File: generic-cast-pointer-width.rs

package info (click to toggle)
rustc-web 1.78.0%2Bdfsg1-2~deb12u3
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,245,420 kB
  • sloc: xml: 147,985; javascript: 18,022; sh: 11,083; python: 10,265; ansic: 6,172; cpp: 5,023; asm: 4,390; makefile: 4,269
file content (21 lines) | stat: -rw-r--r-- 483 bytes parent folder | download | duplicates (5) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
 
//@ run-pass
#![feature(repr_simd, intrinsics)]

extern "rust-intrinsic" {
    fn simd_cast<T, U>(x: T) -> U;
}

#[derive(Copy, Clone)]
#[repr(simd)]
struct V<T>([T; 4]);

fn main() {
    let u = V::<usize>([0, 1, 2, 3]);
    let uu32: V<u32> = unsafe { simd_cast(u) };
    let ui64: V<i64> = unsafe { simd_cast(u) };

    for (u, (uu32, ui64)) in u.0.iter().zip(uu32.0.iter().zip(ui64.0.iter())) {
        assert_eq!(*u as u32, *uu32);
        assert_eq!(*u as i64, *ui64);
    }
}