that can represent an infinite ordered sequence.

It uses wrapping arithmetic to make sure we never run out of numbers. (2**64 should be enough for anyone, but it’s easy enough just to make it wrap.) Internally it uses a signed counter so that we can compare values via a subtraction. For example, suppose we’ve just overflowed from i64::MAX to i64::MIN. (i64::MAX.wrapping_sub(i64::MIN)) is -1, which tells us that i64::MAX comes before i64::MIN in the sequence.

Trait Implementations

impl Clone for SequenceNumber

fn clone(&self) -> SequenceNumber

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for SequenceNumber

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

Formats the value using the given formatter.

impl Default for SequenceNumber

fn default() -> SequenceNumber

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for SequenceNumber

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for SequenceNumber

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

Formats the value using the given formatter.

impl Ord for SequenceNumber

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

This method returns an Ordering between self and other.

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

where Self: Sized,

Compares and returns the maximum of two values.

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

where Self: Sized,

Compares and returns the minimum of two values.

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

where Self: Sized + PartialOrd,

Restrict a value to a certain interval.

impl PartialEq for SequenceNumber

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

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

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for SequenceNumber

fn partial_cmp(&self, other: &Self) -> 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 Serialize for SequenceNumber

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for SequenceNumber

impl Eq for SequenceNumber

impl StructuralPartialEq for SequenceNumber