bjoernager/rust
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Document Pu128.

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And move the `repr` line after the `derive` line, where it's harder to
overlook. (I overlooked it initially, and didn't understand how this
type worked.)
This commit is contained in:
Nicholas Nethercote 2024-05-06 15:36:46 +10:00
parent 55b6ff8e41
commit d7814e72eb
1 changed files with 3 additions and 1 deletions
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4
compiler/rustc_data_structures/src/packed.rs
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@ -3,8 +3,10 @@ use rustc_serialize::{Decodable, Decoder, Encodable, Encoder};
use std::cmp::Ordering; use std::cmp::Ordering;
use std::fmt; use std::fmt;
#[repr(packed(8))] /// A packed 128-bit integer. Useful for reducing the size of structures in
/// some cases.
#[derive(Copy, Clone, Debug, Hash, PartialEq, Eq, PartialOrd, Ord)] #[derive(Copy, Clone, Debug, Hash, PartialEq, Eq, PartialOrd, Ord)]
#[repr(packed(8))]
pub struct Pu128(pub u128); pub struct Pu128(pub u128);
impl Pu128 { impl Pu128 {