use allocative::Allocative;
use derive_more::{Add, Div, Mul, Neg, Sub, Sum};
use serde::{Deserialize, Serialize};
use std::{fmt::Display, str::FromStr};
#[derive(
Copy,
Clone,
PartialEq,
PartialOrd,
Add,
Sub,
Mul,
Div,
Sum,
Neg,
Debug,
Deserialize,
Serialize,
Allocative,
)]
pub struct StateVariable(pub f64);
impl StateVariable {
pub const ZERO: StateVariable = StateVariable(0.0);
pub const ONE: StateVariable = StateVariable(1.0);
pub const ONE_HUNDRED: StateVariable = StateVariable(100.0);
pub const MAX: StateVariable = StateVariable(f64::MAX);
}
impl Display for StateVariable {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
write!(f, "{}", self.0)
}
}
impl From<StateVariable> for f64 {
fn from(val: StateVariable) -> Self {
val.0
}
}
impl From<&StateVariable> for f64 {
fn from(val: &StateVariable) -> Self {
val.0
}
}
impl FromStr for StateVariable {
type Err = std::io::Error;
fn from_str(s: &str) -> Result<Self, Self::Err> {
s.parse::<f64>().map(StateVariable).map_err(|e| {
let msg = format!("failure decoding state variable {s} due to: {e:}");
std::io::Error::new(std::io::ErrorKind::InvalidData, msg)
})
}
}