simd_signed.rs - source
Description: Source of the Rust file `/Users/erlendbasso/.cargo/registry/src/github.com-1ecc6299db9ec823/simba-0.8.0/src/simd/simd_signed.rs`.
Keywords: rust, rustlang, rust-lang

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    use crate::simd::SimdValue;
    use num::Signed;

    /// A lane-wise generalization of [`num::Signed`](https://rust-num.github.io/num/num/trait.Signed.html) for SIMD values.
    pub trait SimdSigned: SimdValue {
        /// The absolute value of each lane of `self`.
        fn simd_abs(&self) -> Self;
        /// The absolute difference of each lane of `self`.
        ///
        /// For each lane, this zero if the lane of self is less than or equal to the corresponding lane of other
        /// otherwise the difference between the lane of self and the lane of other is returned.
        fn simd_abs_sub(&self, other: &Self) -> Self;
        /// The signum of each lane of `Self`.
        fn simd_signum(&self) -> Self;
        /// Tests which lane is positive.
        fn is_simd_positive(&self) -> Self::SimdBool;
        /// Tests which lane is negative.
        fn is_simd_negative(&self) -> Self::SimdBool;
    }

    impl<T: Signed + SimdValue<SimdBool = bool>> SimdSigned for T {
        #[inline(always)]
        fn simd_abs(&self) -> Self {
            self.abs()
        }

        #[inline(always)]
        fn simd_abs_sub(&self, other: &Self) -> Self {
            self.abs_sub(other)
        }

        #[inline(always)]
        fn simd_signum(&self) -> Self {
            self.signum()
        }

        #[inline(always)]
        fn is_simd_positive(&self) -> Self::SimdBool {
            self.is_positive()
        }

        #[inline(always)]
        fn is_simd_negative(&self) -> Self::SimdBool {
            self.is_negative()
        }
    }