1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
// Copyright (C) 2020-2025 glam-det authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#[derive(Clone, Copy, Default, PartialEq, PartialOrd)]
#[repr(C, align(16))]
pub(crate) struct Align16<T>(pub T);
impl<T> Align16<T> {
#[allow(dead_code)]
pub fn as_ptr(&self) -> *const T {
&self.0
}
#[allow(dead_code)]
pub fn as_mut_ptr(&mut self) -> *mut T {
&mut self.0
}
}
#[test]
fn test_align16() {
use core::{mem, ptr};
let mut a = Align16::<f32>(1.0);
assert_eq!(mem::align_of_val(&a), 16);
unsafe {
assert_eq!(ptr::read(a.as_ptr()).to_bits(), f32::to_bits(1.0));
ptr::write(a.as_mut_ptr(), -1.0);
}
assert_eq!(a.0.to_bits(), f32::to_bits(-1.0));
}