affine 0.1.0

points/affine spaces
Documentation 
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#![no_std]

use core::ops::*;

#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash)]
pub struct Point<A>(A);

impl<A: Sub<Output = A>> Point<A> {
    #[inline(always)]
    pub fn from_origin(a: A, o: A) -> Self { Point(a-o) }
}

impl<A: Add<Output = A>> Add<A> for Point<A> {
    type Output = Self;

    #[inline(always)]
    fn add(self, other: A) -> Self { Point(self.0 + other) }
}

impl<A: Sub<Output = A>> Sub<A> for Point<A> {
    type Output = Self;

    #[inline(always)]
    fn sub(self, other: A) -> Self { Point(self.0 - other) }
}

impl<A: AddAssign> AddAssign<A> for Point<A> {
    #[inline(always)]
    fn add_assign(&mut self, other: A) { self.0 += other }
}

impl<A: SubAssign> SubAssign<A> for Point<A> {
    #[inline(always)]
    fn sub_assign(&mut self, other: A) { self.0 -= other }
}

impl<A: Sub<Output = A>> Sub<Self> for Point<A> {
    type Output = A;

    #[inline(always)]
    fn sub(self, other: Self) -> Self::Output { self.0 - other.0 }
}