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#![allow(clippy::needless_lifetimes)]
#[rustversion::since(1.51)]
#[multiversion::multiversion(targets(
"x86_64+avx2+avx",
"x86_64+avx",
"x86+avx2+avx",
"x86+avx",
"x86+sse"
))]
fn pass<'a>(x: &'a i32) -> &'a i32 {
x
}
#[rustversion::since(1.51)]
#[multiversion::multiversion(targets(
"x86_64+avx2+avx",
"x86_64+avx",
"x86+avx2+avx",
"x86+avx",
"x86+sse"
))]
fn double<'a, T: Copy + std::ops::AddAssign, const N: usize>(x: &'a mut [T; N]) -> &'a mut T {
assert!(!x.is_empty());
for v in x.iter_mut() {
*v += *v;
}
&mut x[0]
}
mod test {
#[rustversion::since(1.51)]
#[test]
fn generics() {
let mut x = [0u32, 2u32, 4u32];
let mut y = [0u64, 2u64, 4u64];
*super::double(&mut x) = 1;
*super::double(&mut y) = 2;
assert_eq!(x, [1u32, 4u32, 8u32]);
assert_eq!(y, [2u64, 4u64, 8u64]);
}
#[rustversion::since(1.51)]
#[test]
fn lifetimes() {
let a = 42;
assert_eq!(super::pass(&a), &a);
}
}
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