core/portable-simd/crates/core_simd/src/ops/
unary.rs

1use crate::simd::{LaneCount, Simd, SimdElement, SupportedLaneCount};
2use core::ops::{Neg, Not}; // unary ops
3
4macro_rules! neg {
5    ($(impl<const N: usize> Neg for Simd<$scalar:ty, N>)*) => {
6        $(impl<const N: usize> Neg for Simd<$scalar, N>
7        where
8            $scalar: SimdElement,
9            LaneCount<N>: SupportedLaneCount,
10        {
11            type Output = Self;
12
13            #[inline]
14            #[must_use = "operator returns a new vector without mutating the input"]
15            fn neg(self) -> Self::Output {
16                // Safety: `self` is a signed vector
17                unsafe { core::intrinsics::simd::simd_neg(self) }
18            }
19        })*
20    }
21}
22
23neg! {
24    impl<const N: usize> Neg for Simd<f32, N>
25
26    impl<const N: usize> Neg for Simd<f64, N>
27
28    impl<const N: usize> Neg for Simd<i8, N>
29
30    impl<const N: usize> Neg for Simd<i16, N>
31
32    impl<const N: usize> Neg for Simd<i32, N>
33
34    impl<const N: usize> Neg for Simd<i64, N>
35
36    impl<const N: usize> Neg for Simd<isize, N>
37}
38
39macro_rules! not {
40    ($(impl<const N: usize> Not for Simd<$scalar:ty, N>)*) => {
41        $(impl<const N: usize> Not for Simd<$scalar, N>
42        where
43            $scalar: SimdElement,
44            LaneCount<N>: SupportedLaneCount,
45        {
46            type Output = Self;
47
48            #[inline]
49            #[must_use = "operator returns a new vector without mutating the input"]
50            fn not(self) -> Self::Output {
51                self ^ (Simd::splat(!(0 as $scalar)))
52            }
53        })*
54    }
55}
56
57not! {
58    impl<const N: usize> Not for Simd<i8, N>
59
60    impl<const N: usize> Not for Simd<i16, N>
61
62    impl<const N: usize> Not for Simd<i32, N>
63
64    impl<const N: usize> Not for Simd<i64, N>
65
66    impl<const N: usize> Not for Simd<isize, N>
67
68    impl<const N: usize> Not for Simd<u8, N>
69
70    impl<const N: usize> Not for Simd<u16, N>
71
72    impl<const N: usize> Not for Simd<u32, N>
73
74    impl<const N: usize> Not for Simd<u64, N>
75
76    impl<const N: usize> Not for Simd<usize, N>
77}
core/portable-simd/crates/core_simd/src/ops/unary.rs

core/portable-simd/crates/core_simd/src/ops/
unary.rs
