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33 lines
871 B
Rust
33 lines
871 B
Rust
//@ run-pass
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//@ reference: layout.aggregate.struct-offsets
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//@ edition: 2018
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#[repr(align(64))]
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#[derive(Copy, Clone)]
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#[allow(dead_code)]
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pub struct Overaligned(u8);
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#[allow(dead_code)]
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union ReprRustUnion {
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x: i32,
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y: [u32; 4],
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z: f32,
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a: u128,
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b: Overaligned,
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}
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fn test_fields_aligned() {
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assert_eq!((core::mem::offset_of!(ReprRustUnion, x) % (core::mem::align_of::<i32>())), 0);
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assert_eq!((core::mem::offset_of!(ReprRustUnion, y) % (core::mem::align_of::<[u32; 4]>())), 0);
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assert_eq!((core::mem::offset_of!(ReprRustUnion, z) % (core::mem::align_of::<f32>())), 0);
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assert_eq!((core::mem::offset_of!(ReprRustUnion, a) % (core::mem::align_of::<u128>())), 0);
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assert_eq!(
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(core::mem::offset_of!(ReprRustUnion, b) % (core::mem::align_of::<Overaligned>())),
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0
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);
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}
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fn main() {
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test_fields_aligned();
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}
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