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use std::ops::{Add, Sub};
use std::fmt::{Debug};
pub trait Scalar : Copy + Add<Output = Self> + Sub<Output = Self> + Debug + Default + PartialOrd {}
impl Scalar for i8 {}
impl Scalar for i16 {}
impl Scalar for i32 {}
impl Scalar for i64 {}
impl Scalar for i128 {}
impl Scalar for isize {}
#[cfg(feature = "unsigned-scalar")] impl Scalar for u8 {}
#[cfg(feature = "unsigned-scalar")] impl Scalar for u16 {}
#[cfg(feature = "unsigned-scalar")] impl Scalar for u32 {}
#[cfg(feature = "unsigned-scalar")] impl Scalar for u64 {}
#[cfg(feature = "unsigned-scalar")] impl Scalar for u128 {}
#[cfg(feature = "unsigned-scalar")] impl Scalar for usize {}
impl Scalar for f32 {}
impl Scalar for f64 {}