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Summary: The previous two changesets bump up a few dependencies. This is the companion mach rust vendor. Test Plan: It builds. Reviewers: ted Tags: #secure-revision Bug #: 1497446 --HG-- extra : amend_source : 6eeef28181e1e72891e1f3ad1d67b70cdf926e21 extra : histedit_source : e6af1b38e2272656c543f6c4f9778e80e6c75fd9 |
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| src | ||
| tests | ||
| .cargo-checksum.json | ||
| .travis.yml | ||
| Cargo.toml | ||
| LICENSE | ||
| README.md | ||
| rustfmt.toml | ||
generic-array
This crate implements generic array types for Rust.
Usage
The Rust arrays [T; N] are problematic in that they can't be used generically with respect to N, so for example this won't work:
struct Foo<N> {
data: [i32; N]
}
generic-array defines a new trait ArrayLength<T> and a struct GenericArray<T, N: ArrayLength<T>>, which let the above be implemented as:
struct Foo<N: ArrayLength<i32>> {
data: GenericArray<i32, N>
}
To actually define a type implementing ArrayLength, you can use unsigned integer types defined in typenum crate - for example, GenericArray<T, U5> would work almost like [T; 5] :)
In version 0.1.1 an arr! macro was introduced, allowing for creation of arrays as shown below:
let array = arr![u32; 1, 2, 3];
assert_eq!(array[2], 3);