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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/// Supplies a saturating multiplication.
pub trait SaturatingMul<Rhs = Self> {
    type Output;

    fn saturating_mul(self, rhs: Rhs) -> Self::Output;
}

macro_rules! impl_saturating_mul {
    ($($ty:ty),+ $(,)?) => {
        $(impl SaturatingMul for $ty {
            type Output = $ty;

            #[inline]
            fn saturating_mul(self, rhs: Self) -> Self::Output {
                <$ty>::saturating_mul(self, rhs)
            }
        })+
    };
}

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