Struct Point 

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

A totally ordered value, representing a point within an exponential bucket.

Values to construct points from can be computed by the midpoint function.

This type is a plain wrapper over f64, but implements the necessary ordering traits needed to store them in BTreeMaps or HashMaps.

Implementations

impl Point

pub const fn new(value: f64) -> Self

Treat a midpoint f64 value as a Point.

pub fn try_from_str(s: &str) -> Result<Self, ParsePointError>

Parse a Point from its textual representation.

pub const fn get(&self) -> f64

Get the value of this midpoint as an f64.

pub const fn is_sign_positive(&self) -> bool

Whether the sign of the midpoint is positive.

pub const fn is_sign_negative(&self) -> bool

Whether the sign of the midpoint is negative.

pub const fn is_zero_bucket(&self) -> bool

Whether the midpoint is for the zero bucket.

If this method returns true, then [self.is_positive_bucket] and [self.is_negative_bucket] will both return false.

pub const fn is_positive_bucket(&self) -> bool

Whether the midpoint belongs to a positive bucket.

If this method returns true, then [self.is_zero_bucket] and [self.is_negative_bucket] will both return false.

pub const fn is_negative_bucket(&self) -> bool

Whether the midpoint belongs to a negative bucket.

If this method returns true, then [self.is_zero_bucket] and [self.is_positive_bucket] will both return false.

pub const fn is_indexable(&self) -> bool

Whether the midpoint can be represented as an exponential bucket index.

A midpoint is considered indexable if:

1. It is not 0 or -0.
2. It is finite (not infinity or NaN).

Trait Implementations

impl Clone for Point

fn clone(&self) -> Point

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Point

impl Debug for Point

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

Formats the value using the given formatter.

impl Display for Point

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

Formats the value using the given formatter.

impl Eq for Point

impl From<Point> for f64

fn from(value: Point) -> Self

Converts to this type from the input type.

impl From<f64> for Point

fn from(value: f64) -> Self

Converts to this type from the input type.

impl FromStr for Point

type Err = ParsePointError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl<'v> FromValue<'v> for Point

fn from_value(value: Value<'v>) -> Option<Self>

where Self: Sized,

Perform the conversion.

impl Hash for Point

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher.

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

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for Point

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,

Restrict a value to a certain interval.

impl PartialEq for Point

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for Point

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl Serialize for Point

Available on crate feature serde only.

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl ToValue for Point

fn to_value(&self) -> Value<'_>

Perform the conversion.

impl Value for Point

Available on crate feature sval only.

fn stream<'sval, S: Stream<'sval> + ?Sized>( &'sval self, stream: &mut S, ) -> Result

Stream this value through a Stream.

fn tag(&self) -> Option<Tag>

Get the tag of this value, if there is one.

fn to_bool(&self) -> Option<bool>

Try convert this value into a boolean.

fn to_f32(&self) -> Option<f32>

Try convert this value into a 32bit binary floating point number.

fn to_f64(&self) -> Option<f64>

Try convert this value into a 64bit binary floating point number.

fn to_i8(&self) -> Option<i8>

Try convert this value into a signed 8bit integer.

fn to_i16(&self) -> Option<i16>

Try convert this value into a signed 16bit integer.

fn to_i32(&self) -> Option<i32>

Try convert this value into a signed 32bit integer.

fn to_i64(&self) -> Option<i64>

Try convert this value into a signed 64bit integer.

fn to_i128(&self) -> Option<i128>

Try convert this value into a signed 128bit integer.

fn to_u8(&self) -> Option<u8>

Try convert this value into an unsigned 8bit integer.

fn to_u16(&self) -> Option<u16>

Try convert this value into an unsigned 16bit integer.

fn to_u32(&self) -> Option<u32>

Try convert this value into an unsigned 32bit integer.

fn to_u64(&self) -> Option<u64>

Try convert this value into an unsigned 64bit integer.

fn to_u128(&self) -> Option<u128>

Try convert this value into an unsigned 128bit integer.

fn to_text(&self) -> Option<&str>

Try convert this value into a text string.

fn to_binary(&self) -> Option<&[u8]>

Try convert this value into a bitstring.