Struct Exponential

#[non_exhaustive]
pub struct Exponential {
    pub num_finite_buckets: i32,
    pub growth_factor: f64,
    pub scale: f64,
}

Specifies an exponential sequence of buckets that have a width that is proportional to the value of the lower bound. Each bucket represents a constant relative uncertainty on a specific value in the bucket.

There are num_finite_buckets + 2 (= N) buckets. Bucket i has the following boundaries:

Upper bound (0 <= i < N-1): scale * (growth_factor ^ i).

Lower bound (1 <= i < N): scale * (growth_factor ^ (i - 1)).

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

num_finite_buckets: i32

Must be greater than 0.

growth_factor: f64

Must be greater than 1.

scale: f64

Must be greater than 0.

Implementations

impl Exponential

pub fn set_num_finite_buckets<T: Into<i32>>(self, v: T) -> Self

Sets the value of num_finite_buckets.

pub fn set_growth_factor<T: Into<f64>>(self, v: T) -> Self

Sets the value of growth_factor.

pub fn set_scale<T: Into<f64>>(self, v: T) -> Self

Sets the value of scale.

Trait Implementations

impl Clone for Exponential

fn clone(&self) -> Exponential

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Exponential

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

Formats the value using the given formatter.

impl Default for Exponential

fn default() -> Exponential

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Exponential

where Exponential: Default,

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Message for Exponential

fn typename() -> &'static str

The typename of this message.

impl PartialEq for Exponential

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl Serialize for Exponential

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Exponential