numaxiom 0.0.2

Lightweight numeric marker traits for ranges/signs plus constants and ops; std by default, no_std optional.
Documentation 
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use super::HasTwo;

/// Provides the value `2` as an associated constant.
pub trait TwoConst: HasTwo {
    const TWO: Self;
}

macro_rules! impl_two_const {
    ($($ty:ty),+ $(,)?) => {
        $(
            impl TwoConst for $ty {
                const TWO: Self = 2 as $ty;
            }
        )+
    };
}

impl_two_const!(i8, i16, i32, i64, i128, isize);
impl_two_const!(u8, u16, u32, u64, u128, usize);
impl_two_const!(f32, f64);