Trait measurements::Measurement [−] [src]

pub trait Measurement {
    fn get_base_units(&self) -> f64;
    fn from_base_units(units: f64) -> Self;
}

The Measurement trait and the implement_measurement! macro provides a common way for various measurements to be implemented.

Example

// Importing the `implement_measurement` macro from the external crate is important
#[macro_use]
extern crate measurements;
 
use measurements::Measurement;
 
struct Cubits {
    forearms: f64
}
 
impl Measurement for Cubits {
    fn get_base_units(&self) -> f64 {
        self.forearms
    }
     
    fn from_base_units(units: f64) -> Self {
        Cubits { forearms: units }
    }
}

// Invoke the macro to automatically implement Add, Sub, etc...
implement_measurement! { Cubits }

// The main function here is only included to make doc tests compile.
// You should't need it in your own code.
fn main() { }

Required Methods

fn get_base_units(&self) -> f64

fn from_base_units(units: f64) -> Self

Implementors