tustvold commented on code in PR #4681:
URL: https://github.com/apache/arrow-rs/pull/4681#discussion_r1291220233
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arrow-data/src/data.rs:
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@@ -1589,10 +1611,13 @@ pub struct DataTypeLayout {
}
impl DataTypeLayout {
- /// Describes a basic numeric array where each element has a fixed width
- pub fn new_fixed_width(byte_width: usize) -> Self {
+ /// Describes a basic numeric array where each element has type `T`
+ pub fn new_fixed_width<T>() -> Self {
Self {
- buffers: vec![BufferSpec::FixedWidth { byte_width }],
+ buffers: vec![BufferSpec::FixedWidth {
+ byte_width: mem::size_of::<T>(),
+ alignment: mem::align_of::<T>(),
Review Comment:
> Like why not just align everything to 256bits
We do, Rust doesn't :smile:
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