Consider a Rust program that must create many instances of a struct in memory. The size in bytes of each struct will begin to matter to the program's performance. With repr packed, we can change the struct layout to be condensed for minimal memory usage. This can speed up (or slow down...
structpacked_wo_copy{shortf1;charf2[0]; } __attribute__((packed)); This is exactly copied from#2200. That's not exactly the case that triggered errors for me, but that one involved nested types with attribute aligned and whatsonot -- effect should be the same. Bindgen Invocation Diverg...
Also, even a "standard" Rust struct allocated at an unaligned address would result in unaligned references. But 7 is an aligned address for Outer, that's the problem. The documentation only mentions that it modifies the padding of the structure, and not the address alignment: https://doc.r...
In Rust speak, a resource is a struct and attributes are fields in that struct. Many fields are Option<T> because they are optional and not always defined.Serialization Format High-Level Overview The serialization format consists of: A global header containing identifying magic and describing the...
and a packed type in Rust, then they should be ABI-compatible. But currently they are not. If you take the typePfrom my example, declare an equivalent type in C, have a C function that takes astruct Pas argument, and call it from Rust, then things will explode in the most amazing ...
I was under the impression that the Rust team wants to disallow references to packed struct fields simply because it is considered "wrong", not because of soundness. I now understand that this is not actually the case and there is still room for discussion on this topic, which I will try...
The following code (playground) ICEs with error: internal compiler error: /checkout/src/librustc/ty/layout.rs:603: Struct cannot be packed and aligned: #![feature(repr_align, attr_literals)] #[repr(packed)] #[repr(align(4))] pub struct BadStruct { foo: i32 } fn main() { Bad...
Rust Library for serialization of javascript objects from and to c like packed structs as an Uint8Array. typescripttypesafestructuint8arraypacked UpdatedJun 6, 2024 TypeScript Tool for me, that built packed Resource File(s) delphitoolsresourceprogramming-toolspackedembeeded ...
API docs are being generated and will be shortly available at: https://godot-rust.github.io/docs/gdext/pr-1023 Speed up creating and extending packed arrays from iterators up to 63× … f2e267d ttencate force-pushed the perf/packed_array_extend branch from 30677e3 to f2e267d Compare ...
Tracking issue for SIMD support rust-lang/rust#27731 Closed Refiling "#[repr(simd)] struct(isize, isize) not allowed" rust-lang/rust#55078 Closed Centril added A-simd A-types-libstd labels Nov 22, 2018 paddyhoran mentioned this pull request Jan 22, 2019 [WIP] [Rust] Add ex...