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//! Work in progress
//!
//! module to represent numbers.
/// Fix point number.
#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
pub struct FixedPointNumber<I, D>
where
I: num_traits::sign::Signed + std::cmp::Ord + Copy,
D: num_traits::sign::Unsigned + std::cmp::Ord + Copy,
{
integer: I,
decimal: D,
}
impl<I, D> FixedPointNumber<I, D>
where
I: num_traits::sign::Signed + std::cmp::Ord + Copy,
D: num_traits::sign::Unsigned + std::cmp::Ord + Copy,
{
/// Get tje integer part of the number
pub const fn integer(&self) -> I {
self.integer
}
/// Get the decimal part of the number as it is stored (as raw data)
pub const fn decimal(&self) -> D {
self.decimal
}
}
/// Fixe point number represented by i32 for the integer part and 128 bits (16 bytes) as the decimal part
pub type I32U128 = FixedPointNumber<i32, u128>;
/*
impl<I, D> std::ops::Neg for FixedPointNumber<I, D>
where I: num_traits::sign::Signed + std::cmp::Ord + Copy,
D : num_traits::sign::Unsigned + std::cmp::Ord + Copy,
{
type Output = Self;
fn neg(mut self) -> Self::Output {
self.integer = - self.integer;
if self.decimal != 0 {
self.integer += 1;
self.decimal = D::MAX - self.decimal + 1;
}
return self;
}
}
*/
/*
impl<I, D> num_traits::Num for FixedPointNumber<I, D>
where I: num_traits::sign::Signed + std::cmp::Ord + Copy,
D : num_traits::sign::Unsigned + std::cmp::Ord + Copy,
{
}
impl<I, D> num_traits::real::Real for FixedPointNumber<I, D>
where I: num_traits::sign::Signed + std::cmp::Ord + Copy,
D : num_traits::sign::Unsigned + std::cmp::Ord + Copy,
{
fn min_value() -> Self {
Self {
integer: I::MIN,
decimal: D::MIN,
}
}
fn max_value() -> Self {
Self {
integer: I::MAX,
decimal: D::MAX,
}
}
fn epsilon() -> Self{
Self {
integer: 0,
decimal: 1,
}
}
fn min_positive_value() -> Self{
Self {
integer: 0,
decimal: 1,
}
}
fn floor(self) -> Self{
Self {
integer: self.integer,
decimal: 0,
}
}
fn ceil(self) -> Self {
let mut integer = self.integer;
if self.decimal > 0 {
integer += 1
}
Self {
integer,
decimal: 0,
}
}
fn round(self) -> Self {
let mut integer = self.integer;
if self.decimal >= D::MAX / 2 {
integer += 1
}
Self {
integer,
decimal: 0,
}
}
}
*/