Trait Number

pub trait Number:
    Sized
    + AddAssign
    + SubAssign
    + PartialOrd
    + PartialEq
    + Copy
    + Send
    + Sync {
    // Required methods
    fn from_i64(v: i64) -> Self;
    fn into_f64(self) -> f64;
}

An interface for numbers. Used to generically model float metrics and integer metrics, i.e. Counter and IntCounter.

Required Methods

fn from_i64(v: i64) -> Self

std::convert::From<i64> for f64 is not implemented, so that we need to implement our own.

fn into_f64(self) -> f64

Convert to a f64.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl Number for f64

fn from_i64(v: i64) -> Self

fn into_f64(self) -> f64

impl Number for i64

fn from_i64(v: i64) -> Self

fn into_f64(self) -> f64

impl Number for u64

fn from_i64(v: i64) -> Self

fn into_f64(self) -> f64

Implementors