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    //! This module provides useful traits that were deprecated in rust

    // Note copied from the stdlib under MIT license

    use num_traits::{Bounded, Num, NumCast};
    use std::ops::AddAssign;

    /// Primitive trait from old stdlib
    pub trait Primitive: Copy + NumCast + Num + PartialOrd<Self> + Clone + Bounded {}

    impl Primitive for usize {}
    impl Primitive for u8 {}
    impl Primitive for u16 {}
    impl Primitive for u32 {}
    impl Primitive for u64 {}
    impl Primitive for isize {}
    impl Primitive for i8 {}
    impl Primitive for i16 {}
    impl Primitive for i32 {}
    impl Primitive for i64 {}
    impl Primitive for f32 {}
    impl Primitive for f64 {}

    /// An Enlargable::Larger value should be enough to calculate
    /// the sum (average) of a few hundred or thousand Enlargeable values.
    pub trait Enlargeable: Sized + Bounded + NumCast {
        type Larger: Primitive + AddAssign + 'static;

        fn clamp_from(n: Self::Larger) -> Self {
            // Note: Only unsigned value types supported.
            if n > NumCast::from(Self::max_value()).unwrap() {
                Self::max_value()
            } else {
                NumCast::from(n).unwrap()
            }
        }
    }

    impl Enlargeable for u8 {
        type Larger = u32;
    }
    impl Enlargeable for u16 {
        type Larger = u32;
    }
    impl Enlargeable for u32 {
        type Larger = u64;
    }

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