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Improve tests for #26114
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@ -9,7 +9,7 @@
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// except according to those terms.
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use std::mem::size_of;
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use std::mem::{size_of, align_of};
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#[repr(i8)]
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enum Ei8 {
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@ -71,14 +71,20 @@ enum Euint {
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Buint = 1
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}
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#[repr(u8)]
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enum Eu8NonCLike<T> {
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_None,
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_Some(T),
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}
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#[repr(i64)]
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enum Ei64_non_c_like<T> {
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enum Ei64NonCLike<T> {
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_None,
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_Some(T),
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}
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#[repr(u64)]
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enum Eu64_non_c_like<T> {
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enum Eu64NonCLike<T> {
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_None,
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_Some(T),
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}
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@ -94,6 +100,17 @@ pub fn main() {
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assert_eq!(size_of::<Eu64>(), 8);
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assert_eq!(size_of::<Eint>(), size_of::<isize>());
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assert_eq!(size_of::<Euint>(), size_of::<usize>());
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assert_eq!(size_of::<Ei64_non_c_like<()>>(), 8);
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assert_eq!(size_of::<Eu64_non_c_like<()>>(), 8);
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assert_eq!(size_of::<Eu8NonCLike<()>>(), 1);
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assert_eq!(size_of::<Ei64NonCLike<()>>(), 8);
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assert_eq!(size_of::<Eu64NonCLike<()>>(), 8);
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let u8_expected_size = round_up(9, align_of::<Eu64NonCLike<u8>>());
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assert_eq!(size_of::<Eu64NonCLike<u8>>(), u8_expected_size);
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let array_expected_size = round_up(28, align_of::<Eu64NonCLike<[u32; 5]>>());
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assert_eq!(size_of::<Eu64NonCLike<[u32; 5]>>(), array_expected_size);
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assert_eq!(size_of::<Eu64NonCLike<[u32; 6]>>(), 32);
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}
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// Rounds x up to the next multiple of a
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fn round_up(x: usize, a: usize) -> usize {
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((x + (a - 1)) / a) * a
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}
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